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Active single ended frequency multiplier-by-nine MMIC for millimeter-wave imaging applications | IEEE Conference Publication | IEEE Xplore

Active single ended frequency multiplier-by-nine MMIC for millimeter-wave imaging applications

Publisher: IEEE

Abstract:

An active frequency multiplier-by-nine MMIC with integrated buffer amplifier reaching 94 GHz from X-band is presented. The multiplier-by-nine generates an average output ...View more

Abstract:

An active frequency multiplier-by-nine MMIC with integrated buffer amplifier reaching 94 GHz from X-band is presented. The multiplier-by-nine generates an average output power of -7.7 dBm in the frequency range from 82 to 102 GHz. At 94 GHz the measured output power is -6.4 dBm with an input power of 10 dBm. The suppression of unwanted harmonics is better than 23 dBc. The comparison to the simulated results shows the performance of the underlying large-signal mHEMT models. The MMIC is realized in metamorphic HEMT technology with 100 nm gate-length.
Date of Conference: 18-19 April 2011
Date Added to IEEE Xplore: 23 May 2011
ISBN Information:
Publisher: IEEE
Conference Location: Vienna, Austria

I. Introduction

Modern millimeter-wave imaging systems [1] need ultra fast tunable, compact and cost effective signal sources. The use of high operational frequencies and fast frequency tuning is resulting in higher image resolution and improved system performance. The realization of high frequency sources by a phase locked voltage controlled oscillator (VCO) becomes more difficult with increasing frequency. A combination of both, a multiplier chain and a low frequency source can solve this problem. Frequency multiplier chains convert fast tunable and high quality low frequency signals into the millimeterwave frequency range.

References

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