Array Antenna Gain Enhancement With the Poynting Streamline Method
| Autor: | Junming Diao, Lu Liu, Karl F. Warnick |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
Axial ratio Aperture Acoustics Astrophysics::Instrumentation and Methods for Astrophysics 020206 networking & telecommunications 02 engineering and technology law.invention Dipole law ComputerApplications_MISCELLANEOUS Poynting vector 0202 electrical engineering electronic engineering information engineering Streamlines streaklines and pathlines Dipole antenna Electrical and Electronic Engineering Antenna gain Antenna (radio) Computer Science::Information Theory |
| Zdroj: | IEEE Antennas and Wireless Propagation Letters. 19:143-147 |
| ISSN: | 1548-5757 1536-1225 |
| Popis: | Streamlines of the Poynting vector field connect antenna figures of merit with the energy flow characteristics near a receiving antenna. Poynting streamlines properties and absorption aperture of antenna under different load conditions have been studied in this letter. Based on its Poynting streamline characteristics, the short-circuit dipole can be used as a parasitic element to direct the flow of energy, increase the absorption aperture, and enhance the gain of the array. Numerical examples show that this strategy can not only enhance the gain of dipole array, but also improve the gain of circularly polarized antenna array without deteriorating the axial ratio. Poynting streamline-based methods augment commonly used radiation-mode antenna analysis techniques by providing an intuitive and visual way to guide the design of antenna arrays. |
| Databáze: | OpenAIRE |
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