A 3.65mW, amplifier-based up-conversion mixer for zigbee application

Abstract

This paper demonstrates a component of radio frequency transmitter called up-conversion mixer with high conversion gain and ameliorate linearity. The novelty of given circuit architecture is that CMOS transconductance amplifier is used to improve the overall conversion gain. For changing to an unbalanced baseband signal (UBBBS) to differential balanced signal (DBS), a passive balun circuit has been used. The circuit operates at frequency 2.4 GHz, and the local oscillator frequency is 2.3 GHz. The conversion gain and IIP3 of the proposed circuit has been achieved 21.4 dB and 4.24 dBm respectively. The proposed circuit is designed and simulated using Cadence Analog and Digital System Design Tools with PDK UMC90 nm CMOS Technology. This circuit is operational on the rail-to-rail power supply of ±1.8 V.