Abstract
AbstractThis article presents a wideband, double‐balanced microwave/millimeter‐wave Gilbert‐cell mixer, using 0.15 μm GaAs pHEMT technology. Two baluns and a matching network are used in RF‐ and LO‐ports to convert single‐ended signals to differential signals, for wideband use. This mixer demonstrates an average conversion gain is 2.22 ± 1.5 dB at PLO = 2 dBm, from 30 to 65 GHz. The LO‐to‐RF and LO‐to‐IF isolations are all better than 28 dB, between 30 and 65 GHz. The measured P1dB and IIP3 are 5 dBm at 40 GHz and 10 dBm at 60 GHz, respectively. The mixer occupies a chip area, including probing pads, of 1.68 mm2 and consumes 21 mA, with a supply voltage of 5V. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1196–1200, 2012
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