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CLC number: O441; TN73

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Received: 2007-01-09

Revision Accepted: 2007-02-07

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Journal of Zhejiang University SCIENCE A 2007 Vol.8 No.10 P.1568~1572

http://doi.org/10.1631/jzus.2007.A1568


A new broadband differential phase shifter fabricated using a novel CRLH structure


Author(s):  ZOU Yong-zhuo, LIN Zhi-li, LING Ti, YAO Jun, HE Sailing

Affiliation(s):  State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China; more

Corresponding email(s):   meta973@zju.edu.cn, sailing@kth.se

Key Words:  Broadband, Differential phase shifter, Composite right/left-handed (CRLH) metamaterial structure, Quasi-lumped elements


ZOU Yong-zhuo, LIN Zhi-li, LING Ti, YAO Jun, HE Sailing. A new broadband differential phase shifter fabricated using a novel CRLH structure[J]. Journal of Zhejiang University Science A, 2007, 8(10): 1568~1572.

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author="ZOU Yong-zhuo, LIN Zhi-li, LING Ti, YAO Jun, HE Sailing",
journal="Journal of Zhejiang University Science A",
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number="10",
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publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2007.A1568"
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%T A new broadband differential phase shifter fabricated using a novel CRLH structure
%A ZOU Yong-zhuo
%A LIN Zhi-li
%A LING Ti
%A YAO Jun
%A HE Sailing
%J Journal of Zhejiang University SCIENCE A
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%N 10
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%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2007.A1568

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T1 - A new broadband differential phase shifter fabricated using a novel CRLH structure
A1 - ZOU Yong-zhuo
A1 - LIN Zhi-li
A1 - LING Ti
A1 - YAO Jun
A1 - HE Sailing
J0 - Journal of Zhejiang University Science A
VL - 8
IS - 10
SP - 1568
EP - 1572
%@ 1673-565X
Y1 - 2007
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2007.A1568


Abstract: 
broadband phase shifters are mostly proposed and fabricated based on the scheme proposed by Shiffman, which uses a coupled line with far ends connected together and a uniform transmission line to give a differential phase shift. Based on the unique dispersion property of the composite right/left-handed (CRLH) metamaterial structure, a new configuration is presented in this paper for fabricating the broadband differential phase shifter, which employs a novel CRLH metamaterial structure as one of the differential phase-shift arms, instead of the conventional coupled line. The new circuit can achieve a phase shift of 90° in an operational bandwidth as broad as one octave and its phase deviations are quite small. An original design of the novel broadband phase shifter is presented, in which the artificial CRLH structure was implemented by microstrip quasi-lumped elements. Both the simulated and measured results of the 90° broadband differential phase shifter are presented.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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[4] Casares-Miranda, F.P., Camacho-Peñalosa, C., Caloz, C., 2006. High-gain active composite right/left-handed leaky-wave antenna. IEEE Trans. on Antennas and Propagation, 54(8):2292-2299.

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[8] Kholodnyak, D., Serebryakova, E., Vendik, I., Vendik, O., 2006. Broadband digital phase shifter based on switchable right- and left-handed transmission line sections. IEEE Microwave and Wireless Components Letters, 16(5):258-260.

[9] Ramos Quirarte, J.L., Starski, J.P., 1991. Synthesis of Schiffman phase shifters. IEEE Trans. on Microwave Theory and Techniques, 39(11):1885-1889.

[10] Ramos Quirarte, J.L., Starski, J.P., 1993. Novel Schiffman phase shifters. IEEE Trans. on Microwave Theory and Techniques, 41(1):9-14.

[11] Schiffman, B.M., 1958. A new class of broad-band microwave 90-degree phase shifters. IEEE Trans. on Microwave Theory and Techniques, 6(2):232-237.

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