Enhanced guided surface waveguide probe
US9893403B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2016 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Aug 16, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/52
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Various examples are provided for enhanced guided surface waveguide probes, systems and methods. In one example, a guided surface waveguide probe includes a charge terminal comprising a upper terminal portion coupled to a lower terminal portion through a variable capacitance. In another example, a method includes positioning the charge terminal at a defined height over a lossy conducting medium; adjusting a phase delay (Φ) of a feed network connected to the charge a terminal to match a wave tilt angle (Ψ) corresponding to a complex Brewster angle of incidence (θi,B) associated with the lossy conducting medium; adjusting the variable capacitance based upon an image ground plane impedance (Zin) associated with the lossy conducting medium; and exciting the charge terminal with an excitation voltage via the feed network. The excitation voltage can establish an electric field that couples into a guided surface waveguide mode along a surface of the lossy conducting medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.