Title
A Low-Loss Image-Reject Mixer Using Source Follower Isolation Method for DRM/DAB Tuner Applications
Abstract
A novel low-loss image-reject mixer (IRM) using the source follower isolation method for digital radio mondiale/digital audio broadcasting applications is presented. It is based on double-quadrature mixers (DQMs) and passive polyphase filters (PPFs). The DQM is designed with four passive CMOS mixers. A source follower is inserted between the RF PPF and DQM to decrease the conversion loss of the IRM. Compared with the traditional isolation method, the source follower isolation method shows much higher on-resistance while looking into the RF port of the mixer; meanwhile, the chip area will be greatly decreased. This chip is fabricated in a 0.18-μm CMOS technology. The total conversion loss is 10.5 dB, and the conversion loss per stage of PPFs is 2.1 dB on average. The image-reject ratio is larger than 40 dB in the bandwidth of 1.536 MHz without trimming and calibration. The PldB gain compression point is 7.6 dBm. The chip core area is 1.1 × 1.3 mm2.
Year
DOI
Venue
2011
10.1109/TCSII.2011.2168014
IEEE Trans. on Circuits and Systems
Keywords
Field
DocType
cmos analogue integrated circuits,low-loss image-reject mixer,low loss,digital audio broadcasting applications,tuner applications,passive polyphase filters (ppfs),rf port,traditional isolation method,digital radio mondiale (drm),conversion loss,image-reject mixer (irm),loss 10.5 db,mixers (circuits),digital audio broadcasting,mixer,bandwidth,double-quadrature mixers (dqms),dqm,digital audio broadcasting (dab),passive cmos mixers,cmos technology,double-quadrature mixers,dab,gain compression point,size 0.18 mum,drm,irm,chip core area,source follower isolation method,rf ppf,image-reject ratio,chip area,passive filters,passive polyphase filters,digital radio mondiale,radio frequency,chip,resistors,cmos integrated circuits,capacitors,indexing terms
Electronic engineering,Radio frequency,Chip,CMOS,Bandwidth (signal processing),Digital Radio Mondiale,Digital audio broadcasting,Electrical engineering,Gain compression,Mathematics,Tuner
Journal
Volume
Issue
ISSN
58
11
1549-7747
Citations 
PageRank 
References 
0
0.34
2
Authors
8
Name
Order
Citations
PageRank
Keping Wang184.42
Zhigong Wang22921.30
XueMei Lei340.83
Xiang Cao4145983.46
Peng Han500.34
Geliang Yang600.34
Kaixue Ma73819.01
Kiat Seng Yeo836563.72