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We fabricated a fully integrated WiMAX transceiver in a 90-nm CMOS that can reduce balun and matching network components on an RF module board. Output linearity of up to 12 dBm and a wide variable gain range of 60 dB were achieved using a single-ended signal interface for the PA driver of the transmitter. A combination of a class AB amplifier and a class C(More)
Reconfigurable bandpass filters that can adapt to many frequency bands will be one of the key parts in the future mobile terminals. A multi-bit reconfigurable resonator using tapped transmission line and RF Switches has been proposed and two-stage bandpass filters (BPF) have been developed. However, bandwidth control of the reconfigurable BPF remains as an(More)
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