2016
DOI: 10.3906/elk-1307-80
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A 2.4-GHz highly linear derivative superposition Gilbert cell mixer

Abstract: This paper presents a new derivative superposition Gilbert cell to minimize the third-order nonlinear current term of transconductance transistors. To decrease the parasitic capacitance effect on gain, noise figure, and linearity of the circuit, extra inductors and capacitors are added between the switching and transconductance stages. The proposed mixer is simulated in 0.18-µ m RF-CMOS technology with a 1.8-V supply. The results show an improvement of about 23 dBm in IIP3 compared to conventional mixers. The … Show more

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Cited by 3 publications
(2 citation statements)
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“…The proposed mixer is tuned for band 1 of the MB-OFDM system with 3.432 GHz RF frequency, 264 MHz IF frequency and 3.696 GHz LO frequency. Active mixers provide gain [6][7][8][9] whereas passive mixers [10][11][12][13][14][15][16][17][18][19][20][21][22] suffer from [10][11][12][13][14][15][16][17][18][19][20][21][22]. Narrowband ring mixer is reported with dc bias and LC matching circuit.…”
Section: Introductionmentioning
confidence: 99%
“…The proposed mixer is tuned for band 1 of the MB-OFDM system with 3.432 GHz RF frequency, 264 MHz IF frequency and 3.696 GHz LO frequency. Active mixers provide gain [6][7][8][9] whereas passive mixers [10][11][12][13][14][15][16][17][18][19][20][21][22] suffer from [10][11][12][13][14][15][16][17][18][19][20][21][22]. Narrowband ring mixer is reported with dc bias and LC matching circuit.…”
Section: Introductionmentioning
confidence: 99%
“…In [ 14 , 15 ], the LO and radio frequency (RF) signals were applied at the drain and gate terminals of the transistor, but these mixers suffered with poor linearity. In [ 16 , 17 ], to enhance the linearity, a CMOS mixer operating at 2.4 GHz with a derivative superposition (DS) technique and a mixer design with input active balun is presented. However, this mixer design increases the power consumption.…”
Section: Introductionmentioning
confidence: 99%