H11O多模圓彎曲波導(dǎo)傳輸特性
TRANSMISSION CHARACTERISTICS OF H11O MULTIMODE CIRCULAR BENDING WAVEGUIDE
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摘要: 近年來,N.Nakajima等對(duì)4、5、6GHz共用天線波導(dǎo)系統(tǒng)中一種高性能偏置激勵(lì)的卡塞格倫微波天線所用多模圓彎曲波導(dǎo)的傳輸特性及其高次波型E01O的影響進(jìn)行了分析和實(shí)驗(yàn)研究,而文中對(duì)彎波導(dǎo)所激發(fā)的另一重要高次波型H21O的影響和有效地處理方法并未解決。本文根據(jù)任意截面彎曲波導(dǎo)耦合波方程組分析并計(jì)算了H11O多模圓彎曲波導(dǎo)內(nèi)高次波型耦合特性及其前兩個(gè)最重要的較低階高次波E01O、H21O的耦合系數(shù)和波型激發(fā)量,提出了一種寬頻帶H21O、E01O波型濾波器,實(shí)驗(yàn)表明波型濾波器的實(shí)用效果良好,從而使N.Nakajima等遇到的并待克服的問題可基本解決。
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關(guān)鍵詞:
Abstract: Higher order modes coupling characteristics in H11O, circular bending waveguide are analyzed according to the coupled wave equations, and coupling coeffecients of E01O, H21O, modes and their amplitudes are computed. A broad-band H21O, E01O mode filter has been presented. Experimental results indicated that its practical application is quite satis-factory. Thus, the problems presented by N. Nakajima, etc. can be solved. -
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