Frequency-Selective Antenna Aperture for Low-Cost Multi-Band Coexistence
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Solution Overview
Problem
Existing multi-band antennas with frequency selective surfaces (FSS) are costly due to separate island structural units and limited to single usage scenarios, integrating high-low-frequency coexistence antennas.
Innovation Solution
An antenna system with a signal control part comprising metal plates and a feeder network that allows different frequency signals to be controlled, reducing costs and enabling flexible usage scenarios by reflecting or transmitting signals based on frequency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a frequency selective surface (FSS) structure is used on a radome to achieve multi-band signal reflection and transmission, then the antenna system can meet multi-band working requirements, but the processing costs are high due to separate island structural units and PCB processing technology
Solution Approach 1:
The patent merges multiple separate FSS island structural units into a unified integrated structure. The radome is designed as a single continuous component with embedded signal control parts, eliminating the need for separate PCB processing and assembly of multiple islands. This integration maintains multi-band frequency selectivity while significantly reducing manufacturing complexity and cost.
2Adaptability or versatility
If a signal control part with metal plates is used to reflect and transmit signals based on frequency, then multi-band antenna requirements are met, but the structure becomes more complex
Solution Approach 1:
The radome is designed to serve multiple functions simultaneously: it acts as both the protective radome structure and the signal control surface with embedded metal plates. This multi-functionality eliminates the need for separate FSS layers or additional signal control components, reducing overall structural complexity while maintaining frequency selective control capabilities.
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
The system meets multi-band antenna requirements while reducing costs and allowing flexible usage scenarios, improving capacity and frequency bands without significantly impacting the original system.
Implementation Method 1
the signals generate resonance on the signal control part, so that the first signal is reflected and the second signal is transmitted
Implementation Method 2
the signals generate resonance on different metal plates, so that the different metal plates and spaces between the metal plates may form cascades, thereby generating multiple resonance points
Data Source
AI summary
An antenna and an antenna system that has the antenna, and relates to the field of wireless communication technologies. The antenna can allow a high frequency to pass through and block a low frequency or allow the low frequency to pass through and block the high frequency, and can be used in combination with other antennas to form an antenna system. In addition, in the antenna system, the antenna can also share a same antenna aperture surface with other antennas. The antenna can reduce costs while meeting a working requirement of a multi-band antenna, and can be used for flexible and changeable usage scenarios.