High frequency wave glass antenna for an automobile and rear window glass sheet for an automobile
US7420517B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2007 |
| Grant date | Sep 2, 2008 |
| Priority date | — |
| Expiry date | Apr 17, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/36
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A plurality of heating wires 2 have a plurality of detours 1 formed therein, the heating wires 2 have inlets 10 formed therein for connection with the detours 1, and both ends of each of the inlets 10 and both ends of each of the detours 1 are connected by a pair of connection lines 9. When a shorter one of the shortest spacing between the paired connection lines 9 and the shortest spacing between both ends of the inlets 10 is called We, when the maximum width of the detours 1 in a horizontal direction is called Wr, when a received frequency has a wavelength of λ0 in the air, and when the formula of {(Wr−We)/2}=L1 is established, the formula of L1≧0.0053·λ0 is satisfied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.