NOVEL CHEBYSHEV DISTRIBUTED CHIRPED PHOTONIC BANDGAP (PBG) STRUCTURES

  • Jeffrey S. Fu
  • Md. Nurunnabi Mollah
  • Nemai C. Karmakar
Article
First Online:

Abstract

A microstrip transmission line on a Chebyshev distributed chirped I-D photonic bandgap structure (PBGS) is proposed. Two different approaches are utilized to realize Chirped PBGS. Firstly, the inter-element distance of PBG elements is chirped with conventional chirping technique. Secondly, using Chebyshev distribution varies the inter-element distance. For both the cases, the amplitude is made non-uniform by varying the amplitudes in accordance with the co-efficient of Chebyshev distribution. It can be seen that the conventionally chirped PBGS having Chebyshev distribution in amplitude improves the over all performance. The inclusion of Chebyshev distribution in period calculation further improves the performance. It can be seen that the Chirped and non-uniform PBGS generates excellent bandgap performances in lower valued height of substrate that are superior to the performances available in the open literature.

Keywords

Chebyshev distribution Chirped Optimum filling factor Stopband passband Photonic bandgap structures 
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Copyright information

© Springer Science+Business Media, Inc. 2007

Authors and Affiliations

  • Jeffrey S. Fu
    • 1
  • Md. Nurunnabi Mollah
    • 2
  • Nemai C. Karmakar
    • 3
  1. 1.School of Electrical and Electronic EngineeringNanyang Technological University (NTU)SingaporeSingapore
  2. 2.Department of Electrical and Electronic EngineeringKhulna University of Engineering and Technology (KUET)KhulnaBangladesh
  3. 3.Department of Electrical Computer Systems EngineeringMonash UniversityVictoriaAustralia

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