Title :
A linearized low-voltage oscillator-mixer
Author :
Koivisto, Tero ; Tiiliharju, Esa
Author_Institution :
Microelectron. Lab., Univ. of Turku, Turku, Finland
Abstract :
In this paper, we propose a current bleeding oscillator-mixer. This circuit reuses the bleeding current, which relaxes mixer design trade-offs noise, linearity and gain at low supply voltages, by replacing the bleed current source as an oscillator. The linearized merged oscillator-mixer achieves a 8 dB gain, -3 dBV IIP3 and 6.2 dB white noise figure at the 7 GHz frequency. The phase-noise of the oscillator is -98 dBc/Hz at the 1 MHz offset from the 7Ghz LO frequency. The combined circuit consumes 5 mA from a 1.2 V supply.
Keywords :
CMOS integrated circuits; MMIC mixers; MMIC oscillators; low-power electronics; phase noise; CMOS design; MMIC mixers; MMIC oscillators; current 5 mA; current bleeding oscillator-mixer; current reuse; frequency 7 GHz; linearized merged oscillator-mixer; noise figure 6.2 dB; phase noise; voltage 1.2 V; Bandwidth; Circuits; Laboratories; Linearity; Microelectronics; Noise measurement; Radio frequency; Stacking; Transmitters; Voltage-controlled oscillators;
Conference_Titel :
SOC Conference, 2009. SOCC 2009. IEEE International
Conference_Location :
Belfast
Print_ISBN :
978-1-4244-4940-8
Electronic_ISBN :
978-1-4244-4941-5
DOI :
10.1109/SOCCON.2009.5398075
