Compact InP-based HBT VCOs with a wide tuning range at W- and D-band

Author

Baeyens, Yves ; Dorschky, Claus ; Weimann, Nils ; Lee, Qinghung ; Kopf, Rose ; Georgiou, George ; Mattia, John-Paul ; Hamm, Robert ; Chen, Young-Kai

Author_Institution

Lucent Technol. Bell Lab., Murray Mill, NJ, USA

Volume

48

Issue

12

fYear

2000

fDate

12/1/2000 12:00:00 AM

Firstpage

2403

Lastpage

2408

Abstract

Compact monolithic integrated differential voltage-controlled oscillators (VCOs) operating in W-band were realized using InP-based heterojunction bipolar transistors (HBTs). The oscillators, with a total chip size of 0.6 by 0.35 mm², are based on a balanced Colpitts-type topology with a coplanar transmission-line resonator. By varying the voltage across the base-collector junction of the HBT in the current mirror and by changing the current in the VCO, the oscillation frequency can be tuned between 84 and 106 GHz. At 100 GHz, a differential voltage swing of 400 mV is obtained, which should be sufficient to drive 100 Gb/s digital logic. By combining the balanced outputs of a similar differential VCO in a push-push configuration, a compact source with close to -10 dBm output power and a tuning range between 138 and 150 GHz is obtained

Keywords

III-V semiconductors; MMIC oscillators; bipolar MIMIC; circuit tuning; heterojunction bipolar transistors; indium compounds; integrated circuit design; millimetre wave oscillators; voltage-controlled oscillators; 138 to 150 GHz; 84 to 106 GHz; D-band; EHF; InP; InP-based HBT VCOs; MM-wave VCO; W-band; balanced Colpitts-type topology; compact HBT VCOs; compact MM-wave source; coplanar transmission-line resonator; current mirror; heterojunction bipolar transistors; monolithic integrated differential VCO; oscillation frequency tuning; push-push configuration; voltage-controlled oscillators; wide tuning range; Frequency; Heterojunction bipolar transistors; Logic; Mirrors; Power generation; Topology; Transmission lines; Tuning; Voltage; Voltage-controlled oscillators;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.898990

Filename

898990