Ultra wide-band radar antenna for concrete penetration

Details Ultra wide-band radar antenna for concrete penetration Ultra wide-band radar antenna for concrete penetration

1995-08-11

1997-06-17

Hajec, Donald T.

Communications: radio wave antennas

Antennas

Wave guide type

343776, 343785, H01Q 1300

Patent

active

056401680

ABSTRACT:
A pyramidal horn antenna that decreases ringing in radar systems that are placed against a solid volume of e.g. concrete or wood for finding an object in or behind the solid volume. The antenna includes a solid, pyramid-shaped dielectric, the pyramid shape including a rectangular base and four triangular sides that extend from the base to meet at the apex of the pyramid. Two conductive triangular plates overlay opposite ones of the four sides of the pyramid, each of the plates including an electrical connection for coupling the plate to a radar system. The pyramid-shaped dielectric has a dielectric constant that approximates the dielectric constant of the solid volume, and therefore provides an impedance match between the antenna and the solid volume.

REFERENCES:
patent: 3389394 (1968-06-01), Lewis
patent: 3414903 (1968-12-01), Bartlett et al.
patent: 3482251 (1969-12-01), Bowes
patent: 3611396 (1971-10-01), Jones

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