Circular Complex Antenna for MIMO Spatial Efficiency
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Solution Overview
Problem
Current antenna designs fail to effectively increase spatial efficiency, resonance bandwidth, and design variety for multi-band or broadband operations, particularly in MIMO communication systems, where multiple antennas are required to enhance spectral efficiency and transmission rate while maintaining limited volume and cost.
Innovation Solution
A complex antenna system comprising four unit antennas circularly arranged with side-wall antennas, featuring multi-layered patch plates and a switching circuit for polarization control, and side-wall antennas that increase operating frequency bands and bandwidth, allowing for 16-way wave beam synthesis and improved spatial efficiency and resonance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple unit antennas are circularly arranged to increase spatial efficiency, then the antenna system can support MIMO communication and improve spectral efficiency, but the device complexity and volume increase
Solution Approach 1:
The antenna system is segmented into four independent unit antennas circularly arranged around a common axis. Each unit antenna consists of separate patch plates for different frequency bands, allowing independent optimization and simplifying the overall design complexity while maintaining MIMO capability
Solution Approach 2:
The patent transitions from planar antenna arrangements to a three-dimensional circular arrangement around a common axis. This spatial dimensionality change enables four unit antennas to be packed in a compact volume while maintaining adequate separation for MIMO operation, thus improving spectral efficiency without excessive volume increase
2Adaptability or versatility
If multiple frequency bands are supported by adding more antennas, then the resonance bandwidth and design variety increase, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges multiple frequency band support into a single integrated unit antenna structure. Each unit antenna contains patch plates for different frequency bands (e.g., first patch plate for first frequency band, second patch plate for second frequency band), combining multi-band functionality into one antenna element rather than requiring separate antennas for each band
Solution Approach 2:
Each unit antenna is designed with universal multi-functionality to support multiple frequency bands through its patch plate structure. The same unit antenna can operate across different frequency bands by adjusting which patch plate is activated, reducing the need for multiple specialized antennas and simplifying the overall system
Data Source
AI summary
A complex antenna for receiving and transmitting radio signals, includes four unit antennas, circularly arranged along a circle, for receiving and transmitting radio signals of a first frequency band; four side walls, respectively disposed between two adjacent unit antennas of the four unit antennas; and a plurality of side-wall antennas, disposed on the four side walls, for receiving and transmitting radio signals of a second frequency band.