Full Text:
<3989>
CLC number: O441
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 0000-00-00
Cited: 4
Clicked: 6491
A tunable dual-broad-band branch-line coupler utilizing composite right/left-handed transmission lines
| |||||||||||||
ZHANG Yu, HU Li, HE Sai-ling. A tunable dual-broad-band branch-line coupler utilizing composite right/left-handed transmission lines[J]. Journal of Zhejiang University Science A, 2005, 6(6): 483-486.
@article{title="A tunable dual-broad-band branch-line coupler utilizing composite right/left-handed transmission lines",
author="ZHANG Yu, HU Li, HE Sai-ling",
journal="Journal of Zhejiang University Science A",
volume="6",
number="6",
pages="483-486",
year="2005",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2005.A0483"
}
%0 Journal Article
%T A tunable dual-broad-band branch-line coupler utilizing composite right/left-handed transmission lines
%A ZHANG Yu
%A HU Li
%A HE Sai-ling
%J Journal of Zhejiang University SCIENCE A
%V 6
%N 6
%P 483-486
%@ 1673-565X
%D 2005
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2005.A0483
TY - JOUR
T1 - A tunable dual-broad-band branch-line coupler utilizing composite right/left-handed transmission lines
A1 - ZHANG Yu
A1 - HU Li
A1 - HE Sai-ling
J0 - Journal of Zhejiang University Science A
VL - 6
IS - 6
SP - 483
EP - 486
%@ 1673-565X
Y1 - 2005
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2005.A0483
Abstract: A tunable dual-broad-band branch-line coupler (BLC) utilizing left-handed (CRLH)%29&ck%5B%5D=abstract&ck%5B%5D=keyword'>composite right/left-handed (CRLH) transmission lines is presented. Two λ/4 segments consisting of CRLH transmission lines are added to each port to broaden the dual bands of the branch-line coupler. Numerical simulation and optimal design of the novel coupler are presented. The dual bands of the novel coupler are tunable and broad. The 1-dB bandwidth of each pass band is more than 16% of the central frequency.
[1] Ashforth, J.V., 1988. Design equations to realize a broadband hybrid ring or a two-branch guide coupler of any coupling coefficient. Electron. Lett., 24(20):1276-1277.
[2] Collin, R.E., 1966. Foundations of Microwave Engineering. McGraw-Hill.
[3] Islam, R., Eleftheriades, G.V., 2003. A planar metamaterial co-directional coupler that couples power backward. IEEE MTT-S Dig., 1:321-324.
[4] Iyer, A.K., Eleftheriades, G.V., 2002. Negative refractive index metamaterials supporting 2-D waves. IEEE MIT-S Dig., 2:1067-1070.
[5] Lin, I., DeVincentis, M., Caloz, C., Itoh, T., 2004. Arbitrary dual-band components using composite right/left-handed transmission lines. IEEE Trans. Microwave Theory Tech., 52:1142-1149.
[6] Liu, L., Caloz, C., Itoh, T., 2000. Dominant mode (DM) leaky-wave antenna with backfire-to-endfire scanning capability. Electron. Lett., 38(23):1414-1416.
[7] Shelby, R., Smith, D., Schultz, S., 2001. Experimental verification of a negative index of refraction. Science, 292:77-79.
[8] Veselago, V.G., 1968. The electrodynamics of substances with simultaneously negative values of ε and μ. Soviet Phys. Usp., 10(4):509-514.
Open peer comments: Debate/Discuss/Question/Opinion
<1>
zhxh@nwpu<zhxhwinnie@163.com>
2010-11-19 19:45:18
maybe it is a good design.