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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 novel tunable power amplifier module consisting of a CMOS-based broadband power amplifier and a MEMS tunable bandpass filter in K-band. The 90-nm CMOS-based power amplifier with a two-stage cascode configuration and a broadband output matching circuit has an output power of over 20 dBm at a wide frequency range between 16 GHz and 26 GHz. The power amplifier module with a MEMS...
A novel ultra wideband impulse radio architecture for 24 GHz-band short-range radar was developed using 0.13 mum InP-HEMT technology. The transmitter part generates an extremely wide band impulse from a pulse generator and then filters it by using a band pass filter (BPF). The obtained impulse shows a bandwidth of over 40 GHz and achieves flatness in the target band. The power amplifier (PA) for the...
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