IEEE Microwave and Wireless Components Letters · 2002 · 57 citations · 6 references
EngineeringElectrical EngineeringAnalog ElectronicsMicroelectronicsMicrowave EngineeringMicrowave FiltersMicrowave Integrated CircuitsMicrowave ResonatorsMicrowave System DesignMicrowave Transmission LinesResonant CircuitsCouplingsFilter DesignFiltersInsertion LossInsertion Loss ReductionMicrowave Filter DesignTunable FiltersVolume Reduction
The use of triple mode TE/sub 01/spl delta// cubic resonators for the design of transmission mode filters is presented. Frequency tuning and coupling between modes are studied experimentally. The tunability of all inter-cavity couplings, necessary for the realization of a wide range of transfer functions, is demonstrated with a 6th degree, 5 MHz wide filter at 2 GHz. With an insertion loss of 0.7 dB in a volume of 260 cm/sup 3/, the filter presents a 2:1 volume reduction over conventional TE/sub 01/spl delta// filters.
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