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2016-11-10
A Wideband Waveguide Diplexer for the Extend C-Band Antenna Systems
By
Progress In Electromagnetics Research C, Vol. 69, 73-82, 2016
Abstract
A wideband diplexer for the extended C-band feed antenna system is proposed in this paper. The diplexer operates in the receiving band (Rx) 3.625-4.8 GHz and transmitting band (Tx) 5.85-7.025 GHz, which give 28% and 19% bandwidths at Rx and Tx bands, respectively. In order to cover such a broadband, a side coupling T-shaped junction and a corrugated low-pass filter scheme are adopted. The T-shaped junction and the filter are designed separately, and then combined for optimization. A prototype is fabricated and measured. Measured results show a good agreement with the calculated ones. The return loss is less than -21 dB, transmission loss less than 0.21 dB, Rx/Tx isolation better than 45 dB, and Tx/Rx isolation better than 70 dB.
Citation
Jin Wang Biao Du Yang Wu Yingran He , "A Wideband Waveguide Diplexer for the Extend C-Band Antenna Systems," Progress In Electromagnetics Research C, Vol. 69, 73-82, 2016.
doi:10.2528/PIERC16083104
http://www.jpier.org/PIERC/pier.php?paper=16083104
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