DocumentCode
1891730
Title
Superoscillatory antenna arrays for sub-diffraction focusing at the multi-wavelength range in a waveguide environment
Author
Wong, Alex M H ; Eleftheriades, George V.
Author_Institution
Edward S. Rogers Sr. Dept. of Electr. & Comput. Eng., Univ. of Toronto, Toronto, ON, Canada
fYear
2010
fDate
11-17 July 2010
Firstpage
1
Lastpage
4
Abstract
We presented a method of designing a superoscillatory waveform via analogy with superdirectivity. Using this method, we designed a superoscillatory antenna array which forms a sub-diffraction focus within a waveguide, 5 wavelengths away from the source. The subwavelength focus formed has a FWHM of 0.6 times that of the diffraction-limit; both the focal width and the image distance can be further improved with power and sensitivity trade-offs.
Keywords
electromagnetic wave diffraction; waveform analysis; waveguide antenna arrays; focal width; image distance; multiwavelength range; subdiffraction focus; subdiffraction focusing; subwavelength focus; superoscillatory antenna arrays; superoscillatory waveform; waveguide environment; Antenna arrays; Array signal processing; Electric fields; Electromagnetic waveguides; Focusing;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE
Conference_Location
Toronto, ON
ISSN
1522-3965
Print_ISBN
978-1-4244-4967-5
Type
conf
DOI
10.1109/APS.2010.5561826
Filename
5561826
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