# US 2017/0288299 A1 · Antenna device

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- Number: US 2017/0288299 A1
- Document ID: US20170288299A1
- Status: Published application
- Kind: A1
- Application number: 15/510,603
- Filed: 2015-09-23
- Published: 2017-10-05
- Earliest claimed: 2014-10-07
- Assignees: Denso Corporation
- Applicants: Denso Corporation
- Inventors: Masakazu IKEDA; Hiroaki KURAOKA
- Web page: https://patentgrep.com/patent/US20170288299A1

## CPC

- H01Q 1/243: {with built-in antennas}
- H01Q 1/52: Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure (absorbing means H01Q17/00)
- H01Q 9/0421: {with a shorting wall or a shorting pin at one end of the element (H01Q9/0414 takes precedence)}
- H01Q 9/0442: {with particular tuning means}
- H01Q 13/08: Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
- H01Q 23/00: Antennas with active circuits or circuit elements integrated within them or attached to them
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)

## Abstract

An antenna device includes a first conductive plate in a board shape, a second conductive plate in a board shape, a short-circuiting section, and a connecting section. The second conductive plate is disposed to face the first conductive plate with a space therebetween. The short-circuiting section is disposed between the first conductive plate and the second conductive plate, has a housing space housing an electronic component, and is connected to both the first conductive plate and the second conductive plate. The connecting section extends from the electronic component disposed inside the short-circuiting section toward the outside of the short-circuiting section without being electrically connected to the short-circuiting section and the first conductive plate, and extends between the first conductive plate and the second conductive plate from the outside of the short-circuiting section without being electrically connected to the first conductive plate, to be electrically connected to the second conductive plate.

## Claims

### Claim 1

An antenna device comprising:
a first conductive plate that is a conductor formed in a board shape;
a second conductive plate that is a conductor formed in a board shape and disposed to face the first conductive plate with a space therebetween;
a short-circuiting section that is a conductor disposed between the first conductive plate and the second conductive plate, has a housing space formed for housing an electronic component, and is connected to both the first conductive plate and the second conductive plate; and
a connecting section that is a conductor that extends from the electronic component disposed inside the short-circuiting section toward the outside of the short-circuiting section without being electrically connected to the short-circuiting section and the first conductive plate, and extends between the first conductive plate and the second conductive plate from the outside of the short-circuiting section without being electrically connected to the first conductive plate, to be electrically connected to the second conductive plate.

### Claim 2 (depends on 1)

The antenna device according to claim 1, further comprising:
a dielectric member that is disposed between the first conductive plate and the second conductive plate and has a through hole configuring the housing space, wherein
the short-circuiting section includes a plurality of through hole conductors that is disposed outside the through hole so as to surround the through hole, and that extends through the dielectric member.

### Claim 3

An antenna device comprising:
a first conductive plate that is a conductor formed in a board shape;
a second conductive plate that is a conductor formed in a board shape and disposed to face the first conductive plate with a space therebetween;
a short-circuiting section that is a conductor disposed between the first conductive plate and the second conductive plate, has a housing space formed for housing an antenna, and is connected to both the first conductive plate and the second conductive plate; and
a connecting section that is a conductor electrically connected to the first conductive plate.