Title :
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
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;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2013.2288520
