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Pattern Reconfigurable Cubic Antenna

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4 Author(s)
Julien Sarrazin ; Inst. de Rech. en Electrotech. et Electron. de Nantes Atlantique (IREENA), Univ. of Nantes, Nantes ; Yann Mahe ; StÉphane Avrillon ; Serge Toutain

A new single-feed reconfigurable antenna for pattern diversity is presented in this paper. The proposed structure is based on a metallic cubic cavity which radiates through rectangular slots. The pattern reconfiguration is achieved with PIN diode switches by short-circuiting slots in their center. The designed antenna can switch between three different radiation patterns which radiate in a 4pi steradian range and can receive any incident field polarizations. A prototype of the antenna, including PIN diodes and operating in the 5 GHz band, has been built to demonstrate the feasibility of the concept. Measurements have been conducted and three-dimensional radiation patterns are provided. Diversity performances are evaluated by calculating the envelope correlation coefficient.

Published in:

IEEE Transactions on Antennas and Propagation  (Volume:57 ,  Issue: 2 )