Impact of Substrate Size on the Radiation Characteristics of an H-plane 5-Elements Linear Aperture Coupled Microstrip Patch Array Antenna

Title & Authors
Impact of Substrate Size on the Radiation Characteristics of an H-plane 5-Elements Linear Aperture Coupled Microstrip Patch Array Antenna
Bak, Hye-Lin; Kim, Jae-Hyun; Kim, Boo-Gyoun;

Abstract
The effect of substrate size on the radiation characteristics of an H-plane 5-elements linear array antenna with an aperture coupled microstrip patch antenna (ACMPA) as unit element is investigated. The distance between the patch center and the substrate edge on the E-plane ($\small{d_E}$) and that on the H-plane ($\small{d_H}$) at which the maximum broadside gain of an H-plane 5-elements linear array antenna occurs are the same to those of single ACMPA using a unit element. Besides, $\small{d_E}$ and $\small{d_H}$ at which the minimum broadside gain of an H-plane 5-elements linear array antenna occurs are almost the same to those of single ACMPA using a unit element. The edge effect on the radiation characteristics of an H-plane 5-elements linear array antenna is mainly determined by $\small{d_E}$. The optimum substrate size for the radiation characteristics of an H-plane linear array antenna could be obtained from that of single ACMPA using a unit element of an H-plane linear array antenna.
Keywords
aperture coupled microstrip patch antenna;linear array antenna;substrate size;radiation characteristics;edge effect;
Language
Korean
Cited by
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