Multi-band RF Circuit Design for Cost Reduction
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Solution Overview
Problem
Existing wireless communication devices face challenges in achieving low-cost designs without compromising quality or features, particularly in providing multi-band communication capabilities that allow seamless roaming across different frequency bands.
Innovation Solution
A circuit design featuring an antenna interface module with multiple reception paths and filter elements that form differential outputs, reducing the number of amplification elements and integrated circuits needed, thereby lowering manufacturing costs and improving cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multi-band communication transceivers are included to enable roaming between different frequency bands, then communication versatility is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines multiple reception paths into a single integrated circuit. Specifically, first and second reception paths are integrated into one IC, reducing the total number of separate amplification elements and integrated circuits needed for multi-band communication while maintaining the ability to handle multiple frequency bands
Solution Approach 2:
The integrated circuit is designed to perform multiple functions by incorporating multiple reception paths within a single device. This universal design allows the transceiver to handle different frequency bands (e.g., GSM 850/900/1800/1900 MHz) through a unified architecture, reducing overall system complexity
2Reliability
If multiple reception paths are implemented for different frequency components, then communication quality is improved, but manufacturing cost increases
Solution Approach 1:
Multiple reception paths are merged into a single integrated circuit rather than using separate discrete components. This consolidation maintains the quality needed for multiple frequency bands while significantly reducing manufacturing costs through economies of scale and reduced assembly complexity
Solution Approach 2:
The patent changes the architectural parameter from discrete separate paths to an integrated multi-path system. By altering the physical implementation parameters (integrating multiple paths into one IC), the system maintains communication quality across different frequency bands while improving ease of manufacture
Data Source
AI summary
One embodiment relates to a circuit for efficient wireless communication. The circuit includes an antenna interface module adapted to receive multiple frequency components via an antenna. Multiple reception paths stem from the antenna interface module, where different reception paths are associated with different frequency components. The circuit also includes multiple filter elements having inputs respectively coupled to the multiple reception paths. At least two of the filter elements cooperatively form a differential output signal based on their respective frequency components. Other methods and systems are also disclosed.