Leaky-wave antenna with switchable omnidirectional conical radiation via polarization handedness
File(s)
Accepted version
Author(s)
Type
Journal Article
Abstract
Reconfigurable antennas capable of beam-steering offer an efficient solution to optimize the use of the crowded wireless medium and can serve as a multifunction antenna. Beam-steering is often achieved by antenna geometry switching at the expense of hardware complexity. Here, polarization is used to realize beam-steering without the need of antenna geometry modification. Depending on the handedness of the feed, backward or forward conical radiation is demonstrated in a ∼13λ0-long short-circuited helically slotted waveguide antenna. Tapering the slit width with a Taylor distribution reduces the measured sidelobe levels by ∼3 dB in average and results in a realized gain of 10-13 dB and 11-13 dB for right-handed (backward radiation) and left-handed circularly polarized (forward radiation) feeding, respectively, in the bandwidth from 8.5 to 9.5 GHz.
Date Issued
2020-03-01
Date Acceptance
2019-07-01
Citation
IEEE Transactions on Antennas and Propagation, 2020, 68 (3), pp.1282-1288
ISSN
0018-926X
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Start Page
1282
End Page
1288
Journal / Book Title
IEEE Transactions on Antennas and Propagation
Volume
68
Issue
3
Copyright Statement
© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Identifier
https://ieeexplore.ieee.org/document/8764619
Subjects
0906 Electrical and Electronic Engineering
1005 Communications Technologies
Networking & Telecommunications
Publication Status
Published
Date Publish Online
2019-07-16