High power helical array antenna fed from single-layered radial waveguide

li xiang-qiang; liu qing-xiang; zhao liu

Volume 17 Issue 11

Nov. 2005

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Article Navigation > High Power Laser and Particle Beams > 2005 > 17(11): 0-

chen ming, yang cun-bang, ding yong-kun, et al. Data acquisition system based on VXI for ICF[J]. High Power Laser and Particle Beams, 2006, 18.

Citation:

li xiang-qiang, liu qing-xiang, zhao liu. High power helical array antenna fed from single-layered radial waveguide[J]. High Power Laser and Particle Beams, 2005, 17.

chen ming, yang cun-bang, ding yong-kun, et al. Data acquisition system based on VXI for ICF[J]. High Power Laser and Particle Beams, 2006, 18.

Citation:

li xiang-qiang, liu qing-xiang, zhao liu. High power helical array antenna fed from single-layered radial waveguide[J]. High Power Laser and Particle Beams, 2005, 17.

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High power helical array antenna fed from single-layered radial waveguide

1.
College of Science,Southwest Jiaotong University,Chengdu 610031,China

Publish Date: 2005-11-25

Abstract

Abstract

Helical array antenna is fed from a single-layered radial waveguide to realize the directional radiation of high-power microwave. Low-profile helix is used as a radiation element. The feed wire of each helix is connected with an H-coupled probe, and excited by an outgoing wave in the TEM mode between the two parallel plates of the radial waveguide. Helices and probes are arranged on the upper plate to form a circular array. The excitation amplitude and phase of each element are adjusted by changing the insert length of H-coupled probe and rotating low-profile helix respectively. This antenna accepts directly an azimuthally symmetric output of an HPM source and radiates a high-gain pattern with a boresight peak. H-coupled probes are used to make the array antenna compatible with the intense
- helical array antenna,
- radial waveguide,
- h-couple probe,
- radiation characteristics

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