Title :
A 5-6-GHz bipolar quadrature-phase Generator
Author :
Chung, Aichin ; Long, John R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Toronto, Ont., Canada
Abstract :
A wide-band fully monolithic quadrature-phase generator is implemented. It consists of a bipolar frequency doubler with differential outputs and a regenerative divider with 5 mVrms maximum sensitivity. Measured residual phase noise is <±0.5 dB for offsets between 100 Hz and 100 kHz in the 5-6-GHz band, limited by the resolution of the measurement equipment. An electronic phase tuning circuit controls the I/Q phase error to ±15° of tuning range with 0.033°/mV sensitivity. Unwanted harmonics are suppressed by over 40 dB within the working range of the multiplier. The test circuit occupies an active area of 0.26×0.11 mm2, and consumes 23 mW from a 2.7-V supply.
Keywords :
frequency multipliers; monolithic integrated circuits; quadrature phase shift keying; wireless LAN; 100 Hz; 2.7 V; 23 mW; 5 to 6 GHz; I/Q phase error; bipolar frequency doubler; bipolar quadrature-phase generator; differential outputs; electronic phase tuning circuit; frequency division; frequency multiplication; maximum sensitivity; measurement equipment; monolithic quadrature-phase generator; regenerative divider; regenerative quadrature divider; residual phase noise; wireless local-area networking; Band pass filters; Circuit optimization; Circuit testing; Energy consumption; Frequency conversion; Local area networks; Noise measurement; Phase measurement; Phase noise; Voltage-controlled oscillators; Frequency division; frequency multiplication; phase noise; quadrature phase generator; regenerative quadrature divider; wireless local-area networking;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2004.833755
