Triple Antenna Front End Circuitry for Carrier Aggregation
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Solution Overview
Problem
Conventional front end circuitry for wireless communication systems operating in carrier aggregation configurations suffers from poor efficiency due to excessive insertion loss, limiting the performance and data rate of mobile devices.
Innovation Solution
The implementation of front end circuitry with at least three antenna nodes, a first duplexer, a second duplexer, a first diplexer, and transceiver circuitry, where the duplexers and diplexers are selectively coupled to different antenna nodes to reduce insertion loss and support various carrier aggregation configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional front end circuitry with two antennas is used for carrier aggregation, then the device can aggregate bandwidth across multiple bands, but the insertion loss becomes excessive and efficiency deteriorates
Solution Approach 1:
The patent segments the antenna system into three separate antenna nodes (first antenna node, second antenna node, third antenna node) with dedicated duplexers and diplexers for each. This segmentation allows each component to be optimized for specific band combinations, reducing overall insertion loss while maintaining carrier aggregation versatility across multiple bands.
Solution Approach 2:
The patent transitions from a conventional two-antenna configuration to a three-antenna node architecture, adding a dimensional expansion to the system. This additional antenna node enables more flexible signal routing and isolation, reducing interference and insertion loss while supporting multiple carrier aggregation configurations.
2Loss of energy
If multiple duplexers and diplexers are selectively coupled to different antenna nodes, then insertion loss is reduced and efficiency is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic switching between different antenna nodes and filter combinations using controllable switches. The front end switching circuitry selectively couples different duplexers and diplexers to antenna nodes based on the required carrier aggregation configuration, allowing the system to adapt to different operational requirements while managing complexity through software-controlled switching.
Solution Approach 2:
The patent designs a universal front end circuitry architecture where three antenna nodes can be configured to support multiple carrier aggregation scenarios (intra-band, inter-band, contiguous, non-contiguous). The same basic circuitry structure with selective switching handles all these different operational modes, reducing overall device complexity compared to having separate dedicated paths for each configuration.
Data Source
AI summary
Front end circuitry includes at least three antenna nodes, a first duplexer, a second duplexer, a first diplexer, transceiver circuitry, and front end switching circuitry. The transceiver circuitry is coupled to the first duplexer, the second duplexer, and the first diplexer. The front end switching circuitry is coupled between the antenna nodes, the first duplexer, the second duplexer, and the first diplexer and configured to selectively couple the first duplexer to a first one of the antenna nodes, selectively couple the second duplexer to a second one of the antenna nodes, and selectively couple the first diplexer to a third one of the antenna nodes.