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A CMOS wideband low-noise amplifier (LNA) with an integrated bandpass feedback stage for achieving blocker cancellation is described. The proposed blocker cancellation technique involves the use of an integrated tunable bandpass feedback stage to produce a notch for the blocker, eliminating the need for an off-chip SAW filter. The prototype LNA is fabricated in a 0.13 µm CMOS process. The LNA with the bandpass feedback stage achieves a blocker rejection of 37 dB, and it draws a current of 20.6 mA from a 1.2 V power supply.
References
-
-
1)
-
V. Aparin ,
L. Larson
.
Analysis and reduction of cross-modulation distortion in CDMA receivers.
IEEE Trans. Microw. Theory Tech.
,
5 ,
1591 -
1602
-
2)
-
F. Bruccoleri ,
E.M. Klumperink ,
B. Nauta
.
Wide-band CMOS low-noise amplifier exploiting thermal noise canceling.
IEEE J. Solid-State Circuits
,
2 ,
275 -
282
-
3)
-
Bormann, D., Werth, T.D., Schmits, C., Heinen, M.S.: `A 1.3V, 65nm CMOS, coilless combined feedback LNA with integrated single coil notch filter', IEEE Radio Frequency Integrated Circuits Symp., 2009, Boston, MA, USA, p. 311–314.
-
4)
-
Safarian, A., Shameli, A., Rofougaran, A., Rofougaran, M., Flaviis, F.D.: `Integrated blocker filtering RF front ends', IEEE Radio Frequency Integrated Circuits Symp., 2007, Honolulu, HI, USA, p. 13–16.
http://iet.metastore.ingenta.com/content/journals/10.1049/el.2012.1619
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