Title :
Slot-coupled self-diplexing array antenna for mobile satellite communications
Author :
Murakami, Y. ; Chiba, I. ; Karasawa, Y.
Author_Institution :
ATR Opt. & Radio Commun. Res. Labs., Kyoto, Japan
fDate :
4/1/1996 12:00:00 AM
Abstract :
An experimental investigation of a novel two-layered slot-coupled self-diplexing antenna for mobile satellite communications is presented. A transmitting circular patch antenna is stacked on a receiving ring patch antenna. A modified symmetrical cross-slot is used to feed the circular patch antenna. Orthogonal two-point and four-point feeding methods for the ring patch antenna are compared. Characteristics of an isolated antenna element and a 16-element phased array antenna are presented. For the 16-element array, isolation between the transmitting and receiving ports was greater than 20 dB for a scanning angle of ±60
Keywords :
antenna feeds; antenna phased arrays; antenna radiation patterns; microstrip antenna arrays; mobile antennas; mobile satellite communication; receiving antennas; transmitting antennas; 16-element phased array antenna; L-band; isolated antenna element; isolation; mobile satellite communications; orthogonal four-point feeding method; orthogonal two-point feeding method; radiation pattern; receiving ring patch antenna; slot-coupled self-diplexing array antenna; symmetrical cross-slot; transmitting circular patch antenna; two-layered structure;
Journal_Title :
Microwaves, Antennas and Propagation, IEE Proceedings
DOI :
10.1049/ip-map:19960231
