Antenna arrangement, transceiver arrangement, communication system, actuator device, and method for operating an antenna arrangement
View Patent ↗An antenna arrangement ( 1 ), for use within a full-duplex communication channel. The antenna arrangement ( 1 ) having at least a first planar receiving antenna ( 4 ) and a transmitting antenna group with a first planar transmitting antenna ( 2 ) and a second planar transmitting antenna ( 3 ). The transmitting antennas ( 2, 3 ) and the first receiving antenna ( 4 ) are arranged with their respective main surfaces ( 6 ) parallel to a common base surface ( 7 ) around a common center of rotation (Z), wherein the planar transmitting antennas ( 2, 3 ) are arranged rotated 180° to one another around the center of rotation (Z). The first receiving antenna ( 4 ) has the same center-to-center distance (D) to both transmitting antennas ( 2, 3 ).
1 . An antenna arrangement that defines a main radiation direction, the antenna arrangement comprising:
two more antennas each having a respective feed-in point;
a printed circuit board that has a side area, wherein the two or more antennas are connected to the printed circuit board at the side area thereof; and
an attenuation arrangement on the side area of the printed circuit board, wherein
the attenuation arrangement has a first attenuation unit that defines an access opening within which the two or more antennas are jointly arranged; and
a central axis of the defined access opening runs along the main radiation direction of the antenna arrangement.
2 . The antenna arrangement as claimed in claim 1 , and wherein the central axis of the defined access opening runs through a common central point of the two or more antennas.
3 . The antenna arrangement as claimed in claim 1 , and further comprising:
a second attenuation unit in the attenuation arrangement, the second attenuation unit defining an access opening within which the two or more antennas are jointly arranged; and wherein
the first attenuation unit and the second attenuation unit differ from one another geometrically.
4 . The antenna arrangement as claimed in claim 3 , and wherein the first attenuation unit and the second attenuation unit are arranged concentrically; and wherein
the first attenuation unit is arranged inside the access opening defined in the second attenuation unit.
5 . The antenna arrangement as claimed in claim 1 , and wherein the access opening defined in the first attenuation unit has a circular design.
6 . The antenna arrangement as claimed in claim 3 , and further comprising:
a loss-based absorber in the second attenuation unit; and
the loss-based absorber forms an impedance gradient running in an axial direction along the central axis.
7 . The antenna arrangement as claimed in claim 3 , and further comprising:
a resonance-based absorber in the first attenuation unit.
8 . The antenna arrangement as claimed in claim 1 , and wherein a transverse extension of the access opening defined in the first attenuation unit is not greater than 2.0 free-space wavelengths (I) of an electromagnetic wave to be transmitted with the antenna arrangement.
9 . The antenna arrangement as claimed in claim 1 , and further comprising:
a common transmit antenna group comprised of a first transmit antenna and a second transmit antenna; and
a common receive antenna group comprised of a first receive antenna and a second receive antenna; and wherein
the first transmit antenna and the second transmit antenna and the first receive antenna and the second receive antenna are jointly arranged inside the attenuation arrangement.
10 . The antenna arrangement as claimed in claim 1 , and further comprising:
a second attenuation unit in the attenuation arrangement, the second attenuation unit defining an access opening within which the two or more antennas are jointly arranged; and wherein
the first attenuation unit and the second attenuation unit differ from one another in terms of their respective material composition.
11 . The antenna arrangement as claimed in claim 6 , and wherein the Impedance gradient is layered.
12 . The antenna arrangement as claimed in claim 6 , and wherein the Impedance gradient is continuous.
13 . The antenna arrangement as claimed in claim 4 , and wherein
the second attenuation unit has a greater extension along the central axis than the first attenuation unit.
14 . An antenna arrangement that defines a main radiation direction, the antenna arrangement comprising:
two more antennas each having a respective feed-in point;
a printed circuit board that has a side area, wherein the two or more antennas are connected to the printed circuit board at the side area thereof; and
an attenuation arrangement on the side area of the printed circuit board, wherein
the attenuation arrangement has a first attenuation unit that defines an access opening within which the two or more antennas are jointly arranged;
a central axis of the defined access opening runs along the main radiation direction of the antenna arrangement;
a common transmit antenna group among the two or more antennas comprised of a first transmit antenna and a second transmit antenna;
a common receive antenna group among the two or more antennas comprised of a first receive antenna and a second receive antenna;
the first transmit antenna, the second transmit antenna, the first receive antenna and the second receive antenna are jointly arranged inside the attenuation arrangement;
a first balun in the common transmit antenna group, the first balun having a symmetric connection and having an asymmetric connection; and
a second balun in the common receive antenna group, the second balun having a symmetric connection and having an asymmetric connection; wherein
the first transmit antenna is connected to a first symmetric connection of the first balun and the second transmit antenna is connected to a second symmetric connection of the first balun;
the first receive antenna is connected to a first symmetric connection of the second balun and the second receive antenna is connected to a second symmetric connection of the second balun;
the asymmetric connection of the first balun is connectable to a transmit signal path of a transceiver arrangement; and
the asymmetric connection of the second balun is connectable to a receive signal path of the transceiver arrangement independent from the transmit signal path.
15 . A communication system comprising:
a first transceiver arrangement; and
a second transceiver arrangement; wherein
each of the first and the second transceiver arrangements has an antenna arrangement for providing wireless signal transmission between the first and the second transceiver arrangements, each antenna arrangement defining a main radiation direction, and each antenna arrangement having,
two or more antennas each having a respective feed-in point;
a printed circuit board that has a side area, wherein the two or more antennas are connected to the printed circuit board at the side area thereof; and
an attenuation arrangement on the side area of the printed circuit board,
wherein
the attenuation arrangement has a first attenuation unit that defines an access opening within which the two or more antennas are jointly arranged; and
a central axis of the defined access opening runs along the main radiation direction of the antenna arrangement.
16 . The communication system as claimed in claim 15 , and further comprising:
a transmit unit in each of the first and second transceiver arrangements; and
a receive unit in each of the first and second transceiver arrangements; and
the transmit unit and the receive unit enable in-band full-duplex communication.
17 . The communication system as claimed in claim 15 , and wherein the first and the second transceiver arrangements are a maximum of 10 centimeters apart from one another for the wireless signal transmission.
18 . The communication system as claimed in claim 15 , and wherein the first and the second transceiver arrangements are rotatable relative to one another around a common axis of rotation; and wherein
central points of the respective antenna arrangements are arranged coaxially to one another and coincide with the common axis of rotation.
19 . The communication system as claimed in claim 15 , and further comprising:
a contactless electrical connector in which the first transceiver arrangement is arranged in a hermetically sealed manner; and
a contactless electrical mating connector in which the second transceiver arrangement is arranged in a hermetically sealed manner; and
the contactless electrical mating connector is mechanically connectable to the contactless electrical connector.