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Monolithically Integrated SiGe Push-Push Oscillators in the Frequency Range 50-190 GHz

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3 Author(s)
Wanner, R. ; Lehrstuhl fuer Hochfrequenztechnik Arcisstrasse, Tech. Univ. Muenchen ; Lachner, R. ; Olbrich, G.R.

In this paper we present several monolithically integrated push-push oscillators in the frequency range from 47 GHz to 190 GHz. The MMICs are fabricated in a production near SiGe:C bipolar technology developed by Infineon Technologies AG. The transistors show a maximum transit frequency of fT=200 GHz and a maximum frequency of oscillation fmax=275 GHz. The passive circuitry is realized using integrated transmission-line components, integrated spiral inductors, MIM-capacitors and TaN resistors. The frequency of the output signal of the oscillators can be tuned either by varying the bias voltage of the whole oscillator circuit or using the capacitance variation of a base collector junction as a tuning varactor. Some of the oscillators show excellent phase noise behavior, especially the 190 GHz oscillator gives a world record in output power and phase noise for HBT-oscillators

Published in:

Spread Spectrum Techniques and Applications, 2006 IEEE Ninth International Symposium on

Date of Conference:

28-31 Aug. 2006

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