Covert and broadband direction finding using low-profile slot spiral antennas
| Autor: | Brad R. Jackson |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Spiral antenna
Engineering Directional antenna business.industry 020206 networking & telecommunications Slot antenna 02 engineering and technology Adcock antenna Collinear antenna array Biconical antenna Optics 0202 electrical engineering electronic engineering information engineering business Omnidirectional antenna Monopole antenna |
| Zdroj: | 2016 USNC-URSI Radio Science Meeting. |
| DOI: | 10.1109/usnc-ursi.2016.7588516 |
| Popis: | A broadband direction finding (DF) array is presented in this work using low-profile slot spiral antennas. Often, DF systems use omnidirectional dipole or monopole antenna elements which can result in a limited bandwidth and an obvious visual signature. In contrast, the slot spirals employed in this work are low-profile and can be flush-mounted on metallic objects which can enable a covert DF implementation. Simulation results are shown using four slot spiral antenna elements placed on a vehicle model from 400 MHz to 1.2 GHz (100% fractional bandwidth). The near-constant characteristics of the slot spiral over a wide frequency range provides broadband DOA estimation accuracy performance. Results are shown for both vertically and horizontally polarized terrestrial incoming signals with various signal-to-noise ratios. |
| Databáze: | OpenAIRE |
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