Title :
Efficiency enhancement of microstrip antenna by elevating radiating edges of patch
Author :
Kim, Yonghoon ; Lee, Gil-Young ; Nam, Sangwook
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Seoul Nat. Univ., South Korea
Abstract :
A new structure for a microstrip patch antenna fabricated on a highly lossy and thin FR4 substrate is presented. Elevated radiating edges of the metallic patch with notches as inductive loading form the patch antenna. This structure effectively reduces the dielectric loss and enhances the radiation efficiency. The proposed antenna has been designed and tested at 3.1 GHz as an example. It showed increased radiation power levels of more than 3 dB in both E- and H-plane radiation patterns when compared with those of a conventional planar patch antenna, indicating enhanced radiation efficiency.
Keywords :
antenna radiation patterns; dielectric losses; microstrip antennas; 3.1 GHz; E-plane radiation pattern; H-plane radiation pattern; dielectric loss; highly lossy substrate; inductive loading; metallic patch; microstrip antenna; notches; patch radiating edges elevation; radiation efficiency enhancement; thin FR4 substrate;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030899
