Design theory and modeling of aperture-coupled vertically mounted strip antenna

Author

Jang, Guk-Hyun ; Min, Woo-Ki ; Jeong, II-Bong ; Chrostodoulou, Christos ; Kim, Jeong-Phill

Author_Institution

Sch. of EE, Chung-Ang Univ., Seoul, South Korea

fYear

2009

fDate

1-5 June 2009

Firstpage

1

Lastpage

4

Abstract

The design theory and the equivalent circuit model of an aperture-coupled vertically mounted strip antenna were presented. Related circuit element values were calculated with the help of the network analysis. Based on the developed equivalent circuit, a C-band ACVMSA was designed with the help of the hybrid GA optimization algorithm. The computed input impedance was compared to the simulation and measured results, and reasonable agreement was observed. Radiation pattern was also calculated, and its gain and front-to-back ratio are 8.22 dBi and 16.5 dB. In addition, the broadband antenna was designed, and its fractional bandwidth is 18 %. Within the bandwidth, radiation pattern remains without noticeable change. All the results show the validity of the design theory and the usefulness of the proposed equivalent circuit model.

Keywords

antenna radiation patterns; aperture-coupled antennas; broadband antennas; equivalent circuits; genetic algorithms; microstrip antennas; antenna radiation pattern; aperture-coupled vertically mounted strip antenna; broadband antennas; equivalent circuit model; genetic algorithms; Algorithm design and analysis; Antenna radiation patterns; Antenna theory; Aperture antennas; Bandwidth; Broadband antennas; Computational modeling; Design optimization; Equivalent circuits; Impedance;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2009. APSURSI '09. IEEE

Conference_Location

Charleston, SC

ISSN

1522-3965

Print_ISBN

978-1-4244-3647-7

Type

conf

DOI

10.1109/APS.2009.5171678

Filename

5171678