By Topic

Integrable sleeve choke for radiation improvement of a printed monopole antenna for 2.4-GHz USB-dongle 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

1 Author(s)
Saou-Wen Su ; Network Access Strategic Bus. Unit, Lite-On Technol. Corp., Chungho, Taiwan

By integrating a pair of short sleeves into the system ground plane of a wireless USB dongle, the improved radiation patterns of a printed monopole antenna in the E planes cut along the axial direction of the dongle can be attained. The monopole selected for studies has a symmetrical, short-circuited structure and is to operate in the 2.4 GHz (2400-2484 MHz) band for ZigBee or Wi-Fi dongle applications. When there were no sleeves in the system ground, the ground-plane length significantly affected the patterns and the peak-gain direction of the monopole- antenna radiation. With the incorporation of the sleeves set at proper location and in suitable size, the radiation became very similar to that of a conventional two-wire, dipole antenna. In this case, for a common USB dongle having system PCB longer than λ/4 (λ is the free-space wavelength at 2442 MHz), the maximum field strength is no more in the direction of the ground plane or even toward the main electronic device after plugging in the dongle.

Published in:

Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on

Date of Conference:

11-15 April 2011