10 and 26 GHz differential VCOs using InP HBTs

10 and 26 GHz differential VCOs using InP HBTs

We have built 10 and 26 GHz differential VCOs using InP HBTs. Both oscillators use a 3 stage emitter coupled pair ring section. The 10 GHz VCO is connected in the well known fashion but the 26 GHz circuit uses a patented summed output from each of the three ECP (Emitter Coupled Pair) stages. The cir...

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Bibliographische Detailangaben
Hauptverfasser: Montgomery, R.K., Humphrey, D.A., Hamm, R., Ren, F., Malik, R.J., Kopf, R.F., Tate, A., Smith, P.R., Ryan, R.W., Lin, J., Chen, Y.K.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Coupling circuits
Frequency estimation
Gallium arsenide
Heterojunction bipolar transistors
Indium phosphide
Phase noise
Ring oscillators
Tin
Voltage
Voltage-controlled oscillators
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Beschreibung
Zusammenfassung:We have built 10 and 26 GHz differential VCOs using InP HBTs. Both oscillators use a 3 stage emitter coupled pair ring section. The 10 GHz VCO is connected in the well known fashion but the 26 GHz circuit uses a patented summed output from each of the three ECP (Emitter Coupled Pair) stages. The circuits are powered from a single 5 V supply consuming 250 mW. The chip size is 870/spl times/975 /spl mu/m/sup 2/. The phase noise at a 100 kHz offset for the 10 and 26 GHz oscillators is 83 dBc/Hz and -70 dBc/Hz respectively.
ISSN:0149-645X
2576-7216
DOI:10.1109/MWSYM.1996.512222