Bandwidth-enhanced, compact, near-field resonant parasitic filtennas with sharp out-of-band suppression

Ming Chun Tang, Ying Chen, Ting Shi, Richard W. Ziolkowski

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


The designs, simulations, and measurements of a class of compact, bandwidth-enhanced filtennas are reported. Our design strategy is illustrated by separately designing a monopole and a bandpass filter to operate primarily in their respective fundamental modes. By combining these elements and manipulating the mutual coupling between them, an enhanced impedance bandwidth filtenna is realized. This strategy is applied to augment metamaterial-inspired near-field resonant parasitic antennas with filters. Simulations of these filtenna systems demonstrate that one can maintain stable radiation performance characteristics no matter how one arranges their component configurations, i.e., their relative positions and orientations. A selected filtenna design prototype was fabricated and tested. The good agreement between the simulated and measured results validates these design principles.

Original languageEnglish (US)
Article number8395358
Pages (from-to)1483-1487
Number of pages5
JournalIEEE Antennas and Wireless Propagation Letters
Issue number8
StatePublished - Aug 2018


  • Antennas
  • electrically small antennas
  • filtennas
  • impedance bandwidth
  • near-field resonant parasitic (NFRP) elements

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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