Printed slot loaded bow-tie antenna with super wideband radiation characteristics for imaging applications


Journal Article

A super wideband printed modified bow-tie antenna loaded with rounded-T shaped slots fed through amicrostrip balun is proposed for microwave and millimeter-wave band imaging applications. The modified slot-loaded bow-tie pattern increases the electrical length of the bow-tie antenna reducing the lower band to 3.1GHz. In addition, over the investigated frequency band up to 40 GHz, the proposed modified bow-tie pattern considerably flattens the input impedance response of the bow-tie resulting in a smooth impedance matching performance enhancing the reflection coefficient (S11) characteristics. The introduction of the modified ground plane printed underneath the bow-tie, on the other hand, yields to directional far-field radiation patterns with considerably enhanced gain performance. The S 11 and E-plane/H-plane far-field radiation pattern measurements have been carried out and it is demonstrated that the fabricated bow-tie antenna operates across a measured frequency band of 3.1-40 GHz with an average broadband gain of 7.1 dBi. © 2013 IEEE.

Full Text

Duke Authors

Cited Authors

  • Yurduseven, O; Smith, D; Elsdon, M

Published Date

  • January 1, 2013

Published In

Volume / Issue

  • 61 / 12

Start / End Page

  • 6206 - 6210

International Standard Serial Number (ISSN)

  • 0018-926X

Digital Object Identifier (DOI)

  • 10.1109/TAP.2013.2281353

Citation Source

  • Scopus