Please use this identifier to cite or link to this item: https://doi.org/10.1109/TMTT.2010.2090695
Title: Microstrip branch-line couplers for crossover application
Authors: Yao, J.
Lee, C.
Yeo, S.P. 
Keywords: Microstrip components
Issue Date: Jan-2011
Source: Yao, J., Lee, C., Yeo, S.P. (2011-01). Microstrip branch-line couplers for crossover application. IEEE Transactions on Microwave Theory and Techniques 59 (1) : 87-92. ScholarBank@NUS Repository. https://doi.org/10.1109/TMTT.2010.2090695
Abstract: The branch-line coupler may be redesigned for crossover application. The bandwidth of such a coupler can be extended by suitably incorporating additional sections into the composite design. Laboratory tests on microstrip prototypes have shown the return loss and isolation of the three- and four-section couplers to be better than 20 dB over bandwidths of 22% and 33%, respectively. The insertion losses and group delays vary by less than ±dB and ±1, respectively, for both prototypes. © 2010 IEEE.
Source Title: IEEE Transactions on Microwave Theory and Techniques
URI: http://scholarbank.nus.edu.sg/handle/10635/56628
ISSN: 00189480
DOI: 10.1109/TMTT.2010.2090695
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