Title :
Differential InP-HBT current controlled LC-oscillators with centre frequencies of 43 and 67 GHz
Author :
Schwarz, V. ; Morf, T. ; Huber, A. ; Jäckel, H. ; Benedickter, H.-R.
Author_Institution :
Electron. Lab., Swiss Fed. Inst. of Technol., Zurich, Switzerland
fDate :
7/8/1999 12:00:00 AM
Abstract :
An LC-tuned differential current controlled oscillator (CCO) with a centre frequency of 43 GHz and a tuning range of 1 GHz is reported. The phase noise is -90 to -100 dBc at 1 MHz offset and the output power is -3.5 to -9.5 dBm at 50 Ω. The phase difference of the output signals was measured to be 180°. A second type of oscillator had a centre frequency of 67 GHz. To date, these two oscillators have the highest frequencies yet reported for differential current or voltage controlled oscillators
Keywords :
circuit tuning; heterojunction bipolar transistors; indium compounds; millimetre wave circuits; millimetre wave oscillators; phase noise; variable-frequency oscillators; 43 GHz; 67 GHz; InP; LC-tuned oscillator; differential HBT current controlled LC-oscillators; output power; phase difference; phase noise; tuning range;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19990785
