Abstract
This paper deals with the design and application of nonuniform microstrip transmission lines on anisotropic substrates. A rigorous analysis is based on the use of Hertz vector potentials, moment method and transmission line theory to determine the dispersion characteristics of single and coupled tapered microstrip lines for accurate performance prediction. Results are presented for the main parameters providing the necessary information to design several devices on tapered microstrip, with variation on the strip width and dielectric height, for (M)MIC and antennas applications. A good agreement was observed with the results available in the literature for tapered lines on isotropic substrates.
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REFERENCES
T. Itoh and R. Mittra, “Spectral-domain approach for calculating the dispersion characteristics of microstrip lines,” IEEE Trans. Microwave Theory Tech., vol. MTT-21, pp. 496–499, July 1973.
K. C. Gupta, R. Garg, and I. J. Bahl, Microstrip lines and slotlines. Dedham, MA: Artech House, 1979.
T. Itoh, Numerical techniques for microstrip and millimeter-wave passive structures. New York: John Wiley & Sons, 1989.
N. G. Alexópoulos, “Integrated circuit structures on anisotropic substrates,” IEEE Trans. Microwave Theory Tech., vol. MTT-33, pp. 847–882, Oct. 1985.
H. Lee and V. K. Tripathi, “Spectral-domain analysis of frequency dependent propagation characteristics of planar structures on uniaxial medium,” IEEE Trans. Microwave Theory Tech., vol. MTT-30, pp. 1188–1193, Aug. 1982.
M. R. G. Maia, A. G. d'Assunção, and A. J. Giarola, “Dynamic analysis of microstrip lines and finlines on uniaxial anisotropic substrate,” IEEE Trans. Microwave Theory Tech., vol. MTT-35, pp. 881–886, Oct. 1987.
M. R. M. L. Albuquerque, A. G. d'Assunção, M. R. G. Maia, and A. J. Giarola, “Full-wave analysis of microstrip lines on ferrite and anisotropic dielectric substrates,” IEEE Trans. on Magnetics, vol. 25,no 4, pp. 2944–2946, July 1989.
G. Matthaei, L. Young, and E. Jones, Microwave Filters, Impedance-Matching Networks and Coupling Structures, New York: McGraw-Hill, 1964.
D. M. Pozar, “Radiation and scattering from a microstrip patch on a uniaxial substrate,” IEEE Trans. Antennas Propagat., vol. AP-35, pp. 613–621, June 1987.
S. Uysal and J. Watkins, “Novel microstrip multifunction directional couplers and filters for microwave and millimeter-wave applications,” IEEE Trans. Microwave Theory Tech., vol. MTT-39, pp. 977–985, June 1991.
P. Pramanick and P. Bhartia, “A generalized theory of tapered transmission line matching transformers and asymmetric couplers supporting non-TEM modes,” IEEE Trans. Microwave Theory Tech., vol. MTT-37, pp. 1184–1191, Aug. 1989.
M. A. Mehalic and R. Mittra, “Investigation of tapered multiple microstrip lines for VLSI circuits,” IEEE Trans. Microwave Theory Tech., vol. MTT-38, pp. 1559–1567, Nov. 1990.
A. B. Kouki, A. Khebir, R. G. Bosisio, and F. M. Ghannouchi, “A novel technique for the analysis of dielectric height variations in microstrip circuits,” IEEE Trans. Microwave Theory Tech., vol. MTT-42, pp. 73–77, Jan. 1994.
A. G. d'Assunção and M. R. M. L. Albuquerque, “Tapered microstrip line circuits on anisotropic substrates with height variations,” in Proc. 4 th Intern. Conference on Millimeter and Submillimeter Waves and Applications, vol. 3465, July 1998, pp. 122–128.
D. Mirshekar-Syahkal and J. B. Davies, “Accurate analysis of tapered planar transmission lines for microwave integrated circuits,” IEEE Trans. Microwave Theory Tech., vol. MTT-29, pp. 123–128, Feb. 1981.
M. Kobayashi and N. Sawada, “Analysis and synthesis of tapered microstrip transmission lines,” IEEE Trans. Microwave Theory Tech., vol. MTT-40, pp. 1642–1646, Aug. 1992.
M. R. M. L. Albuquerque, A. G. d'Assunção, and F. Lima, “Microstrip transmission line tapers on ferrites,” J. Appl. Physics, vol. 81,no 8, pp. 4304–4306, Apr. 1997.
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Albuquerque, M.R.M.L., d'Assunção, A.G. Effect of the Dielectric Anisotropy on the Propagation Properties of Microstrip Tapers with Height Variations. International Journal of Infrared and Millimeter Waves 21, 1517–1528 (2000). https://doi.org/10.1023/A:1026421410976
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DOI: https://doi.org/10.1023/A:1026421410976