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We firstly propose the concept of a frequency agile electromagnetic decoupling MEMS-based device. We experimentally show the feasibility of such an apparatus, and further work consists in cascading more than one decoupling device to achieve stronger electromagnetic decoupling values. The structure consists of a freestanding half-wavelength resonator mounted on a movable shuttle connected with large...
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...
In front-end modules of UWB applications, there are BPFs used to make the applications complying with the FCC's spectrum mask regulations at the transmitter paths, and to improve signal selectivity and receiving sensitivity at the receiver paths. Most of the UWB filtes in the applications now are made on printed circuit boards (PCBs) or using LTCC technology. We have developed a miniaturized UWB band-pass-filter...
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