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Frequency quadruplers for an integrated 77 GHz subharmonically pumped automotive radar transceiver in SiGe are presented. The fully differential circuits are integrated in a 200 GHz SiGe:C production technology and operate at a supply voltage of 3.3 V. Two different multiplier concepts are introduced and evaluated. The individual multipliers are combined with a radar transceiver circuit and the receive...
A linear RF power amplifier with integrated reverse biased diode linearizer for IEEE 802.11b/g WLAN terminals is implemented with a 33 GHz-fT, 0.5-mum-SiGe bipolar technology. The proposed linearizer maintains the fixed base voltage of power stage HBTs. The power amplifier exhibits 24.5 dBm of 1-dB compression point (P1dB), with 36% of the power-added efficiency (PAE), and 17 dB of the power gain...
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