A dispersion formula satisfying recent requirements in microstrip CAD
説明
A dispersion formula epsilon /sup *//sub eff/(f)= epsilon /sup */-( epsilon /sup */- epsilon /sup *//sub eff/(0))/(1+(f/f/sub 50/)/sup m/), for the effective relative permittivity epsilon /sup *//sub eff/(f) of an open microstrip line is derived for computer-aided design (CAD) use. The 50% dispersion point (the frequency f/sub 50/ at which epsilon /sup *//sub eff/(f/sub 50/)=( epsilon /sup */+ epsilon /sup *//sub eff/(0))/2)) is used a normalizing frequency in the proposed formula, and an expression for f/sub 50/ is derived. To obtain the best fit of epsilon /sup *//sub eff/(f) to the theoretical numerical model, the power m of the normalized frequency in the proposed formula is expressed as a function of width-to-height ratio w/h for w/h>or=0.7 and as a function of w/h, f/sub 50/, and f for w/h >
収録刊行物
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- IEEE Transactions on Microwave Theory and Techniques
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IEEE Transactions on Microwave Theory and Techniques 36 1246-1250, 1988-01-01
Institute of Electrical and Electronics Engineers (IEEE)
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詳細情報 詳細情報について
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- CRID
- 1870865117552819328
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- DOI
- 10.1109/22.3665
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- ISSN
- 00189480
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- データソース種別
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- OpenAIRE
