Integrated antenna module and in-vehicle system
An integrated antenna module to be applied to an in-vehicle system includes an antenna element group that is mounted on a vehicle and is formed of a plurality of antenna elements, and the antenna element group constitutes a plurality of antennas capable of transmitting or receiving a plurality of electromagnetic waves by combining the plurality of antenna elements.
1. An integrated antenna module comprising:
an antenna element group that is mounted on a vehicle and is formed of a plurality of antenna elements, wherein
the antenna element group constitutes a plurality of antennas capable of transmitting or receiving a plurality of electromagnetic waves by combining the plurality of antenna elements,
the antenna element group is configured to include a switching unit,
the switching unit is configured to operate the antenna element group in a plurality of different transmission/reception modes by switching a mutual connection state of the plurality of antenna elements,
the antenna element group is configured to operate in an omnidirectional antenna mode in which the plurality of antenna elements are set to an aggregated state and aggregates electromagnetic waves received by each antenna constituted by each antenna element in to one signal and a directional antenna mode in which the plurality of antenna elements are set to an independent state and independent electromagnetic waves received by each antenna constituted by each antenna element to one signal by one signal, as the plurality of different transmission/reception modes, and
in the omnidirectional antenna mode, a signal of the antenna having an excellent reception condition is preferentially used or signals are synthesized to remove noise for signals based on same electromagnetic waves from a same transmission/reception target received by the plurality of antennas.
2. The integrated antenna module according to claim 1 , wherein
the antenna element group constitutes the plurality of antennas capable of transmitting or receiving a plurality of electromagnetic waves of different frequencies by combining the plurality of antenna elements.
3. The integrated antenna module according to claim 1 , wherein
at least some of the plurality of antenna elements are provided in a planar shape on a plate-like member formed in a plate shape.
4. The integrated antenna module according to claim 2 , wherein
at least some of the plurality of antenna elements are provided in a planar shape on a plate-like member formed in a plate shape.
5. The integrated antenna module according to claim 1 , wherein
at least some of the plurality of antenna elements are configured in a thin structure that is able to be incorporated inside the vehicle or in a resin member provided to be exposed to an outside of the vehicle.
6. The integrated antenna module according to claim 2 , wherein
at least some of the plurality of antenna elements are configured in a thin structure that is able to be incorporated inside the vehicle or in a resin member provided to be exposed to an outside of the vehicle.
7. The integrated antenna module according to claim 3 , wherein
at least some of the plurality of antenna elements are configured in a thin structure that is able to be incorporated inside the vehicle or in a resin member provided to be exposed to an outside of the vehicle.
8. The integrated antenna module according to claim 1 , further comprising:
a communication control module that controls an operation of the antenna element group; and
a housing to which at least some of the plurality of antenna elements and at least a part of the communication control module are assembled.
9. The integrated antenna module according to claim 2 , further comprising:
a communication control module that controls an operation of the antenna element group; and
a housing to which at least some of the plurality of antenna elements and at least a part of the communication control module are assembled.
10. The integrated antenna module according to claim 3 , further comprising:
a communication control module that controls an operation of the antenna element group; and
a housing to which at least some of the plurality of antenna elements and at least a part of the communication control module are assembled.
11. The integrated antenna module according to claim 5 , further comprising:
a communication control module that controls an operation of the antenna element group; and
a housing to which at least some of the plurality of antenna elements and at least a part of the communication control module are assembled.
12. The integrated antenna module according claim 1 , wherein
the antenna element group includes, as the plurality of antenna elements, a plurality of main antenna elements and an auxiliary antenna element provided at a different position from the plurality of main antenna elements.
13. The integrated antenna module according claim 2 , wherein the antenna element group includes, as the plurality of antenna elements, a plurality of main antenna elements and an auxiliary antenna element provided at a different position from the plurality of main antenna elements.
14. The integrated antenna module according claim 3 , wherein
the antenna element group includes, as the plurality of antenna elements, a plurality of main antenna elements and an auxiliary antenna element provided at a different position from the plurality of main antenna elements.
15. The integrated antenna module according claim 5 , wherein
the antenna element group includes, as the plurality of antenna elements, a plurality of main antenna elements and an auxiliary antenna element provided at a different position from the plurality of main antenna elements.
16. The integrated antenna module according claim 8 , wherein
the antenna element group includes, as the plurality of antenna elements, a plurality of main antenna elements and an auxiliary antenna element provided at a different position from the plurality of main antenna elements.
17. The integrated antenna module according to claim 1 , wherein
the antenna element group operates in a plurality of different transmission/reception modes as the plurality of antenna elements is selectively used according to a situation.
18. An in-vehicle system comprising:
an integrated antenna module as claimed in claim 1 , that is mounted on a vehicle and capable of transmitting or receiving electromagnetic waves; and
a router that is electrically connected to the integrated antenna module and relays communication between the integrated antenna module and an in-vehicle device mounted on the vehicle.
19. An integrated antenna module comprising:
an antenna element group that is mounted on a vehicle and is formed of a plurality of antenna elements;
a communication control module that controls an operation of the antenna element group;
a housing to which at least some of the plurality of antenna elements and at least a part of the communication control module are assembled; and
an optical signal transmission unit that is interposed between the plurality of antenna elements and the communication control module, converts an electric signal into an optical signal and transmits the converted optical signal, and converts the transmitted optical signal into an electric signal, wherein
the antenna element group constitutes a plurality of antennas capable of transmitting or receiving a plurality of electromagnetic waves by combining the plurality of antenna elements.
20. The integrated antenna module according claim 19 , wherein
the antenna element group includes, as the plurality of antenna elements, a plurality of main antenna elements and an auxiliary antenna element provided at a different position from the plurality of main antenna elements.