用譜域?qū)Э狗ㄓ嬎汨F氧體加載鰭線的傳輸特性
A SPECTRAL-DOMAIN IMMITTANCE APPROACH FOR PROPAGATION CHARACTERISTICS OF FINLINE LOADED WITH FERRITE MEDIUM
-
摘要: 本文從Maxwell方程出發(fā),經(jīng)過Fourier變換和坐標旋轉(zhuǎn),將鐵氧體中的非尋常波分解成TE和TM波,并給出它們的波導(dǎo)納。利用邊界條件,忽略TE和TM波間耦合的影響后,將鰭線用一等效網(wǎng)絡(luò)表示。本文方法與T.Itoh提出的譜域?qū)Э狗ū容^,在等效網(wǎng)絡(luò)中引入了理想變壓器元件。最后對鐵氧體加載單側(cè)鰭線的正反向傳播常數(shù)進行了數(shù)值計算,其結(jié)果與有關(guān)文獻中數(shù)據(jù)吻合得很好。
-
關(guān)鍵詞:
- 電波傳播; 鐵氧體; 鰭線; 譜域異抗法
Abstract: The extraordinary waves of the ferrite medium are decomposed into TE and TM modes, through the Fourier transformation and a coordinate rotaion of Maxwell s equations. The wave admittances of TE and TM modes is neglected, the finline with magnetized fer-used and the coupling between TE and TM modes is neglected, the finline with magnetized fexrite substrate can equally he represented by a network. Comparing this approach with T. Itch s spectral domain immittance approach, the ideal transformers are used in the network. Finally, the forward and backward propagation constants for the unilateral finline loaded with magnetized ferrite have been calculated numerically. Numerical results agree weit with that given by Geshiro and Itoh.(1987). -
A. Beyer, I, Wolff, Finline Circulator and Isolator on the R-Band, presented at 11th Eur. Microwave Conf., Amsterdem, (1981), pp.321-326.[2]G. Bock, Electron. Lett., 18(1982)12, 536-537.[3]Y. Hayashi, R. Mittra, IEEE Trans. on MTT,MTT-31(1983)6, 495-498.[4]M. Geshiro, T. Itoh, IEEE Trans. on MTT, MTT-35(1937)12, 1372-1381.[5]T. Itoh, IEEE Trans, on MTT, MTT-20(1980)7, 733-736.[6]C. R. Wylie, Advance Engineering Mathematics, McGraw-Hill Book Co., New York, (1975), Chaps. 10 and 11.[7]高保薪等編, 微波電路計算機輔助設(shè)計, 上冊, 清華大學(xué)出版社, 北京, 1984年, 第31-39頁. -
計量
- 文章訪問數(shù): 2250
- HTML全文瀏覽量: 110
- PDF下載量: 486
- 被引次數(shù): 0
下載:
