A Low-Profile Microstrip Vertically Polarized Endfire Antenna With 360° Beam-Scanning and High Beam-Shaping Capability

A novel low-profile vertically polarized planar endfire smart antenna that can achieve 360° beam-steering and high beam-shaping capability is proposed. The microstrip antenna is printed on a single thin substrate with a vertically polarized omnidirectional driven source and 36 tunable slot-integrate...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2022-09, Vol.70 (9), p.7691-7702
Main Authors: Zhang, Yujie, Tang, Shiwen, Han, Zixiang, Rao, Junhui, Shen, Shanpu, Li, Min, Chiu, Chi-Yuk, Murch, Ross
Format: Article
Language:English
Subjects:
Antenna radiation patterns
Antennas
Beam steering
Beam-scanning
Beamforming
Dipole antennas
Directive antennas
Geometry
Microstrip antennas
pattern-reconfigurable antenna
planar antenna
Scanning
smart antenna
Substrates
Vertical polarization
Wireless communication systems
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A novel low-profile vertically polarized planar endfire smart antenna that can achieve 360° beam-steering and high beam-shaping capability is proposed. The microstrip antenna is printed on a single thin substrate with a vertically polarized omnidirectional driven source and 36 tunable slot-integrated microstrip vertically polarized resonators (SMVR) for shaping the endfire beams. To verify the design approach, a prototype operating at the 5 GHz WLAN band is fabricated and tested. The results show that the antenna operates from 5.55 to 5.75 GHz and is capable of scanning a single endfire beam from 0° to 360° in the full azimuth plane. The scanning resolution and the maximum realized gain are 15° and 8.2 dBi, respectively. Moreover, multiple radiation pattern shapes including omnidirectional beam, dual-beams, and tri-beams can also be generated by the antenna. The overall antenna height is only 0.06~\lambda at 5.6 GHz. This design provides a new antenna configuration for low-profile vertically polarized endfire beam-steering and beam-shaping antenna and is promising for future wireless communication systems with lost-cost beamforming property.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2022.3171342