Antenna adapted to operate in a plurality of frequency bands

Details Antenna adapted to operate in a plurality of frequency bands Antenna adapted to operate in a plurality of frequency bands

1998-02-27

2000-10-03

Le, Hoanganh

Communications: radio wave antennas

Antennas

With radio cabinet

343895, 343725, H01Q 124

Patent

active

06127979&

ABSTRACT:
The present disclosure is related to an antenna (129) adapted to receive signals in multiple frequency bands, and comprises a fixed whip antenna (406) and a helical coil antenna (408) coupled to a single feedpoint. The antenna may also include a monopole common to the fixed whip antenna and the helical coil antenna. A single matching circuit (130) is adapted to provide matching for both the whip antenna and the helical coil antenna. According to one embodiment, the antenna can also be reduced in size by attaching a disc (704) to the end of the whip portion of the antenna, while decreasing the pitch of the helical coil. Finally, a clip (210) can be used below a threaded nut of a housing to provide a feed point for the antenna to further reduce the electrical lengths of the fixed whip antenna and a helical coil antenna.

REFERENCES:
patent: 2419611 (1947-04-01), Walsh
patent: 4121218 (1978-10-01), Irwin et al.
patent: 4229743 (1980-10-01), Vo et al.
patent: 4868576 (1989-09-01), Johnson, Jr.
patent: 5446469 (1995-08-01), Makino
patent: 5583520 (1996-12-01), Thill
patent: 5594457 (1997-01-01), Wingo
patent: 5612704 (1997-03-01), Cole
patent: 5710567 (1998-01-01), Funke

Affiliated with

Also associated with

Rating

Antenna adapted to operate in a plurality of frequency bands does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Antenna adapted to operate in a plurality of frequency bands, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antenna adapted to operate in a plurality of frequency bands will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-200198