Microstrip antenna

Patent metadata

Field	Value
Publication number	US-9627775-B2
Application number	US-201414252009-A
Country	US
Kind code	B2
Filing date	Apr 14, 2014
Priority date	Apr 16, 2013
Publication date	Apr 18, 2017
Grant date	Apr 18, 2017

Abstract

To provide a microstrip antenna that can radiate electromagnetic waves in two or more different directions while suppressing an increase in manufacturing cost. The microstrip antenna is configured to include: a dielectric substrate 10 that is adapted to be of a folded flat plate shape; two or more radiating patterns 2 for radiating electromagnetic waves; and a connecting pattern 3 for mutually connecting the radiating patterns 2 and feeding electricity from a common feeding point 4 to each of the radiating patterns 2 . The radiating patterns 2 and connecting pattern 3 are respectively adapted as microstrip lines formed on the dielectric substrate 10 , and the dielectric substrate 10 is folded such that the connecting pattern 3 intersects with a ridge line 5 , and has two or more radiating surfaces 10 a to 10 c of which normal directions are mutually different.

First claim

The invention claimed is:

1. A microstrip antenna comprising:
two or more radiating patterns for radiating electromagnetic waves; and
a connecting pattern for mutually connecting said radiating patterns and feeding electricity from a common feeding point to each of said radiating patterns, wherein:
said radiating patterns and said connecting pattern are respectively adapted as microstrip lines formed on a dielectric substrate;
said dielectric substrate is adapted to be of a flat plate shape that is folded such that a ridge line is formed between two or more radiating surfaces of which normal directions are mutually different;
each of said radiating patterns is formed on said radiating surface different from each other, and includes a feed line and two or more radiating elements; and
said connecting pattern intersects with said ridge line to connect said feed lines mutually.

2. The microstrip antenna according to claim 1 , wherein:
each of said radiating surfaces is adapted to be of an elongate shape;
said feed line substantially linearly extends in a longitudinal direction of a corresponding one of said radiating surfaces; and said radiating elements are arranged along the feed line.

3. The microstrip antenna according to claim 1 , wherein
each of said radiating surfaces is adapted to be of an elongate shape of which a longitudinal direction is a direction substantially parallel to said ridge line.

4. The microstrip antenna according to claim 1 , wherein
each of said radiating surfaces is adapted to be of an elongate shape of which a longitudinal direction is a direction intersecting with said ridge line.

5. The microstrip antenna according to claim 1 , wherein
said dielectric substrate is made of fluorine resin containing inorganic fiber.

6. The microstrip antenna according to claim 1 , wherein
a ground layer covering a back surface of said dielectric substrate is formed, and a slit is formed in a location of said ground layer, the location facing to said ridge line.

Assignees

• Nippon Pillar Packing

Inventors

• Nakatsu Akira
• Onishi Koji

Classifications

• H01Q21/08

  the units being spaced along or adjacent to a rectilinear path {(waveguide fed H01Q21/0037)} · CPC title

• H01Q21/30

  Combinations of separate antenna units operating in different wavebands and connected to a common feeder system · CPC title

• H01Q21/29

  Combinations of different interacting antenna units for giving a desired directional characteristic (H01Q25/00 takes precedence) · CPC title

• H01Q21/0075 Primary

  Stripline fed arrays (H01Q21/065 takes precedence) · CPC title