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2009-04-09
A Cancellation Network for Full-Duplex Front End Circuit
By
Progress In Electromagnetics Research Letters, Vol. 7, 139-148, 2009
Abstract
A circulator is needed in a C-band airborne synthetic aperture radar system which employs single antenna configuration. The circulator provides full-duplex capability to transmit high-power RF signal and receive the echo signal via the same antenna simultaneously. Commercially available circulators with moderate isolation are inadequate for this application. An innovative Cancellation Network (CN) has been designed to enhance the performance of the conventional circulator. This paper highlights the conceptual design and measurement results of the CN. An improvement of more than 27 dB has been achieved.
Citation
Yee Kit Chan Voon Koo Boon-Kuan Chung Hean-Teik Chuah , "A Cancellation Network for Full-Duplex Front End Circuit," Progress In Electromagnetics Research Letters, Vol. 7, 139-148, 2009.
doi:10.2528/PIERL09022305
http://www.jpier.org/PIERL/pier.php?paper=09022305
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