Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

On channel gain performance of car roof-glass embedded 5G antenna

Aliakbari Abar, Hanieh LU orcid ; Lötbäck, Christian ; Li, Xiaotian and Lau, Buon Kiong LU (2025)
Abstract
5G antennas for vehicular connectivity are often mounted on the car roof to optimize signal reception. The trend of replacing metal roof with glass in modern cars opens an opportunity for embedding the 5G antennas inside the glass roof. In this work, we compare the channel gains of reference dipole, and loop antennas positioned at the roof center. Then, by considering the requirements of glass integration and the channel gain performance, a nontransparent wideband monopole antenna with an extended feedline is designed to be embedded inside a real glass roof. To recover the optical transparency of the roof glass while retaining the wideband performance, the metal conductor is replaced with non-uniform metal mesh structure. The proposed... (More)
5G antennas for vehicular connectivity are often mounted on the car roof to optimize signal reception. The trend of replacing metal roof with glass in modern cars opens an opportunity for embedding the 5G antennas inside the glass roof. In this work, we compare the channel gains of reference dipole, and loop antennas positioned at the roof center. Then, by considering the requirements of glass integration and the channel gain performance, a nontransparent wideband monopole antenna with an extended feedline is designed to be embedded inside a real glass roof. To recover the optical transparency of the roof glass while retaining the wideband performance, the metal conductor is replaced with non-uniform metal mesh structure. The proposed semi-transparent wideband monopole antenna covers both 5G and legacy bands. Within the operating frequency range from 617 MHz to 5 GHz, the channel gain and radiation efficiency are above -4.5 dB and 37%, respectively. (Less)
Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
2025 19th European Conference on Antennas and Propagation (EuCAP)
publisher
IEEE
external identifiers
  • scopus:105007508068
ISBN
979-8-3503-6632-7
978-88-31299-10-7
DOI
10.23919/EuCAP63536.2025.10999768
language
English
LU publication?
yes
id
4f28d197-09df-4c4f-a04d-61c7634e50bb
date added to LUP
2025-09-20 21:32:49
date last changed
2025-12-19 15:44:26
@inproceedings{4f28d197-09df-4c4f-a04d-61c7634e50bb,
  abstract     = {{5G antennas for vehicular connectivity are often mounted on the car roof to optimize signal reception. The trend of replacing metal roof with glass in modern cars opens an opportunity for embedding the 5G antennas inside the glass roof. In this work, we compare the channel gains of reference dipole, and loop antennas positioned at the roof center. Then, by considering the requirements of glass integration and the channel gain performance, a nontransparent wideband monopole antenna with an extended feedline is designed to be embedded inside a real glass roof. To recover the optical transparency of the roof glass while retaining the wideband performance, the metal conductor is replaced with non-uniform metal mesh structure. The proposed semi-transparent wideband monopole antenna covers both 5G and legacy bands. Within the operating frequency range from 617 MHz to 5 GHz, the channel gain and radiation efficiency are above -4.5 dB and 37%, respectively.}},
  author       = {{Aliakbari Abar, Hanieh and Lötbäck, Christian and Li, Xiaotian and Lau, Buon Kiong}},
  booktitle    = {{2025 19th European Conference on Antennas and Propagation (EuCAP)}},
  isbn         = {{979-8-3503-6632-7}},
  language     = {{eng}},
  publisher    = {{IEEE}},
  title        = {{On channel gain performance of car roof-glass embedded 5G antenna}},
  url          = {{http://dx.doi.org/10.23919/EuCAP63536.2025.10999768}},
  doi          = {{10.23919/EuCAP63536.2025.10999768}},
  year         = {{2025}},
}