@conference {17_EUCAP_EDUARDOGARCIA_4x4_stackedPatch_eucap, title = {Implementation of 4 {\texttimes} 4 stacked patch array with corporate feeding network for Ku-band applications}, booktitle = {Antennas and Propagation (EUCAP), 2017 11th European Conference on}, year = {2017}, month = {March}, pages = {1967-1971}, abstract = {In this work, the experimental implementation of a 4 x 4 stacked-patch array with linear polarization and a corporate feeding network for Ku-band is exposed. The feeding network is split into two levels, with an initial power distribution in Substrate Integrated Waveguide and a second distribution in microstrip technology. The experimental results show a matching coefficient better than -10 dB in a 15.9\% bandwidth. In addition, the measured gain attains 16.8 dBi, 0.8 dB below the simulated gain, while radiation efficiency is 66 \%. The structure is validated for higher-gain arrays, and hence designs of 8 x 8 and 16 x 16 radiating elements are also proposed and the simulated results presented. Therefore, antennas with several gain values are available in order to suit the different elements of the communication system, such as the end user and the base station.}, keywords = {antenna, array, corporate feeding, linear polarization, microstrip, replication., SIW, stacked patch}, doi = {10.23919/EuCAP.2017.7928530}, url = {http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=\&arnumber=7928530}, author = {E Garcia-Marin and J L Masa-Campos and P Sanchez-Olivares} } @conference {16_EUCAP_EDUARDOGARCIA_patcharray4x4, title = {4 {\texttimes} 4 stacked patch array with siw and microstrip corporate feeding network for ku-band}, booktitle = {Antennas and Propagation (EUCAP), 2016 10th European Conference on}, year = {2016}, month = {April}, pages = {1-4}, abstract = {A 4 {\texttimes} 4 linearly-polarized stacked-patch array with a fully corporate feeding network for Ku-band is presented in its work. Antenna replication in larger arrays is straightforward with this corporate approach, which in addition prevents unintended main beam steering. The feeding structure is divided in two levels, where the first power distribution is made in Substrate Integrated Waveguide and the second in microstrip technology. This procedure takes advantage of the strengths of each technology, combining waveguide low losses with microstrip versatility. A 18.4-dBi gain is attained in simulation with matching better than -14 dB in the entire bandwidth.}, keywords = {antenna, array, corporate feeding, linear polarization, microstrip, replication, SIW, stacked patch}, author = {E Garcia-Marin and J L Masa-Campos and P Sanchez-Olivares} } @conference {15_EUCAP_EDUARDOGARCIA_patcharray2x2, title = {2 {\texttimes} 2 stacked patch array with corporate SIW feeding network}, booktitle = {Antennas and Propagation (EUCAP), 2015 9th European Conference on}, year = {2015}, month = {April}, pages = {1-4}, abstract = {A linearly polarized 2x2 patch array fed by a corporate Substrate Integrated Waveguide network for Ku band is presented. The utilization of a corporate topology in the feeding network prevents the antenna from suffering an unintended main lobe tilt dispersion. Nevertheless, the interelement spacing increases, and so does the Side-Lobe Level. Reducing this spacing implies closer discontinuities, such as bends and T-junctions. This degrades the reflection coefficient. Hence, a tradeoff solution has been designed and manufactured, achieving a Side-Lobe Level better than -11 dB and a measured bandwidth similar to the expected in the simulation stage, being 4.1 \% at -10 dB. The measured gain reaches 13.27 dB, which corresponds to an 86\% radiation efficiency.}, keywords = {antenna, array, corporate feed, linear polarization., SIW, stacked patch}, author = {E Garcia-Marin and J L Masa-Campos and P Sanchez-Olivares} } @conference {15_APCASE_RAULHARO_divradial, title = {Development of Radial Waveguide Dividers with Large Number of Ports}, booktitle = {Computer Aided System Engineering (APCASE), 2015 Asia-Pacific Conference on}, year = {2015}, month = {July}, pages = {58-62}, abstract = {Power division/combination is a very important function for achieving high-performance power amplification in microwave and millimeter-wave systems, allowing the use of simpler individual amplifiers to provide microwave/millimeter wave high power signals. In this paper we address the development of divider/combiners in waveguide technology for large number of ports. Radial waveguide dividers will be studied, starting from the S-parameters representing the N-port waveguide junction, and ending with the full-wave simulations. Two different designs in this technology are studied. The experimental evaluation will come from a prototype at Ku-band, fabricated and tested in order to validate the design.}, keywords = {antenna, array, corporate feed, linear polarization., SIW, stacked patch}, author = {R V Haro-Baez and J L Masa-Campos and J A Ruiz-Cruz and P Sanchez-Olivares and E V Carrera} }