Abstract:A D-band divide-by-6 injection-locked frequency divider (ILFD) is presented. The basic mechanism of high division ratios frequency divider is investigated. The circuit employs a wideband microstrip Lange coupler, a microstrip delay line and a pair of Cascode transistors to form a feedback loop for enhanced divide-by-6 operation. The proposed ILFD is fabricated with chip size of 0.7 × 0.9 mm 2 in a 0.13 µm SiGe HBT technology. The losses of WR-6 waveguide and 170-GHz probe in measurement setup are calibrated ac… Show more
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