An Antenna Array with Contactless Feeding Design Using MetaCoax Coupler
Paper i proceeding, 2025

In this paper, contactless capacitively coupled PCB-to-PCB couplers, referred to as MetaCoax, are used to design a feeding layer with beamforming electronics for an 8× 8 element circularly polarized antenna array. The simulated performance of the antenna array, both with and without the feeding layer, shows nearly identical results. The antenna with the feeding layer achieves a 15% bandwidth, with active reflection coefficients of ≤-10 dB and axial ratios of ≤ 3 when scanning within a ± 60° scan volume. This is accompanied by a gain reduction of ≤ 0.4 dB compared to a directly fed antenna (i.e., without the feeding layer).

antennas

measurements

propagation

electromagnetics

Författare

Prabhat Khanal

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Alireza Bagheri

Gapwaves AB

Xinxin Yang

Gapwaves AB

Jian Yang

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Eucap 2025 19th European Conference on Antennas and Propagation


9788831299107 (ISBN)

19th European Conference on Antennas and Propagation, EuCAP 2025
Stockholm, Sweden,

Ämneskategorier (SSIF 2025)

Annan elektroteknik och elektronik

Telekommunikation

DOI

10.23919/EuCAP63536.2025.10999683

Mer information

Senast uppdaterat

2025-06-19