Analysis of strip-line circuit based on planar circuit model and planar circuit equations (invited review article)
✍ Scribed by Hsu, Jui-Pang
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 887 KB
- Volume
- 3
- Category
- Article
- ISSN
- 1050-1827
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✦ Synopsis
Abstract
Strip‐line circuits at relatively higher frequencies can be considered as two‐dimensionally extended circuits rather than one‐dimensional transmission‐line circuits. Hence, the stripline circuit can be modeled as a parallel‐plate planar circuit. In this article, the following topics are reviewed and described based on the results of many researchers: (1) how to model the strip‐line circuit to a parallel‐plate waveguide circuit, which leads to a parallel‐plate planar circuit; (2) how to analyze the strip‐line modeled parallel‐plate waveguide circuit based on planar circuit equations and conventional circuit theory where mode voltage and mode current are properly defined—especially how to construct the circuit equations after dividing the planar circuit into parallel‐plate waveguides and planar junctions, and giving the corresponding the mode characteristic impedance and mode impedance; and (3) the practical analysis of a stub‐type lowpass filter and branch‐line 3‐dB hybrid with the corresponding experimental results. The good agreement between the calculated and measured results demonstrates the validity of the present method of analysis. © 1993 John Wiley & Sons, Inc.