Summary
International Symposium on Antennas and Propagation
2006
Session Number:1B1
Session:
Number:1B1-1
Experimental Verification of Multipactor Breakdown for Space RF Hardware
Seung-woon Choi, Day-young Kim, Jong-in Lee, Hak-jung Kim, Pil-yong Lee,
pp.1-4
Publication Date:2006/11/2
Online ISSN:2188-5079
Summary:
An experimental verification of multipactor(MP) breakdown for S-band duplexer as a sample DUT for space application by an in-house MP test facility is proposed. The designed duplexer having two BPFs for Rx and Tx is applied to a design of five pole inter-digital cavity type band pass filter with chebyshev response, it has 2.7 % bandwidth centred at 2.232 and 2.055 GHz for Rx, Tx, respectively. To avoid the MP breakdown, the accurate design and analysis methods based on 3D EM field analysis are considered. The proposed in-house MP test facility consists of a phase detecting system using a doubly balanced mixer in addition to a phase nulling system, RF power measurement, electron current detector and so forth. The calculated MP threshold RF input power is 43.13 dBm. The measured MP breakdown power is 43 dBm and 44 dBm for CW mode and pulsed mode test, respectively. The designed S-band duplexer for MP breakdown is worthily verified by the in-house developed MP test facility.