ISSN:
1572-9559
Keywords:
Microstrip dipoles
;
printed circuit antennas
;
thick substrates
;
half-space
;
radiation patterns
;
efficiency
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Certain basic radiation properties of microstrip dipoles on electrically thick substrates are investigated, and a comparison is made with the case of dipoles printed on a dielectric half-space. It is concluded that the microstrip dipole radiation properties become sensitive to substrate loss as the substrate thickness increases, with the half-space properties obtained for an adequate amount of loss. Asymptotic formulas for radiated power and efficiency are given for both the thick substrate and half-space problems, showing the behavior with increasing dielectric constant. The method of moments is used to extend the analysis to center-fed strip dipoles, and a method of improving both the efficiency and gain of a printed antenna by using a superstrate layer is discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01011059
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