Design of high impedance electromagnetic surfaces for mutual coupling reduction in patch antenna array

Mohammad Tariqul Islam, Md Shahidul Alam

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

A compact planar meander-bridge high impedance electromagnetic structure (MBHIES) was designed and its bandgap characteristics, mutual coupling reduction abilities were studied and compared in detail. Several parametric analyses were performed to obtain optimized design values and the transmission responses were calculated through the suspended microstrip line and waveguide simulation methods. The achieved bandgap is 2.3 GHz (2.55-4.85 GHz) with -61 dB minimum transmission coefficient level at the center frequency of 3.6 GHz. To see the effectiveness, the proposed design was inserted between a microstrip patch antenna array which operates at 3.8 GHz and whose operating bandwidth falls within the MBHIES bandgap. The surface wave suppression phenomenon was analyzed and simulated results are verified by measuring the fabricated prototypes, both are in good agreement. The configuration reduced the mutual coupling by 20.69 dB in simulation and 19.18 dB in measurement, without affecting the radiation characteristics of the array but increasing the gain slightly.

Original languageEnglish
Pages (from-to)143-155
Number of pages13
JournalMaterials
Volume6
Issue number1
DOIs
Publication statusPublished - 2013

Fingerprint

Microstrip antennas
Antenna arrays
Energy gap
Microstrip lines
Surface waves
Waveguides
Bandwidth
Radiation

Keywords

  • Array
  • Bandgap
  • High impedance surfaces
  • Meandered line
  • Mutual coupling

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Design of high impedance electromagnetic surfaces for mutual coupling reduction in patch antenna array. / Islam, Mohammad Tariqul; Shahidul Alam, Md.

In: Materials, Vol. 6, No. 1, 2013, p. 143-155.

Research output: Contribution to journalArticle

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