Compact EBG structure for alleviating mutual coupling between patch antenna array elements

Mohammad Tariqul Islam, Md Shahidul Alam

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

The periodic structure like electromagnetic band gap (EBG) is a hot research topic in the academia and RF-microwave industry due to their extraordinary surface wave suppression property. This study involved in designing a compact uni-planar type EBG structure for a 2.4 GHz resonant frequency band. Double folded bend metallic connecting lines are successfully utilized to realize a low frequency structure while a size reduction of 61% is achieved compared to the theoretically calculated size. From the transmission response, the surface wave band gap (SWBG) is found to be 1.2 GHz (1.91-3.11 GHz) whereas the artificial magnetic conductor (AMC) characteristic is observed at 3.3 GHz. The FEM based EM simulator HFSS is used to characterize the EBG structure. The SWBG property is utilized for alleviation of mutual coupling between elements of a microstrip antenna array. A 2 x 5 EBG lattice is inserted between the E-plane coupled array which reduced the coupling level by 17 dB without any adverse effect on the radiation performances.

Original languageEnglish
Pages (from-to)425-438
Number of pages14
JournalProgress in Electromagnetics Research
Volume137
DOIs
Publication statusPublished - 2013

Fingerprint

patch antennas
antenna arrays
Microstrip antennas
Antenna arrays
Energy gap
electromagnetism
Surface waves
surface waves
microstrip antennas
Periodic structures
Frequency bands
simulators
resonant frequencies
Natural frequencies
conductors
Simulators
industries
Microwaves
retarding
low frequencies

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Radiation
  • Electrical and Electronic Engineering

Cite this

Compact EBG structure for alleviating mutual coupling between patch antenna array elements. / Islam, Mohammad Tariqul; Alam, Md Shahidul.

In: Progress in Electromagnetics Research, Vol. 137, 2013, p. 425-438.

Research output: Contribution to journalArticle

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