Back to results
US 4,471,493 AGranted
Wireless telephone extension unit with self-contained dipole antenna
AssigneeGTE Automatic Electric Inc.
InventorEdward A. Schober
Life of this patent
Estimating the term…
Abstract
A remote unit for use in a wireless extension telephone system having a self-contained dipole antenna. Utilizing the unique construction of the telephone instrument housing one element of the dipole is included in a planar element that functions normally to direct sound to a self-contained microphone and the other element of the antenna is a static shield used to protect components on printed circuit board included within the extension unit.
Claims10
A wireless extension telephone remote unit including:
- a housing;
- a printed circuit board included within said housing;
- a radio transmitter circuit located on said printed circuit board;
- a first antenna element included within said housing and located adjacent to said printed circuit board and electrically connected to said radio transmitter;
- a planar unit flexibly mounted to said housing;
- and a second antenna element located on said planar unit and electrically connected to said radio transmitter;
- said first antenna element and said second antenna element in combination comprising a dipole antenna connected to said radio transmitter.
4 more elements
Dependencies are inferred from the claim text.