| Autor: |
Meng Cao, Pietig, Rainer |
| Předmět: |
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| Zdroj: |
IEEE Transactions on Microwave Theory & Techniques; Aug2005, Vol. 53 Issue 8, p2572-2579, 8p |
| Abstrakt: |
A method to design a circulator based on a ferrite coupled line (FCL) with reduced length is presented. This is achieved by appropriate matching networks. Using ferrite perturbation theory, we derive closed-form expressions for the required matching impedances and the resulting bandwidth of the matched device. Based on this analysis, a realistic design for a stripline FCL circulator is obtained, whose length is shorted by a factor of three. A microstrip FCL circulator with only half of the optimum length is designed and fabricated. Both simulation data and measurement results clearly demonstrate the feasibility of a circulator based on an FCL with reduced length. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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