Tunable Antennas for Carrier Aggregation
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Solution Overview
Problem
Carrier aggregation in wireless devices with tunable antennas faces challenges due to the need for compromise between different RF bands, leading to suboptimal performance and increased antenna size, which conflicts with the demand for smaller devices.
Innovation Solution
The use of multiple tunable antennas, each optimized for a specific frequency band, allowing simultaneous transmission and reception across multiple frequency bands through carrier aggregation, optimizing data transmission and reception while maintaining a compact device form factor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If passive antennas covering required RF bands are used, then carrier aggregation performance is improved, but antenna size increases
Solution Approach 1:
The patent applies dynamic tuning capability to antennas, allowing them to adjust their resonant frequency based on the active RF band. This enables a single antenna to dynamically adapt its electrical length to match different frequency requirements, eliminating the need for multiple fixed-frequency passive antennas while maintaining carrier aggregation performance.
Solution Approach 2:
The invention changes the electrical parameters of the antenna by adjusting its resonant frequency through tuning mechanisms. By varying the antenna's electrical length or impedance characteristics, the same physical antenna structure can operate optimally across multiple RF bands, resolving the contradiction between performance and size.
2Reliability
If tunable antennas are tuned to a specific RF band, then antenna performance is optimized, but performance in other frequency bands deteriorates
Solution Approach 1:
The patent implements dynamic frequency tuning capability in the antenna system, allowing the antenna to be electronically reconfigured to resonate at different frequencies. This dynamic adaptation enables the antenna to maintain optimal performance across multiple frequency bands by adjusting its electrical characteristics in real-time based on the active carrier aggregation configuration.
Solution Approach 2:
The invention creates a universal antenna solution that can serve multiple frequency bands through tuning mechanisms. Rather than requiring separate dedicated antennas for each frequency band, a single multi-functional antenna with tuning capability can adapt to serve different RF bands, maintaining reliability across the full range of required frequencies.
3Productivity
If multiple passive antennas covering different RF bands are used, then simultaneous operation in multiple frequency bands is achieved, but device size increases
Solution Approach 1:
The patent segments the frequency coverage function across multiple tunable antennas, where each antenna is physically compact but can be tuned to different frequency bands. Through coordinated tuning and carrier aggregation, these segmented antenna elements collectively provide multi-band coverage without requiring each antenna to be physically large, thus reducing overall device size while maintaining high data transmission speeds.
Solution Approach 2:
By implementing dynamic tuning capability in each antenna element, the system can dynamically allocate different frequency bands to different antenna elements based on carrier aggregation requirements. This dynamic resource allocation enables simultaneous multi-band operation with compact antenna structures, resolving the contradiction between productivity and device size.
Data Source
AI summary
A wireless device having a first tunable antenna tuned to a first frequency band; and a second tunable antenna tuned to a second frequency band that is different than the first frequency band, wherein the first and second antennas are configured to transmit, receive, or a combination of transmit and receive transmission signals by carrier aggregation at the respective first and second frequency bands simultaneously.