Graduation Year
2009
Document Type
Thesis
Degree
M.S.E.E.
Degree Granting Department
Electrical Engineering
Major Professor
Thomas M. Weller, Ph.D.
Committee Member
Jing Wang, Ph.D.
Committee Member
Kenneth Buckle, Ph.D.
Keywords
: CPW slot, cpw-fed slot, reflector, bi-directional feed, series feed, beam-steering, C-band
Abstract
In this thesis, a cavity-backed slot antenna array is designed for relatively wide instantaneous bandwidth, high gain and low sidelobes. The array consists of four, rectangular, slot elements, arranged side-by-side in a linear array and developed around 5GHz. Two feed points, at opposing sides of the printed array, each excite two of the slot elements through a series feed. This bidirectional feed presents symmetry to the design and prevents the tendency of beam-drift versus frequency as is common with many series-fed arrays. While being fed in-phase, the array will maintain boresight at broadside over the entire operating bandwidth. Also, the additional port allows for the potential introduction of a phase offset and, therefore, beam tilt. Finally, the printed array is designed to function within a quarter-wave, metallic cavity to achieve unidirectional radiation and improve gain.
Scholar Commons Citation
Mcknight, James W., "A Cavity-backed Coplanar Waveguide Slot Antenna Array" (2009). USF Tampa Graduate Theses and Dissertations.
https://digitalcommons.usf.edu/etd/2096
