Bi-directional coupler based on composite right/left-handed and artificial transmission lines

li yunong; liu changjun

Volume 22 Issue 10

Sep. 2010

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Abstract

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Article Navigation > High Power Laser and Particle Beams > 2010 > 22(10): 0-

liu lifeng, xiao shali, wang hongjian, et al. Application of spherically bent crystals spectrometer to X-ray diagnosis[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

li yunong, liu changjun. Bi-directional coupler based on composite right/left-handed and artificial transmission lines[J]. High Power Laser and Particle Beams, 2010, 22.

liu lifeng, xiao shali, wang hongjian, et al. Application of spherically bent crystals spectrometer to X-ray diagnosis[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

li yunong, liu changjun. Bi-directional coupler based on composite right/left-handed and artificial transmission lines[J]. High Power Laser and Particle Beams, 2010, 22.

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Bi-directional coupler based on composite right/left-handed and artificial transmission lines

1.
School of Electronics and Information Engineering,Sichuan University,Chengdu 610064,China

Publish Date: 2010-09-03

Abstract

Abstract

An artificial transmission line as a right-handed transmission line is edge-coupled with a CRLH-TL to realize coupling between the left-handed and the right-handed transmission line. The directional coupler is a compact planar structure with characteristics of backward and tight coupling. Experimental results show that a 10 dB coupling coefficient is achieved from 1.3 GHz to 1.8 GHz. The corresponding fractional bandwidth is about 32%, and the isolation is greater than 25 dB. Simulation results agree well with measured results. The directional coupler covers a wider coefficient range than the conventional one.
- composite right/left-handed transmission line,
- artificial transmission line,
- directional coupler,
- micro-strip

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