By Topic

Switched Parasitic Dipole Antenna Array for High-Data-Rate Body-Worn Wireless 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
$31 $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

3 Author(s)
Islam, M.R. ; Univ. of South Carolina, Columbia, SC, USA ; Chamok, N.H. ; Ali, M.

A switched parasitic dipole antenna array is introduced for 2.45-GHz body-worn wireless applications. The array consists of a driven folded dipole and four parasitic dipoles whose excitation currents are controlled using p-i-n diode switches. Radiation beam can be steered in the azimuth plane using selective switching of the parasitic dipoles. An experimental prototype array was fabricated and tested to demonstrate performance both in free-space and next to the human body. Measured S11 (dB) data clearly demonstrate that the array meets the 2.45-GHz ISM band bandwidth requirements when operated on or near the body. Simulation results of the array against an anatomical human body model show that the array beam can be scanned within an angular region of 65° with 6.9-8 dBi of peak gain. Significant improvement in radiation efficiency and considerably lower specific absorption rate (SAR) are achieved with this array. Measured radiated field strength test shows that the array performance is 2-5 dB superior to a single folded dipole for body-worn applications.

Published in:

Antennas and Wireless Propagation Letters, IEEE  (Volume:11 )