An 8-10 GHz upconversion mixer, with a low-frequency calibration loop resulting in better than -73dBc in-band spurs

Withagen, J.C.J.G.; Annema, A.J.; Nauta, B.; van Vliet, F.E.

doi:10.1109/RFIC.2016.7508237

An 8-10 GHz upconversion mixer, with a low-frequency calibration loop resulting in better than -73dBc in-band spurs

Title

An 8-10 GHz upconversion mixer, with a low-frequency calibration loop resulting in better than -73dBc in-band spurs

Author

Withagen, J.C.J.G.
Annema, A.J.
Nauta, B.
van Vliet, F.E.

Contributor

Mehta, S. (editor)
Lin, L. (editor)

Publication year

2016

Abstract

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.

Subject

2015 Observation, Weapon & Protection Systems
RT - Radar Technology
TS - Technical Sciences
BICMOS integrated circuits
Built-in self-test
Microwave integrated circuits
BiCMOS technology
Calibration
Microwave integrated circuits
Radio waves
Reconfigurable hardware
Semiconducting silicon
Spectrum analysis
Spectrum analyzers
Baseband signals
BiCMOS integrated circuits
Calibration schemes
Center frequency
Quadrature mixer
Spurious response
Up-conversion
Up-conversion mixers
Built-in self test