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This paper describes a MEMS tunable bandpass filter, which operates at the K band and features a low insertion loss of -2.79-3.58 dB, a small size of 2.9 mm by 1.5 mm and a wide continuous tuning range of 32%. The tunable filter is based on MEMS-varactors-loaded microstrip resonators and has been directly constructed on a high-k low-temperature-co-fired-ceramics (LTCC) wiring wafer using MEMS-on-LTCC...
This paper presents a 20-GHz pseudo-differential power amplifier (PA) fabricated in a standard 90-nm Si-CMOS process. The pseudo-differential PA has a two-stage cascode configuration with differential input and output ports. Assuming the use of an off-chip transformer, the input impedance of each single PA is designed to be 6.25 Omega and the output impedance to be 25 Omega. The individual amplifier...
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