Common antenna for primary and secondary radar system

Communications: radio wave antennas – Antennas – Plural separate diverse type

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

343756, 343771, 343840, H01Q 1318, H01Q 19195, H01Q 2128

Patent

active

042849918

ABSTRACT:
A bifunctional antenna of a primary/secondary radar system comprises a reflector having a concave front surface formed with a row of slots along a horizontal generatrix, the slots lying in front of respective cavities excitable to radiate interrogation signals in a directive sum pattern and supplemental radiation in a differential control pattern designed to blank minor lobes of the interrogation pattern. Some of the cavities and slots are symmetrically duplicated on a dielectric cap covering the convex rear surface of the reflector. The reflector and its cap form a closed shell of dielectric material, specifically a glass mat impregnated with epoxy resin, overlain at the front by a fiber-glass fabric incorporating orthogonally intersecting insulated copper wires. The fabric also lines the inner walls of each cavity which is filled with dielectric material; its radiating slot is spanned only by horizontal wires paralleling the plane of polarization of target-seeking radiation from a source illuminating the reflector.

REFERENCES:
patent: 3039098 (1962-06-01), Bickmore
patent: 3550135 (1970-12-01), Bodmer
patent: 3701158 (1972-10-01), Johnson

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

Common antenna for primary and secondary radar system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-40393

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