絕緣介質(zhì)波導(dǎo)的單模帶寬等傳輸特性的分析
ANALYSIS OF SOME PROPAGATION PROPERTIES OF INSULAR DIELECTRIC WAVEGUIDE
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摘要: 本文研究了絕緣介質(zhì)波導(dǎo)兩類模式的本征方程的不同表達(dá)形式對基模Ey11截止特性的影響,指出采用三角函數(shù)的表達(dá)形式可避免導(dǎo)致Ey11模有非零截止這一不恰當(dāng)?shù)慕Y(jié)論,推導(dǎo)了四個低階模存在的條件。在此基礎(chǔ)上用正交選優(yōu)法對絕緣介質(zhì)波導(dǎo)影響傳輸特性的五個參數(shù)進(jìn)行選優(yōu),得到多組單模帶寬較寬,導(dǎo)體損耗和介質(zhì)損耗較小、外場發(fā)散也較小的參數(shù),并與鏡象波導(dǎo)作了對比。
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關(guān)鍵詞:
Abstract: The conditions for four lower modes existing in an insular dielectric waveguide are given. The parameters which affect the propagation properties Of the insular dielectric waveguide are selected optimally by the improved Orthogonal Array Table (OAT). Then a set of parameters for obtaining wider single mode bandwidth, lower conductor and dielectric loss, and small outer field dispersion is given. The single mode bandwidth of insular dielectric waveguide is compared with that of image waveguide, and the difference is not significant. -
R. M. Knox, IEEE Trans. on MTT, MTT-24(1976), 806.[2]中國現(xiàn)場統(tǒng)計研究會《三次設(shè)計》組,可計算性項目的三次設(shè)計,1983年.[3]R. M. Knox, P. P. Toulios, Integrated Circuits for the Millimeter-Optical Frequency Range, Proc, Symp. Submillimeter Wave, S. N. Y. Edited by Jerome Fox, Mar. 1970, pp. 497-516.[4]W. V. Mclevige, T.Itoh and R. Mittra, IEEE Trans. on-MTT, MTT-23(1975), 788.[5]吳萬春,微波毫米波與光集成電路的理論基礎(chǔ),西北電訊工程學(xué)院出版社,1985.[6]史美琪,蔣定華,用于毫米波集成電路的絕緣介質(zhì)波導(dǎo),第三屆全國毫米波,亞毫米波會議論文集,PP.64-67, 1986. 3.[7]史美琪,蔣定華,通信學(xué)報,1985年,第6卷,第2期,第1頁. -
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