Title :
Analysis and design of slot array antennas on short-circuited radial line
Author :
Perez, M.S. ; Isasa, M.V. ; Vidarte, C.T.
Author_Institution :
ETSI Telecomunicacion, Univ. Politecnica de Madrid, Spain
Abstract :
Antenna arrays fed by a radial line are a very attractive solution for direct broadcast satellite (DBS) receivers. This kind of feeding network allows a high efficiency at the same time as a small size and a low fabrication cost The analysis of a radial line slot antenna ending in a nonsymmetric short circuit has been analysed using an equivalent circuit model for the slot to slot and slot to vertical probe coupling. Good agreement has been observed between the computed and measured far field pattern and gain. The analysis scheme can be used to validate any design method.
Keywords :
antenna feeds; antenna radiation patterns; direct broadcasting by satellite; equivalent circuits; receiving antennas; satellite antennas; slot antenna arrays; DBS; antenna analysis; antenna design; antenna feeders; direct broadcast satellite receivers; equivalent circuit model; far field pattern; gain; nonsymmetric short circuit; radial line slot antenna; short-circuited radial line; slot array antennas; slot coupling; slot-vertical probe coupling; Antenna arrays; Antenna feeds; Circuit analysis; Costs; Equivalent circuits; Fabrication; Receiving antennas; Satellite antennas; Satellite broadcasting; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1996. AP-S. Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-3216-4
DOI :
10.1109/APS.1996.549802
