High-gain mixer using cascode current bleeding and gm -boosting techniques

Ji Young Lee, Tae-Yeoul Yun

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This paper presents a high-gain down-conversion mixer using a cascode current bleeding technique and a transconductance (g m)-boosting technique. Unlike the conventional folded-type mixer, an nMOS input transconductance transistor is allocated under pMOS switching transistors and load resistors in the proposed mixer. This topology allows the folded mixer to reuse the total current at the input transconductance transistor for low power consumption and to adopt the current bleeding technique for high gain. In addition, the g m-boosting technique increases effective transconductance by adding a positive-feedback inductor. Measured results show a maximum voltage conversion gain of 23.8 dB, an input third-order intercept point (IIP3) of −10.5 dBm at the maximum gain, a minimum noise figure of 4.3 dB, and a 3-dB bandwidth from 7.2 to 8.4 GHz with a consumption of 3.9 mW from a 1.2 V supply. The chip size, including test pads, is 0.9 × 0.95 mm2 using 0.13 μm RF CMOS technology.

Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalMicrowave and Optical Technology Letters
Volume59
Issue number1
DOIs
StatePublished - 2017 Jan 1

Fingerprint

bleeding
Transconductance
transconductance
high gain
Transistors
transistors
Mixer circuits
positive feedback
reuse
Noise figure
inductors
resistors
Resistors
CMOS
Electric power utilization
topology
chips
Topology
bandwidth
Feedback

Keywords

  • cascade
  • current bleeding
  • current reuse
  • gm boosting

Cite this

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High-gain mixer using cascode current bleeding and gm -boosting techniques. / Lee, Ji Young; Yun, Tae-Yeoul.

In: Microwave and Optical Technology Letters, Vol. 59, No. 1, 01.01.2017, p. 1-6.

Research output: Contribution to journalArticle

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