Broadband Planar Modified Aperture Bowtie Antenna

Author

Pierce, Richard G. ; Blanchard, Andrew J. ; Henderson, Rashaunda M.

Author_Institution

Dept. of Electr. Eng., Univ. of Texas at Dallas, Richardson, TX, USA

Volume

12

fYear

2013

fDate

2013

Firstpage

1432

Lastpage

1435

Abstract

This letter presents a novel broadband planar antenna, the modified aperture bowtie. The design is based upon a bowtie-shaped aperture antenna fed with coplanar waveguide. The antenna and feed occupy a single plane, making the structure ideal for low-profile and conformal applications. The impedance bandwidth of the planar antenna is increased by altering the edge of the bowtie-shaped aperture. The radiation structure was numerically modeled using FEKO and HFSS electromagnetic solvers. The aperture was constructed and measured for comparison to the numerical solution. The fabricated antenna has a 54% bandwidth, an increase of 1.75 GHz at a center frequency of 6.4 GHz due to the modifications.

Keywords

UHF antennas; antenna feeds; antenna radiation patterns; aperture antennas; bow-tie antennas; broadband antennas; coplanar waveguides; electric impedance; electromagnetic waves; microwave antennas; planar antennas; FEKO electromagnetic solver; HFSS electromagnetic solver; antenna fabrication; antenna feed; bowtie-shaped aperture antenna; broadband planar antenna; coplanar waveguide; impedance bandwidth; Antenna measurements; Aperture antennas; Bandwidth; Broadband antennas; Impedance; Aperture antenna; broadband antenna; planar antenna;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2013.2288520

Filename

6654243