Title :
A 43 GHz Differential VCO in HBT Technology
Author :
Sion, A. ; Camiade, M. ; Cortese, P.
Author_Institution :
UMS S.A.S., RD 128, BP 46, 91401 ORSAY CEDEX, France. tel: + 0033 169330627, Fax: 0033 169330552, E-mail: arnaud.sion@ums-gaas.com
Abstract :
The design and the measurements of a Ka-band HBT-based Voltage Controlled Oscillator (VCO) are reported. This VCO is fully integrated in MMIC technology, and is based on a balanced oscillator topology. The circuit is covering 3GHz tuning range around a centre frequency of 43.5GHz with a phase noise of ¿80 dBc/Hz at 100 KHz offset. Then this concept is applied to a VCO for automotive radar application. This VCO is composed of a balanced oscillator at 12.75GHz and of a frequency tripler. The measurements of the circuits show a phase noise of ¿93 dBc/Hz at 12.75 GHz at 100 KHz offset, a centre frequency of 37.2 GHz with a tuning range up to 8 GHz.
Keywords :
Automotive engineering; Circuit optimization; Circuit topology; Frequency; Heterojunction bipolar transistors; Integrated circuit measurements; Integrated circuit technology; MMICs; Phase noise; Voltage-controlled oscillators;
Conference_Titel :
Microwave Conference, 2002. 32nd European
Conference_Location :
Milan, Italy
DOI :
10.1109/EUMA.2002.339320
