Curve-fitting formulas for fast determination of accurate resonant frequency of circular microstrip patches
- 1 January 1988
- journal article
- Published by Institution of Engineering and Technology (IET) in IEE Proceedings H Microwaves, Antennas and Propagation
- Vol. 135 (5) , 289-292
- https://doi.org/10.1049/ip-h-2.1988.0060
Abstract
A further study is made of the resonant frequency of circular microstrip patches. Based on earlier work, the resonant frequency problem is formulated in terms of an integral equation. Galerkin's method is used to calculate the resonant frequencies of nonaxial symmetric modes in different circular microstrip patches. Using the database built by Galerkin's method, a curvefitting formula is developed to reproduce the accurate resonant frequency rapidly. The accuracy of this formula is within 1.0%. This formula is useful for the computer-aided design of microstrip antennas and microwave integrated circuits.Keywords
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