带有寄生螺旋线的变升角轴向模螺旋天线

Journal of Applied Sciences

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Axial Mode Helical Antenna with Variable Pitch Angle and Parasitic Helix Wire

YANG Fang 1；2, ZHANG Kai 1, CHEN Chen 1, GUO Chenjiang 1, XU Jia-dong 1

1. School of Electronics and information, Northwestern Polytechnical University, Xi'an 710072, China; 2. School of Information and Control Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

Received:2008-06-27 Revised:2008-09-08 Online:2008-12-10 Published:2008-12-10
Contact: YANG Fang

Abstract

Abstract: A helical antenna with a variable pitch angle and a parasitic helix wire is designed to improve radiation performance of helical antennas. Its radiation properties including radiation patterns, power gain and axial ratio are simulated using the software FEKO. The results show that power gain can be improved. It is circularly polarized in a wide bandwidth. The method is simple and efficient for improving radiation performance of axial mode helical antennas.

Key words: parasitic helix wire, variable pitch angle, helical antenna

CLC Number:

TN82

YANG Fang;ZHANG Kai;CHEN Chen;GUO Chenjiang;XU Jia-dong . Axial Mode Helical Antenna with Variable Pitch Angle and Parasitic Helix Wire[J]. Journal of Applied Sciences.

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Axial Mode Helical Antenna with Variable Pitch Angle and Parasitic Helix Wire

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