Title :
A subharmonically-injected quadrature LO generator for 17GHz WLAN applications
Author :
Ma, Dennis K. ; Long, John R. ; Hararne, D.L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada
Abstract :
An injection-locked oscillator multiplies a 5-6 GHz input by 3 to generate I/Q LO signals for 17 GHz HiperLINK applications. Symmetrical injection via a polyphase prefilter minimizes I/Q errors. LC delay lines set the measured free-running frequency to 16.24 GHz with a locking range of 14.6-17.86 GHz for a 0 dBm (50 Ω) input. Input-to-output phase noise degradation is negligible, and I/Q amplitude and phase errors are <0.17 dB and <2°, respectively. Power consumption of the 1.2×1.4mm2 0.2 μm SiGe BiCMOS test chip (excluding buffers) is 22 mW at 2.2 V.
Keywords :
BiCMOS analogue integrated circuits; delay lines; frequency multipliers; injection locked oscillators; phase noise; transceivers; wireless LAN; 0.2 micron; 1.2 mm; 1.4 mm; 14.6 to 17.86 GHz; 16.24 GHz; 17 GHz; 2.2 V; 22 mW; 5 to 6 GHz; 50 ohm; BiCMOS; HiperLINK; I/Q LO signals; LC delay lines; SiGe; WLAN applications; WLAN transceivers; free-running frequency; frequency locking range; frequency multiplier; injection-locked oscillator; phase errors; phase noise; polyphase prefilter symmetrical injection; quadrature LO generator; subharmonically-injected LO generator; Degradation; Delay lines; Energy consumption; Frequency measurement; Germanium silicon alloys; Injection-locked oscillators; Phase noise; Signal generators; Silicon germanium; Wireless LAN;
Conference_Titel :
Custom Integrated Circuits Conference, 2003. Proceedings of the IEEE 2003
Print_ISBN :
0-7803-7842-3
DOI :
10.1109/CICC.2003.1249462
