By Topic

A Printed Wide-Slot Antenna With a Modified L-Shaped Microstrip Line for Wideband Applications

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Y. Sung ; Electron. Eng. Dept., Kyonggi Univ., Suwon, South Korea

A printed wide-slot antenna for wideband applications is proposed and experimentally investigated in this communication. A modified L-shaped microstrip line is used to excite the square slot. It consists of a horizontal line, a square patch, and a vertical line. For comparison, a simple L-shaped feed structure with the same line width is used as a reference geometry. The reference antenna exhibits dual resonance (lower resonant frequency f1, upper resonant frequency f2). When the square patch is embedded in the middle of the L-shaped line, f1 decreases, f2 remains unchanged, and a new resonance mode is formed between f1 and f2 . Moreover, if the size of the square patch is increased, an additional (fourth) resonance mode is formed above f2. Thus, the bandwidth of a slot antenna is easily enhanced. The measured results indicate that this structure possesses a wide impedance bandwidth of 118.4%, which is nearly three times that of the reference antenna. Also, a stable radiation pattern is observed inside the operating bandwidth. The gain variation is found to be less than 1.7 dB.

Published in:

IEEE Transactions on Antennas and Propagation  (Volume:59 ,  Issue: 10 )