Novel Chebyshev distributed chirped photonic bandgap (PBG) structures

Jeffrey S. Fu*, Md Nurunnabi Mollah, Nemai C. Karmakar

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

4 Scopus citations


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.

Original languageEnglish
Pages (from-to)571-589
Number of pages19
JournalInternational Journal of Infrared and Millimeter Waves
Issue number4
StatePublished - 04 2006
Externally publishedYes


  • Chebyshev distribution
  • Chirped
  • Optimum filling factor
  • Passband
  • Photonic bandgap structures
  • Stopband


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