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A 1-mW current reuse quadrature RF front-end for GPS L1 band in 0.18μm CMOS

Jalili, H ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.1109/ICECS.2012.6463776
  3. Publisher: 2012
  4. Abstract:
  5. A new low-power current reuse topology is proposed for the GPS receiver's RF front-end that combines the higher conversion gain and suppressed noise figure characteristics of cascade structures with the low power consumption of stacked architectures. The presented circuit, called 1.5-stage LMV cell, consists of LNA, Mixer and VCO (LMV) in such a formation that boosts LNA gain and suppresses mixer's noise figure by cascading the two stages while reusing their currents in the two stacked quadrature VCOs and placing the mixer's upper tree switches at the vicinity of on-off regions. The circuit is designed and its layout is generated in TSMC 0.18μm CMOS technology. Post-layout simulations using Spectre RF exhibit a 49 dB conversion gain, 5 dB noise figure and -108 dBc/Hz open loop phase noise while consuming only 1 mA current from a 1 V supply voltage
  6. Keywords:
  7. Cascade structures ; CMOS technology ; Conversion gain ; Current reuse ; GPS receivers ; Low Power ; Low-power consumption ; Post layout simulation ; RF front end ; Supply voltages ; Suppressed noise ; CMOS integrated circuits ; Mixers (machinery) ; Noise figure ; Global positioning system
  8. Source: 2012 19th IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2012, Seville, Seville, 9 December 2012 through 12 December 2012 ; 2012 , Pages 157-160 ; 9781467312615 (ISBN)
  9. URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6463776