有耗介質(zhì)覆蓋平面導(dǎo)體表面波傳播特性的計(jì)算
PROPAGATION PROPERTY OF THE SURFACE WAVE ON CONDUCTOR-BACKED LOSSY DIELECTRIC PLANE
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摘要: 本文推導(dǎo)了圓柱坐標(biāo)系下有耗介質(zhì)涂覆平面導(dǎo)體表面波的場(chǎng)函數(shù)和本征方程、每波長(zhǎng)徑向衰減常數(shù);分析了介質(zhì)特性參數(shù)、介質(zhì)層厚度與的關(guān)系;指出磁損耗介質(zhì)比電損耗介質(zhì)有更好的抑制表面波的效果。
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關(guān)鍵詞:
- 有耗介質(zhì); 表面波; 徑向衰減常數(shù)
Abstract: The eignvalue equation, the attenuation constant a and the field distribution function of the surface wave(SW) in a conductor-backed lossy dielectric layer are derived. The relationship between the a and the parameters of the dielectric material is described. It was found that the magnetic-loss material showed better performance than the electric-loss material in attenuating the SW. -
Barlow M, Cullen A L. Proc. IEE, part Ⅲ, 1953, 100: 321.[2]饒克謹(jǐn),等.吸收表面波的薄涂層材料的性質(zhì).吸收劑評(píng)價(jià)方法專題研討會(huì),北京,1991.[3]Collin R E著,侯元慶澤.導(dǎo)波場(chǎng)論.上?？茖W(xué)技術(shù)出版社,1966年,446-450.[4]時(shí)振棟,等.有耗介質(zhì)涂覆導(dǎo)體平面上的表而波分析.1991年全國(guó)微波會(huì)議論文集,西安,1991,244-248.[5]克拉特 F,等著,阮穎錚,等譯.雷達(dá)散射截面.北京:電子工業(yè)出版社,1988,263. -
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