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Roof-glass integrated microstrip antenna for vehicular SDARS applications

Li, Xiaotian ; Aliakbari Abar, Hanieh LU orcid ; Lötbäck, Christian and Lau, Buon Kiong LU orcid (2026) 20th European Conference on Antennas and Propagation (EuCAP) 2026
Abstract
In this paper, we propose the design of a roof-glass integrated microstrip antenna for vehicular SDARS tuners. The proposed microstrip antenna is sandwiched inside a multi-layer roof glass and uses a solar-heat reduction coating on the bottom side of the glass as ground plane. To offset the effect of the lossy glass, parasitic elements are added to enhance the antenna gain. Simulation results show that the microstrip antenna loaded with 3 × 3 parasitic elements achieves a boresight LHCP gain of 4.3 dBiC with a 3-dB beamwidth of 81.7° at the centre of the SDARS band. Moreover, full-car simulations reveal that the car body degrades the axial ratio performance of this antenna, but does not affect its LHCP gain performance. However, the... (More)
In this paper, we propose the design of a roof-glass integrated microstrip antenna for vehicular SDARS tuners. The proposed microstrip antenna is sandwiched inside a multi-layer roof glass and uses a solar-heat reduction coating on the bottom side of the glass as ground plane. To offset the effect of the lossy glass, parasitic elements are added to enhance the antenna gain. Simulation results show that the microstrip antenna loaded with 3 × 3 parasitic elements achieves a boresight LHCP gain of 4.3 dBiC with a 3-dB beamwidth of 81.7° at the centre of the SDARS band. Moreover, full-car simulations reveal that the car body degrades the axial ratio performance of this antenna, but does not affect its LHCP gain performance. However, the antenna performance is stable over different antenna positions on the car roof. (Less)
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author
; ; and
organization
publishing date
type
Contribution to conference
publication status
submitted
subject
pages
5 pages
conference name
20th European Conference on Antennas and Propagation (EuCAP) 2026
conference location
Dublin, Ireland
conference dates
2026-04-19 - 2026-04-24
project
Glass-integrated Vehicular Antenna Systems
language
English
LU publication?
yes
id
aaf7d19e-ac89-4142-a923-be48a3d65ea9
date added to LUP
2026-04-16 11:17:52
date last changed
2026-05-21 14:49:53
@misc{aaf7d19e-ac89-4142-a923-be48a3d65ea9,
  abstract     = {{In this paper, we propose the design of a roof-glass integrated microstrip antenna for vehicular SDARS tuners. The proposed microstrip antenna is sandwiched inside a multi-layer roof glass and uses a solar-heat reduction coating on the bottom side of the glass as ground plane. To offset the effect of the lossy glass, parasitic elements are added to enhance the antenna gain. Simulation results show that the microstrip antenna loaded with 3 × 3 parasitic elements achieves a boresight LHCP gain of 4.3 dBiC with a 3-dB beamwidth of 81.7° at the centre of the SDARS band. Moreover, full-car simulations reveal that the car body degrades the axial ratio performance of this antenna, but does not affect its LHCP gain performance. However, the antenna performance is stable over different antenna positions on the car roof.}},
  author       = {{Li, Xiaotian and Aliakbari Abar, Hanieh and Lötbäck, Christian and Lau, Buon Kiong}},
  language     = {{eng}},
  title        = {{Roof-glass integrated microstrip antenna for vehicular SDARS applications}},
  year         = {{2026}},
}