U-dipole radiating elements and antennas

Details U-dipole radiating elements and antennas U-dipole radiating elements and antennas

1997-02-21

1999-06-29

Wong, Don

Communications: radio wave antennas

Antennas

Fractional, multiple, or full wave length linear type

343825, H01Q 930

Patent

active

059174579

ABSTRACT:
U-dipole radiating elements (10) and associated feed conductors (20, 22) are cut or stamped from brass sheet stock. Each U-dipole (10) is then bent up at 90 degrees to the signal distribution conductor (22) which is supported in front of a reflector (12). The U-dipole element (10) includes a first dipole-type conductor segment (14) connected near one end to a feed segment (20) which is the sole signal feed path to the U-dipole element. A second dipole-type conductor segment (16), which is spaced from and parallel to and coextensive with first segment (14), is connected to the other end of the first segment (14). An antenna may include one or more individual U-dipole elements cut from sheet stock and connected to feed points. In a linear array antenna configuration, a group of U-dipole elements (10a-10b) and associated signal feed network components may be cut in a unitary form from a sheet of conductive material and supported in front of a reflector surface. This provides a relatively simple, low cost antenna with a minimum of junctions between components and capable of providing low intermodulation product performance.

REFERENCES:
patent: 4800393 (1989-01-01), Edward et al.
patent: 5406295 (1995-04-01), Barinski et al.
patent: 5451971 (1995-09-01), Grossman et al.
patent: 5526003 (1996-06-01), Ogawa et al.
patent: 5532708 (1996-07-01), Krenz et al.
patent: 5724051 (1998-03-01), Mailandt et al.

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