Theory of Dielectric-Filled Edge-Slot Antennas.
Final rept. 1 Jun 77-31 May 79,
MICHIGAN UNIV ANN ARBOR RADIATION LAB
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A theory has been developed for the performance of a DFES antenna mounted on a conducting cylinder. It explains accurately the experimental results, furnished by HDL, for basic, two-element, and single ring DFES antennas, containing an arbitrary number of tuning posts. For such antennas, detailed computations have been carried out for arbitrary variations of the relavant parameters of the DFES antenna. These results will clearly be of help in the future design of this type of antenna allowing a choice of parameters to be made beforehand in order to achieve a desired frequency response. For DFES antennas having more than two elements or one ring, the theory breaks down when the total number of tuning posts used exceeds some value dependent on the radius of the antenna and when the innermost ring of posts is placed too close to the exciting post. For such antennas, more thorough analysis is needed, involving higher order modes and terms which have been neglected in the present theory. Author
- Electrical and Electronic Equipment
- Electricity and Magnetism