Electrical connectors – Preformed panel circuit arrangement – e.g. – pcb – icm – dip,... – For receiving coaxial connector
Reexamination Certificate
2000-05-15
2001-07-24
Patel, Tulsidas (Department: 2839)
Electrical connectors
Preformed panel circuit arrangement, e.g., pcb, icm, dip,...
For receiving coaxial connector
Reexamination Certificate
active
06264475
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to coaxial connectors for carrying high frequency radio signals and in particular to a receptacle adapted for attachment to glass.
The widespread availability of wireless telecommunication services such as cellular telephones has created an increasing demand upon the manufacturers of automobiles and automobile accessories to adapt cellular telephone equipment for use in vehicles. One particular artifact of most mobile cellular telephones presently in use is the so-called “pig tail” type antenna which is typically seen mounted to a trunk lid or roof or adjacent the top portion of a rear glass in a vehicle. While this type of antenna works well for its intended purpose, it is prone to breakage either through accident or vandalism. Furthermore, certain owners of luxury and sports cars believe that by attaching an external antenna, they have detracted from the esthetic beauty of their expensive automobile.
This situation has lead to the development of a type of cellular telephone antenna which is screened directly onto the rear glass of a vehicle. This antenna, which is typically created using silk screening techniques analogous to those techniques used to manufacture a heater-defroster element, apply a coating of conductive material in an appropriate pattern on the glass for supporting radio wave propagation and reception.
However, this type of radio antenna which is embedded in the window creates a new problem. In particular, the radio transceiver is typically mounted in the vehicle interior, the trunk, or other place which is out of sight. A coaxial cable is then run from the remotely located transceiver to the window antenna. While in the past there have been developed certain techniques for passing the radio frequency signals from the coaxial cable through the glass to an externally mounted pig tail type antenna, these techniques cannot be directly adapted to connecting to an antenna which is embedded into the window.
SUMMARY OF THE INVENTION
The present invention is a receptacle for use with an antenna such as used with cellular telephone equipment that attaches directly to glass such as in the rear window of a vehicle. The configuration of the receptacle makes it compatible with the glass embedded antenna on one hand as well as being compatible with standard coaxial signaling connectors.
More particularly, the invention consists of a central insulator portion preferably formed in a cylindrical shape. A pair of solder pads are disposed adjacent the cylinder to provide connections to a ground lead and a signal lead on the glass. The solder pad associated with the ground lead is connected to a metallic tab and is inserted into the top of the insulator cylinder. The signal pad is connected at right angles to a center post which is placed through the bottom of the center insulator. The post is adapted to receive the center conductor of a mating coaxial connector. The cylinder insert is adapted and shaped to mate with the outer dimensions of the outer conductor of the meeting coaxial connector.
The receptacle provides low loss to radio frequency energy passing through it while providing, via the ground pad and signal pad, a convenient way to mount to the glass such as with solder. The connector therefore provides a low strain on the glass avoiding breakage of the window. At the same time, a component is provided which may withstand the high temperature extremes encountered in applications such as the placement in a rear window of an automobile.
REFERENCES:
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patent: 4360244 (1982-11-01), Forney, Jr. et al.
patent: 5322453 (1994-06-01), Resnick et al.
patent: 5466160 (1995-11-01), Ogura
patent: 5580277 (1996-12-01), Emery
patent: 5662480 (1997-09-01), Togashi
patent: 5752839 (1998-05-01), Fiacco et al.
patent: 5772470 (1998-06-01), Togashi
patent: 6074217 (2000-06-01), Maruyama et al.
patent: 6152750 (2000-11-01), Huguenet et al.
“Coaxicon® Series MCX Microminiature Coaxial Connectors” pp. 1-2 (Apr. 1, 1999).
“MCX Conductors” pp. 1-3 (Apr, 1. 1999).
Antaya Technologies Corporation
Hamilton Brook Smith & Reynolds PC
Patel Tulsidas
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