A Simple Design Method of the Planar Butler Matrix Using Thin Dielectric Substrate Metalized Both Side

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概要

• 論文の詳細を見る

• Adaptive antenna is a promising to increase the spectral efficiency of mobile radio systems. We developed a compact, cost effective planar Butler Matrix as a beam forming network of a multi beam antenna. This circuit consists of a thin substrate that the conductor attaches to both sides, and two thick substrates that the ground conductor attaches to one side. In this circuit, coupling by crossover causes amplitude and phase error of the Butler Matrix. By narrowing the strip width of the crossover, crossover coupling can be suppressed 10 dB. The measurement results of the experimental 8 ×8 Butler Matrix were ±0.75dB amplitude deviation, ±9.5 degree phase deviation and VSWR of less than 1.15 within (he relative bandwidth of 10% at 900 MHz band.

• 社団法人電子情報通信学会の論文
• 2003-02-01

著者

• Ishida Osami

  The Authors Are With Information Technology R&d Center Mitsubishi Electric Corporation

• ISOTA Yoji

  The authors are with Information Technology R&D Center, Mitsubishi Electric Corporation

• TAKEDA Fumio

  The author is with the Department of Electronic Engineering, Okay am a University of Science

• Isota Y

  The Authors Are With Information Technology R&d Center Mitsubishi Electric Corporation

• Takeda F

  The Author Is With The Department Of Electronic Engineering Okay Am A University Of Science

• Isota Yoji

  The Authors Are With Information Technology R&d Center Mitsubishi Electric Corporation

関連論文

• A Simple Design Method of the Planar Butler Matrix Using Thin Dielectric Substrate Metalized Both Side

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