طراحي بهينه پيوننده خط شاخهاي با تطبيق امپدانس
محورهای موضوعی : مهندسی برق و کامپیوترهمایون عریضی 1 , جمال حامدفر 2
1 - دانشگاه علم و صنعت ایران
2 - شركت ليرلن خودرو
کلید واژه: پيوننده جهتيپيوننده خط شاخهايتطبيق امپدانسبهينهسازيمدارات ميكروويوطراحي به كمك كامپيوتر,
چکیده مقاله :
در اين مقاله يك روش عددي براي طراحي بهينه پيوننده خط شاخهاي براي تقسيم توان اختياري بين دهانههاي خروجي در يك باند فركانسي همراه با تطبيق امپدانس منبع به امپدانس بار ارائه ميشود. ابتدا، دامنه امواج منعكسه و منتقله در چهار دهانه پيوننده بر حسب ضرايب انعكاس و انتقال نوشته شده كه بر حسب پارامترهاي پراكندگي و در نهايت بر حسب ماتريس انتقال در تحليل زوج و فرد بيان ميشود. بالاخره پس از محاسبه توان خروجي در چهار دهانه، تابع خطائي براي نسبت توانها در خروجيهاي پيوننده در باند فركانسي مطلوب ميسازيم. در اين روش مدلهاي پاشندگي براي خطوط ميكرواستريپ نيز منظور ميشود. كمينهسازي تابع خطا، ابعاد پيوننده مانند پهناي نوار ميكرواستريپ و طول خطوط و شاخههايش را به دست ميدهد. پاسخ فركانسي حاصل از برنامههاي كامپيوتري نشان ميدهد كه روش پيشنهادي براي طراحي بهينه پيوننده خط شاخهاي موثر و كارآمد ميباشد.
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[1] D. K. Paul. et al., "Broadband branchline coupler for S band," Electronics Lett., vol. 27, no. 15, pp. 1318-1319, 18th Jul. 1991.
[2] R. Levy, "A guide to the practical application of Chebyshev functions to the design of microwave components," in Proc. IEE, C, vol. 106, no. 6, pp. 193-199, Jun. 1959.
[3] P. A. Rizzi, Microwave Eng., Passive Circuits, Englewood Cliffs, NJ: Prentice-Hall, 1988.
[4] D. M. Pozar, Microwave Engineering, 2nd Ed. New York: Wiley, p. 379, 1998.
[5] R. Mongia, I. Bahl, and P. Bhartia, RF and Microwave Coupled-Line Circuits, Norwood, pp. 90-97, MA: Artech House, 1999.
[6] G. L. Montgomery, L. Young, and E. M. T. Jones, Microwave Filters, Impedance-Matching Networks and Coupling Structures. New York: McGraw-Hill, 1964. (Reprinted by Artech House, Norwood, MA, 1980.)
[7] T. C. Ewards, Foundations for Microstrip Circuit Design, 2nd Ed.,New York: Wiley, 1992.
[8] B. C. Wadell, Transmission Line Design Data. Norwood, MA:Artech House, 1991.
[9] E. H. Fooks and R. A. Zakarevicius, Microwave Engineering Using Microstrip Circuits. Englewood Cliffs, p. 109, NJ: Prentice–Hall, 1990.
[10] J. Reed and G. Wheeler, "A method of analysis of symmetrical four port network," IEEE Trans. Microwave Theory Tech., vol. 4, no. 10, pp. 246-252, Oct. 1956.
[11] R. Levy, "Directional couplers," Advances in Mictowaves, vol. 1,pp. 115-209, L. Young, Ed., New York: Academic, 1966,
[12] W. E. Caswell and R. F. Schwartz, "The directional coupler- 1966,"IEEE Trans. Microwave Theory Tech., vol. 15, no. 2, pp. 120-123, Feb. 1967.
[13] S. B. Cohn and R. Levy, "History of microwave passive components with particular attention to directional couplers," IEEE Trans. Microwave Theory Tech., vol. 32, no. 9, pp. 1045-1054, Sep. 1984.
[14] B. M. Oliver, "Directional electromagnetic couplers," in Proc. IEEE, vol. 42, no. 11, pp. 1986-1992, Nov. 1954.
[15] J. Reed, "The muliple branch waveguide coupler," IEEE Trans.Microwave Theory Tech., vol. 6, no. 10, pp. 393-403, Oct. 1958.
[16] P. D. Lomer and J. W. Crompton, "A new form of hybrid junction for microwave frequencies," in Proc. IEE, B, vol. 104, no. 5, pp. 261-264, May 1957.
[17] D. A. Pierre, Optimization Theory and Applications. New York:Wiley, 1969.
[18] L. Young, "Synchronous branch-guide directional couplers for low and high power applications," IEEE Trans. Microwave Theory Tech., vol. 10, no. 11, pp. 459-475, Nov. 1962.
[19] K. G. Patterson, "A method for accurate design of a broadband multibranch waveguide coupler," IEEE Trans. Microwave Theory Tech., vol. 7, no. 11, pp. 466-473, Nov. 1962.
[20] R. Levy and L. F. Lind, "Synthesis of symmetrical branch- guide directional couplers," IEEE Trans. Microwave Theory Tech., vol. 16, no. 10, pp. 80-89, Oct. 1959.
[21] Y. Chen Ho, "Transform impedance with a branchline coupler," Microwaves, vol. 15, no. 5, pp. 47-52, May 1976.
[22] M. Muraguchi, T. Yukitake, and Y. Natio, "Optimum design of 3-dB branch- line couplers using microstrip lines," IEEE Trans. Microwave Theory Tech., vol. 31, no. 8, pp. 674-678, Aug. 1983.
[23] J. W. Gipprich, "A new class of branch- line directional couplers," in Proc. IEEE MTT-S Int’l Microwave Symp. Dig., pp. 589-592, 1993.
[24] T . Hirota, A. Minakawa, and M. Muraguchi, "Reduced- size branchline and rat- race hybrids for unipolar MMICS," IEEE Trans. Microwave Theory Tech., vol. 38, no. 3, pp. 270-275, Mar. 1990.
[25] T. Anada, J. P. Hsu, and T. Okoshi, "New synthesis method for a branch- line 3dB hybrid: a hybrid approach comprising planar and transmission line circuit concepts," IEEE Trans. Microwave Theory Tech., vol. 39, no. 6, pp. 969-976, Jun. 1991.
[26] M. Muraguchi, T. Yukitake, and Y. Naito, "Optimum design of 3-dB branch- line couplers using microstrip lines," IEEE Trans. Microwave Theory Tech., vol. 31, no. 8, pp. 674-678, Aug. 1983.
[27] C. Y. Lee and T. Itoh, "Full- wave analysis and design of a doublesided branch- line coupler and its complementary structure," IEEE Trans. Microwave Theory Tech., vol. 43, no. 8, pp. 1895-1901,Aug. 1995.
[28] T. Kawai and L. Ohta, "Planar- circuit- type 3-dB quadrature hybrids," IEEE Trans. Microwave Theory Tech., vol. 42, no. 12, pp. 2462-2467, Dec. 1994.
[29] C. H. Ho, L. Fan, and K. Chang, "A broad- band unipolar branchline coupler using a coupled rectagular slotline ring," IEEE Microwave Guided Wave Lett., vol. 3, no. 6, pp. 175-176, Jun. 1993.
[30] S. Banba, T. Hasegawa, and H. Ogawa, "Multilayer MIMIC branchline hybrid using thin dielecric layers," IEEE Microwave Guided Wave Lett., vol. 1, no. 11, pp. 346-347, Nov. 1991.
[31] M. H. Murgulescu, el al., "New small 90° hybrid coupler," Electronics Lett., vol. 30, no. 16, pp. 1289-1290, 4th Aug. 1994.
[32] D. K. Paul, et al., "Broadband branchline coupler for S band," Electronics Lett., vol. 27, no. 15, pp. 1318-1319, 18th Jul. 1991.
[33] B. Mayer, "New broadband branchline coupler," Electronics Lett., vol. 26, no. 18, pp. 1477-1478, 30th Aug. 1990.
[34] B. Mayer and R. Knochel, "Branchline- couplers with improved design flexibility and broad bandwidth," in Proc. IEEE MTT- S Int’l Microwave Symp. Digest, pp. 391-394, 8-10, May 1990.
[35] F. Alessandri, et al., "Analysis of branch line coupler in suspended stripline with finite metallization thickness," in Proc. IEEE MTT- S Int’l Microwave Symp. Digest, pp. 1089-1092, 1993.
[36] T. Becks, G. Grounau, and I. Wolff, "Efficient S – parameter calculation of branchline and patch couplers with the spectral domain analysis method," in Proc. IEEE MTT- S Int’l Microwave Symp. Digest, pp. 484-487, 1991.
[37] A. Ashoka "Practical realization of difficult microstrip line hybrid couplers and power dividers," in Proc. IEEE MTT- S Int’l Microwave Symp. Digest, pp. 273-276, 1992.
[38] E. Hammerstad and O. Jenson, "Accurate models for microstrip computer – aided design," in Proc. IEEE MTT- S Int’l Microwave Symp. Dig., pp. 407-409, 1980.
[39] M. Kobayashi, "A sispersion formula satisfying recent requiements in microstrip CAD," IEEE Trans. Microwave Theory Tech., vol. 36, no. 8, pp. 1246-1250, Aug. 1988.
[40] M. Kirschning and R. H. Jansen, "Accurate model for effective dielectric constant of microstrip and validity up to millimeter- wave frequencies," Electron Lett., vol. 18, no. 3, pp. 272-273, 18th Mar.1982.
[41] R. E. Collin, Foundations for Microwave Engineering, p. 254,Second Edition, p. 254, New York: McGraw-Hill, 1990.