Multi-Frequency Antenna Sharing via Tunable Coupling Elements
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Solution Overview
Problem
Conventional communication systems face challenges in efficiently processing signals for multiple communication standards and data formats across various transmission and reception bands, particularly in supporting high and low frequency applications concurrently.
Innovation Solution
A method and system for sharing antennas by configuring a multi-frequency antenna system using frequency-dependent coupling elements such as microstrips, transmission lines, and RLC circuits, enabling concurrent operation or time-division duplex mode for transmitting and receiving radio signals across multiple frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate antennas are used for different frequency bands, then signal processing quality is improved, but device complexity and space occupation increase
Solution Approach 1:
The patent combines multiple antennas into a single integrated antenna structure that can operate across multiple frequency bands. The integrated antenna uses frequency-selective surfaces and resonant cavities to achieve multi-band operation, merging the functions of what would traditionally require separate antennas for different bands (e.g., GPS, L-band, S-band, C-band, X-band, Ka-band).
Solution Approach 2:
The patent designs a universal antenna structure that performs multiple functions across different frequency ranges. The single antenna system can simultaneously or sequentially support various communication standards and satellite navigation systems by adjusting its resonant frequencies through variable capacitors and inductors, making it adaptable to multiple applications without requiring separate dedicated antennas.
2Adaptability or versatility
If frequency-selective surfaces are added to achieve multi-band operation, then adaptability is improved, but manufacturing complexity increases
Solution Approach 1:
The patent employs a nested structure where frequency-selective surfaces are integrated within the antenna body, and resonant cavities are positioned inside the antenna housing. This nesting approach allows multiple functional elements to be compactly arranged without requiring separate assembly steps for each component, simplifying the manufacturing process while maintaining multi-band capability.
Solution Approach 2:
The patent uses composite structures combining conductive materials for radiating elements, dielectric materials for insulation and resonance control, and frequency-selective surface patterns. These composite materials are fabricated as integrated layers or components that can be manufactured using standard PCB and antenna fabrication techniques, reducing overall manufacturing complexity despite the advanced functionality.
3Adaptability or versatility
If variable frequency elements are implemented, then adaptability across frequency bands is improved, but device complexity increases
Solution Approach 1:
The patent incorporates variable frequency elements such as adjustable capacitors and inductors that allow the antenna's resonant frequency to be dynamically changed. These elements enable the antenna to adapt its operating frequency based on the required communication band, providing flexibility for different applications while using relatively simple mechanical or electrical adjustment mechanisms rather than complex electronic control systems.
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 allows for efficient signal processing and transmission/reception across multiple frequencies, supporting advanced communication standards like Ultrawideband (UWB) and enabling fast-switching between different RF circuitries for improved performance.
Implementation Method 1
configuring a multi-frequency antenna system by coupling a plurality of antennas together communicatively via one or more frequency-dependent coupling elements
Implementation Method 2
receiving and/or transmitting radio signals on one or more radio frequencies via said configured multi-frequency antenna system
Data Source
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AI summary
Aspects of a method and system for sharing antennas for high frequency and low frequency applications may include configuring a multi-frequency antenna system by coupling a plurality of antennas together communicatively via one or more frequency-dependent coupling elements. Radio signals may be received and/or transmitted on one or more radio frequencies via said configured multi-frequency antenna system. The one or more frequency-dependent coupling elements may be frequency-tunable, and may comprise microstrips, transmission lines, and/or RLC circuits. The multi-frequency antenna system may be configured for concurrent operation or time-division duplex operation during the transmitting and/or the receiving. The one or more radio frequencies may operate concurrently or in time-division duplex. The radio signals for transmission may be generated in one or more radio frequency front-ends, and the received radio signals may be demodulated in one or more radio frequency front-ends.