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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)
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 following topics are dealt with: CMOS RF power amplifier technology; and distortion reduction techniques.