Reconfigurable Parasitic Element Antenna Using Reflection Phase Shifters

• Published in: IEEE antennas and wireless propagation letters Vol. 14; pp. 775 - 778
• Main Authors: Fezai, Faycel, Menudier, Cyrille, Thevenot, Marc, Arnaud, Eric, Monediere, Thierry
• Format: Journal Article
• Language: English
• Published: IEEE 2015; Institute of Electrical and Electronics Engineers
• Subjects: Antenna arrays; Antenna measurements; Antenna radiation patterns; Beamforming; Electromagnetism; Engineering Sciences; parasitic element antenna; Phase shifters; reactive loads; reconfigurable antenna; Reflection; Varactors; reflection phase shifter; parasitic element antenna; reconfigurable antenna; beamforming
• ISSN: 1536-1225; 1548-5757
• DOI: 10.1109/LAWP.2014.2377592

This letter presents a simple reconfigurable antenna concept, which is based on the influence of reflection phase shifters on the mutual coupling to the parasitic elements. The developed antenna operates in the Industrial, Scientific and Medical band (ISM) at frequency of 2.45 GHz. The objective of this work involves the development of a generic and low-cost reconfigurable antenna, with a 1-D or 2-D layout. The parasitic elements are loaded with varactor phase shifters, and the global synthesis is performed through different radiation pattern objectives. In this letter, we have limited these objectives to two opposite directions as we considered only a 1-D layout. The design has been manufactured and measured. A comparison between the measured and the simulation results shows a very good agreement.