A compact direct conversion receiver for C-band wireless applications

Matinpour, B.; Laskar, J.

doi:10.1109/rfic.1999.805232

Cited by 12 publications

(2 citation statements)

References 6 publications

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“…• sub-or super-harmonic mixing: with an LO at some integer multiple or fraction of the RF, dc-offsets due to LO self-mixing can be significantly suppressed [3] • dc-free coding at the transmitter: by removing the signal content at dc, reasonable high-pass filtering can be employed, particularly for wideband channels [4] • offset calibration techniques: digital sample-and-hold feedback, offset estimation with corrective feedback at baseband, and servo loops, can be used to track the dcoffset and remove it from the desired spectrum [2].…”

Section: Overview Of DC Offsets In Dcrsmentioning

confidence: 99%

DC offsets in direct-conversion receivers: characterization and implications

Svitek

Raman

2005

IEEE Microwave

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Section: Overview Of DC Offsets In Dcrsmentioning

confidence: 99%

DC offsets in direct-conversion receivers: characterization and implications

Svitek

Raman

2005

IEEE Microwave

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“…Numerous sub-harmonic mixers have been developed based on diode nonlinearity [7][8]. However, such mixers do not have conversion gain and require high LO power, isolator blocks, and filters making them difficult to integrate.…”

Section: Introductionmentioning

confidence: 99%

A 2.4GHz 0.18µm-CMOS sub-harmonic mixer for direct-down conversion receivers

Baghersalimi

Gilasgar

Saberkari

2009

2009 International Conference on Ultra Modern Telecommunications &Amp; Workshops

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This paper presents a novel low power high linear sub-harmonic mixer for direct-down conversion receiver, in which an inductive connection between RF and LO stages is used to improve the linearity and enhance the gain of Mixer. A comparison is done between two circuits for two possible conditions, High Gain Medium Linearity (HGML) and High Linearity Medium Gain (HLMG), and recently published works. Simulation results performed by Advanced Design System (ADS) in 0.18µm TSMC CMOS process show that the proposed mixer has exhibited better performance without increasing power consumption of 5mw. The inductive connection between RF and LO stages cases an enhancement of 6dB for conversion gain, 3.63dB for DSB NF and 4.7dBm for IIP3. For HGML condition, it shows a conversion gain of 13.71dB, DSB noise figure of 11.98dB, input referred 1dB compression point of -15dBm and the IIP3 of -0.3dBm.

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