Title :
Multi-ring element FSS for multi-band applications
Author :
Wu, T.K. ; Woo, K. ; Lee, S.W.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
NASA´s CRAF/Cassini (C/C) project requires the use of multiple RF frequencies at S, X, Ku, and Ka bands for science investigations and data communications links. A single high-gain antenna (HGA) will be used. It incorporates a frequency-selective subreflector (FSS) to allow a Cassegrain configuration at X (7.2 and 8.4 GHz) and Ka (32 and 34.5 GHz) bands, and a prime focus configuration at S (2.3 GHz) and Ku (13.8 GHz) bands. A four-based FSS design for the C/C application is reported. The selection of the concentric ring elements is based on the fact that the ring´s geometry is particularly conformable to the present circular polarization requirement and ease of manufacture.<>
Keywords :
antenna accessories; antenna theory; microwave antennas; reflector antennas; 13.8 GHz; 2.3 GHz; 32 GHz; 34.5 GHz; 7.2 GHz; 8.4 GHz; Cassegrain configuration; EHF; Ka band; Ku-band; NASA CRAF/Cassini project; S-band; SHF; UHF; X-band; concentric ring elements; four-based FSS design; frequency selective surface; frequency-selective subreflector; high-gain antenna; multiband applications; multiple RF frequencies; multiring FSS; prime focus configuration; Coaxial components; Data communication; Dielectrics; Frequency selective surfaces; Laboratories; Modal analysis; Propulsion; Radio frequency; Resonant frequency; Transmission line matrix methods;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221506
