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Circularly polarized sub-THz antenna design for distributed deployment

Cao, Yuyan ; Wojnowski, Maciej and Lau, Buon Kiong LU (2024) 18th European Conference on Antennas and Propagation, EuCAP 2024 In 18th European Conference on Antennas and Propagation, EuCAP 2024
Abstract

Sub-THz deployment is challenging due to high propagation losses, necessitating dense deployment. To reduce cost, RF signal can be distributed via plastic fiber to remote radio units to increase coverage area. In this paper, we propose an antenna-in-package concept for the single-layer substrate on low-cost embedded wafer level ball grid array (eWLB) packages. To suppress the distortion in the broadside pattern from the coplanar waveguide feed line, the circularly polarized patch antenna is surrounded by an integrated loop structure. The loop also enhances the antenna bandwidth by adding a second resonance. Simulation results show that the proposed antenna offers broadside coverage with the 10 dB impedance and 3 dB axial ratio... (More)

Sub-THz deployment is challenging due to high propagation losses, necessitating dense deployment. To reduce cost, RF signal can be distributed via plastic fiber to remote radio units to increase coverage area. In this paper, we propose an antenna-in-package concept for the single-layer substrate on low-cost embedded wafer level ball grid array (eWLB) packages. To suppress the distortion in the broadside pattern from the coplanar waveguide feed line, the circularly polarized patch antenna is surrounded by an integrated loop structure. The loop also enhances the antenna bandwidth by adding a second resonance. Simulation results show that the proposed antenna offers broadside coverage with the 10 dB impedance and 3 dB axial ratio bandwidths of 14.2% and 11.2% at 145 GHz, as well as realized gain of 7.8 dBi. The antenna shows good promise for array implementation on eWLB packages.

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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
keywords
antenna array, circularly polarized antennas, dense deployment, subTHz band
host publication
18th European Conference on Antennas and Propagation, EuCAP 2024
series title
18th European Conference on Antennas and Propagation, EuCAP 2024
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
conference name
18th European Conference on Antennas and Propagation, EuCAP 2024
conference location
Glasgow, United Kingdom
conference dates
2024-03-17 - 2024-03-24
external identifiers
  • scopus:85192502659
ISBN
9788831299091
DOI
10.23919/EuCAP60739.2024.10501515
language
English
LU publication?
yes
id
d2c863da-1a2c-471d-92bd-92f8010203ec
date added to LUP
2025-01-15 15:23:06
date last changed
2025-07-17 06:30:15
@inproceedings{d2c863da-1a2c-471d-92bd-92f8010203ec,
  abstract     = {{<p>Sub-THz deployment is challenging due to high propagation losses, necessitating dense deployment. To reduce cost, RF signal can be distributed via plastic fiber to remote radio units to increase coverage area. In this paper, we propose an antenna-in-package concept for the single-layer substrate on low-cost embedded wafer level ball grid array (eWLB) packages. To suppress the distortion in the broadside pattern from the coplanar waveguide feed line, the circularly polarized patch antenna is surrounded by an integrated loop structure. The loop also enhances the antenna bandwidth by adding a second resonance. Simulation results show that the proposed antenna offers broadside coverage with the 10 dB impedance and 3 dB axial ratio bandwidths of 14.2% and 11.2% at 145 GHz, as well as realized gain of 7.8 dBi. The antenna shows good promise for array implementation on eWLB packages.</p>}},
  author       = {{Cao, Yuyan and Wojnowski, Maciej and Lau, Buon Kiong}},
  booktitle    = {{18th European Conference on Antennas and Propagation, EuCAP 2024}},
  isbn         = {{9788831299091}},
  keywords     = {{antenna array; circularly polarized antennas; dense deployment; subTHz band}},
  language     = {{eng}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  series       = {{18th European Conference on Antennas and Propagation, EuCAP 2024}},
  title        = {{Circularly polarized sub-THz antenna design for distributed deployment}},
  url          = {{http://dx.doi.org/10.23919/EuCAP60739.2024.10501515}},
  doi          = {{10.23919/EuCAP60739.2024.10501515}},
  year         = {{2024}},
}