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EP0526643A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Antenna device

Assignee: Mitsubishi Electric Corp
•
Filing: 1992-01-28
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Granted: —
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Expires: 2012-01-28
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Abstract

Abstract A strip conductor plate connected to a feeder line is provided on a ground conductor via a dielectric substrate in order to feed electricity to an inverted-F antenna which has a nearly rectangular plate-like conductor forming a radiation conductor and the ground conductor arranged in parallel with the plate conductor. Therefore, the electricity is fed from the feeder line to the inverted-F antenna (37) through the electric field coupling between the plate-like conductor and the strip conductor plate. The inverted-F antenna and a resonator are coupled together via a coupling means for impedance matching, and a band-pass filter is constituted of the inverted-F antenna and the resonator (62).

Inventors

  • 👤 Kenichi Kagoshima
  • 👤 Koichi Tsunekawa
  • 👤 Moriyasu Mitsubishi Denki K.K. Denshi Miyazaki
  • 👤 Hideki Mitsubishi Denki K.K. Denshi System Asao
  • 👤 Osami Mitsubishi Denki K.K. Denshi System Ishida
  • 👤 Makoto Mitsubishi Denki K.K. Denshi Matsunaga
  • 👤 Takashi Mitsubishi Denki K.K. Denshi Katagi

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 11:50
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/30; H01Q9/40; H01P; H01P1/00; H01P1/20; H01P1/201; H01P1/205; H01P1/2056; H01Q9/0407; H01Q9/0421; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/18; H04B1/38; H04B1/3827; H04B1/3833

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 108 words
An antenna device, comprising: a first conductor plate for forming a radiation conductor of an antenna; a second conductor plate arranged approximately in parallel with the first conductor plate for forming a ground conductor of the antenna; a conductor for connecting the first conductor plate with the second conductor plate at one end of the first conductor plate; a feeder line; and a third conductor plate for feeding, which is arranged between the first conductor plate and the second conductor plate and is connected to the feeder line to cause either an electric field or magnetic field coupling between the first conductor plate and the third conductor plate.
Claim 2
Dependent Claim 108 words
An antenna device, comprising: a first conductor plate for forming a radiation conductor of an antenna; a second conductor plate arranged approximately in parallel with the first conductor plate for forming a ground conductor of the antenna; a conductor for connecting the first conductor plate with the second conductor plate at one end of the first conductor plate; a feeder line; and a third conductor plate for feeding, which is arranged between the first conductor plate and the second conductor plate and is connected to the feeder line to cause either an electric field or magnetic field coupling between the first conductor plate and the third conductor plate.
Claim 3
Dependent Claim 50 words
A filter" antenna device, comprising: an antenna constituted by a resonant element; a resonator; and a coupling means for coupling the antenna with the resonator, the coupling means integrating the antenna and the resonator to perform an impedance matching, the resonant element and the resonator constituting a band pass filter.
Claim 4
Dependent Claim 50 words
A filter" antenna device, comprising: an antenna constituted by a resonant element; a resonator; and a coupling means for coupling the antenna with the resonator, the coupling means integrating the antenna and the resonator to perform an impedance matching, the resonant element and the resonator constituting a band pass filter.
Claim 5
Dependent Claim 139 words
An antenna device of a plate structure for use mainly in a VHF band, a UHF band, a microwave band and a millimeter-wave band, comprising: (a) a first conductor plate for forming a radiation conductor of an antenna; (b) a second conductor plate arranged approximately in parallel with the first conductor plate for forming a ground conductor of the antenna; (c) a conductor provided at one end of the first conductor plate for connecting the first conductor plate with the second conductor plate; and (d) a third conductor plate for feeding, which is arranged between the first conductor plate and the second conductor plate and is connected to a feeder line for performing a feeding to the antenna device to cause either an electric field or magnetic field coupling between the first conductor plate and the third conductor plate.
Claim 6
Dependent Claim 139 words
An antenna device of a plate structure for use mainly in a VHF band, a UHF band, a microwave band and a millimeter-wave band, comprising: (a) a first conductor plate for forming a radiation conductor of an antenna; (b) a second conductor plate arranged approximately in parallel with the first conductor plate for forming a ground conductor of the antenna; (c) a conductor provided at one end of the first conductor plate for connecting the first conductor plate with the second conductor plate; and (d) a third conductor plate for feeding, which is arranged between the first conductor plate and the second conductor plate and is connected to a feeder line for performing a feeding to the antenna device to cause either an electric field or magnetic field coupling between the first conductor plate and the third conductor plate.
Claim 7
Dependent Claim 39 words
An antenna device, wherein an antenna including a resonant element and a resonator are integrated by a coupling means to perform an impedance matching, and the resonator and the resonant element of the antenna constitute a band pass filter.
Claim 8
Dependent Claim 39 words
An antenna device, wherein an antenna including a resonant element and a resonator are integrated by a coupling means to perform an impedance matching, and the resonator and the resonant element of the antenna constitute a band pass filter.
Claim 9
Dependent Claim 148 words
An antenna device of a plate structure for use mainly in a VHF band, a UHF band, a microwave band, and millimeter-wave band comprising: (a) a first conductor plate for forming a radiation conductor of an antenna; (b) a second conductor plate arranged approximately in parallel with the first conductor plate for forming a ground conductor of the antenna; (c) a conductor provided at one end of the first conductor plate for connecting the first conductor plate with the second conductor plate; (d) a third conductor plate for feeding, which is arranged between the first conductor plate and the second conductor plate and is connected to a feeder line for performing feeding to the antenna device to cause either an electric field or magnetic field coupling between the first conductor plate and the third conductor plate; and (e) a resonator to be integrated with the first conductor plate.
Claim 10
Dependent Claim 148 words
An antenna device of a plate structure for use mainly in a VHF band, a UHF band, a microwave band, and millimeter-wave band comprising: (a) a first conductor plate for forming a radiation conductor of an antenna; (b) a second conductor plate arranged approximately in parallel with the first conductor plate for forming a ground conductor of the antenna; (c) a conductor provided at one end of the first conductor plate for connecting the first conductor plate with the second conductor plate; (d) a third conductor plate for feeding, which is arranged between the first conductor plate and the second conductor plate and is connected to a feeder line for performing feeding to the antenna device to cause either an electric field or magnetic field coupling between the first conductor plate and the third conductor plate; and (e) a resonator to be integrated with the first conductor plate.

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