Fully monolithic SiGe voltage-controlled-oscillators for wireless phone application

Author

de Foucauld, E. ; Paillot, J.M. ; Duvanaud, C. ; Mokrani, H. ; Nallatamby, J.C. ; Prigent, M. ; Worner, K.

Author_Institution

Poitiers Univ., France

fYear

2000

fDate

28-28 April 2000

Firstpage

29

Lastpage

32

Abstract

Based on a Clapp structure with tuneable capacitor, two fully monolithic voltage-controlled-oscillators (VCO) have been designed using a 30 GHz Ft SiGe technology. The active element of the VCOs is a common emitter SiGe heterojunction bipolar transistor. The first VCO, which is able to provide a high output power, runs in the 1490-1520 MHz range. Its control voltage sensitivity is 14 MHz/V and its output power value is 9.5 dBm (in 50 /spl Omega/ load) for a 31 mA current consumption. The second one is a double band VCO: the proposed structure has been employed in conjunction with an integrated switch. The simulated results are given in the 867-901 and 927-957 MHz ranges.

Keywords

Ge-Si alloys; MMIC oscillators; UHF bipolar transistors; UHF integrated circuits; UHF oscillators; bipolar analogue integrated circuits; heterojunction bipolar transistors; mobile radio; semiconductor materials; voltage-controlled oscillators; 1490 to 1520 MHz; 30 GHz; 31 mA; 897 to 901 MHz; 927 to 957 MHz; Clapp structure; SiGe; active element; common emitter heterojunction bipolar transistor; control voltage sensitivity; current consumption; double band VCO; integrated switch; output power; output power value; tuneable capacitor; voltage-controlled-oscillators; wireless phone application; Capacitors; Circuits; Germanium silicon alloys; Heterojunction bipolar transistors; Inductors; Phase noise; Silicon germanium; Switches; Voltage control; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Silicon Monolithic Integrated Circuits in RF Systems, 2000. Digest of Papers. 2000 Topical Meeting on

Conference_Location

Garmisch, Germany

Print_ISBN

0-7803-6255-1

Type

conf

DOI

10.1109/SMIC.2000.844291

Filename

844291