Title :
Beam-scanning performance of Ku-band low loss MUSCAT array with open stubs
Author :
Honma, Naoki ; Ida, Masaaki ; Seki, Tomohiro ; Nishikawa, Kenjiro ; Tsunekawa, Koichi
Author_Institution :
NTT Network Innovation Labs., NTT Corp., Kanagawa, Japan
Abstract :
In this paper, we propose a new MUSCAT array configuration that employs open stubs at the ends of a microstrip antenna and reduces the number of varactor diodes. Each unit element group has a microstrip antenna with two varactor diodes and two microstrip antennas with one varactor diode. Compared to the configuration described in Honma et al. (2003), this proposal increases the radiation efficiency. Based on the measured results of the fabricated antenna, the phase shift property of the unit element group and the beam-scanning performance at Ku-band are described and the validity of the loss reduction effect is discussed.
Keywords :
antenna radiation patterns; antenna testing; loss measurement; microstrip antenna arrays; scanning antennas; varactors; Ku-band; MUSCAT array; antenna measurements; beam-scanning performance; loss reduction; microstrip antenna; open stubs; phase shift property; radiation efficiency; varactor diodes; Antenna arrays; Antenna feeds; Diodes; Microstrip antenna arrays; Microstrip antennas; Performance loss; Phase shifters; Phased arrays; Tunable circuits and devices; Varactors;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1552651
