Design of a Compact Log-Periodic Dipole Array Using T-Shaped Top Loadings

A compact log-periodic dipole array (LPDA) is presented with size-reduced dipole elements. With T-shaped top loading, the length of individual dipole elements is reduced by 45% compared to that of λ/2-dipole elements. The compact LPDA is simulated and fabricated for measurement verification. The mea...

Full description

Saved in:
Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2017, Vol.16, p.1585-1588
Main Authors: Jinxi Chen, Ludwig, Jesse, Sungkyun Lim
Format: Article
Language:English
Subjects:
Antenna measurements
Bandwidth
Bandwidths
Compact antennas
Dipole antennas
Frequency measurement
Gain
Gain measurement
Impedance
log-periodic dipole array (LPDA)
Simulation
T shape
top-loaded antenna
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 compact log-periodic dipole array (LPDA) is presented with size-reduced dipole elements. With T-shaped top loading, the length of individual dipole elements is reduced by 45% compared to that of λ/2-dipole elements. The compact LPDA is simulated and fabricated for measurement verification. The measured 10-dB impedance bandwidth is 87.3%, and the average realized gain in the direction of the shortest dipole is 5.1 dBi over the operating bandwidth.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2017.2652125