Four-Reflector Offset Antennas for Space Communications

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概要

• 論文の詳細を見る

• We design a four-reflector offset antenna satisfying the cross-polarization elimination condition and the broadband characteristics condition which consists of one primary horn, three subreflectors and one main reflector. The cross-polarization elimination condition for the four-reflector offset antennas is expressed by the equations of hyperbolas with the coordinate axes of the reciprocal of equivalent focal lengths. The configurations of the reflector system are derived simply from the graphical representation because four-reflector offset antennas satisfying these relationships exist on the hyperbolas with the coordinate axes of the reciprocal of equivalent focal lengths. Furthermore, we clarified that the derived condition for having planar phase front applying the broadband characteristics condition is independent of frequency. An actual design example for the four-reflector offset antennas satisfying the cross-polarization elimination condition and the condition for having planar phase front, both of which are independent of frequency is shown. The design method using the graphical representation is simpler than that of the tri-reflector offset antennas.

• 社団法人電子情報通信学会の論文
• 2002-07-01

著者

• Kawakami Yoichi

  Ntt Network Innovation Laboratories Ntt Corporation

• Katagi Takashi

  Division Of Electrical Engineering Kanazawa Institute Of Technology

• FURUNO Takayoshi

  Mitsubishi Electric Corporation

• TAKABAYASHI Mikio

  Mitsubishi Electric Corporation

• IKUNO Hiroyoshi

  Department of Electrical and Computer Engineering, Kumamoto University

• Ikuno Hiroyoshi

  Department Of Electrical And Computer Engineering Kumamoto University

関連論文

• Four-Reflector Offset Antennas for Space Communications
• Numerical analysis of travel time surfaces of electromagnetic wave scattered from convex-concave surfaces
• Joint Between a Photonic Crystal Optical Waveguide and a Dielectric Optical Waveguide

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