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Development of a Low Radar Cross Section Antenna With Band-Notched Absorber
- Source :
- IEEE Transactions on Antennas and Propagation. 66:582-589
- Publication Year :
- 2018
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2018.
-
Abstract
- A low radar cross section (RCS) antenna designed with band-notched absorber is described. First, a dual-polarization absorber with relative bandwidth more than 80% is designed using loaded resistors. Pairs of circular slot resonators and metal strip array resonators are introduced in the absorber to realize a notch band with full reflectance in the vertical polarization, while a wide absorption band in the horizontal polarization is maintained. The proposed band-notched absorber is thus realized. Within the notch band, the absorber can be served as a metal ground for antenna; while a great RCS reduction is obtained out of the notch band and in the horizontal polarization band. Then, a dipole antenna rigorously designed is mounted above the band-notched absorber, whose operating frequency is exactly in accordance with that of the notch band. The proposed low RCS antenna is established based on assembling the dipole antenna and the band-notched absorber together. The measured results demonstrate that the proposed antenna has fairly good radiation patterns. Added to that, more than 10 dB RCS reduction in two polarizations is realized simultaneously compared with that one of a conventional dipole antenna.
- Subjects :
- Radar cross-section
Materials science
business.industry
020208 electrical & electronic engineering
020206 networking & telecommunications
02 engineering and technology
Quantitative Biology::Cell Behavior
law.invention
Resonator
Optics
law
0202 electrical engineering, electronic engineering, information engineering
Reflection (physics)
Dipole antenna
Electrical and Electronic Engineering
Resistor
Antenna (radio)
Reflection coefficient
business
Absorption (electromagnetic radiation)
Subjects
Details
- ISSN :
- 15582221 and 0018926X
- Volume :
- 66
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Antennas and Propagation
- Accession number :
- edsair.doi...........7ab3feed3f6c0800792ac17643da37d8