@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}
}
@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}
}
