A new high-gain and low-complexity pattern-reconfigurable antenna

Stylianos D. Assimonis, Argiris Theopoulos, Theodoros Samaras

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)


A new pattern-reconfigurable antenna, which operates from 2.36 GHz to 2.55 GHz and has maximum directivity 7.2 dB at horizontal plane, is presented in this work. In contrast to prior art designs, there is no ground plane, which usually displaces the directivity main lobe from the horizontal plane. In this paper, the main-lobe elevation angle is zero. The antenna is an Electronically Steerable Parasitic Array Radiator (ESPAR) antenna, based on Yagi-Uda concept, and utilizes printed elements on low-cost FR-4: a bow-tie dipole (driven-element) was surrounded by eight bow-tie parasitic-elements. The latter, which can be open or short-circuited using voltage-control RF switchers, act as directors or reflectors and hence accurately control the radiation pattern. The antenna was analyzed in terms of reflection coefficient and directivity and finally was fabricated and measured. Measurements agree well with simulations.

Original languageEnglish
Title of host publication9th European Conference on Antennas and Propagation (EuCAP)
Publication statusPublished - 27 Aug 2015
Event9th European Conference on Antennas and Propagation, EuCAP 2015 - Lisbon, Portugal
Duration: 13 May 201517 May 2015


Conference9th European Conference on Antennas and Propagation, EuCAP 2015
Abbreviated titleEuCAP 2015
Internet address


  • beam steering
  • ESPAR antenna
  • pattern-reconfigurable
  • Antennas

ASJC Scopus subject areas

  • Instrumentation
  • Radiation
  • Computer Networks and Communications


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