An 8-10 GHz upconversion mixer, with a low-frequency calibration loop resulting in better than -73dBc in-band spurs
conference paper
An 8-10 GHz X-band upconversion quadrature mixer stage implemented in 250 nm SiGe BiCMOS is presented. Orthogonality of the spurious responses caused by clock feed through, I/Q mismatch and baseband harmonics after self-mixing was exploited to realize a baseband calibration scheme reducing all in-band spurs down to below -73dBc, for baseband signals up to a bandwidth of 2MHz and with an IF center frequency up to 100MHz. Utilizing a low-frequency output spectrum analysis of an integrated self-mixer at the upconversion mixer output for calibration, eliminates the need for expensive microwave frequency spectrum analyzers. © 2016 IEEE.
Topics
BICMOS integrated circuitsBuilt-in self-testMicrowave integrated circuitsBiCMOS technologyCalibrationMicrowave integrated circuitsRadio wavesReconfigurable hardwareSemiconducting siliconSpectrum analysisSpectrum analyzersBaseband signalsBiCMOS integrated circuitsCalibration schemesCenter frequencyQuadrature mixerSpurious responseUp-conversionUp-conversion mixersBuilt-in self test
TNO Identifier
546221
ISSN
15292517
ISBN
9781467386500
Publisher
Institute of Electrical and Electronics Engineers Inc.
Article nr.
7508237
Source title
2016 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2016, 22 May 2016 through 24 May 2016
Editor(s)
Mehta, S.
Lin, L.
Lin, L.
Pages
7-10
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