Spillover Mitigation Method in Rotman Lens-Based Retrodirective Arrays
Paper i proceeding, 2025

This paper presents a new method to compensate for spillover loss in Rotman lens-based retrodirective arrays. The proposed approach aims to minimize the radar cross section (RCS) variation across the full field-of-view (FoV) of ±30° and the operating bandwidth of 24-24.25 GHz. By proper phase correction transmission line (TL) design at the array side and compensating for phase errors between adjacent beamports, the method significantly reduces the initial RCS variation from 25 dB to 3.2 dB over the 30° scan angle. The results demonstrate improved performance in maintaining a more uniform RCS across the entire FoV, contributing to enhanced retrodirective array functionality.

Retrodirective Array

Rotman Lens

RCS variation

Backscatter commuication

Författare

Alireza Jahanbakhshi

Universität Duisburg-Essen

Navid Amani

EMickers Ab

Henk Wymeersch

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

EMickers Ab

Daniel Erni

Universität Duisburg-Essen

Andreas Rennings

Universität Duisburg-Essen

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)

Kommunikationssystem

Signalbehandling

DOI

10.23919/EuCAP63536.2025.10999641

Mer information

Senast uppdaterat

2025-06-18