Decoupling of Two Closely Located Dipole Antennas by a Split-Loop Resonator

TL;DR

This paper demonstrates a novel passive decoupling method for two closely spaced dipole antennas using a split-loop resonator, significantly expanding the operational bandwidth without shrinking it.

Contribution

The study introduces a new decoupling technique with a split-loop resonator that maintains a wider bandwidth compared to previous methods.

Findings

Achieved 100% enhancement of relative operation band from 0.2% to 0.4%.

Theoretical and experimental validation of the decoupling method.

No bandwidth shrinkage observed with the new technique.

Abstract

In this letter, we theoretically and experimentally prove the possibility of the complete passive decoupling for two parallel resonant dipoles by a split-loop resonator. Unlike previously achieved decoupling by a similar resonant dipole, this decoupling technique allows us to avoid the shrink of the operation band. Compare to previous work, simulation and measurement show 100\% enhancemnet of relative operation band from 0.2% to 0.4%