Abstract

 
 
 This paper presents a novel antenna configuration to support reconfigurable multi-beam feature with dual-band capability. The proposed design uses four double Vee dipoles with their arms printed on either sides of a substrate and fed through a single coaxial input probe. A single directional beam that can be configured in four directions at quadrature angle in the azimuth (xy-plane) and corresponding dual, triple and quad beams have been obtained by controlling the state of four PIN diodes. A prototype of the proposed antenna has been designed and fabricated. Measured antenna parameters are in good agreement with that of simulated parameters. This highly planar antenna shows similar radiation patterns at both design frequencies enabling concurrent dual-band communication for all fifteen possible beam configurations.
 
 
Highlights
Reconfigurability has become a highly desirable feature in modern wireless communication systems
Pattern reconfigurability is achieved by using phased antenna arrays, which are large, complex and costly assemblies
A dual-band antenna based on printed Vee dipoles with multi-beam pattern reconfigurability feature is presented in this paper
Summary
Reconfigurability has become a highly desirable feature in modern wireless communication systems. The radiation patterns are not aligned in the same direction for the two design frequencies making it unsuitable for concurrent communication with the same receiver To overcome these issues, a dual-band antenna based on printed Vee dipoles is proposed in this paper. The design of an antenna that has a planar structure supporting reconfigurable radiation pattern with simultaneous multi-beam configuration at more than one frequency is a task yet to accomplish. Such antennas are anticipated to be important for future concurrent communication systems. The antenna proposed in this paper uses four PIN diodes to connect any of the four double Vee dipoles to realize similar radiation beams at two frequency bands simultaneously. Radiation patterns are obtained at two frequencies simultaneously making the antenna a good choice for use in concurrent diversity applications
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