Qinyang Wu

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In this paper, the design and measurements of a 8-12GHz high-efficiency MMIC high power amplifier (HPA) implemented in a 0.25μm GaAS pHEMT process is described. The 3-stage amplifier has demonstrated from 37% to 54% power-added efficiency (PAE) with 12W of output power and up to 27dB of small signal gain range from 8-12GHz. In particular, over the(More)
The logic construction of a double-edge-triggered (DET) flip-flop, which can receive input signal at two levels of the clock, is analyzed and a new circuit design of CMOS DET flip-flop is proposed. Simulation using SPICE and a 1 micron technology shows that this DET flip-flop has ideal logic functionality, a simpler structure, lower delay time and higher(More)
In recent years, radio frequency identification (RFID) UHF technology receives great attention because of its wide use in many fields. RFID tag plays one of the most important roles in RFID applications. Therefore special attention should be paid to tag design. In this paper, we present a tag design and its test. After a brief introduction of our design,(More)
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