Precise determinations of the CPW-fed circular fractal slot antenna

Ji Chyun Liu*, Der Chyuan Lou, Chin Yen Liu, Ching Yang Wu, Tai Wei Soong

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

12 Scopus citations


The precise determinations of innovative CPW-fed slot antenna constructed with circular fractal patterns are introduced. By the Descartes circle theorem and self-similar design of iteration, the CPW-fed slot antenna is proposed. The practical design with multi-band responses is presented. The first resonance exhibits the wide-band operation with impedance bandwidth 66.4% (VSWR < 2). The radiation field presents array patterns, and the axial ratio is 1.18 dB at 1.8 GHz. Experimental results with iterative spectra and contour radiation patterns are presented and discussed.

Original languageEnglish
Pages (from-to)1586-1592
Number of pages7
JournalMicrowave and Optical Technology Letters
Issue number8
StatePublished - 08 2006
Externally publishedYes


  • Circular fractal
  • Descartes circle theorem
  • Slot antenna


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