Horn antenna array

Patent metadata

Field	Value
Publication number	US-10840601-B2
Application number	US-201616085329-A
Country	US
Kind code	B2
Filing date	Mar 14, 2016
Priority date	Mar 14, 2016
Publication date	Nov 17, 2020
Grant date	Nov 17, 2020

Abstract

A horn antenna array is provided with a plurality of horn antennas arranged in one direction. Each of the plurality of horn antennas includes two pairs of inclined planes, which define a frustum-shape horn, and on an electromagnetic wave incident side of the horn, ends of a pair of inclined planes arranged in the one direction out of the two pairs of inclined planes project from ends of the other pair of inclined planes out of the two pairs of inclined planes.

First claim

The invention claimed is:

1. A horn antenna array comprising a plurality of horn antennas arranged in one direction, wherein
each of the plurality of horn antennas includes:
a first side, a second side, a first pair of inclined planes, and second pair of inclined planes, the first and second pairs of inclined planes extending from the first side toward the second side, which define a frustum-shape horn, and
ends of the first pair of inclined planes are arranged in the one direction and extend beyond ends of the second pair of inclined planes.

2. The horn antenna array according to claim 1 , wherein an angle made by the first pair of inclined planes arranged in the one direction is equal to an angle made by the second pair of inclined planes.

3. The horn antenna array according to claim 2 , wherein
the horn antenna array further comprises a biconvex cylindrical lens extending in the one direction, and
the ends of the first pair of inclined planes arranged in the one direction are arranged to be brought into contact with or close to a convex surface of the cylindrical lens.

4. The horn antenna array according to claim 3 , wherein an angle made by the pair of inclined planes arranged in the one direction corresponds to a converging angle of the cylindrical lens.

5. The horn antenna array according to claim 1 , wherein
the horn antenna array further comprises a biconvex cylindrical lens extending in the one direction, and
the ends of the first pair of inclined planes arranged in the one direction are arranged to be brought into contact with or close to a convex surface of the cylindrical lens.

6. The horn antenna array according to claim 5 , wherein an angle made by the first pair of inclined planes arranged in the one direction corresponds to a converging angle of the cylindrical lens.

7. The horn antenna array according to claim 1 , further comprising a pair of common inclined planes each made up of portions of the first pair of inclined planes of each of the plurality of horn antennas that extend from the ends of the second pair of inclined planes of each of the plurality of horn antennas to the ends of the first pair of inclined planes of the plurality of horn antennas.

Assignees

• Pioneer Corp

Inventors

• Ochiai Takanori
• Tanaka Hiroyuki
• Kawano Tatsuya
• Ogasawara Masakazu

Classifications

• H01Q21/00

  Antenna arrays or systems (arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system H01Q3/00) · CPC title

• H01Q13/02 Primary

  Waveguide horns · CPC title

• H01Q17/00

  Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems · CPC title

• H01Q21/064

  using horn or slot aerials (slotted waveguides arrays H01Q21/005) · CPC title

• A61M2230/65

  Impedance, e.g. conductivity, capacity · CPC title