Miniature L-band coaxial-to-CPW directional coupler

Cui Xinhong; Meng Lin; Liu Xiaolong; Wu Xiaolong; Ye Hu

doi:10.3788/HPLPB20132510.2659

Volume 25 Issue 10

Sep. 2013

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(10): 2659-2662

Zhu Sitao, Yi Chaolong, Chen Changhua, et al. Radiation mechanism analysis and optimized design of TEM horn antennas[J]. High Power Laser and Particle Beams, 2013, 25: 2368-2372. doi: 10.3788/HPLPB20132509.2368

Citation:

Cui Xinhong, Meng Lin, Liu Xiaolong, et al. Miniature L-band coaxial-to-CPW directional coupler[J]. High Power Laser and Particle Beams, 2013, 25: 2659-2662. doi: 10.3788/HPLPB20132510.2659

Citation:

Cui Xinhong, Meng Lin, Liu Xiaolong, et al. Miniature L-band coaxial-to-CPW directional coupler[J]. High Power Laser and Particle Beams, 2013, 25: 2659-2662. doi: 10.3788/HPLPB20132510.2659

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Miniature L-band coaxial-to-CPW directional coupler

doi: 10.3788/HPLPB20132510.2659

1.
School of Physical Electronics,University of Electronic Science and Technology of China,Chengdu 610054,China;
2.
Northwest Institute of Nuclear Technology,P.O.Box 69-13,Xi’an 710024,China

Received Date: 2012-12-11
Rev Recd Date: 2013-01-31
Publish Date: 2013-09-22

Abstract

Abstract

A novel coaxial directional coupler was designed for L-band high power microwave radiation field measurement. It could incredibly decrease the size of the coupler to use two different kinds of transmission lines and coupling aperture with continuous variation width along the propagation direction. The aperture is determined by infinitesimal method, small hole coupling formulas and numerical full wave simulation optimization. Based on the simulation results, the structure of the coupler is optimized and fabricated, and the measurement results indicate that, the size of the directional coupler is 150 mm46 mm55 mm, and during 1-2 GHz, the coupling is 47 dB, the directivity is more than 17 dB.
- high power microwave,
- coaxial directional coupler,
- coplanar waveguide,
- diamond aperture,
- L-band

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