Radiation pattern reconfigurable antenna
AssigneeAptiv Technologies AG
InventorsMingjian Li, Zhengzheng Li
Life of this patent
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Abstract
A radiation pattern reconfigurable antenna includes an input port, a signal divider, a filter, and first and second radiators. The signal divider is connected to the input port and configured to divide a signal at the input port into a first output and a second output. The filter is connected to the second output, wherein the filter is configured to filter signal within a first frequency band and to pass signals within a second frequency band. The first radiator is configured to receive the signal from the first output of the signal divider, wherein the first radiator receives signals within the first frequency band and the second frequency band. The second radiator is connected to the filter to receive signals provided within the second frequency band.
Claims20
An antenna comprising:
- an input port, configured to communicatively connect to a signal processing unit and to transmit or receive a signal that causes the antenna to provide a radiation pattern for one of a plurality of fields of view;
- a signal divider configured to communicate the signal from the input port and to a plurality of radiator ports;
- and
- at least one filter configured to filter signals within at least a first frequency band and pass signals within at least a second frequency band;
- and
- a plurality of radiators connected to the plurality of radiator ports, each of the radiators comprising a respective delay line configured to generate, based on frequency band, a shape of the radiation pattern, a respective delay line of at least a first radiator being connected to a first radiator port, and a respective delay line of at least a second radiator being connected to a second radiator port via the at least one filter.
A radar system comprising:
- a transmission antenna configured to transmit radio frequency (RF) signals;
- a receiver antenna configured to receive RF signals;
- a radar transceiver configured to provide an RF output to the transmission antenna for transmission and to receive an RF input from the receiver antenna;
- and
- a control and signal processing circuit connected to the radar transceiver to process the RF input to detect objects;
- and
- at least one of the transmission antenna or the receiver antenna comprises:
- an input port, configured to communicatively connect to a signal processing unit and to transmit or receive a signal that causes the antenna to provide a radiation pattern for one of a plurality of fields of view;
- a signal divider configured to communicate the signal from the input port and to a plurality of radiator ports;
- and
- at least one filter configured to filter signals within at least a first frequency band and to pass signals within at least a second frequency band;
- a plurality of radiators connected to the plurality of radiator ports, each of the radiators comprising a respective delay line configured to generate, based on frequency band, a shape of the radiation pattern, a respective delay line of at least a first radiator being connected to a first radiator port, and a respective delay line of at least a second radiator being connected to a second radiator port via the at least one filter.
Dependencies are inferred from the claim text.