Frequency Reconfiguration of a Dual-Band Phased Array Antenna with Variable-Impedance Matching

Nadia Haider, Diego Caratelli, Alexander G. Yarovoy

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


In this article, a dual-band phased-array antenna element is presented. The proposed element is particularly designed to possess frequency tuning capabilities by variable-impedance matching. It is demonstrated that the operational frequency band of the antenna shifts from L-to S-band (about 2.5:1 frequency ratio) with in-band frequency tuning of about 25%. The compact size and the wide-angle scanning properties, make the antenna element suitable for phased-array application. Other advantages of variable-impedance matching for phased-array systems, such as sustain wider scan angles and minimize unwanted signal interferences, coming from spurious directions, are also discussed.

Original languageEnglish
Article number7117375
Pages (from-to)3477-3485
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Issue number8
Publication statusPublished - 1 Aug 2015


  • frequency agility
  • Reconfigurable antenna
  • variable impedance

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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