General Theory of a Circular Dual-Mode Resonator and Filter

• AWAI Ikuo

  the Department of Electrical and Electronic Engineering. Yamaguchi University

抄録

A unified theory for the characteristics of dual modes in a circular resonator is elucidated in simple analytical expressions. First, a circular resonator is considered as a ring transmission line which allows two oppositely traveling waves. The essential quantities that characterize a transmission line, i. e., the propagation constant and characteristic impedance are obtained theoretically and/or experimentally. Secondly, any circular resonator is described by a ring resonator model which can be treated analytically, and the resonant frequencies are obtained when perturbations are added along the periphery of a circular resonator. A two stage BPF is created by adding I/O ports to the perturbed circular resonator. Its center frequency and bandwidth is calculated based on the ring resonator model. The circuit condition for obtaining two attenuation poles at both sides of the passband is given together with the method for their control.

収録刊行物

• IEICE transactions on electronics

  IEICE transactions on electronics 81 (11), 1757-1763, 1998-11-25

  一般社団法人電子情報通信学会

キーワード

• circular resonator
• dual mode
• ring resonator
• attenuation pole
• even and odd modes

詳細情報

• CRID: 1571698602419023872
• NII論文ID: 110003211383
• NII書誌ID: AA10826283
• ISSN: 09168524
• 本文言語コード: en
• データソース種別:
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