A modified bow-tie slot antenna fed by a coplanar waveguide

Author

Chen, Shih-Yuan ; Hsu, Powen

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

1

fYear

2004

fDate

20-25 June 2004

Firstpage

799

Abstract

A modified CPW-fed bow-tie slot antenna is proposed; it has a wider impedance bandwidth than that of the conventional CPW-fed bow-tie slot antenna. The antenna structure remains simple and the better impedance matching is obtained through the insertion of a 180-degree delay slotline between the feeding CPW and one of the two parts of the bow-tie slot. A 47.4% impedance bandwidth, 2.3 to 5.1 dBi in-band antenna gains, and broadside bidirectional radiation patterns are measured and presented for an H-band prototype antenna.

Keywords

antenna feeds; antenna radiation patterns; coplanar waveguides; delay lines; electric impedance; impedance matching; slot antennas; slot lines; 2.3 to 5.1 dB; 3.5 to 5.7 GHz; CPW feed; H-band antenna; broadside bidirectional radiation patterns; coplanar waveguide feed; delay slotline; impedance bandwidth; impedance matching; in-band antenna gain; modified bow-tie slot antenna; Antenna feeds; Antenna measurements; Antenna radiation patterns; Bandwidth; Coplanar waveguides; Delay; Impedance matching; Impedance measurement; Slot antennas; Slotline;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2004. IEEE

Print_ISBN

0-7803-8302-8

Type

conf

DOI

10.1109/APS.2004.1329791

Filename

1329791