Radio antenna

Details Radio antenna Radio antenna

1996-01-23

1998-10-20

Le, Hoanganh T.

Communications: radio wave antennas

Antennas

With radio cabinet

343895, 343900, H01Q 124

Patent

active

058253300

ABSTRACT:
An antenna configuration includes a rod antenna and a helical antenna that are independently operable. The helical antenna is composed of a helical coil installed within an antenna housing mounted on a main body of a communication device. A feeding connector is electrically coupled to a bottom portion of the helical coil to thereby connect the helical antenna to a circuit of the communication device. The rod antenna is composed of a rod functioning as a conductive metal core wire. The rod is surrounded by the helical coil and the feeding connector and is extendable from and retractable into the main body of the communication device. When the rod is retracted into the main body, the helical coil operates as the exclusive radiating element and operation of the rod antenna is disabled. When the rod is extended from the main body, the rod electrically short-circuits and disables operation of the helical coil, and thereby operates as the exclusive radiating element.

REFERENCES:
patent: 4121218 (1978-10-01), Irwin et al.
patent: 4868576 (1989-09-01), Johnson, Jr.
patent: 5204687 (1993-04-01), Elliott et al.
patent: 5317325 (1994-05-01), Bottomley
patent: 5343213 (1994-08-01), Kottke et al.
patent: 5353036 (1994-10-01), Baldry
patent: 5389938 (1995-02-01), Harrison
patent: 5426440 (1995-06-01), Shimada
patent: 5434582 (1995-07-01), Koike et al.
patent: 5438339 (1995-08-01), Itoh et al.
patent: 5446469 (1995-08-01), Makino
patent: 5455595 (1995-10-01), Yokoyama et al.
patent: 5467096 (1995-11-01), Takamoro et al.
patent: 5469177 (1995-11-01), Rush et al.
patent: 5479178 (1995-12-01), Ha
patent: 5612704 (1997-03-01), Cole

Affiliated with

Also associated with

Rating

Radio antenna does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Radio antenna, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio antenna will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-249361