Improvements in ultra-broadband TEM coupler design
作者:
C.M.Potter,
G.Hjipieris,
期刊:
IEE Proceedings H (Microwaves, Antennas and Propagation)
(IET Available online 1992)
卷期:
Volume 139,
issue 2
页码: 171-178
年代: 1992
DOI:10.1049/ip-h-2.1992.0032
出版商: IEE
数据来源: IET
摘要:
A procedure which extracts the coupling factor profile from S-parameter measurements of a tapered directional coupler is presented. The difference between implemented and theoretical coupling is used together with knowledge of the cross-sectional dimensions of the coupler to produce a refined coupler design with a more ideal frequency response. Results showing the performance improvements using this technique are presented for a 3 dB quadrature coupler covering 750 MHz–26.5 GHz.
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