Cart (Loading....) | Create Account
Close category search window

Characteristics Verification of a Half-Wave Dipole Very Close to a Conducting Plane With Excellent Impedance Matching

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)
Thumvichit, A. ; Seagate Co., Pathumthani Province ; Takano, T. ; Kamata, Y.

A half-wave dipole located very close to a conducting plane with distance of lambda/30 is investigated. The configuration has an impedance matching function and a balanced feed built in the antenna structure so that an external matching or a balun is not required. The experimental result verifies the numerical analysis by method of moments (MoM), and well explains the predecessors' analytical results by classical methods. The maximum radiation occurs in the normal direction to a reflector plane. We have achieved a maximum gain of 8.4 dBi which is higher than that of a half-wave dipole with a quarter wavelength distance between the reflector. The bandwidth for -10 dB is about 2%. The electric field distribution is studied to show the creation and propagation of electromagnetic waves which correspond to the energy flows in the normal direction to the conductor plane and also sideward along the plane in a small amount. The field lines are shown to be frozen between the dipole and the conductor plane without propagation. Accordingly, this state may be called a quadruple mode

Published in:

Antennas and Propagation, IEEE Transactions on  (Volume:55 ,  Issue: 1 )

Date of Publication:

Jan. 2007

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.