Multiband high frequency communication antenna with adjustable s

Details Multiband high frequency communication antenna with adjustable s Multiband high frequency communication antenna with adjustable s

1977-08-19

1979-02-20

Lieberman, Eli

Communications: radio wave antennas

Antennas

Slot type

343874, H01Q 1312

Patent

active

041410149

ABSTRACT:
A portable multiband H.F. antenna that has minimum ground area requirements and that is capable of transmitting electromagnetic wave radiation with horizontal polarization, azimuth plane omnidirectional patterns and a null in the vertical beam pattern is realized by means of an easily erectable tower type radiator. The tower structure has adjacent conductive leg members that define an elongated antenna slot aperture the total length of which is resonant to the lowest operating frequency band. A microwave transmission line resides along one side of the slot and the slot aperture is fed by shorting the transmission line to the oposite side of the slot. Operation at higher frequency bands is achieved by shorting out sections of the slot aperture on both sides of the feed. An array of radiating slot apertures can be provided by shorting the full slot aperture into sections and feeding each slot section separately. The addition of capacitance to the feed circuit permits operation at frequency bands below that provided for by the full slot aperture length.

REFERENCES:
patent: 2600179 (1952-06-01), Alford
patent: 2794184 (1957-05-01), Kolar et al.
patent: 2807019 (1957-09-01), Darling
patent: 2960694 (1960-11-01), Serniuk

Affiliated with

Also associated with

Rating

Multiband high frequency communication antenna with adjustable s does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-260605