Title :
Injection-locked superharmonic self-oscillating mixer
Author :
Koivisto, Tero ; Tiiliharju, Esa ; Virta, Peter
Author_Institution :
BID Technol., Univ. of Turku, Turku, Finland
Abstract :
This paper presents an self-oscillating mixer (SOM) circuit using a superharmonic injection-locking technique. In this topology, the superharmonic injection-locked oscillator (ILO) is used as a frequency divide-by-two circuit. The prototype circuit is implemented using 65 nm CMOS technology. The experimental results exhibit a minimum noise figure (NF) of 5.6 dB, a gain of 14.5 dB, input P1dB of -11 dBm and a phase-noise of -125 dBc/Hz at the 300 kHz offset frequency from the 4.1 GHz local oscillator (LO) frequency. The circuit draws 4 mA from a 1.2-supply voltage.
Keywords :
CMOS integrated circuits; injection locked oscillators; mixers (circuits); network topology; phase noise; CMOS technology; frequency 300 kHz; frequency 4.1 GHz; frequency divide-by-two circuit; injection-locked superharmonic selfoscillating mixer circuit; local oscillator frequency; minimum noise figure; phase noise; size 65 nm; superharmonic injection-locked oscillator; superharmonic injection-locking technique; CMOS integrated circuits; CMOS technology; Mixers; Noise measurement; Oscillators; Radio frequency; Transistors;
Conference_Titel :
NORCHIP, 2011
Conference_Location :
Lund
Print_ISBN :
978-1-4577-0514-4
Electronic_ISBN :
978-1-4577-0515-1
DOI :
10.1109/NORCHP.2011.6126727
