Design and simulation of novel amplifier-based mixer for ISM band wireless applications.

This letter describes a low-voltage low-power (LV-LP) 2.4-GHz mixer for Industrial, Scientific and Medical (ISM) band wireless applications. The approach is based on a two-stage amplifier, and the Gilbert switch stage is inserted between the two amplifier stages. The proposed amplifier-based mixer delivers a remarkable conversion gain of 13 dB with a local oscillator (LO) power of 7 dBm, while consuming only 1.05-mW DC power from a 0.8-V supply voltage. The input-referred third-order intercept point (IIP3) of the mixer is 3.82 dBm, and the chip area is only 0.429 mm2. The results indicate that this mixer is suitable for the low-voltage low-power applications. Copyright © 2014 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]