Glass antenna for vehicle and window glass for vehicle
US9093751B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2013 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Nov 22, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/42
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A glass antenna includes a shared antenna conductor which meets a first frequency band and a second frequency band higher than the first frequency band and a feeding part connected to the shared antenna conductor. The shared antenna conductor includes a first element extended from the feeding part as a starting point and a second element extended from the first element as a starting point. At least a part of the first element and the second element configure a semi-loop form. When a wavelength in air in a central frequency of the second frequency band is λ02, a glass shortening coefficient of wavelength is k2 and λg2=λ02·k2, a conductor length of the first element is 0.65 λg2 or higher and 1.0 λg2 or lower, and the shortest distance between a defogger provided in window glass and the shared antenna conductor is 15 mm or longer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.