An approximate formulation for the characteristic impedance of noncoplanar fin antennas
Article
Received:
Abstract
This paper describes an approximation for the characteristic impedance of noncoplanar fin antennas. The formulation is simple and enough accurate for practical applications. The error made by the approximation is less than ±2%, it has been proved to be effective by stripline theory. The numerical results are good agreement to the experimental results given by literature. The expression is useful for the design of wideband antennas.
Keywords
Conformal Mapping Characteristic Impedance Spherical Coordinate System Approximate Formulation Conformal Mapping Technique
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Preview
Unable to display preview. Download preview PDF.
References
- 1.A. Z. Fradin, Microwave antenna. UK: Pergamon, 1961Google Scholar
- 2.R. L. Carrel, “The characteristic impedance of two infinite cones of arbitrary cross section”, IRE Trans, vol.AP-6, pp.197–201, 1958.Google Scholar
- 3.A. P. Lambert, S. M. Booker, and P. D. Smith, “Calculation of the characteristic impedance of TEM horn antennas using the conformal mapping approach”, IEEE Trans, vol.AP-43, no. 11, pp.47–53, 1995.Google Scholar
- 4.Zhengwei Du, Chengli Ruan, “The solutions of a new ultra wideband noncoplanar fin antenna”, submitted to IEEE Trans on Antennas and Propagation for publication.Google Scholar
- 5.K. Huang, W. Lin, and Y. Lin, “Characteristic impedance of rectangular coaxial cone transmission line”, IEE Proc. -Microw. Antennas Propag., vol.141, no.4, pp.326–328, 1994.CrossRefGoogle Scholar
- 6.J. S. Rao, and B. N. Das, “Analysis of asymmetric stripline by conformal mapping”, IEEE Trans, vol.MTT-27, no.4, pp.299–303, 1979.Google Scholar
- 7.Harlan Howe, Jr., Stripline circuit design. USA: Burlington, Mass, 1974Google Scholar
- 8.W. J. Getsinger, “Coupled rectangular bars between parallel plates”, IRE Trans, vol.MTT-10, no.1, pp.65–72, 1962.Google Scholar
- 9.P. Roberish, “An analytic algorithm for unbalanced stripline impedance”, IEEE Trans, vol.MTT-38, vol.MTT-38, no.8, pp.1011–1016, 1990.Google Scholar
- 10.L. Yu, and B. Rawat, “Development of semi-empirical design equations for symmetrical three-line microstrip couplers”, IEEE Trans, vol.MTT-44, no.3, pp.469–472, 1996.Google Scholar
Copyright information
© Plenum Publishing Corporation 1997