A Novel Dual-band Electromagnetic Bandgap for WLAN Applications

  • Huynh Nguyen Bao Phuong
  • Dao Ngoc Chien
  • Tran Minh Tuan

Abstract

A  novel  dual-band  electromagnetic  bandgap (EBG)  for  wireless  local  area  network  (WLAN) applications  is  designed  in  this  paper.  The  EBG structure is based  on  hexagonal geometry and does not use  via  or  multilayer.  The  bandgap  characteristics  are investigated  by  determining  the  scatter  parameters.  By adjusting  the  parameters  in  the  dimension  of  the structure, the dual bandgaps can be controlled easily to achieve  the  WLAN  frequencies.  Comparisons  between the proposed structure with another one, which have the same  dielectric  permittivity  and  thickness  of  the dielectric  substrate,  have  been  done.  The  structure  is then  also  optimized  to  obtain  the  high  impedance  in surface  at  the  frequencies  of  the  WLAN  bands,  which are  centered  at  2.45  GHz  and  5.5  GHz.  Simulated  and measured  results  are  shown  to  demonstrate  the performance of the proposed structure.
Published
2013-10-28
Section
Regular Articles

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