Automotive window glass antenna
US5334989A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 1993 |
| Grant date | Aug 2, 1994 |
| Priority date | — |
| Expiry date | Mar 8, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/1271
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A known first antenna is arranged in a space of a rear window glass above a defogging heater element and constituted by horizontal and vertical conductive strips. In accordance with the present invention, a second antenna is provided which consists of a feed point and a pair of first and second elements connected to the feed point and arranged in a space of the window glass around the heater element. The first element has a vertical conductive strip arranged in an area of the space between the heater element and a lateral edge of the window glass. The first element further has in an area of the space above the first antenna or in a space defined between the upper and lower ends of the first antenna, at least one horizontal conductive strip or a T-shaped or inverted T-shaped conductive strip assembly having a longer horizontal strip portion and a shorter vertical strip portion, or at least two horizontal conductive strips connected at opposite ends by vertical conductive strips to constitute a rectangular loop, or at least two horizontal conductive strips connected at one ends by a vertical conductive strip to constitute a -shape. The second element is arranged in an area of the spa…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.