By Topic

Capacitor antenna in a parallel plate waveguide

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

2 Author(s)
H. Miyashita ; Mitsubishi Electr. Corp., Kamakura, Japan ; S. Makino

Time-consuming soldering process is required for waveguide-fed planar antennas with probe excitation of radiating elements. It is desirable to implement a sophisticated process for mass production. One of the candidates is a capacitor antenna in the waveguide etched under the radiating element as shown. In this study, input admittance of the circular capacitor antenna in a parallel plate waveguide is analyzed. The mode matching method is applied as a waveguide bifurcation problem in cylindrical coordinates. To construct analytical solution of edge admittance through the direct inversion or residue calculus method, the effect of disk curvature on the reflection coefficient is asymptotically neglected. The resultant expression of infinite products finally reduces to a simple closed form through appropriate approximations and sum formulas. Matching posts manufacturable by via-hole process are added inside the capacitor and the effect is calculated by the radial line equivalent circuit. Experimental verification is given.

Published in:

Antennas and Propagation Society International Symposium, 2003. IEEE  (Volume:4 )

Date of Conference:

22-27 June 2003