Dual Frequency Multi-Functional via-Less Leaky Wave Antenna Featuring Enhanced Frequency Sensitivity and Dual Beam Scanning Capability

In this paper we present a dual band low cross-polarized periodic microstrip leaky wave antenna (LWA) based on the multi mode resonator concept (MMR). The structure is capable of frequency dependent backward dual-beam steering and fast forward beam scanning in the upper and lower operating band, res...

Full description

Saved in:
Bibliographic Details
Published in:IEEE access 2024, Vol.12, p.76858-76869
Main Authors: Majumder, Basudev, Vinnakota, Sarath Sankar, Goud Rangula, Madhusudhan, Kandasamy, Krishnamoorthy
Format: Article
Language:English
Subjects:
Antenna radiation patterns
Antennas
Autonomous navigation
beam scanning rate
Beam steering
Delays
Dispersion
Dual band
leaky wave antenna (LWA)
Leaky wave antennas
Leaky waves
Microstrip
Microstrip transmission lines
Navigation systems
Radiation
Radiation detectors
radiation discontinuity
Radiators
Relay systems
Resonant frequency
Sensitivity enhancement
Transmission lines
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper we present a dual band low cross-polarized periodic microstrip leaky wave antenna (LWA) based on the multi mode resonator concept (MMR). The structure is capable of frequency dependent backward dual-beam steering and fast forward beam scanning in the upper and lower operating band, respectively. A gap loaded microstrip line is used as a host transmission line to feed the combination of the periodic patch radiators on the top and the bottom etched slots leading to the generation of the forward and the backward space harmonics. The etched ring slots at the bottom surface of the structure are not only responsible for steering the beam in the backward direction in the bottom hemisphere in its upper band but also adds radiation diversity in the overall radiation mechanism in its two operating bands. The potential use of this antenna resides in its ability to produce in-plane fast forward beam steering suitable for autonomous vehicle navigation systems in its lower band and out-of-plane backward-symmetric dual beam steering in the upper operating bands, suitable for tracking in relay systems.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2024.3406936