Protected antenna apparatus

Communications: radio wave antennas – Antennas – With housing or protective covering

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

343825, 343828, H01Q 142

Patent

active

056401698

ABSTRACT:
A protected antenna apparatus including an elongated tube; a cable having an upper end with a pair of separate bare leads extending therefrom, a lower end with a connector secured thereto, and an intermediate portion extended between the ends; a twin-lead transmission line having a central axis, a free upper end, a lower end with the bare leads extending therefrom and interconnected together, an intermediate location therebetween wherein each lead is connected with one of the bare leads of the cable, and a notch formed on an upper extent of the line at a location between the intermediate location and the upper end to thereby divide one of the leads into two different pieces and thus create a J-pole antenna having a short leg, a long leg, and an impedance matching stub portion therebetween, and wherein the antenna transmits radio signals of a characteristic frequency as a function of the lengths of the legs and the stub portion; and a coupling mechanism for securing the antenna within the tube and along a longitudinal extent thereof.

REFERENCES:
patent: 4366485 (1982-12-01), Hodgkinson
patent: 4644364 (1987-02-01), Parks
patent: 5451971 (1995-09-01), Grossman et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

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

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

Rate now

     

Profile ID: LFUS-PAI-O-2161110

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.