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研究生:黃紹家
研究生(外文):Shao-Jia huang
論文名稱:微波C型耦合濾波電路探討
論文名稱(外文):A Research on Microwave C-section Coupled Line
指導教授:曾振東曾振東引用關係
指導教授(外文):Jan-Dong Tseng
學位類別:碩士
校院名稱:國立勤益科技大學
系所名稱:資訊與電能科技研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2007
畢業學年度:95
語文別:中文
論文頁數:86
中文關鍵詞:濾波器C型耦合線
外文關鍵詞:filterC-section coupled line
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在微波電路中,以微帶線為基本的傳輸線結構,由於微帶型傳輸線具結構簡單、製造成本低廉、適用於印刷電路優越特性,因此本論文即採用C型耦合微帶線設計低通濾波器。
根據C型耦合微帶線的結構,利用阻抗矩陣及邊界條件得知C型耦合微帶線的輸入阻抗,並根據輸入阻抗推導出C型耦合微帶線的等效電路模型。將C型耦合微帶線等效電路與濾波器原型電路互相匹配,設計出C型耦合微帶線濾波器,並利用模擬軟體(IE3D)模擬其頻率響應。
在電路實作的部份,使用RO4003C雙面電路板,以C型耦合微帶線的架構實際製作出C型耦合微帶線平面濾波器,並測量其頻率響應。在考慮實驗的誤差後,所得到的模擬結果與電路量測結果非常接,由此可以證明本論文中所推出之C型耦合線等效電路及C型耦合線濾波器設計方法與流程的正確性。
Considering the RF circuit technologies, microstrip line is the basic and popular transmission line because of its simple architecture, cost effective, and easy to apply by commerical in the print circuit board production process. Therefore, we chose the microstrip line to design the low pass filter and the thesis is written for improving the filter characteristic.

According to the structure of C-section coupled line, the input impedance of the C-section coupled line in obtained with the advantage of impedance matrix and boundary conditions. The input impedance enables us to establish an equivalent curcuit model of C-section coupled line. Making the equivalent citcuits and filter protypes matched, C-section coupled line filters could be designed, and simulated each filter with IE3D program for their frequency response.

As concerns about the experiments, a microstrip C-section filter with coupled lines is made on a RO4003C double-sided circuit board. The frequency response of the filter is measured. Regardless of the possible experimental errors, the measurement approximately has the same result as the simulation. This experiment provided the equivalent circuit model of C-section coupled line and filter design procedures are correctly in proposed.
中文摘要 …………………………………………………………… i
英文摘要 …………………………………………………………… ii
致謝 …………………………………………………………… iii
目錄 …………………………………………………………… iv
表目錄 …………………………………………………………… vi
圖目錄 …………………………………………………………… vii
第一章 緒論 …………………………………………………… 1
第二章 濾波器與耦合線基本理論 …………………………… 4
第三章 各種C-section耦合線結構特性之探討 …………… 18
3.1單埠C-section 耦合線結構 ……………………… 19
3.1.1單級單埠單端開路C-section耦合線結構 … 19
3.1.2單級單埠單端接地C-section耦合線結構 … 28
3.1.3單級單埠雙端開路C-section耦合線結構 … 35
3.1.4雙級單埠單端開路C-section耦合線 ……… 37
3.1.5雙級單埠参端開路C-section耦合線 ……… 42
3.2雙埠C-section 耦合線結構 ……………………… 51
3.2.1雙埠單級單端開路C-section耦合線 ……… 51
3.2.2雙埠單級雙端短路C-section耦合線 ……… 54
3.2.3雙埠雙級雙端開路C-section耦合線 ……… 60
第四章 濾波器的設計與實現 ………………………………… 64
4.1 Type A 濾波器之特性探討和模擬與量測之比較 ……… 65
4.2 Type B 濾波器之特性探討和模擬與量測之比較 ……… 70
4.3 Type C 濾波器之特性探討和模擬與量測之比較 ……… 77
第五章 結論 …………………………………………………… 85
參考文獻 …………………………………………………………… 86
[1] D.M.Pozar, Microwave Engineering, Second Edition,Wiley,N.Y.,1998.
[2] K. Kim, S. Kim, H. Han, I. Park, H. Lim, ”Compact microstrip lowpass filter using shunt open stubs and coupled slots on ground plane,” Electronics Letters Vol.40, Issue 5, pp.313 - 314, March 2004.
[3] Lung-Hwa Hsieh and Kai Chang, “Compact elliptic-function low-pass filters using microstrip stepped-impedance hairpin resonators,” IEEE Trans. Microwave Theory and Techniques Vol. 51, Issue 1, Part 1, pp.193 - 199, Jan. 2003.
[4] L. Smerklo, Y. Kempa, Y. Rybak, M. Naumets, ”Low pass filter with triangular stubs, ”Modern Problems of Radio Engineering Telecommunications and Computer, 2004, Proceeding of the International Conference, pp.154-155, Feb. 2004.
[5] Milosavljevic, Z.D.; Gmitrovic, M.V., “Design of microwave diplexers based on new Kuroda's identities,“ Electrotechnical Conference, 1998. MELECON 98., 9th Mediterranean Vol. 1, pp. 513 – 517, May 1998.
[6] Gmitrovic, M.V.; Milosavljevic, Z.D., “Designing of filters by using Kuroda's identities, “ Microwaves and Radar, 1998. MIKON '98., 12th International Conference on Vol.1 May 1998, pp.13 – 17.
[7] Schiffman, B.M., “Kuroda's identities easily derived, “ Proceedings of the IEEE Vol. 53, Issue 11, pp.1800 – 1801, Nov. 1965.
[8] Jones,E.M.T., ”Coupled-Strip-Transmission-Line Filters and Directional Couplers,” IEEE Tans. Microwave Theory Tech., vol.MTT-4, pp.75-81, Apr 1956.
[9] Zysman, G.I. and Johnson, A.K., “Coupled Transmission Line Networks in an Inhomogeneous Dielectric Medium,” IEEE Tans. Microwave Theory Tech., vol. MTT-17, pp .753-759, Oct 1969.
[10]Reed, J., Wheeler, G.J., “A Method of Analysis of Symmetrical Four-Port Networks,” IEEE Tans. Microwave Theory Tech., vol.MTT-4, pp.246-252, Oct 1956.
[11]IE3D,simulator,Zeland software Inc
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