A study of the broadband printed rectangular slot antenna with a 3D microstrip-line feed

Author

Chen, Wen-Shan ; Kao, Chin-Hsin

Author_Institution

Dept. of Electron. Eng., Southern Taiwan Univ. of Technol., Tainan Hsien, Taiwan

Volume

2A

fYear

2005

fDate

3-8 July 2005

Firstpage

545

Abstract

We propose a new design of a broadband printed rectangular slot antenna with a 3D microstrip-line feed. Such a loaded 3D microstrip-line feed retains low profile and easy fabrication advantages. By introduction of the 3D microstrip-line feed of the rectangular slot, a broadband impedance matching of the rectangular slot over a large frequency band can be achieved. In addition, by adjusting the tuning structure of the microstrip-line feed near the side perpendicular to microstrip line, a very broadband operation of triangular slot antenna can be obtained. In general, the obtained broadband bandwidth can be greater than 2.5 times that of a conventional printed wide rectangular slot antenna (-20%). In the proposed design, the impedance bandwidth of about 55% has been obtained. Antenna designs and typical experimental results of the proposed antenna are shown and discussed.

Keywords

antenna feeds; broadband antennas; impedance matching; microstrip antennas; slot antennas; tuning; 3D microstrip-line feed; broadband impedance matching; broadband printed rectangular slot antenna; triangular slot antenna; tuning structure; Bandwidth; Broadband antennas; Frequency; Impedance matching; Loaded antennas; Microstrip antennas; Microwave antennas; Pulse shaping methods; Shape; Slot antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2005 IEEE

Print_ISBN

0-7803-8883-6

Type

conf

DOI

10.1109/APS.2005.1551867

Filename

1551867