@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} }