TY - GEN
T1 - Isolation-improved branch-line coupler based on feed-forward technique
AU - Ahn, Byung Jun
AU - Kim, Sang Kyu
AU - Yook, Jong Gwan
PY - 2005
Y1 - 2005
N2 - In this paper, the improved feed-forward technique to enhance the isolation of a Tx/Rx is presented. It is particularly suitable for Tx/Rx antenna applications and also could be implemented in MMICs. It is achieved about -55 dB isolation after applying feed-forward technique to the branch-line coupler. The proposed feed-forward structure is implemented using the branch-line coupler, the coupled line and the Wilkinson combiner, especially consisted of only microstrip lines, without implementation of other devices like phase shifter and attenuator or application of multi-layer, at ISM band of 5.8 GHz.
AB - In this paper, the improved feed-forward technique to enhance the isolation of a Tx/Rx is presented. It is particularly suitable for Tx/Rx antenna applications and also could be implemented in MMICs. It is achieved about -55 dB isolation after applying feed-forward technique to the branch-line coupler. The proposed feed-forward structure is implemented using the branch-line coupler, the coupled line and the Wilkinson combiner, especially consisted of only microstrip lines, without implementation of other devices like phase shifter and attenuator or application of multi-layer, at ISM band of 5.8 GHz.
UR - http://www.scopus.com/inward/record.url?scp=33847167104&partnerID=8YFLogxK
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U2 - 10.1109/APMC.2005.1606300
DO - 10.1109/APMC.2005.1606300
M3 - Conference contribution
AN - SCOPUS:33847167104
SN - 078039433X
SN - 9780780394339
T3 - Asia-Pacific Microwave Conference Proceedings, APMC
BT - APMC 2005
T2 - APMC 2005: Asia-Pacific Microwave Conference 2005
Y2 - 4 December 2005 through 7 December 2005
ER -