US 2021/0242578 A1Published application

Antenna system for vehicle

AssigneesAGC Inc., Ntt Docomo, Inc.

InventorsMinoru INOMATA, Tetsuro IMAI, Hideaki SHOJI, Shoichi TAKEUCHI

Life of this patent

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Abstract

An antenna system for a vehicle includes a plurality of antenna sets provided on or in proximity to a dielectric arranged on front and rear sides or on right and left sides of the vehicle, or arranged on both thereof, wherein a first antenna set includes first and second antennas, a second antenna set includes third and fourth antennas, a third antenna set includes fifth and sixth antennas, a fourth antenna set includes seventh and eighth antennas, each of the first, third, fifth, and seventh antennas has a higher antenna gain for transmitting and receiving a horizontally polarized wave than transmitting and receiving a vertically polarized wave, and each of the second, fourth, sixth, and eighth antennas has a higher antenna gain for transmitting and receiving the vertically polarized wave than transmitting and receiving the horizontally polarized wave.

Claims20

Dependent claims

An antenna system for a vehicle, comprising:

a plurality of antenna sets provided on or in proximity to a dielectric arranged on a front side and a rear side of the vehicle, or arranged on a right side and a left side of the vehicle, or arranged on both of the front side and the rear side of vehicle and the right side and the left side of the vehicle,
wherein a first antenna set included in the plurality of antenna sets includes a first antenna and a second antenna,
a second antenna set included in the plurality of antenna sets includes a third antenna and a fourth antenna,
a third antenna set included in the plurality of antenna sets includes a fifth antenna and a sixth antenna,
a fourth antenna set included in the plurality of antenna sets includes a seventh antenna and an eighth antenna,
each of the first antenna, the third antenna, the fifth antenna, and the seventh antenna is a horizontal polarization antenna of which an antenna gain for transmitting and receiving a horizontally polarized wave is higher than an antenna gain for transmitting and receiving a vertically polarized wave, and
each of the second antenna, the fourth antenna, the sixth antenna, and the eighth antenna is a vertical polarization antenna of which an antenna gain for transmitting and receiving the vertically polarized wave is higher than an antenna gain for transmitting and receiving the horizontally polarized wave.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/239,229Filed 23 Apr 2021
Priority: JP 2018-20601331 Oct 2018
Published: 5 Aug 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H01Q 1/3233
Characterised by the application wherein the antenna is used: particular used as part of a sensor or in a security system, e.g. for automotive…
H01Q 1/3283
Characterised by the location of the antenna on the vehicle: side-mounted antennas, e.g. bumper-mounted, door-mounted
H01Q 13/206
Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave:…
H01Q 21/0037
Particular feeding systems: linear waveguide fed arrays

Family

Application17/239,229Continuation
US 11,804,649 B2Related patent
US 2021/0242578 A1This patent

From the US filing history. Foreign family members aren’t listed.

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