Clustered Movable Pinching Antennas: Realizing Beamforming Gains and Target Diversity in ISAC Systems with Look-Angle-Dependent RCS

TL;DR

This paper proposes a novel ISAC system using clustered movable pinching antennas that enable beamforming and target diversity by dynamically activating and spatially separating antenna clusters.

Contribution

It introduces a new antenna organization with movable clusters for enhanced beamforming and multi-angle target illumination in ISAC systems.

Findings

Enables transmit beamforming through antenna movement within clusters.

Allows illumination of targets from multiple angles via spatially separated clusters.

Demonstrates improved target sensing and communication capabilities.

Abstract

We investigate a novel integrated sensing and communication (ISAC) system enabled by pinching antennas (PAs), which are dynamically activated along a dielectric waveguide. Unlike prior designs, the PAs are organized into multiple clusters of movable antennas. The movement of the antennas within each cluster enables transmit beamforming, while the spatial separation of different clusters allows the system to illuminate the target from multiple angular perspectives.