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An integrated SiGe transmitter circuit for 24 GHz radar sensors

The design of an integrated transmitter circuit is described, which operates in the 24 GHz band. The circuit is comprised of a VCO, which delivers 18 mW power at 50 ohm, a frequency divider chain and an additional RF output to drive the LO-input of a receiver chip in a 24 GHz FM-CW radar system. SiG...

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Main Authors:	Wennekers, P., Ghazionour, A., Reuter, R.
Format:	Conference Proceeding
Language:	English
Subjects:	Applied sciences Circuit properties Circuits Dielectrics Electric, optical and optoelectronic circuits Electronic circuits Electronics Exact sciences and technology Frequency conversion Germanium silicon alloys Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits Oscillators, resonators, synthetizers Production Radar Radio frequency Silicon germanium Transmitters Voltage-controlled oscillators
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creator	Wennekers, P. Ghazionour, A. Reuter, R.
description	The design of an integrated transmitter circuit is described, which operates in the 24 GHz band. The circuit is comprised of a VCO, which delivers 18 mW power at 50 ohm, a frequency divider chain and an additional RF output to drive the LO-input of a receiver chip in a 24 GHz FM-CW radar system. SiGe-HBTs with typical F/sub t/=48 GHz/F/sub max/=80 GHz and V/sub CEO/ >3.2 V of a production SiGe-BiCMOS process are used as active devices. All resonators and matching circuits are implemented on chip by using the 4-layer dielectric/metal (AlCu) stack of the process.
doi_str_mv	10.1109/BIPOL.2002.1042920
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source	IEEE Xplore All Conference Series
subjects	Applied sciences Circuit properties Circuits Dielectrics Electric, optical and optoelectronic circuits Electronic circuits Electronics Exact sciences and technology Frequency conversion Germanium silicon alloys Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits Oscillators, resonators, synthetizers Production Radar Radio frequency Silicon germanium Transmitters Voltage-controlled oscillators
title	An integrated SiGe transmitter circuit for 24 GHz radar sensors
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