Title :
Parallel plate mode suppressed strip-line fed antenna for CP phased array antenna
Author :
Youngsub Kim ; Young Joong Yoon
Author_Institution :
Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
A parallel plate mode (PPM) suppressed strip-line fed antenna with a via-wall is proposed for circular polarization phased array antenna system. By introducing a metal cavity using a via-wall around antenna, radiation characteristic perturbation and mutual coupling are improved. To verify the PPM suppression effects, conventional antenna, which does not have via-walls, and the proposed antenna are compared in 4×4 array configuration. The reflection coefficient variation is reduced and the mutual coupling is improved about 17 dB. The measured antenna gain is 7.05 dBi, and axial ratio is 1.2 dB at designed frequency 9.5 GHz.
Keywords :
antenna feeds; antenna phased arrays; antenna radiation patterns; electromagnetic wave polarisation; strip line components; CP phased array antenna system; PPM suppressed strip line fed antenna; circular polarization phased array antenna system; metal cavity; mutual coupling; parallel plate mode suppressed strip line fed antenna; radiation characteristic perturbation; reflection coefficient variation reduction; via-wall around antenna; Antenna arrays; Antenna measurements; Antenna radiation patterns; Arrays; Cavity resonators; Reflector antennas; CP phased array; antenna; parallel plate mode; ppm;
Conference_Titel :
Antennas and Propagation (EuCAP), 2015 9th European Conference on
Conference_Location :
Lisbon