Broadband Circularly Polarized Magnetoelectric Dipole Antenna by Loading Parasitic Loop

A broadband circularly polarized (CP) magnetoelectric (ME) dipole antenna loaded with parasitic loop is presented in this communication. The proposed ME dipole antenna is fed through the slot-coupled feeding method, in which a microstrip line is used to couple the energy to the antenna by the slot e...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2022-11, Vol.70 (11), p.11085-11090
Main Authors: Ding, Kang, Li, Yujian, Wu, Yanjie
Format: Article
Language:English
Subjects:
Antenna feeds
Antenna radiation patterns
Antennas
Bandwidth
Bandwidths
Broadband
Broadband antennas
Circular polarization
circularly polarized (CP)
Dipole antennas
Frequencies
Gain
Ground plane
magnetoelectric (ME) dipole antenna
Microstrip transmission lines
Parasitic elements (antennas)
Pins
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 broadband circularly polarized (CP) magnetoelectric (ME) dipole antenna loaded with parasitic loop is presented in this communication. The proposed ME dipole antenna is fed through the slot-coupled feeding method, in which a microstrip line is used to couple the energy to the antenna by the slot etched on the ground plane. By introducing a parasitic loop coplanar with the horizontal patch, extra CP modes are generated due to the coupling with the radiation patch. Combining with the original CP mode, the simulated 3 dB axial-ratio (AR) bandwidth is enhanced from 12.2% to 45.8% with an increment of 33.6%. The measured results show that the 10 dB impedance bandwidth is 55.3% (3.4-6.0 GHz) and the 3 dB AR bandwidth is 42.1% (3.62-5.55 GHz). Moreover, the proposed antenna owns flat gain and stable unidirectional radiation patterns within the designated frequency band.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2022.3188360