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Antennas-with-integrated-windings

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Antennas with integrated windings

Details

Inventors: Rudisill, Charles A.;
Assignee: Ericsson Inc. (Research Triangle Park, NC)
Primary Examiner: Wong; Don
Assistant Examiner: Ho; Tan
Attorney, Agent or Firm: Myers Bigel Sibley & Sajovec, P.A.

Radiotelephone antennas include rigid antenna elements integral to the antenna substrate or housing. As such, the present invention configures the antenna without requiring a separate flex circuit winding to provide the conductive windings in the antenna. Methods for fabrication of the antenna are also described. Preferably, the antenna is formed in a two-shot molding process.

DETAILED DESCRIPTION It is therefore a first object of the present invention to provide an improved method for fabricating an antenna with conductive windings.
It is another object of the present invention to provide an improved multi-winding antenna.
It is yet another object of the present invention to provide a reliable, durable, and economical satellite antenna for a radiotelephone.
It is a further object of the present invention to provide an improved antenna which can be conveniently adapted for use with existing radiotelephone models.
These and other objects are satisfied by the present invention which includes an antenna with integrated windings formed thereon.
A first aspect of the invention is a radiotelephone antenna which comprises a longitudinally extending first member having at least one rigid conductive winding arranged in a first pattern thereon.
The antenna also includes a longitudinally extending second member having at least one rigid conductive winding arranged in a second pattern thereon.
The second member is configured to mate and engage with the first member to define an enclosed passage therebetween.
When the first and second members are engaged, the first and second pattern of conductive windings are electrically connected and geometrically aligned in a pattern so as to define a signal path.
Preferably, the first and second patterns radially translate along the length of the antenna in a helical pattern.
Advantageously, the antenna elements are formed directly onto the antenna housing.
Thus, using integral rigid antenna elements can reduce assembly time and labor costs and can reduce manufacturing build variability and improve durability.
In a second embodiment, the antenna comprises a cylindrical non-conductive antenna substrate with first and second opposing ends defining a central axis therethrough.
The antenna also includes a plurality of rigid conductive circuit windings integral to the antenna substrate, each of the plurality of conductive circuit windings spaced-apart from each other

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