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Coupled eighth-mode substrate integrated waveguide antenna: small and wideband with high-body antenna isolation

Sam Agneessens (UGent)
(2018) IEEE ACCESS. 6. p.1595-1602
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Abstract
A novel antenna design for wideband operation is presented, consisting of a system of two coupled miniaturized eighth-mode resonant radiating cavities with a low-complexity feeding network. The design methodology relies on the virtual magnetic boundaries along the symmetry planes of a rectangular waveguide resonator, for size reduction, and the frequency bifurcation of two tightly coupled resonators, for bandwidth enhancement. After discussing its operating principle, a prototype targeting wearable applications is designed, manufactured, and validated. Multiband operation is achieved with simultaneous coverage of the 2.4-GHz ISM band and the LTE-7 up- and downlink-bands. Measurements in free-space and on-body scenarios validate the antenna's performance. A bandwidth of 414 MHz (16.2%) is measured, as well as a maximal gain of 4.7 dBi. The directive patch-like radiation pattern and the ground plane topology lead to high body-antenna isolation and good on-body performance. Impedance bandwidth and radiation pattern remain stable when the antenna is worn by a person and bent around a cylinder to mimic deformation.
Keywords
Antennas, substrate integrated waveguide (SIW), wearable antenna, textile antenna, half-mode substrate integrated waveguide (HMSIW), eighth-mode substrate integrated waveguide (EMSIW), electrically small antenna, wideband antenna

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Citation

Please use this url to cite or link to this publication:

Chicago
Agneessens, Sam. 2018. “Coupled Eighth-mode Substrate Integrated Waveguide Antenna: Small and Wideband with High-body Antenna Isolation.” Ieee Access 6: 1595–1602.
APA
Agneessens, S. (2018). Coupled eighth-mode substrate integrated waveguide antenna: small and wideband with high-body antenna isolation. IEEE ACCESS, 6, 1595–1602.
Vancouver
1.
Agneessens S. Coupled eighth-mode substrate integrated waveguide antenna: small and wideband with high-body antenna isolation. IEEE ACCESS. 2018;6:1595–602.
MLA
Agneessens, Sam. “Coupled Eighth-mode Substrate Integrated Waveguide Antenna: Small and Wideband with High-body Antenna Isolation.” IEEE ACCESS 6 (2018): 1595–1602. Print.
@article{8555840,
  abstract     = {A novel antenna design for wideband operation is presented, consisting of a system of two coupled miniaturized eighth-mode resonant radiating cavities with a low-complexity feeding network. The design methodology relies on the virtual magnetic boundaries along the symmetry planes of a rectangular waveguide resonator, for size reduction, and the frequency bifurcation of two tightly coupled resonators, for bandwidth enhancement. After discussing its operating principle, a prototype targeting wearable applications is designed, manufactured, and validated. Multiband operation is achieved with simultaneous coverage of the 2.4-GHz ISM band and the LTE-7 up- and downlink-bands. Measurements in free-space and on-body scenarios validate the antenna's performance. A bandwidth of 414 MHz (16.2\%) is measured, as well as a maximal gain of 4.7 dBi. The directive patch-like radiation pattern and the ground plane topology lead to high body-antenna isolation and good on-body performance. Impedance bandwidth and radiation pattern remain stable when the antenna is worn by a person and bent around a cylinder to mimic deformation.},
  author       = {Agneessens, Sam},
  issn         = {2169-3536},
  journal      = {IEEE ACCESS},
  keyword      = {Antennas,substrate integrated waveguide (SIW),wearable antenna,textile antenna,half-mode substrate integrated waveguide (HMSIW),eighth-mode substrate integrated waveguide (EMSIW),electrically small antenna,wideband antenna},
  language     = {eng},
  pages        = {1595--1602},
  title        = {Coupled eighth-mode substrate integrated waveguide antenna: small and wideband with high-body antenna isolation},
  url          = {http://dx.doi.org/10.1109/ACCESS.2017.2779563},
  volume       = {6},
  year         = {2018},
}

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