Concealed CFRP Vehicle Chassis Antenna Cavity

Artner, Gerald; Langwieser, Robert; Mecklenbräuker, Christoph F.

doi:10.1109/lawp.2016.2637560

Cited by 38 publications

(29 citation statements)

References 13 publications

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“…With the development of wireless communication services, the number of antennas required in automobiles has increased. Shark‐fin antennas have been designed intensively by considering the appearance of the car . However, the shark‐fin antennas have problems related to low reception sensitivity and radiation interference within a limited space.…”

Section: Introductionmentioning

confidence: 99%

“…However, the shark‐fin antennas have problems related to low reception sensitivity and radiation interference within a limited space. To solve these problems, various types of antennas have been designed that can be installed at different locations of the automobile, for example, in a tiny cavity on the roof of the vehicle and on the bumper . In this research, we propose a transparent antenna on the automotive rear glass using a micro‐metal mesh film (μ‐MMF), which can increase isolation with other antennas and minimize visual perception.…”

Section: Introductionmentioning

confidence: 99%

“…Shark-fin antennas have been designed intensively by considering the appearance of the car. 1 However, the shark-fin antennas have problems related to low reception sensitivity and radiation interference within a limited space. To solve these problems, various types of antennas have been designed that can be installed at different locations of the automobile, for example, in a tiny cavity on the roof of the vehicle 1 and on the bumper.…”

Section: Introductionmentioning

confidence: 99%

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Transparent dual‐band monopole antenna using a μ‐metal mesh on the rear glass of an automobile for frequency modulation/digital media broadcasting service receiving

Lee

Lee²,

Kim³

et al. 2018

Micro & Optical Tech Letters

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A transparent dual‐band monopole (Inverted‐F) antenna using a micro‐metal mesh film (μ‐MMF) designed on the rear glass of an automobile (Hyundai K5) is presented. This design allows the optically transparent antenna to be installed in a wider space, thus overcoming the space limitation typically posed by roof‐mounted shark‐fin antennas. It can also reasonably solve the problem of low reception sensitivity and radiation interference from antennas operating in other service bands. The antenna is a combination of two simple monopoles operating in the frequency modulation (FM) (88–108 MHz) and the digital media broadcasting (DMB) (174–216 MHz) service bands. Measured reflection coefficients (S11) of the transparent antenna using μ‐MMF are under −6 dB (VSWR 3:1) in both the bands, and the radiation pattern shows directive patterns to the outward direction from the car; the average peak gains in the XY plane are 1.1 dB in the FM service band and 8.8 dB in the DMB service band.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Transparent dual‐band monopole antenna using a μ‐metal mesh on the rear glass of an automobile for frequency modulation/digital media broadcasting service receiving

Lee

Lee²,

Kim³

et al. 2018

Micro & Optical Tech Letters

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“…Antennas are built from CFRP [1,2], but more commonly large CFRP parts are applied as antenna ground planes [3][4][5][6][7], reflectors [8] or panels for slot antennas [9][10][11]. Airplanes, boats, car chassis and sports equipment are today built with CFRP.…”

Section: Introductionmentioning

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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“…An antenna cavity for integration into CFRP sheets, such as aircraft skin panels or car chassis, is proposed and prototyped in [27]. In vehicular applications the antenna cavity can be manufactured as part of a carbon fiber reinforced car roof as is described in [28].…”

Section: Introductionmentioning

confidence: 99%

Carbon Fiber Reinforced Polymer with Shredded Fibers: Quasi-Isotropic Material Properties and Antenna Performance

Artner

Gentner

Nicolics

et al. 2017

International Journal of Antennas and Propagation

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A carbon fiber reinforced polymer (CFRP) laminate, with the top layer consisting of shredded fibers, is proposed and manufactured. The shredded fibers are aligned randomly on the surface to achieve a more isotropic conductivity, as is desired in antenna applications. Moreover, fiber shreds can be recycled from carbon fiber composites. Conductivity, permittivity, and permeability are obtained with the Nicolson-Ross-Weir method from material samples measured inside rectangular waveguides in the frequency range of 4 to 6 GHz. The decrease in material anisotropy results in negligible influence on antennas. This is shown by measuring the proposed CFRP as ground plane material for both a narrowband wire monopole antenna for 5.9 GHz and an ultrawideband conical monopole antenna for 1-10 GHz. For comparison, all measurements are repeated with a twill-weave CFRP.

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Concealed CFRP Vehicle Chassis Antenna Cavity

Cited by 38 publications

References 13 publications

Transparent dual‐band monopole antenna using a μ‐metal mesh on the rear glass of an automobile for frequency modulation/digital media broadcasting service receiving

Transparent dual‐band monopole antenna using a μ‐metal mesh on the rear glass of an automobile for frequency modulation/digital media broadcasting service receiving

Carbon Fiber Reinforced Polymer With Isotropic 60 GHZ Reflectivity

Carbon Fiber Reinforced Polymer with Shredded Fibers: Quasi-Isotropic Material Properties and Antenna Performance

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