@article {19_ANT_MAG_PABLO_PAULA_CONFORMADA_DIODOSPIN_3_5GHZ,
	title = {Circular Conformal Array Antenna With Omnidirectional and Beamsteering Capabilities for 5G Communications in the 3.5-GHz Range [Wireless Corner]},
	journal = {IEEE Antennas and Propagation Magazine},
	volume = {61},
	number = {4},
	year = {2019},
	month = {Aug},
	pages = {97-108},
	keywords = {5G communications, 5G mobile communication, 5G terrestrial communications, Antenna arrays, antenna radiation patterns, array elements, array signal processing, Beam steering, circular conformal array antenna, Conformal antenna, Conformal antennas, conformal structure, double-stacked microstrip patches, eight-way tunable feeding network, frequency 3.5 GHz, Frequency measurement, microstrip, microstrip antenna arrays, octagonal holding structure, omnidirectional antennas, omnidirectional radiation, P-i-n diodes, Power dividers, single radiating elements, T-junction operation modes, TFN network, tunable T-junctions},
	issn = {1558-4143},
	doi = {10.1109/MAP.2019.2920049},
	author = {P Sanchez-Olivares and P Sanchez-Dancausa and J L Masa-Campos and M Iglesias-Menendez-de-la-Vega and E Garcia-Marin}
}
@conference {18_URSI_PABLO_SANCHEZ,
	title = {Conformal Patch Array Antenna with Switchable Omnidirectional or Sectorial Coverage at 3.5 GHz},
	booktitle = {Simposium Nacional URSI 2018},
	year = {2018},
	month = {September},
	abstract = {A circularly conformal array antenna with beam steering capabilities as well as omnidirectional performance in S-band is presented. The single radiating elements are formed by double stacked microstrip patches placed on the planar faces of an octagonal supporting structure fabricated with a 3D printer. An eight-way tunable feeding network in microstrip technology is designed, manufactured and integrated into the conformal structure in order to excite the array elements. Novel tunable T-junctions based on PIN diodes are proposed to form the tunable feeding network. This novel T-junction allows a splitting configuration with uniform distribution to the two output ports, or a switching mode to deliver the signal to either output port. In all T-junction operation modes, a good input matching performance is achieved. The tunable feeding network is integrated into the conformal antenna and digitally controlled by a microcontroller Arduino UNO. A total of 29 states, grouped in 6 modes with a global matching bandwidth of 17.2\% can be selected. An omnidirectional radiation as well as beam steered directional patterns (covering 360 deg) can be electronically selected. The proposed antenna is able for future 5G terrestrial communications in the 3.5 GHz IMT range.},
	author = {P Sanchez-Olivares and P P Sanchez-Dancausa and J L Masa-Campos and M Iglesias-Menendez-de-la-Vega and E Garcia-Marin}
}
@article {izquierdo2016efficient,
	title = {Efficient radiation antenna modeling via orthogonal matching pursuit in terms of infinitesimal dipoles},
	journal = {IEEE Antennas and Wireless Propagation Letters},
	volume = {15},
	year = {2016},
	pages = {444{\textendash}447},
	publisher = {IEEE},
	author = {Izquierdo, Juan F and Rubio, Jes{\'u}s and J C{\'o}rcoles and G{\'o}mez-Alcal{\'a}, Rafael}
}
@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}
}
@article {15_TAP_Rubio_ThinningOMP,
	title = {Array Thinning of Coupled Antennas Based on the Orthogonal Matching Pursuit Method and a Spherical-Wave Expansion for Far-Field Synthesis},
	journal = {Antennas and Propagation, IEEE Transactions on},
	volume = {63},
	number = {12},
	year = {2015},
	month = {Dec},
	pages = {5425-5432},
	abstract = {This work is focused on the array thinning problem in shaped beam far-field synthesis. The orthogonal matching pursuit algorithm, which allows finding sparse solutions in linear systems, is combined with a fast full-wave analysis method for antenna arrays based on a spherical wave expansion, thereby taking mutual coupling between real antennas into account in the thinning process. To this aim, the original iterative algorithm is modified so that the current residual is obtained for the selected real coupled antennas in each step of the algorithm. In this way, the remaining nonselected elements are effectively removed instead of turned off. Results for arrays made up of microstrip patch antennas and dielectric resonator antennas arranged in triangular and rectangular lattices are presented.},
	keywords = {Antenna arrays, array thinning problem, Arrays, coupled antennas, dielectric resonator antennas, far-field synthesis, fast full-wave analysis method, generalized scattering matrix, iterative algorithm, iterative methods, Layout, linear systems, Matching pursuit algorithms, microstrip antenna arrays, microstrip patch antennas, Mutual coupling, orthogonal matching pursuit method, pattern field synthesis, planar array, rectangular lattices, spherical wave expansion, spherical-wave expansion, translational addition theorems, Transmission line matrix methods, triangular lattices},
	issn = {0018-926X},
	doi = {10.1109/TAP.2015.2487506},
	author = {J Rubio and J C{\'o}rcoles and J F Izquierdo and R G{\'o}mez-Alcal{\'a}}
}
@article {15_TAP_RubioIzqdoCorcoles_ModalNetworkMIMO,
	title = {Mutual Coupling Compensation Matrices for Transmitting and Receiving Arrays},
	journal = {IEEE Transactions on Antennas and Propagation},
	volume = {63},
	number = {2},
	year = {2015},
	month = {Feb},
	pages = {839-843},
	abstract = {A general method to obtain a matrix which allows the compensation of mutual coupling effects in transmitting arrays for the total field in all directions is introduced. This method is independent of the numerical method used in the analysis and it can include the effect of the antenna platform. The starting point can be the active element patterns or the spherical mode expansion from spherical near-field antenna measurements. Additionally, the spherical mode expansion is also used to find a matrix which allows the compensation of mutual coupling effects in receiving arrays. Through this theory, a simple relation between the compensation matrices of the transmitting and the receiving arrays is found. As a consequence, the scattering matrix of a circuit that allows the simultaneous compensation of mutual coupling effects for the transmission and the reception problem can be easily defined. Finally, it will be shown how the capabilities of the compensation in all directions depend strongly on the array element.},
	keywords = {Active element pattern, antenna array, Antenna arrays, Antenna measurements, antenna radiation patterns, finite element analysis, Mutual coupling, mutual coupling compensation, spherical mode expansion, transmitting antennas, Vectors},
	issn = {0018-926X},
	doi = {10.1109/TAP.2014.2382691},
	url = {http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=\&arnumber=6987253},
	author = {Rubio, J and Izquierdo, J F and J C{\'o}rcoles}
}
@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 {15_EIEC_Rubio_OMP,
	title = {Thinned Arrays by using the orthogonal matching pursuit algorithm and spherical-wave field synthesis},
	booktitle = {X Iberian Meeting on Computational Electromagnetism},
	year = {2015},
	month = {May},
	author = {J Rubio and J C{\'o}rcoles and J F Izquierdo and R G{\'o}mez-Alcal{\'a} and J. Zapata}
}
@conference {14_URSIESP_Corcoles_SintesisdeFourier,
	title = {Matriz de compensaci{\'o}n de acoplos mutuos para agrupaciones de antenas en problemas de radiaci{\'o}n},
	booktitle = {Proc. 2014 Simposium Nacional URSI (in Spanish)},
	year = {2014},
	month = {Sep},
	pages = {1-4},
	abstract = {In this work, a general method to obtain a matrix which allows compensating the mutual coupling effects in arrays for the total field in all directions is introduced. This method is independent of the numerical method used in the analysis and it can include the effect of the antenna platform. The starting point can be the active element patterns or spherical near-field antenna measurements. It will be shown how the capabilities of compensation depend strongly on the array element.},
	author = {Rubio, J and Izquierdo, J F and J C{\'o}rcoles}
}
@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}
}
@conference {08_URSIESP_Izquierdo-MartinezRuiz-Cruz_DisenodeOMTs,
	title = {Dise{\~n}o de OMTs (Ortho-Mode Transducers) con la uni{\'o}n Turnstile},
	booktitle = {Proc. 2008 Simposium Nacional URSI (in Spanish)},
	year = {2008},
	month = {Sept.},
	pages = {1-4},
	abstract = {This paper presents the design of an orthomode transducer (OMT) based on the Turnstile junction with two main characteristics: a) the routing branches for each polarization are made in both E- and H-plane configuration, and b) the used Turnstile junction has an optimized internal profile inspired on mitered bends. These branches are made up of well-known waveguide elements, such as E- and H-plane bends and height transformers, which can be efficiently analyzed by specialized codes or available commercial software. The proposed structures are illustrated with the design of a complete OMT. The numerical simulations of the OMT elements and the performance of the overall structure in the band 13-19 GHz are presented in this communication, obtaining return losses better than 24dB in a 37\% fractional bandwidth for both polarizations.},
	url = {http://w3.iec.csic.es/ursi/paginas/index_congresosreali.htm},
	author = {Izquierdo-Martinez, I and J A Ruiz-Cruz}
}
