@conference {17_NEMO_EDU_JUAN_CAD2_ANTENNA,
	title = {Slotted Waveguide Antenna Design by Segmented Simulation and Multi-Objective Genetic Algorithm},
	booktitle = {IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization for RF, Microwave and Terahertz Applications (NEMO)},
	year = {2017},
	month = {May},
	abstract = {A progressive-wave antenna automated design technique is presented in this work. By means of a simulation method based on spherical wave expansion and generalized scattering matrix, full-wave analysis of a slotted waveguide array can be efficiently performed. Since coupling effects are considered in the simulation, a final antenna design can be obtained without any further modification required on it. In order to achieve such design, a multi-objective optimization based on Nondominated Sorting Genetic Algorithm Version III (NSGA-III) state-of-theart genetic algorithm is carried out. At the working frequency of 17 GHz, final design provides a 16.6 dBi gain, Side-Lobe Levels lower than -18.3 dB and a 0.6\% power waste at the output port. A -15-dB matching bandwidth of an 8.8\% is obtained. The results have been validated with commercial-software simulations.},
	author = {E Garcia-Marin and J C{\'o}rcoles and J Rubio and J L Masa-Campos and P Sanchez-Olivares}
}
@conference {rubio2016shaped,
	title = {Shaped beam synthesis of sparse arrays of coupled elements through a modified Orthogonal Matching Pursuit algorithm and multiple dictionaries},
	booktitle = {Antennas and Propagation (EuCAP), 2016 10th European Conference on},
	year = {2016},
	pages = {1{\textendash}3},
	publisher = {IEEE},
	organization = {IEEE},
	author = {Rubio, Jes{\'u}s and J C{\'o}rcoles and Izquierdo, Juan F and G{\'o}mez-Alcal{\'a}, Rafel and Gil, Jos{\'e} M}
}
@conference {15_EUCAP_Rubio_mutualcoupling,
	title = {On the simultaneous mutual-coupling compensation for all the space directions},
	booktitle = {Antennas and Propagation (EUCAP), 2015 9th European Conference on},
	year = {2015},
	month = {April},
	pages = {1-4},
	author = {J Rubio and J F Izquierdo and J C{\'o}rcoles}
}
@conference {14_EuMC_Ruiz-CruzFahmiMansour_Single-PoleMultiple-ThrowWaveguide,
	title = {Single-Pole Multiple-Throw Waveguide Switch for Twelve Output Ports},
	booktitle = {Proc. 44th European Microwave Conference},
	year = {2014},
	issn = {978-1-61284-235-6},
	author = {J A Ruiz-Cruz and Fahmi, M M and Mansour, R R}
}
@article {13_IEEEMWCL_Leal-SevillanoReckJung-KubiakEtAl_SiliconMicromachinedCanonicalTHz,
	title = {Silicon Micromachined Canonical E-Plane and H-Plane Bandpass Filters at the Terahertz Band},
	journal = {IEEE Microwave and Wireless Components Letters},
	volume = {23},
	number = {6},
	year = {2013},
	month = {June},
	pages = {288-290},
	abstract = {In this letter, several bandpass filters operating in the WR-1.5 band (500 to 750 GHz) are presented. The deep reactive ion etching (DRIE) silicon micromachining process is used for the fabrication of the filters. Two canonical filter topologies based on E- and H-plane are implemented. The work presented here has two specific objectives: a) to get important fabrication process parameters, such as tolerances, vertical angles, surface roughness, and repeatability and b) to validate the proper working of the waveguide filters in the terahertz band. These filters do not have any tuning element. Experimental results show better than 10 dB return loss and approximately 1 and 2.5 dB insertion loss (for 6\% fractional bandwidth) for the E- and H-plane topology, respectively. The obtained results are in agreement with fabrication tolerances of 2 micrometers and vertical angles deviations up to 3{\^A}{\textdegree}.},
	keywords = {Deep reactive ion etching (DRIE), filter, micromachining, terahertz, WR-15},
	issn = {1531-1309},
	doi = {10.1109/LMWC.2013.2258097},
	url = {http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6509458},
	author = {C A Leal-Sevillano and Reck, T J and Jung-Kubiak, C and Chattopadhyay, G. and J A Ruiz-Cruz and Montejo-Garai, J R and Rebollar, J M}
}
@conference {13_IMS_Ruiz-CruzFahmiMansour_Single-PoleSix-ThrowWaveguideSwitch,
	title = {Single-Pole Six-Throw Waveguide Switch Embedded in a Seven Port Loaded Junction},
	booktitle = {2013 IEEE MTT-S International Microwave Symposium Digest},
	year = {2013},
	month = {Nov},
	pages = {1-4},
	abstract = {A waveguide switch with six states involving seven ports is presented in this paper. It consists of a common port that feeds perpendicularly six output routing branches placed in the same plane. The switch is based on actuating short circuit loads in six ridge waveguide branches. It avoids the use of complex rotary systems to provide path switching, resulting in an extremely compact profile and simplifying the manufacturing. The concept is presented based on rigorous full-wave simulations and experimental results of a Ku-band SP6T, which is designed, built and tested. The experimental proof of this new switch integrates the transitions to SMA outputs and the short-circuit loads. It shows measured return loss better than 25 dB in a 12\% fractional bandwidth in the best state and 20 dB in an 8\% bandwidth in the worst state. The isolation of this prototype is at least 32 dB, with insertion loss of 0.3-0.4 dB.},
	author = {J A Ruiz-Cruz and Fahmi, M M and Mansour, R R}
}
@article {13_PIERC_Sanchez-OlivaresMasa-CamposRuiz-CruzEtAl_SIW2DPlanar4CrossSlotsTuningvias,
	title = {SIW 2D Planar Array with Four Cross Slots Radiator and Tuning Vias},
	journal = {Progress In Electromagnetics Research C},
	volume = {40},
	year = {2013},
	pages = {83-92},
	abstract = {A Substrate Integrated Waveguide (SIW) planar array is presented using a right handed circularly polarized (RHCP) element with four crossed tilted radiating slots. In addition, a pair of metallic tuning vias is included to really improve the reflection of longest slots. A corporate feeding network over SIW has been designed for distributing the input signal to 128 radiating elements, divided into 8 progressive wave linear arrays of 16 elements each. The designed planar array has been manufactured and measured to verify the antenna performance. 25.5 dB gain, 2.33 dB axial ratio, as well as 85\% radiation efficiency values have been experimentally achieved at 17 GHz. A 3\% usable bandwidth (16.75-17.25 GHz) is obtained due to the typical frequency main beam tilt dispersion in the elevation plane of the progressive wave arrays.},
	issn = {1937-8718},
	doi = {10.2528/PIERC13040905},
	url = {http://www.jpier.org/PIERC/pier.php?paper=13040905},
	author = {P Sanchez-Olivares and J L Masa-Campos and J A Ruiz-Cruz and B Taha-Ahmed}
}
@conference {APS-URSI-2013,
	title = {SIW patch array with internal coupling patches},
	booktitle = {Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE},
	year = {2013},
	month = {July},
	pages = {1800-1801},
	abstract = {A Substrate Integrated Waveguide (SIW) has been used to feed a progressive wave linear array of 16 double stacked patches. The amplitude and phase performance has been achieved by means of coupling patches, which are placed inside the SIW. An antenna prototype has been manufactured with a multilayer PCB structure. 16 dBi and 80 \% peak gain and efficiency values at 17.7 GHz have been measured. A 10\% reflection bandwidth (17 - 18.6 GHz) is achieved, although the usable bandwidth is reduced to 3\% due to the typical array beam tilt dispersion of this kind of designs.},
	keywords = {Antenna measurements, antenna prototype, Antennas, array beam, Arrays, bandwidth 17 GHz to 18.6 GHz, Couplings, double stacked patches, Gain, internal coupling patches, linear antenna arrays, microstrip antenna arrays, Nonhomogeneous media, PCB structure, printed circuits, progressive wave linear array, SIW patch array, substrate integrated waveguide, substrate integrated waveguides, Substrates, tilt dispersion},
	issn = {1522-3965},
	doi = {10.1109/APS.2013.6711559},
	author = {J L Masa-Campos and D Garcia-Valverde and P Sanchez-Olivares and B Taha-Ahmed}
}
@conference {13_EIEC_RubioetAl_SphericalModesinCEM,
	title = {Spherical Modes in Computational Electromagnetics applied to Antenna Problems},
	booktitle = {IX Iberian Meeting on Computational Electromagnetism},
	year = {2013},
	month = {May},
	pages = {1},
	abstract = {In this work we review the use of spherical modes in computational electromagnetics mainly applied to antenna problems. First, the theory of spherical modes will be reviewed. Second, the use jointly with the Finite Element Method will be exposed. Third, the application to the analysis of finite arrays will be shown. Finally, it will be presented how the spherical modes allow us to obtain an equivalent model of the antenna, in terms of infinitesimal dipoles, which increases the capabilities of the method for the analysis of finite arrays.},
	author = {Rubio, J and Izquierdo, J F and Gonz{\'a}lez, M A and Gil, J M and Garc{\'\i}a, J and de la Rubia, V and J C{\'o}rcoles and Zapata, J}
}
@article {18_Propagation5.5GHzPIER,
	title = {Short Range Propagation Model For a Very Wideband Directive Channel at 5.5 GHz Band},
	journal = {PIER - Progress in Electromagnetics Research},
	volume = {130},
	year = {2012},
	month = {Sep.},
	pages = {319-346},
	abstract = {In this work, the propagation loss of three short range directive channels at 5.5 GHz is measured using different directive antennas and a Vector Network Analyzer (VNA). Results are given for a channel bandwidth of 300 MHz which will be the future channel bandwidth of IEEE 802.11 ac system. It has been noted that the multipath induced fading tends to have Normal Distribution at low distance between the transmitting and the reception antennas. At higher distances, it tends to have Normal distribution plus Rayleigh one. Channel Impulse response (CIR) is also measured indicating that the main contribution is due to the direct ray and the one reflected from the floor. The human being obstruction causes an extra propagation loss of 2 to 10 dB depending on its distance from the transmitting antenna.},
	issn = {1559-8985},
	doi = {10.2528/PIER12060509},
	url = {http://www.jpier.org/PIER/pier130/16.12060509.pdf},
	author = {B Taha-Ahmed and F Fern{\'a}ndez-Campillo and J L Masa-Campos}
}
@conference {12_EUCAP_SANCHEZ-OLIVARES_16siw,
	title = {Slot radiator with tuning vias for circularly polarized SIW linear array},
	booktitle = {Antennas and Propagation (EUCAP), 2012 6th European Conference on},
	year = {2012},
	month = {March},
	pages = {3716-3720},
	abstract = {A 16-element circularly polarized (CP) Substrate Integrated Waveguide (SIW) linear array antenna with -26 dB Taylor distribution and 2\% residue power at 17 GHz is designed. The single element consists of four crossed inclined radiating slots. In this configuration, reflection goals on the linear array are not fully achieved. For this reason a tuning element is included on some of the individual radiating elements, which consists of a pair of metallic vias that greatly enhances the reflection of longest slots. Therefore, the antenna reflection is also improved. A global antenna prototype is manufacture to check the new slot element performance in an array configuration. The specified operation band is 16.3 to 17.7 GHz.},
	keywords = {16-element circularly-polarized SIW linear array antenna, antenna radiation patterns, antenna reflection, Arrays, circular polarization (CP), electromagnetic wave polarisation, frequency 16.3 GHz to 17.7 GHz, linear antenna arrays, metallic vias, prototypes, radiating elements, Reflection, slot antenna arrays, Slot antennas, Slot array antenna, slot radiator, slot reflection, substrate integrated waveguide, substrate integrated waveguide (SIW), substrate integrated waveguides, Substrates, Taylor distribution, Tuning, tuning element, tuning via, tuning vias},
	doi = {10.1109/EuCAP.2012.6205816},
	author = {P Sanchez-Olivares and J L Masa-Campos}
}
@conference {12_ICEAA_Montejo-GaraiLeal-SevillanoRuiz-CruzEtAl_SymmetricalResponseFilterBartlett,
	title = {Symmetrical Response Filter Design Applying the Bartlett{\^a}{\texteuro}{\texttrademark}s Theorem and Using Riblet{\^a}{\texteuro}{\texttrademark}s Couplers},
	booktitle = {Proc. International Conference on Electromagnetics in Advanced Applications (ICEAA)},
	year = {2012},
	month = {Sep.},
	pages = {1-4},
	keywords = {corrugated waveguide, dual-band, mode-matching, optimization, Waveguide polarizers},
	author = {Montejo-Garai, J R and C A Leal-Sevillano and J A Ruiz-Cruz and Rebollar, J M}
}
@article {12_FED_Montejo-GaraiLeal-SevillanoRuiz-CruzEtAl_SynthesisanddesignPlasma,
	title = {Synthesis and design of waveguide band-stop filters without out-of-band spurious responses for plasma diagnosis},
	journal = {Fusion Engineering and Design},
	volume = {89},
	number = {9},
	year = {2012},
	month = {September},
	pages = {1662-1666},
	issn = {0920-3796},
	doi = {10.1016},
	url = {http://www.sciencedirect.com/science/article/pii/S0920379612003146},
	author = {Montejo-Garai, J R and C A Leal-Sevillano and J A Ruiz-Cruz and Rebollar, J M and Estrada, T}
}
@article {11_MEE_OfliCrespo-ValeroRuiz-CruzEtAl_SEMCADXMicrowaveWg,
	title = {SEMCAD X Microwave: Enhanced Simulation of Waveguide Structures},
	journal = {Microwave Engineering Europe},
	volume = {September},
	year = {2011},
	pages = {12-15},
	abstract = {A general and rigorous formulation is proposed for the analysis of hollow metallic waveguides from the gigahertz to the terahertz band. The analysis is based on a hybrid mode formulation and the Drude model for the dielectric permittivity of metallic conductors. The obtained results for the circular waveguide are compared with the classical microwave approach (surface impedance approximation or Leontovich condition). The validity range of the surface impedance approximation in both the propagation constant and the electromagnetic field pattern is studied. As a consequence, a direct relation between the error in the propagation constant and the electromagnetic field configuration is shown. Moreover, this formulation shows the evolution in the field pattern: from TE=TM modes at microwaves to the so-called Surface Plasmon Polariton at terahertz frequencies},
	issn = {0332-1649},
	url = {http://www.microwave-eetimes.com/en/magazine/mwee-2010.html},
	author = {Ofli, E and Crespo-Valero, P and J A Ruiz-Cruz and C A Leal-Sevillano and Montejo-Garai, J R and Rebollar, J M}
}
@article {11_IJoE_Ruiz-CruzMontejo-GaraiRebollar_Short-slotArbPowerDiv,
	title = {Short-slot E- and H-plane waveguide couplers with an arbitrary power division ratio},
	journal = {International Journal of Electronics},
	volume = {98},
	number = {1},
	year = {2011},
	note = {falta pos en JCR de su a{\~n}o},
	month = {Jan.},
	pages = {11-24},
	abstract = {Short-slot couplers are a particular type of waveguide directional coupler commonly used due to their compact size in comparison with other waveguide configurations. The common short-slot Riblet coupler is used as a 3 dB hybrid (equal power division to the coupled and the through ports) in microwave networks supporting high power and providing good performance over a moderate bandwidth. In this article, the general case of short-slot couplers with arbitrary power division is presented, in E- or H-plane configuration. Moreover, it is shown that the port closer to the input can handle either more or less power than the further port, depending on the design parameters and the length of the main guide of the coupler. Several designs in E- and H-plane are shown to introduce the concept. In addition, two experimental prototypes, with either rectangular waveguide interfaces or coaxial input/output, are manufactured and tested showing good agreement with the expected results.},
	issn = {0020-7217},
	doi = {10.1080/00207217.2010.488913},
	url = {http://www.informaworld.com/smpp/content~db=all~content=a931813059~frm=titlelink},
	author = {J A Ruiz-Cruz and Montejo-Garai, J R and Rebollar, J M}
}
@article {11_TAP_CorcolesRubio_SphericalSynthesis,
	title = {Spherical-Wave-Based Shaped-Beam Field Synthesis for Planar Arrays Including the Mutual Coupling Effects},
	journal = {IEEE Transactions on Antennas and Propagation},
	volume = {59},
	number = {8},
	year = {2011},
	month = {Aug},
	pages = {2872-2881},
	abstract = {An analytical method to synthesize shaped-beam patterns with planar arrays, based on the handling of spherical waves, is proposed. Translational Addition Theorems will be used here for two different purposes: (1) relating the spherical modes produced by each element in the array to calculate the mutual coupling effects, and (2) expressing the field radiated by each element in terms of spherical modes corresponding to the whole array, to carry out a spherical-wave synthesis procedure based on the orthogonal properties of spherical modes. This field synthesis method is based on the fact that any antenna radiated field can be expressed as a discrete series of weighted spherical vector wave functions and it only requires the a priori knowledge of the Generalized Scattering Matrix of each array element considered as isolated from the rest of the array elements.},
	keywords = {antenna feeds, antenna radiated field, antenna radiation patterns, Arrays, electromagnetic coupling, electromagnetic wave scattering, field synthesis method, generalized scattering matrix, GSM, Mutual coupling, mutual coupling effect, pattern field synthesis, planar antenna arrays, planar array, planar array element, Planar arrays, S-matrix theory, Scattering, spherical wave expansion, spherical-wave synthesis procedure, spherical-wave-based shaped-beam field synthesis, translational addition theorem, translational addition theorems, weighted spherical vector wave function},
	issn = {0018-926X},
	doi = {10.1109/TAP.2011.2158950},
	url = {http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=\&arnumber=5871276},
	author = {J C{\'o}rcoles and Rubio, J and Gonz{\'a}lez, M A}
}
@conference {10_EuCAP_Leal-SevillanoRuiz-CruzMontejo-GaraiEtAl_SimpleModelsTHz,
	title = {Simple Models For The Analysis Of Waveguiding Systems At The Terahertz Band Using Classical Microwave Approaches},
	booktitle = {Proc. 2010 European Conference on Antennas and Propagation (EuCap)},
	year = {2010},
	month = {Apr.},
	pages = {1-5},
	abstract = {Recently the terahertz band has focused so much attention from many research groups with the aim of designing full systems. The first task before designing devices in this band is to characterize waveguide systems. In this contribution the analysis of different waveguides systems in the terahertz band is presented. The analysis is based on a hybrid mode formulation and the Drude model for the dielectric permittivity of the metallic conductor. A comparison between the exact results obtained with this last formulation and those using classical microwave approaches (surface impedance approximation or Leontovich{\^A}{\textasciiacute}s condition) is done in order to determine the validity range of the approximations in both the propagation constant and the electromagnetic field pattern.},
	url = {http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=05505379},
	author = {C A Leal-Sevillano and J A Ruiz-Cruz and Montejo-Garai, J R and Rebollar, J M}
}
@conference {10_EIEC_RubioCorcoles_SintesisAnaliticaModosEsfericos,
	title = {S{\'\i}ntesis anal{\'\i}tica de agrupaciones planas basada en traslaci{\'o}n de modos esf{\'e}ricos},
	booktitle = {VII Iberian Meeting on Computational Electromagnetism (in Spanish)},
	year = {2010},
	month = {May},
	pages = {1},
	abstract = {Se presenta en este trabajo un m{\'e}todo anal{\'\i}tico de s{\'\i}ntesis de haz conformado en agrupaciones planas basado en la manipulaci{\'o}n de modos esf{\'e}ricos. Los teoremas de traslaci{\'o}n se utilizan para dos fines diferentes: relacionar los modos esf{\'e}ricos de cada elemento de la agrupaci{\'o}n con el fin de calcular los efectos de acoplamiento mutuo, y expresar el campo producido por cada elemento en t{\'e}rminos de modos esf{\'e}ricos de todo el conjunto para aplicar un procedimiento de s{\'\i}ntesis esf{\'e}rica basada en las propiedades ortogonales de los modos esf{\'e}ricos. Este m{\'e}todo de s{\'\i}ntesis de campo se basa en el hecho de que cualquier campo radiado de la antena puede expresarse como una serie discreta ponderada de funciones vectoriales esf{\'e}ricas y s{\'o}lo requiere el conocimiento a priori de la matriz de dispersi{\'o}n generalizada de cada elemento de la agrupaci{\'o}n considerado aislado del resto.},
	author = {Rubio, J and J C{\'o}rcoles and Gonz{\'a}lez, M A}
}
@article {10_IEEETMTT_Medina-MenaMesa-LedesmaRuiz-CruzEtAl_StudyEOTCircularWg,
	title = {Study of Extraordinary Transmission in a Circular Waveguide System},
	journal = {IEEE Transactions on Microwave Theory and Techniques},
	volume = {58},
	number = {6},
	year = {2010},
	month = {June},
	pages = {1532-1542},
	abstract = {Extraordinary transmission through periodic distributions of sub-wavelength holes made in opaque screens has been demonstrated and exhaustively studied along the last decade. More recently, extraordinary transmission has also been predicted and experimentally observed through electrically small diaphragms located inside hollow pipe waveguides. This last phenomenon cannot be explained in terms of surface waves excited along the periodic system (the so-called surface plasmon polaritons). Transverse resonances can be invoked, however, as a sound explanation for extraordinary transmission in this kind of systems. In this paper, a simple waveguide system, exhibiting exactly the same behavior previously observed in periodic 2-D arrays of holes, is analyzed in depth. Analogies and differences with the periodic case are discussed. The theoretical and experimental results reported in this paper provide strong evidence in favor of the point of view emphasizing the concept of impedance matching versus surface wave excitation. The role of material losses is discussed as an important practical issue limiting the maximum achievable subwavelength transmission level. Most of our conclusions can be applied to both periodic arrays of holes and diaphragms in closed waveguides.},
	issn = {0018-9480},
	doi = {10.1109/TMTT.2010.2048254},
	url = {http://ieeexplore.ieee.org/search/srchabstract.jsp?tp=\&arnumber=5462973\&queryText\%3Dmedina+ruiz-cruz\%26openedRefinements\%3D*\%26searchField\%3DSearch+All},
	author = {Medina-Mena, F and Mesa-Ledesma, F and J A Ruiz-Cruz and Rebollar, J M and Montejo-Garai, J R}
}
@conference {09_URSIESP_Montejo-GaraiRuiz-CruzRebollar_SintElipSinglyMux,
	title = {S{\'\i}ntesis de Filtros El{\'\i}pticos Single-Terminated Sim{\'e}tricos y Asim{\'e}tricos para Multiplexaci{\'o}n},
	booktitle = {Proc. 2009 Simposium Nacional URSI (in Spanish)},
	year = {2009},
	month = {Sept.},
	pages = {1-4},
	abstract = {An extension of the Cauer ladder development for synthesizing singly-terminated filters with symmetric and asymmetric responses is presented. Basically, a driving{\^a}{\texteuro}{\textquotedblleft}point immittance including reactive constant elements is carried out in such a way that provides the transmission zeros. The reactive constant elements are introduced into the synthesis for two reasons. The first is to considerer the possibility of the asymmetric position of transmission zeros in the real frequency axis. The second one is to obtain canonical forms, i.e. networks with the minimum number of elements in the case of symmetrical responses. In order to validate the proposed method, a filter with asymmetrical response has been synthesized, comparing different topologies for its use in multiplexers. This fact is illustrated with a Ku-band elliptic response diplexer designed in H-plane rectangular waveguide.},
	url = {http://w3.iec.csic.es/ursi/articulos_modernos/Cantabria2009/files/Sintesis_URSI_20091240904977.pdf},
	author = {Montejo-Garai, J R and J A Ruiz-Cruz and Rebollar, J M}
}
@conference {09_URSIESP_Corcoles_SintesisdeFourier,
	title = {S{\'\i}ntesis de Fourier para agrupaciones lineales de antenas reales y acopladas},
	booktitle = {Proc. 2009 Simposium Nacional URSI (in Spanish)},
	year = {2009},
	month = {Sep},
	pages = {1-4},
	abstract = {This work presents a novel and simple pattern synthesis procedure for lineal and equispaced arrays that considers real individual antenna elements{\textquoteright} patterns and includes the mutual coupling between elements. It is an extension of the classic design techniques of the Fourier series method or the Woodward-Lawson frequency sampling method based on the expansion of the radiated field of the individual array elements in spherical modes, and the characterization of the whole array from a generalized scattering matrix},
	author = {J C{\'o}rcoles and Gonz{\'a}lez, M A and Rubio, J}
}
@conference {09_CNES_Montejo-GaraiRuiz-CruzRebollar_DiplexerAsymmetricSingly,
	title = {Synthesis and Design of a Diplexer with Asymmetric Singly-Terminated Elliptic Ladder Filters},
	booktitle = {Proc. 2009 Int. Workshop on Microwave Filters CNES-ESA},
	year = {2009},
	month = {Nov.},
	pages = {1-6},
	author = {Montejo-Garai, J R and J A Ruiz-Cruz and Rebollar, J M}
}
@article {09_IJRFMiCAE_Montejo-GaraiRuiz-CruzRebollar_SynthesisSinglyEllipticLadderFilters,
	title = {Synthesis of Symmetric and Asymmetric Singly-Terminated Elliptic Ladder Filters for Multiplexing Applications},
	journal = {International Journal of RF and Microwave Computer-Aided Engineering},
	volume = {19},
	number = {4},
	year = {2009},
	month = {July},
	pages = {443-452},
	abstract = {An extension of the Cauer ladder development for synthesizing singly terminated filters with symmetric and asymmetric responses is presented. Basically, a driving-point immittance including reactive constant elements is carried out in such a way that provides the transmission zeros. The reactive constant elements are introduced into the synthesis for two reasons. The first is to consider the possibility of the asymmetric position of transmission zeros in the real frequency axis. The second one is to obtain canonical forms, i.e. networks with the minimum number of elements in the case of symmetrical responses. To validate the proposed method, a filter with asymmetrical response has been synthesized, comparing different topologies for its use in multiplexers. This fact is illustrated with a Ku-band elliptic response diplexer designed in H-plane rectangular waveguide. {\^A}{\textcopyright} 2009 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2009.},
	keywords = {diplexer, filter synthesis, pole removal, singly terminated, zero-shifting},
	issn = {1096-4290},
	doi = {10.1002/mmce.20366},
	url = {http://www3.interscience.wiley.com/cgi-bin/fulltext/122322557/PDFSTART},
	author = {Montejo-Garai, J R and J A Ruiz-Cruz and Rebollar, J M}
}
@conference {05_APS_CorcolesSalazar_SelfAdaptiveFEM,
	title = {Self-adaptive algorithms based on h-refinement applied to finite element method},
	booktitle = {Antennas and Propagation Society International Symposium, 2005 IEEE},
	volume = {4B},
	year = {2005},
	month = {July},
	pages = {197-200 vol. 4B},
	abstract = {Two error indicators of the solution of an electromagnetic problem by the finite element method (FEM) and two local refinement algorithms for tetrahedral meshes are developed and combined to build up different self-adaptive (h-refinement) algorithms. 2nd order curl-conforming Nedelec tetrahedral elements are used. The performance of the different methods is checked and compared by means of the electromagnetic analysis of resonant cavities.},
	keywords = {2nd order curl-conforming Nedelec tetrahedral elements, cavity resonators, computational electromagnetics, Convergence, Eigenvalues and eigenfunctions, Electromagnetic analysis, electromagnetic problem, Erbium, error indicators, finite element analysis, finite element method, finite element methods, h-refinement, Least squares approximation, Maxwell equations, Performance analysis, Resonance, resonant cavities, self-adaptive algorithms, Software performance, tetrahedral meshes},
	doi = {10.1109/APS.2005.1552777},
	url = {http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=\&arnumber=1552777},
	author = {J C{\'o}rcoles-Ortega and Salazar-Palma, M}
}
@conference {05_URSIUSA_Ruiz-CruzMontejo-GaraiRebollar_Simpleequivalentcircuit,
	title = {Simple equivalent circuit of multi-aperture rectangular iris in rectangular waveguide},
	booktitle = {Proc. 2005 USNC/URSI National Radio Science Meeting},
	year = {2005},
	month = {July},
	pages = {1},
	abstract = {The rejection produced by a multi-apertures iris can be a very useful tool in the design of some kind of filters: a) band pass filters with some improved stop band attenuation as it has been proposed at (A A Kirilenko, MSMW{\textquoteright}2001 Symposium, 690-692), and b) harmonic rejection filters for the dominant and higher waveguide modes (A A Kirilenko,IEEE MTT-S Digest, 373-376). An alternative interpretation of the resonance of this multi-apertures iris in terms of the excitation of a Transverse Electro-Magnetic field (TEM) of the structure has been proposed by the authors of this contribution at (2003 USNC/URSI Symp., 226) and ( 2004 USNC/URSI Symp., 45). Moreover, this interpretation can be useful to control and prevent some spurious resonance that arise at some rectangular waveguide devices, therefore helping the designer to improve their electrical performances. In this paper, with the main aim to implement an efficient computer aided design tool for waveguide filters, a simple equivalent circuit in terms of lumped elements is proposed for multi-apertures iris with the mentioned resonant TEM behaviour. As an example of the proposed equivalent circuit, a classical band pass filter of asymmetrical inductive windows have been modified by introducing slots in the irises to obtain additional stop band attenuation out of band response. This additional attenuation band is achieved without increasing the number of cavities of the filter, therefore with the same dimensions and very similar insertion losses at its band pass. Further information regarding the design process for the Ka-band filter, and results such as fullwave response and the relative convergence problem of the analysis will be commented in the oral presentation.},
	author = {J A Ruiz-Cruz and Montejo-Garai, J R and Rebollar, J M}
}
@conference {05_EuMC_Montejo-GaraiRuiz-CruzRebollar_Synthesisanddesign,
	title = {Synthesis and design of a manifold triplexer implemented in a three layer rectangular H-plane waveguide},
	booktitle = {Proc. 35th European Microwave Conference},
	volume = {1},
	year = {2005},
	month = {Oct.},
	pages = {1-4},
	abstract = {In this article, a new procedure for the design and construction of a contiguous band manifold triplexer in H-plane configuration is presented. Such a configuration eliminates the slots between the T-junctions and the filters allowing high power handling as well as reducing dramatically the risk of multipactor. In addition, the device has been manufactured using a three layer sandwich configuration. In this way, the classical milling machine has been replaced by a wire-electric-milling one. The rounded corners are removed and consequently the tuning process is practically eliminated. In order to validate the above performance, a Ku-band triplexer has been designed, manufactured and measured.},
	keywords = {contiguous band manifold triplexer, microwave devices, multiplexing equipment, rectangular waveguides, slot lines Ku-band triplexer, three layer rectangular H-plane waveguide, three layer sandwich configuration, wire-electric-milling machine},
	issn = {2-9600551-2-8},
	doi = {10.1109/EUMC.2005.1608801},
	url = {http://ieeexplore.ieee.org/iel5/10686/33788/01608801.pdf?tp=\&isnumber=\&arnumber=1608801},
	author = {Montejo-Garai, J R and J A Ruiz-Cruz and Rebollar, J M}
}
@article {05_IEEETMTT_Montejo-GaraiRuiz-CruzRebollarEtAl_Synthesisanddesign,
	title = {Synthesis and design of in-line N-order filters with N real transmission zeros by means of extracted poles implemented in low-cost rectangular H-plane waveguide},
	journal = {IEEE Transactions on Microwave Theory and Techniques},
	volume = {53},
	number = {5},
	year = {2005},
	month = {May},
	pages = {1636-1642},
	abstract = {In this paper, an extension to the extracted pole technique for synthesizing N-order filters with N-transmission zeros at real frequencies is presented. In addition, a new bandpass rectangular waveguide H-plane low-cost configuration filter for high-power low-loss application (patent pending) that implements a filtering function with finite real frequency transmission zeros is proposed. This structure operates as a resonant cavity in transmission at central frequency of the bandpass and simultaneously introduces a controlled transmission zero out of the bandpass. Since every double-controlled electrical behavior cavity introduces a transmission zero, it is possible to introduce as many transmission zeros as the order of the filtering function. In order to validate the synthesis procedure and the new structure, different filters have been designed: a second-order filter with two transmission zeros, a third-order filter with one transmission zero, a fourth-order filter with two transmission zeros, and finally, an eighth-order filter with two transmission zeros. The last two have been manufactured, showing an excellent agreement between the measurement and theoretical simulation.},
	keywords = {band-pass filters, double-controlled electrical behavior cavity, eighth-order filter, extracted pole technique, filter synthesis, filtering function, finite real frequency transmission zeros, fourth-order filter, in-line N-order filters, network synthesis, planar waveguides, poles and zeros, rectangular H-plane waveguide, rectangular waveguides, resonant cavity, second-order filter, third-order filter, waveguide filters bandpass rectangular waveguide H-plane filter},
	issn = {0018-9480},
	doi = {10.1109/TMTT.2005.847053},
	url = {http://ieeexplore.ieee.org/iel5/22/30829/01427966.pdf?tp=\&isnumber=\&arnumber=1427966},
	author = {Montejo-Garai, J R and J A Ruiz-Cruz and Rebollar, J M and Padilla-Cruz, M J and Onoro-Navarro,A and Hidalgo-Carpintero, I}
}
@conference {00_MMS_Ruiz-CruzRebollar_Somepropertiesof,
	title = {Some properties of generalized matrices and their application to the Mode-Matching technique},
	booktitle = {Proc. 2000 International Mediterranean Microwave Symp.},
	year = {2000},
	month = {May},
	pages = {62-65},
	author = {J A Ruiz-Cruz and Rebollar, J M}
}
