A Fully Integrated CMOS IF Module for C-band RF Transceiver

this paper presents a fully integrated IF module which can receive or transmit signal with only one port. The switching time between reception and transmission is less than 3 mu s. In the state of reception, the IF module can convert differential signal to single-ended signal. Simulation results show 3.2dB power gain and 11.65dBm OP1dB while drawing 45mA from a 3.3V supply. In the state of transmission, the IF module can convert single-ended signal to differential signal. Simulation results show 0 similar to 15dB programmable voltage gain and -3.5dBm IP1dB while drawing 16mA from a 3.3V supply. At working frequency of 1.3GHz similar to 1.4GHz, VSWRs can attain high performance in two states, both are less than 1.5: 1. The chip is designed in 0.18 mu m CMOS technology, the die area is 1.5*1.5 mm2. All the components of the linearization scheme are designed on-chip enabling maintenance of a single chip transceiver solution.