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Wideband monopulse tracking feed

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1 Author(s)
Choung, Y.H. ; Space & Technol. Group, TRW Inc., Redondo Beach, CA, USA

This paper presents a compact monopulse tracking feed using a single corrugated horn and a TM/sub 01/ mode tracking coupler for wideband operation. The demo feed system is such that the communication channel operates from 12 to 30 GHz and the tracking channel operates from 24 to 28 GHz. The feed was designed to have a 10 dB beamwidth of 30 /spl deg/ to achieve the maximum efficiency for a Cassegrain antenna. The coupler is designed by a longitudinal traveling wave mechanism and utilizes the circular TE/sub 11/ and TM/sub 01/ modes that provide the sum and the difference channels, respectively, to achieve monopulse tracking.

Published in:

Antennas and Propagation Society International Symposium, 1998. IEEE  (Volume:4 )

Date of Conference:

21-26 June 1998