Performance Measurement of Compact and High-Range Resolution 76GHz Millimeter-Wave Radar System for Autonomous Unmanned Helicopters

Futatsumori, Shunichi; Kohmura, Akiko; Yonemoto, Naruto

doi:10.1587/transele.e96.c.586

Cited by 15 publications

(12 citation statements)

References 6 publications

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“…The IEEE 802.11ad standard is subject to investigation as possible vehicular communications standard [21] and for joint radar-communications [22]. CFRP reflectors are applicable at millimeter wavelengths, as demonstrated in [23], where a parabolic millimeter wave reflector is built from UD-CFRP as part of an autonomous unmanned helicopter's radar system [24]. The gain of the CFRP reflector antenna is found to be close to that of a chrome plated version at 96 GHz [23].…”

Section: Related and Prior Workmentioning

confidence: 99%

Carbon Fiber Reinforced Polymer With Isotropic 60 GHZ Reflectivity

Zöchmann¹,

Artner²,

Pratschner³

et al. 2018

PIER M

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Abstract-Carbon fiber reinforced polymer (CFRP) is measured as reflector material for millimeter waves at 60 GHz. Reflectivity is measured to characterize material anisotropy in a mono-static setup. Disc shaped material samples are rotated in steps of one degree. Four commonly employed CFRP are investigated: unidirectional fibers, plain-weave, twill-weave and fiber shreds. Results show that the unidirectional CFRP and twill-weave CFRP are anisotropic, while the remaining materials are isotropic within measurement accuracy.

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Section: Related and Prior Workmentioning

confidence: 99%

Carbon Fiber Reinforced Polymer With Isotropic 60 GHZ Reflectivity

Zöchmann¹,

Artner²,

Pratschner³

et al. 2018

PIER M

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“…To support the pilots, some detection and warning system have been discussed so far [3], [4]. We have been developed collision avoidance forward looking low-transmitting power 76 GHz millimeterwave radar [5], [6]. This is because the millimeter-wave radar enables a high-range resolution, a small volume, and weather robustness.…”

Section: Introductionmentioning

confidence: 99%

Investigation of circular polarization for 76 GHz helicopter collision avoidance radar to improve detection performance of high-voltage power lines

Futatsumori

Amielh

Morioka

et al. 2017

2017 European Radar Conference (EURAD)

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To improve the detection conditions of the highvoltage power lines using the 76 GHz low-transmitting power helicopter collision avoidance forward looking millimeter-wave radar, the characteristics of the circular polarization is experimentally investigated. Firstly, the specifications and the operating parameters of developed circular polarized 76 GHz is discussed. Then, the radar receiving module with the W-band low noise amplifier and the low loss waveguide to microstrip line transitions enables 12 dB receiving noise figure. Finally, the ground power line detection test is carried out to compare the circular polarization and vertical polarization, which are commonly used to detect the power lines. The results confirm the almost 10 dB increase of the reflection signal of the power lines.

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“…In terms of highsensitivity, high range resolution and weather robustness, millimeter-wave radar is a key device to detect such FODs. We have been developing the W-band millimeter-wave radar for FOD detection and other civil aviation applications [2], [3]. This paper discusses an evaluation of the fan beam offset parabolic reflector antennas using carbon fiber reinforced plastics (CFRP).…”

Section: Introductionmentioning

confidence: 99%

“…The size of the CFRP parabolic reflectors is 327 mm × 300 mm (height × width). The characteristics of the 200 mm width CFRP offset parabolic reflector have been obtained so far [2]. To achieve an antenna gain of more than 40 dBi at 96 GHz, while maintaining the fan beam characteristics of elevation radiation patterns, the volume of the antenna is increased.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of fan beam carbon fiber reinforce plastics offset parabolic reflector antenna for W-band millimeter-wave radar systems

Futatsumori

Morioka

Kohmura

et al. 2014

2014 International Symposium on Antennas and Propagation Conference Proceedings

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This paper discusses an evaluation of a fan beam carbon fiber reinforce plastics (CFRP) offset parabolic reflector antenna for W-band millimeter-wave radar systems. For the radar applications with mechanical azimuth scanning systems, it is required to achieve a narrow azimuth radiation pattern, as well as a relatively wide elevation pattern. Firstly, the CFRP parabolic reflector, which has the aperture size of 327 mm × 300 mm, is fabricated using 1K woven fabrics. Next, the maximum gain and radiation pattern are measured between 75 GHz and 110 GHz. Finally, the CFRP parabolic reflector with the 15.0 mm-diameter conical horn feeding confirms elevation fan beam characteristics and a gain of almost 40 dBi at 96 GHz.Index Terms -Foreign object debris detection, Millimeterwave radar, parabolic reflector antenna, W-band.

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Performance Measurement of Compact and High-Range Resolution 76GHz Millimeter-Wave Radar System for Autonomous Unmanned Helicopters

Cited by 15 publications

References 6 publications

Carbon Fiber Reinforced Polymer With Isotropic 60 GHZ Reflectivity

Carbon Fiber Reinforced Polymer With Isotropic 60 GHZ Reflectivity

Investigation of circular polarization for 76 GHz helicopter collision avoidance radar to improve detection performance of high-voltage power lines

Evaluation of fan beam carbon fiber reinforce plastics offset parabolic reflector antenna for W-band millimeter-wave radar systems

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