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Approximate synthesis formulas for microstrip line with aperture in ground plane

โœ Scribed by D. Packiaraj; K. J. Vinoy; A. T. Kalghatgi

Book ID
102948554
Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
692 KB
Volume
22
Category
Article
ISSN
1096-4290

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โœฆ Synopsis

Approximate closed-form expressions for the propagation characteristics of a microstrip line with a symmetrical aperture in its ground plane are reported in this article. Well-known expressions for the characteristic impedance of a regular microstrip line have been modified to incorporate the effect of this aperture. The accuracy of these expressions for various values of substrate thickness, permittivity and line width has been studied in detail by fullwave simulations. This has been further verified by measurements. These expressions are easier to compute and find immense use in the design of broadband filters, tight couplers, power dividers, transformers, delay lines, and matching circuits. A broadband filter with aperture in ground plane is demonstrated in this article. V C 2011

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