A Teflon-Filled Open-Ended Circular Waveguide Focal-Plane-Array Used for Sway Compensation in W-band 50dB-Gain Backhaul Reflector Antennas
Paper i proceeding, 2023

The paper introduces a novel focal plane array (FPA) design aimed at enhancing the reliability of millimeter-wave backhaul communication links by compensating for the impact of antenna mounting structures' sways. This FPA is analyzed for an offset parabolic reflector antenna with the 40-cm aperture diameter at W-band frequencies (92-96 GHz). The FPA-fed reflector antenna generates multiple closely-overlapping beams to compensate for the expected antenna tilt range, equivalent to seven beamwidths. This study addresses major challenges associated with FPA design implementation at these high frequencies, including (i) the need for a small (≤ 0.75 λ) inter-element spacing for the required beam overlap, and (ii) manufacturing complexities of an array element ensuring optimal reflector illumination and impedance matching in the presence of mutual coupling effects. An analytical approach to the FPA pattern shaping for optimal reflector illumination is proposed and successfully validated via numerical optimization and measurements. Furthermore, our analysis of the total reflector-FPA system shows promising results, i.e. 56 - 68% antenna aperture efficiency (49 - 50 dBi directivity) for all beams with compliance to the radiation emission constraints (ETSI class 3) within ±89°.

Foca1 plane array

backhaul communication links

waveguide

reflector antenna

5G/6G antennas

Författare

Viktor Chernikov

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Artem Vilenskiy

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Sam Agneessens

Ericsson AB

L. Manholm

Ericsson AB

Malcolm Ng Mou Kehn

National Yang Ming Chiao Tung University

Marianna Ivashina

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

2023 International Conference on Electromagnetics in Advanced Applications, ICEAA 2023

340-345
9798350320589 (ISBN)

25th International Conference on Electromagnetics in Advanced Applications, ICEAA 2023
Venice, Italy,

Energy Efficient, Beamforming Antenna-IC Integration Solutions for Future 100+GHz Telecommunication Systems

VINNOVA (2021-01337), 2021-07-01 -- 2023-06-30.

Ämneskategorier

Atom- och molekylfysik och optik

Kommunikationssystem

Signalbehandling

Annan elektroteknik och elektronik

DOI

10.1109/ICEAA57318.2023.10297687

Mer information

Senast uppdaterat

2024-02-02