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Design and simulation of novel amplifier‐based mixer for ISM band wireless applications
Author(s) -
Jin Jie,
Wang Chunhua,
Sun Jingru,
Du Sichun
Publication year - 2015
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.2028
Subject(s) - amplifier , ism band , electrical engineering , local oscillator , wireless , power (physics) , frequency mixer , direct coupled amplifier , voltage , rf power amplifier , electronic engineering , engineering , computer science , operational amplifier , physics , radio frequency , telecommunications , cmos , antenna (radio) , quantum mechanics
Summary 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 mm 2 . The results indicate that this mixer is suitable for the low‐voltage low‐power applications. Copyright © 2014 John Wiley & Sons, Ltd.