A Study of second-order nonlinearity in a single-ended RF input Gilbert mixer

Ye, R. F.; Horng, Tzyy‐Sheng; Wu, Jiming

doi:10.1109/apmc.2009.5384413

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2013

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“…The RF input of the Gilbert mixer can be single-end with the other input AC grounded. However, this topology degrades slightly linearity [8]. The degenerated resistor is added to improve the linearity of the mixer.…”

Section: A Rf Sectionmentioning

confidence: 99%

A configurable Compass/GPS multiband RF receiver

Zhang

Liu

Wen

et al. 2013

2013 IEEE International Wireless Symposium (IWS)

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A configurable Compass/GPS multiband GNSS RF receiver with wide bandwidth in a heterodyne radio topology is implemented in a 0.35µm SiGe BiCMOS process. By programming the synthesizer to generate different local oscillator (LO) signals, the proposed receiver downconverts GNSS signals in L1/B1/B2/B3 bands to an identical intermediate frequency (IF) of 46MHz. An automatic gain control (AGC) loop is adopted to improve the noise and anti-interference performance. The receiver achieves a total noise figure of less than 3.5dB and a maximum voltage gain of 112dB with 70dB dynamic range while consuming 32mA current from a 3.3V supply, with a die area of 3.5×3.8mm 2 including ESD protection pads.

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Section: A Rf Sectionmentioning

confidence: 99%