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2007
Conference Paper
Titel
A PLL-stabilized W-band MHEMT push-push VCO with integrated frequency divider circuit
Alternative
Ein PLL-stabilisierter W-Band MHEMT Push-Push VCO mit integriertem Frequenzteilerschaltkreis
Abstract
In this paper, a PLL-based stabilization technique for monolithic integrated W-band voltage controlled oscillators (VCOs) is presented. A 92 GHz push-push oscillator in coplanar waveguide technology and a frequency divider by eight were developed and integrated on a single MMIC using our established 100 nm metamorphic HEMT technology. The oscillator achieves a tuning range of 3.4 GHz around the center frequency of 92 GHz and an output power of more than 5.5 dBm. By applying this concept, the VCO was synchronized to a low frequency reference signal at 180 MHz using a commercially available PLL circuit. Compared to the free running oscillator, the phase-noise was improved by 24 dB to 77 dBc/Hz at 100 kHz offset from the carrier.
Author(s)
Tags
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frequency divider
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Frequenzteiler
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metamorphic high electron mobility transistor
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metamorpher Transistor mit hoher Elektronenbeweglichkeit
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phased locked loop
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PLL
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Phasenregelschleife (PLL)
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push-push oscillator
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Push-Push-Oszillator
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voltage controlled oscillator
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spannungsgesteuerter Oszillator
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VCO
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W-Band
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coplanar waveguide
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koplanare Wellenleiter