Open AccessDesign of phased array antennas with beam switching capability in the near‐field focus applications
Author(s) -
Chou HsiTseng,
Yu ChienTe
Publication year - 2015
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2015.0034
Subject(s) - phased array , antenna (radio) , electronic engineering , focus (optics) , multipath propagation , microstrip antenna , microstrip , antenna array , beam steering , antenna aperture , aperture (computer memory) , beam (structure) , engineering , computer science , optics , radiation pattern , acoustics , electrical engineering , physics , channel (broadcasting)
This study presents the design methodology of a phased array antenna whose radiation will focus in the near zone of array aperture by using microstrip feeding circuits. A beam‐forming network based on Butler matrix is also implemented to scan the radiation beam along a target area in the near zone, which may improve the energy efficiency and reduce the multipath interferences. The design approach, numerical simulation and experimental measurement over an antenna prototype in the applications of radio‐frequency identification are presented to validate the feasibility.