Title :
InP based HBT millimeter-wave technology and circuit performance to 40 GHz
Author :
Kobayashi, K.W. ; Tran, L.T. ; Bui, S. ; Velebir, J. ; Nguyen, D. ; Oki, A.K. ; Streit, D.C.
Author_Institution :
TRW Electron. & Technol. Div., Redondo Beach, CA, USA
Abstract :
InP-based heterojunction bipolar transistor (HBT) millimeter-wave amplifiers and oscillators designed in a microstrip environment and working up to 40 GHz are discussed. A 20-40-GHz balanced high-intercept amplifier and a 30-GHz voltage-controlled oscillator (VCO) have been successfully fabricated and tested. These circuits benchmark the first InP HBT microstrip designs at K-a-band frequencies. The high-intercept amplifier achieves a gain of 5 dB and an IP3 of 20 dBm at 35 GHz. The monolithic VCO uses a base emitter varactor diode to tune as high as 9% bandwidth from a nominal oscillation frequency of 30 GHz. The output power is invariant of VCO tuning and is about +9.9 dBm+or-0.5 dBm. The collector efficiency is 21%. The total power dissipation is 77 mW. These demonstration circuits show the great potential of HBTs in millimeter-wave communication systems.<>
Keywords :
III-V semiconductors; MMIC; bipolar integrated circuits; heterojunction bipolar transistors; indium compounds; microstrip components; microwave amplifiers; microwave oscillators; tuning; variable-frequency oscillators; 20 to 40 GHz; 21 percent; 77 mW; HBT millimeter-wave technology; InP; K-a-band; MIMIC; MM-wave ICs; balanced high-intercept amplifier; base emitter varactor diode; circuit performance; heterojunction bipolar transistor; microstrip designs; monolithic VCO; tuning; Circuit optimization; Frequency; Heterojunction bipolar transistors; Indium phosphide; Microstrip; Millimeter wave circuits; Millimeter wave communication; Millimeter wave technology; Millimeter wave transistors; Voltage-controlled oscillators;
Conference_Titel :
Microwave and Millimeter-Wave Monolithic Circuits Symposium, 1993. Digest of Papers., IEEE 1993
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-1322-4
DOI :
10.1109/MCS.1993.247471
