UM
A sine-LO square-law harmonic-rejection mixer-theory, implementation, and application
Fujian Lin1; Pui-In Mak1; Rui P. Martins1,2
2014-02
Source PublicationIEEE Transactions on Microwave Theory and Techniques
ISSN0018-9480
Volume62Issue:2Pages:313-322
Abstract

A square-law harmonic-rejection mixer (SL-HRM) driven by a sine local oscillator (LO) is proposed for wideband and tunable rejection of all LO harmonics. The key performances including the gain, noise figure (NF), input-referred third-order intercept point (IIP3), and harmonic rejection ratio (HRR) with respect to the amplitude and purity of the sine-LO are analyzed. In the circuit level, the SL-HRM incorporates a voltage-boosted technique to surmount the gain and NF penalties of square-law mixing, while guaranteeing the device reliability via introducing a supply startup circuit and a node-voltage protection circuit. The entailed high-purity sine-LO is achieved via a digital-intensive square-to-sine LO generator plus a passive-RC low-pass filter. Fabricated in 65-nm CMOS, the VHF-/UHF-band SL-HRM has a tunable gain of 1-13 dB, associated with an NF of 27-15 dB, under an LO amplitude of 50-200 mV . The IIP3 is stable within from +6.5 to +7.6 dBm, as expected. The tunable HRR and HRR are 13-40 dB and 17-45 dB, respectively. The mixer core consumes 7.5 mW at 2.5 V, while the LO generator draws 3-6 mW at 1.2 V. The total active area is just 0.042 mm. © 2014 IEEE.

KeywordActive Mixer Cmos Gain Harmonic Rejection Input-referred Third-order Intercept Point (Iiip3) Noise Figure (Nf) Sine Local Oscillator (Lo) Square Law Voltage Boosted Wideband
DOIhttp://doi.org/10.1109/TMTT.2013.2294865
URLView the original
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000331446700013
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Cited Times [WOS]:3   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorPui-In Mak; Rui P. Martins
Affiliation1.State-Key Laboratory of Analog and MixedSignal VLSI and the Faculty of Science and Technology, Department of Electrical and Computer Engineering (FST-ECE), University of Macau, Macao, China
2.e Instituto Superior Técnico (IST)/University of Lisbon, 1049-001 Lisbon, Portugal
First Author AffilicationFaculty of Science and Technology
Corresponding Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Fujian Lin,Pui-In Mak,Rui P. Martins. A sine-LO square-law harmonic-rejection mixer-theory, implementation, and application[J]. IEEE Transactions on Microwave Theory and Techniques,2014,62(2):313-322.
APA Fujian Lin,Pui-In Mak,&Rui P. Martins.(2014).A sine-LO square-law harmonic-rejection mixer-theory, implementation, and application.IEEE Transactions on Microwave Theory and Techniques,62(2),313-322.
MLA Fujian Lin,et al."A sine-LO square-law harmonic-rejection mixer-theory, implementation, and application".IEEE Transactions on Microwave Theory and Techniques 62.2(2014):313-322.
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