Planar antenna and array antenna
US7026993B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2003 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Nov 5, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/065
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A planar antenna has a radiating element that radiates electric wave, and an earthing conductive plate that reflects the electric wave radiated from the radiating element. There is formed a space between the earthing conductive plate and the radiating element. The radiating element has a strip-shaped central conductive part with a length corresponding to the half wavelength of a first transmission radio frequency signal, and strip-shaped conductive parts with a length corresponding to the half wavelength of a second transmission radio frequency signal that has a frequency different from that of the first transmission radio frequency signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.