Antenna Cluster Grouping for Microwave Signal Measurement
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Solution Overview
Problem
Existing multi-static microwave signal measurement devices require high computational capacity and are costly due to the large number of measured values from transmitter-receiver combinations, leading to long evaluation times.
Innovation Solution
The configuration of antenna clusters into groups, where subsets are designated as either transmitting or receiving clusters, reduces the number of signal evaluations by forming smaller, manageable apertures that can be matched to the object's size and position, allowing for efficient image reconstruction with lower computational costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If all transmitting antennas are combined with all receiving antennas to form a complete aperture, then measurement precision is improved, but device complexity and computational requirements increase immensely
Solution Approach 1:
The antenna arrangement is divided into multiple antenna clusters, where each cluster contains a subset of transmitting and receiving antennas. Instead of using all antennas simultaneously, the system segments them into manageable groups that can be configured independently, reducing the number of active transmitter-receiver combinations while maintaining measurement precision through multiple measurements.
Solution Approach 2:
The system dynamically configures antenna clusters between transmitting and receiving modes through control unit. The configuration groups allow the antenna arrangement to adapt its structure based on measurement requirements, switching roles of antenna clusters to reduce computational complexity while preserving imaging capability.
2Productivity
If all antenna clusters are activated simultaneously, then productivity is improved, but loss of energy increases due to the large number of signal evaluations required
Solution Approach 1:
The system performs measurements in periodic cycles, where different configuration groups are activated sequentially rather than simultaneously. Each cycle uses a specific subset of antenna clusters configured as transmitters and receivers, allowing the system to complete multiple measurements over time while reducing energy consumption in each individual measurement cycle.
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 approach significantly reduces measurement and evaluation costs, optimizes evaluation duration, and maintains imaging quality by forming effective apertures with identical spacing distances, enabling efficient and cost-effective imaging of objects.
Implementation Method 1
an antenna element transmits microwave signals, which, after reflection on an object under investigation, are received in all receiving antennas
Data Source
AI summary
A method for the configuration of a multi-static measuring device with an antenna arrangement, which is formed from several antenna clusters, each of which comprises several transmitting antennas and several receiving antennas, is characterized by the formation of configuration groups and associated group apertures. A configuration group is configured through the allocation of a subset of the antenna clusters of the antenna arrangement to a configuration group. At least one subset of the antenna clusters of this configuration group is configured as a receiving cluster in which exclusively the receiving antennas are activated. At least one subset of the antenna clusters of the configuration group are configured as transmitting clusters by activating the transmitting antennas. Microwave signals radiated from all transmitting antennas of all transmitting clusters of the configuration group and reflected on an object are measured in every receiving antenna of the receiving clusters of the configuration group.