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Progress In Electromagnetics Research
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ANALYSIS AND DESIGN OF NEW ACTIVE QUASI CIRCULATOR AND CIRCULATORS

By R. Bahri, A. Abdipour, and G. Moradi

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Abstract:
This paper introduces two new type active quasi circulators and three new type active circulators which use the out-of-phase power divider/combiner, symmetric/anti-symmetric couplers and generic unilateral amplifiers. The proposed circuits are full-symmetric and composed of conventional microwave devices. Analytical relations for active quasi circulator modules are described. These modules have many variations and can be used for very wide frequency range depending on the type of the employed unilateral amplifier, power divider/combiner and symmetric/anti-symmetric couplers. Based on the proposed configurations, analysis and design of n-port active circulators are presented. Also they can be used in MMICs as active quasi circulators, active circulators and in other high frequency applications.

Citation:
R. Bahri, A. Abdipour, and G. Moradi, " analysis and design of new active quasi circulator and circulators ," Progress In Electromagnetics Research, Vol. 96, 377-395, 2009.
doi:10.2528/PIER09072501
http://www.jpier.org/PIER/pier.php?paper=09072501

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