Open AccessGain enhanced pattern reconfigurable planar Yagi‐Uda antenna on coplanar structure
Author(s) -
Raman S.,
Timmons N.,
Morrison J.
Publication year - 2013
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2013.3177
Subject(s) - reflector (photography) , control reconfiguration , antenna (radio) , omnidirectional antenna , radiation pattern , planar , antenna gain , reconfigurable antenna , antenna measurement , optics , computer science , electronic engineering , coaxial antenna , physics , engineering , telecommunications , embedded system , light source , computer graphics (images)
A gain enhanced planar Yagi‐Uda antenna with pattern reconfiguration is presented. The prototype provides an omnidirectional pattern as well as a high‐gain directive pattern, which can be reconfigured on two orthogonal planes. For the first time, the principle of a Yagi‐Uda antenna combined with pattern reconfiguration is implemented without complexity on a planar prototype. The pattern reconfiguration is achieved by alternately switching the driven and reflector elements of the Yagi‐Uda antenna. The prototype concept was simulated using CST Microwave Studio, fabricated on a substrate of dielectric constant 4.4 and tested using an R&S ZVB8 network analyser. The gain variation with the reflector and director parameters is also analysed and presented.