Low-cost GaAs pHEMT MMIC's for millimeter-wave sensor applications

Siweris, H.J.; Werthof, A.; Tischer, H.; Schaper, U.; Schäfer, Armin; Verweyen, L.; Grave, T.; Böck, Georg; Schlechtweg, M.; Kellner, W.

doi:10.1109/22.739248

Cited by 41 publications

(7 citation statements)

References 8 publications

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“…Especially, in homodyne FMCW radars, the mixers have a great influence on the overall receiver NF at low IF less than 1 MHz, because of the flicker noise of the semi‐conductor devices. Therefore, mixers should be designed to have low NF especially at low IF in consideration of the flicker noise .…”

Section: Introductionmentioning

confidence: 99%

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Low‐IF noise characteristics of W‐band resistive and diode mixers

Lee

Kwon

et al. 2016

Micro & Optical Tech Letters

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In this letter, W‐band mixers (resistive and diode mixers) are designed using a 0.15 μm GaAs pseudo‐morphic high electron mobility transistor process for frequency‐modulated continuous wave radars. The measurement shows that both mixers can achieve a good conversion gain of −9 dB with high linearity performance. In addition, noise figures (NFs) of both mixers are measured especially at low intermediate frequency (IF) using a gain method. The resistive mixer exhibits 10.3–11.2 dB lower NF than the diode mixer at low IF from 100 kHz to 1 MHz. This result is also supported by the measurement of the flicker noise of HEMT and diode at each operating bias condition. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:275–278, 2017

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Section: Introductionmentioning

confidence: 99%

“…Passive mixers such as resistive or diode mixers are widely used for FMCW radars, because they can present a linear performance with a little power consumption . They exhibit similar conversion gain (CG), but relatively higher local oscillator (LO) power is required for the diode mixers.…”

Section: Introductionmentioning

confidence: 99%

Low‐IF noise characteristics of W‐band resistive and diode mixers

Lee

Kwon

et al. 2016

Micro & Optical Tech Letters

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“…Recently the ITS (Intelligent Transportation System) group proposed the deployment of Xband FMCW sensor for detection of vehicle volume, occupancy, speed, and classifications of multi-lane highway transportation system. Although most of FMCW-based sensors known to date had been made by the hybrid microwave/millimeter-wave integrated circuits [5], literature survey indicated that a handful of FMCW chips were reported, namely, 94 GHz radar [1,3,4], 77 GHz sensor [6,7], 10 GHz radar [8], 4.8 GHz Doppler sensor [2], all made by GaAs MMIC (monolithic microwave/millimeter-wave integrated circuit) technology. To authors' best knowledge, we present the first CMOS multifunction chip for use in RF front-end of the FMCW-based sensor or radar.…”

Section: Introductionmentioning

confidence: 99%

An X-Band CMOS Multifunction-Chip FMCW Radar

Tzuang

Chang

et al. 2006

2006 IEEE MTT-S International Microwave Symposium Digest

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A fully integrated, miniaturized, low-power frequency-modulated continuous wave (FMCW) multifunction chip realized by typical 1P6M 0.18 gm deep n-well CMOS technology is presented for the first time. The multifunction chip consists of VCO, buffer amplifier, 3-dB power divider, isolators, driving amplifiers, mixer, low-noise amplifier, attenuator, etc., necessary for carrying out the X-band RF signal processing of the FMCW signals interfaced to dual antenna arrays. The chip real estate measures 2.4 mm by 1.3 mm. The entire FMCW chip design is based on the synthetic complementary-conductingstrips (CCS) quasi-TEM transmission line. The transmitter output is 3.5 dBm for frequencies between 9.5-11.0 GHz and maximum tuning bandwidth is nearly 150 MHz. The receiver channel has conversion gain of 6 dB. The calculated range is in good agreement with the measurement data.

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“…The main application in the 77 GHz frequency range is automotive radar from 76 GHz to 77 GHz. Several building blocks have been published in III-V technology [5], [6]. Also front ends [7] or complete systems [8] in these technologies are available.…”

Section: Introductionmentioning

confidence: 99%