Integrated spiral and top-loaded monopole antenna

Details Integrated spiral and top-loaded monopole antenna Integrated spiral and top-loaded monopole antenna

2005-02-22

2005-02-22

Nguyen, Hoang V. (Department: 2821)

Communications: radio wave antennas

Antennas

Plural separate diverse type

C343S895000, C343S713000

Reexamination Certificate

active

06859181

ABSTRACT:
A low-profile antenna provides dual simultaneous operation. A first antenna has a circular polarization radiation pattern. A monopole antenna includes a hollow tube and is top-loaded by locating a disk on top of the hollow tube. A support structure positions the monopole antenna between the first antenna and a ground plane. The first antenna is a four arm spiral antenna. The four arm spiral antenna and monopole antenna are each fed by a cable with a first conductor and a second conductor. The radiation pattern of the four arm spiral antenna is maximum at forty-five degrees above the horizon and is null toward the horizon. The cable excites the monopole antenna with respect to the ground plane to transmit/receive vertical polarized signals. The radiation pattern of the monopole antenna is maximum towards the horizon. The first antenna and the monopole antenna operate simultaneously.

REFERENCES:
patent: 3838429 (1974-09-01), Reggia
patent: 4030100 (1977-06-01), Perrotti
patent: 5257032 (1993-10-01), Diamond et al.
patent: 5457469 (1995-10-01), Diamond et al.

Affiliated with

Also associated with

Rating

Integrated spiral and top-loaded monopole 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 Integrated spiral and top-loaded monopole antenna, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated spiral and top-loaded monopole antenna will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3484413