Radiation Characteristics of a Probe-Fed Microstrip Patch Antenna on a Finite Grounded High Permittivity Substrate

- Journal title : Journal of Electrical Engineering and Technology
- Volume 10, Issue 4, 2015, pp.1738-1745
- Publisher : The Korean Institute of Electrical Engineers
- DOI : 10.5370/JEET.2015.10.4.1738

Title & Authors

Radiation Characteristics of a Probe-Fed Microstrip Patch Antenna on a Finite Grounded High Permittivity Substrate

Kwak, Eun-Hyuk; Yoon, Young-Min; Kim, Boo-Gyoun;

Kwak, Eun-Hyuk; Yoon, Young-Min; Kim, Boo-Gyoun;

Abstract

Radiation characteristics of a probe-fed rectangular microstrip patch antenna printed on a finite grounded high permittivity substrate are investigated systematically for various square grounded dielectric substrate sizes with several thicknesses and dielectric constants by experiment and full wave simulation. The effect of the substrate size on the radiation characteristics of a rectangular patch antenna is mainly determined by the effective dielectric constant of surface waves on a grounded dielectric substrate. As the effective dielectric constant of surface waves increases, the substrate sizes for the maximum broadside gain and the required onset for a large magnitude of squint angle decrease, while the variations of the broadside gain, the front-to-back ratio, and the magnitude of squint angle versus the substrate size increase due to the increase of the power of the surface wave.

Keywords

Radiation pattern;Microstrip patch antenna;Finite grounded dielectric substrate;Effective dielectric constant;Surface wave;High permittivity substrate;

Language

English

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