Antenna Device With Divider For Bidirectional Radar Sensing
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Solution Overview
Problem
Current radar systems for autonomous vehicle rear lateral side warning systems face challenges in forming various sensing areas and increasing manufacturing costs due to the complexity of bidirectional radiation designs, which require additional output ports.
Innovation Solution
The implementation of an antenna device with multiple antennas arranged to radiate beams at different tilt angles, utilizing a divider to isolate signals and manage transmission and reception signals without adding additional ports, allowing for bidirectional radiation without increasing manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If bidirectional radiation design is implemented using conventional methods, then various rear lateral side sensing areas can be formed, but manufacturing cost increases due to requiring additional output ports
Solution Approach 1:
The patent applies multi-functionality by enabling a single output port to serve bidirectional radiation purposes through the use of a divider and switching controller. The antenna device can switch between transmitting and receiving modes, allowing one port to perform multiple functions that would traditionally require separate ports, thereby reducing manufacturing cost while maintaining versatile sensing area coverage
Solution Approach 2:
The patent implements dynamics through the switching controller that dynamically switches the antenna device between transmission and reception modes. This dynamic switching allows the system to adapt its function based on operational requirements, enabling bidirectional radiation capability without requiring additional static ports, thus reducing manufacturing complexity and cost
2Adaptability or versatility
If bidirectional radiation design is implemented using conventional methods, then various rear lateral side sensing areas can be formed, but device complexity increases due to additional ports
Solution Approach 1:
The patent applies multi-functionality by enabling a single output port to serve bidirectional radiation purposes through the use of a divider and switching controller. The antenna device can switch between transmitting and receiving modes, allowing one port to perform multiple functions that would traditionally require separate ports, thereby reducing manufacturing cost while maintaining versatile sensing area coverage
Solution Approach 2:
The patent merges the transmission and reception functions into a single output port configuration. By combining these functions through the divider and switching controller, the system reduces the number of separate ports needed, simplifying the overall device structure and reducing complexity while maintaining the capability to form various sensing areas
Data Source
AI summary
The present disclosure relates to an antenna device and a radar including the same. Specifically, the antenna device according to the present disclosure includes: at least one first antenna arranged in one direction and configured to radiate a beam tilted at a first tilt angle; at least one second antenna arranged to be spaced apart from the first antenna and configured to radiate a beam tilted at a second tilt angle; an input/output terminal disposed such that any one of a transmission signal and a reception signal moves therethrough; and a divider comprising a first port connected to the first antenna, a second port connected to the second antenna, and a third port connected to the input/output terminal, wherein the divider is disposed such that a signal transmitted to one of the first port and the second port is transmitted to a remaining one of the first and second port through a first path and a second path and the transmitted signal is isolated in the remaining port.