Tunable horn antenna
US6867744B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2002 |
| Grant date | Mar 15, 2005 |
| Priority date | — |
| Expiry date | Apr 11, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/0053
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A family of FE dielectric-tuned antennas and a method for frequency tuning a wireless communications antenna are provided. The method comprises: forming a radiator; forming a dielectric with ferroelectric material proximate to the radiator; applying a voltage to the ferroelectric material; in response to applying the voltage, generating a dielectric constant; and, in response to the dielectric constant, communicating electromagnetic fields at a resonant frequency. Some aspects of the method further comprise: varying the applied voltage; and, modifying the resonant frequency in response to changes in the applied voltage. Modifying the resonant frequency includes forming an antenna with a variable operating frequency responsive to the applied voltage. Alternately stated, forming an antenna with a variable operating frequency includes forming an antenna with a predetermined fixed characteristic impedance, independent of the resonant frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.