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The design and experimental validation of a pseudo-elliptical response filter at W-Band is presented. A micromachining technique based on the thick SU-8 photo-resist is used to construct the filter. The optimized structure is specially well-suited for the implementation of filters with transmission zeros by means of micromachining techniques, since the extracted poles are implemented by simple stubs...
A novel RF duplexer with balanced receiving output ports and low temperature coefficient of frequency (TCF) is proposed. The topology of balanced receiving RF filter is designed with both lattice and ladder type. RF resonators in this filter are designed based on a bulk acoustic wave (BAW) structure in which each layer has alternative negative and positive TCF values. The RF circuit block performing...
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