Design of FET Ring Mixer using 180 nm CMOS Technology for Band #1 of WiMedia MB-OFDM UWB Systems
A double balanced down conversion FET ring mixer is proposed for band #1 of WiMedia multi band Orthogonal frequency division multiplexing (MB-OFDM) ultra wideband (UWB) system at RF frequency of 3.432 GHz and IF frequency of 264 MHz and LO frequency of 3.696 GHz. Differential LC matching is used at RF port to impedance match the RF signal with required matching bandwidth with low conversion loss. Proposed mixer is simulated using Keysight ADS software using 180nm CMOS process. The mixer achieves the minimum conversion loss of 5.38 dB, 1 dB compression point (P1dB)of 5.85 dBm, the third order input intercept point (IIP3) of 16.530 dBm, a SSB noise figure of 4.687 dB and S11 of -14.020 dB.