Broadband Planar Modified Aperture Bowtie Antenna

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.

[1]  T. Lee,et al.  Application of magnetotelluric survey for development of deep geothermal water at Seokmo Island, Korea , 2009 .

[2]  J. Volakis,et al.  Frequency-Scaled UWB Inverted-Hat Antenna , 2010, IEEE Transactions on Antennas and Propagation.

[3]  Yu-De Lin,et al.  Coplanar waveguide-fed uniplanar bow-tie antenna , 1997 .

[4]  Richard Gordon Pierce.  Modified aperture bowtie antenna , 2011 .

[5]  R. Bansal,et al.  Antenna theory; analysis and design , 1984, Proceedings of the IEEE.

[6]  M. Yamamoto,et al.  A study of a leaf-shaped bowtie slot antenna for UWB applications , 2012, 2012 International Symposium on Antennas and Propagation (ISAP).

[7]  Atef Z. Elsherbeni,et al.  A coplanar waveguide bow-tie aperture antenna , 2002, IEEE Antennas and Propagation Society International Symposium (IEEE Cat. No.02CH37313).

[8]  C.-I.G. Hsu,et al.  Small CPW-Fed Band-Notched Ultrawideband Rectangular Aperture Antenna , 2008, IEEE Antennas and Wireless Propagation Letters.

[9]  Jordi Romeu Robert,et al.  On the behavior of the Sierpinski multiband fractal antenna , 1998 .