Reflector Antenna Feed With Coupling Units for Interference Suppression
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current microwave communication systems face challenges in achieving duplex transmission and receiving using reflector antennas due to interference between transmit and receive links, which requires large duplexers or separate antennas that increase cost and space requirements.
Innovation Solution
The implementation of a reflector antenna feed with a transmit antenna array and a receive antenna array, where the phase centers coincide, and a coupling unit is placed between adjacent transmit and receive antenna units to reduce interference by coupling signals to match amplitude and phase, thereby increasing isolation between the arrays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a duplexer is used to increase isolation between receive and transmit links, then interference suppression is improved, but device volume increases
Solution Approach 1:
The patent extracts and eliminates the duplexer component from the system by using separate receive and transmit antenna arrays. This removes the source of volume increase while maintaining interference suppression through spatial separation of the antenna arrays, allowing independent operation without mutual interference.
Solution Approach 2:
The patent segments the single antenna system into separate receive antenna array and transmit antenna array. This segmentation allows the receive and transmit functions to operate independently in space, achieving interference suppression without requiring a duplexer, thereby reducing overall device volume.
2Object-affected harmful factors
If independent receive and transmit antennas are used to avoid duplexer, then interference suppression is improved, but deployment space increases
Solution Approach 1:
The patent merges the receive and transmit antenna arrays into a single integrated feed structure for the reflector antenna. Although the arrays are separate for interference suppression, they share the same physical platform and reflector, reducing deployment space compared to completely independent antenna systems.
Solution Approach 2:
The reflector and feed structure serve multiple functions: supporting both receive and transmit antenna arrays, providing structural platform, and enabling both reception and transmission operations. This multi-functionality reduces the overall deployment space required compared to separate dedicated antenna systems.
3Object-affected harmful factors
If independent receive and transmit antennas are used to avoid duplexer, then interference suppression is improved, but system cost increases
Solution Approach 1:
The patent combines multiple functions into integrated components: the feed structure houses both receive and transmit antenna arrays, the reflector serves both transmission and reception, and the control unit manages both operations. This integration reduces component count and system complexity, lowering overall cost despite using separate antenna arrays.
Solution Approach 2:
The system uses universal components that perform multiple functions: the reflector for both transmit and receive, the feed structure housing both antenna arrays, and the control unit managing dual operations. This multi-functionality reduces the number of separate components needed, thereby reducing system cost.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration allows for duplex communication without the need for a duplexer, reducing the volume of the reflector antenna and minimizing interference, enabling point-to-point microwave communication while maintaining efficient signal transmission and reception.
Implementation Method 1
at least one coupling unit is disposed between at least one group of a transmit antenna unit and a receive antenna unit that are adjacent to each other, where the at least one coupling unit is configured to reduce interference caused by the transmit antenna array to the receive antenna array
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
Embodiments of the present invention provide a reflector antenna and a reflector antenna feed. The reflector antenna feed includes: a transmit antenna array and a receive antenna array, where the transmit antenna array includes at least two transmit antenna units, the receive antenna array includes at least two receive antenna units, and a phase center of the transmit antenna array coincides with that of the receive antenna array, where at least one coupling unit is disposed between at least one group of a transmit antenna unit and a receive antenna unit that are adjacent to each other.