Phase-agile branch-line couplers using metamaterial lines

by: R Islam, GV Eleftheriades

Microwave and Wireless Components Letters, IEEE, Vol. 14, No. 7. (2004), pp. 340-342.

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Abstract

Two branch-line couplers are introduced that utilize a combination of regular microstrip (MS) and negative-refractive-index (NRI) lines. Interesting phase compensation (0/spl deg/ phase shift) at the output port and a choice of /spl plusmn/90/spl deg/ phase shift at the through port, with respect to the input, are possible. On the other hand, one of the dimensions of the coupler is significantly reduced, compared to a corresponding conventional branch-line coupler, but without any bandwidth degradation.

@article{citeulike:1942337, abstract = {Two branch-line couplers are introduced that utilize a combination of regular microstrip (MS) and negative-refractive-index (NRI) lines. Interesting phase compensation (0/spl deg/ phase shift) at the output port and a choice of /spl plusmn/90/spl deg/ phase shift at the through port, with respect to the input, are possible. On the other hand, one of the dimensions of the coupler is significantly reduced, compared to a corresponding conventional branch-line coupler, but without any bandwidth degradation.}, author = {Islam, R. and Eleftheriades, G. V. }, booktitle = {Microwave and Wireless Components Letters, IEEE}, citeulike-article-id = {1942337}, doi = {10.1109/LMWC.2004.829277}, journal = {Microwave and Wireless Components Letters, IEEE}, keywords = {branch-line, coupler, metamaterial}, number = {7}, pages = {340--342}, posted-at = {2007-11-20 08:40:41}, priority = {2}, title = {Phase-agile branch-line couplers using metamaterial lines}, url = {http://dx.doi.org/10.1109/LMWC.2004.829277}, volume = {14}, year = {2004} }

RIS record

TY - JOUR ID - citeulike:1942337 L3 - citeulike-article-id:1942337 TI - Phase-agile branch-line couplers using metamaterial lines T2 - Microwave and Wireless Components Letters, IEEE JF - Microwave and Wireless Components Letters, IEEE VL - 14 IS - 7 SP - 340 EP - 342 N2 - Two branch-line couplers are introduced that utilize a combination of regular microstrip (MS) and negative-refractive-index (NRI) lines. Interesting phase compensation (0/spl deg/ phase shift) at the output port and a choice of /spl plusmn/90/spl deg/ phase shift at the through port, with respect to the input, are possible. On the other hand, one of the dimensions of the coupler is significantly reduced, compared to a corresponding conventional branch-line coupler, but without any bandwidth degradation. KW - branch-line KW - coupler KW - metamaterial AU - Islam, R AU - Eleftheriades, GV PY - 2004/// UR - http://dx.doi.org/10.1109/LMWC.2004.829277 ER -

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