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A new Class of MET based Tunable Microwave Filters
In this paper, a new class of electronically tunable microwave filter is presented. The Microwave Energy Tunneling (MET) phenomenon is exploited to design a tunable microwave filter for X-band operation. The proposed filter is based on low cost PCB technology and can be tuned to any lower or higher frequency with the help of switches inserted at appropriate positions to achieve a broad tuning range. The proposed technique can be used to design highly high Q, reliable, low cost, and electronically tunable filters for mobile and radar communication systems.