Title:
PATCH ANTENNA DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/053235
Kind Code:
A1
Abstract:
The present invention comprises: a double-ridge wave guide (1) having a double-ridge wave guide tube part (11) that has first protrusions (112a, 112b) disposed opposing each other, through which a first radio wave propagating in a first propagation mode propagates, and in which the cut-off frequency, of a second radio wave, in a second propagation mode different from the first propagation mode is set at a frequency higher than the frequency of the second radio wave, and having a first signal conductor (12) that inputs, to the double-ridge wave guide tube part (11), a high frequency signal to be converted to the first radio wave by the double-ridge wave guide tube part (11); a quad-ridge wave guide (2) having a quad-ridge wave guide tube part (21) that is connected, at the other end thereof, to one end of the double-ridge wave guide tube part (11), that has second protrusions (212a, 212b) disposed opposing each other in a manner continuous to the first protrusions (112a, 112b) and has third protrusions (213a, 213b) disposed opposing each other between the second protrusions (212a, 212b), and through which the first and second radio waves propagate, and having a second signal conductor 22 that inputs, to the quad-ridge wave guide tube part (21), a high frequency signal to be converted to the second radio wave by the quad-ridge wave guide tube part (21); and a patch conductor holder (3) that is disposed to one end of the quad-ridge wave guide tube part (21) and that has a patch conductor (332). Continuous bodies including the first protrusions (112a, 112b) and the second protrusions (212a, 212b) are provided with, at a boundary portion between the double-ridge wave guide tube part (11) and the quad-ridge wave guide tube part (21), notches (a11, b11, a12, b12) that cause intervals between end faces of opposing pairs of the continuous bodies.
Inventors:
NAKAMOTO NARIHIRO (JP)
TANIGUCHI MASAKAZU (JP)
TAKAHASHI TORU (JP)
TANIGUCHI MASAKAZU (JP)
TAKAHASHI TORU (JP)
Application Number:
PCT/JP2021/035736
Publication Date:
April 06, 2023
Filing Date:
September 29, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H01P5/103; H01P5/107; H01Q13/08; H01Q21/24
Foreign References:
| JP2015185893A | 2015-10-22 | |||
| JPH01501035A | 1989-04-06 |
Attorney, Agent or Firm:
SANNO PATENT ATTORNEYS OFFICE (JP)
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