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Optimal E-Field Vector Combination for a Highly Focused Antenna-Array
- Publication Year :
- 2014
-
Abstract
- A near-field highly focused circular phased-array antenna for 5.8-GHz radio frequency identification (RFID) applications is presented. The electric field (E-field) at the focus is enhanced by a constructive vector combination in a three-dimensional (3-D) coordinate system. The array dipoles of the antenna are oriented to enhance the energy confinement at the focus, and the radii of the circular array is optimized for lower sidelobe levels. As a result, the proposed design achieves an enhanced focalization of ≈ 4 dB with reduced sidelobe levels of ≈ 12 dB compared to earlier designs.
- Subjects :
- Engineering
business.industry
Phased array
TK7872.F5
Astrophysics::Instrumentation and Methods for Astrophysics
Near and far field
law.invention
Antenna array
Circular buffer
Optics
TK7871.6
law
Electric field
Electronic engineering
Dipole antenna
Electrical and Electronic Engineering
Antenna (radio)
business
Energy (signal processing)
Subjects
Details
- Language :
- English
- ISSN :
- 15361225
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....1579e0d9f7e20e47a9d76c2880f21241