Dielectric lens, dielectric lens device, design method of dielectric lens, manufacturing method and transceiving equipment of dielectric lens
US7355560B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 22, 2006 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | May 11, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q15/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A design process first determines a desired aperture distribution, then converts the electric power conservation law, Snell's law on the rear face side of a dielectric lens, and the formula representing light-path-length constraint, into simultaneous equations, and computes the shapes of the surface and rear face of the dielectric lens depending on the azimuthal angle θ of a primary ray from the focal point of the dielectric lens to the rear face of the dielectric lens, and then reduces the light path length in the formula showing light-path-length constraint by an integral multiple of the wavelength when the coordinates on the surface of the dielectric lens reach a predetermined restriction thickness position. A dielectric lens is designed by sequentially changing the lazimuthal angle θ from its initial value, and also repeating the second and third steps. Thus, downsizing and quantification is realized by zoning while keeping antenna properties at the time of constituting a dielectric lens antenna in a good condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.