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Updated: Feb 24, 2026

Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics

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Published on: May 28, 2016

Design of High Impedance Electromagnetic Surfaces for Mutual Coupling Reduction in Patch Antenna Array.

Mohammad Tariqul Islam¹, Md Shahidul Alam^2,3

¹Institute of Space Science (ANGKASA), Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia. titareq@yahoo.com.

Materials (Basel, Switzerland)

|August 16, 2017

Summary

A novel meander-bridge high impedance electromagnetic structure (MBHIES) effectively suppresses surface waves and reduces antenna array mutual coupling by over 20 dB. This compact design enhances antenna performance without impacting radiation characteristics.

Keywords:

array bandgap high impedance surfaces meandered line mutual coupling

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Area of Science:

Electromagnetics
Antenna Engineering
Metamaterials

Background:

High mutual coupling in antenna arrays degrades performance.
Surface waves can cause unwanted signal interference and radiation loss.

Purpose of the Study:

To design and analyze a compact planar meander-bridge high impedance electromagnetic structure (MBHIES).
To investigate the bandgap characteristics and mutual coupling reduction capabilities of the MBHIES.
To validate simulation results with fabricated prototypes.

Main Methods:

Parametric analysis for optimized design values.
Transmission response calculation using suspended microstrip line and waveguide simulations.
Integration of MBHIES within a microstrip patch antenna array for performance evaluation.
Surface wave suppression analysis and prototype fabrication for experimental verification.

Main Results:

Achieved a 2.3 GHz bandgap (2.55-4.85 GHz) with a minimum transmission coefficient of -61 dB at 3.6 GHz.
Reduced mutual coupling by 20.69 dB (simulation) and 19.18 dB (measurement).
Demonstrated effective surface wave suppression.
Maintained antenna radiation characteristics while slightly increasing gain.

Conclusions:

The proposed MBHIES is effective in creating a bandgap and suppressing surface waves.
The MBHIES significantly reduces mutual coupling in antenna arrays.
The compact design offers a practical solution for improving antenna array performance.