Dual-Mode Wireless Transceiver with Shared Filter Amplifier
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Solution Overview
Problem
The integration of Wi-Fi and Bluetooth technologies into a single chip increases chip size and complexity due to the need for separate components and complex control mechanisms, contradicting the trend of miniaturization.
Innovation Solution
A dual-mode wireless transceiver device with a digital-to-analog conversion circuit, mixer circuits, a filter amplifier circuit, an analog-to-digital conversion circuit, and a transceiver control circuit, which operates in multiple modes to selectively process and transmit Wi-Fi and Bluetooth signals using shared components, reducing chip area and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If Wi-Fi and Bluetooth are integrated into a single chip with separate components, then both wireless communication standards can be supported, but the chip area increases
Solution Approach 1:
The patent merges Wi-Fi and Bluetooth transmission paths by using a single filter amplifier circuit that handles both standards. The filter amplifier circuit is configured to process signals for both Wi-Fi and Bluetooth modes, eliminating the need for separate filter amplifier circuits for each standard. This consolidation directly reduces chip area while maintaining support for both wireless communication standards.
Solution Approach 2:
The filter amplifier circuit is designed with multi-functionality to operate in both Wi-Fi and Bluetooth modes. The circuit can be dynamically configured through control signals to perform filtering and amplification for different wireless standards, allowing a single component to serve multiple purposes and reducing the overall component count on the chip.
2Reliability
If Wi-Fi and Bluetooth are implemented as independent circuits, then each standard can be processed independently, but the device complexity increases
Solution Approach 1:
The patent implements dynamic switching capability in the filter amplifier circuit, allowing it to be reconfigured between Wi-Fi and Bluetooth modes through control signals. This dynamic approach enables a single circuit to replace multiple static circuits, reducing overall device complexity while maintaining the ability to process different standards independently when needed.
Solution Approach 2:
The filter amplifier circuit uses parameter changes (such as switching filter coefficients and gain settings) to adapt between Wi-Fi and Bluetooth processing requirements. By changing operational parameters rather than using separate dedicated circuits, the system reduces complexity while maintaining the ability to independently process each wireless standard when required.
Data Source
AI summary
A wireless transceiver device includes an operation amplification circuit, a transmitter circuit, a receiver circuit, and a transceiver control circuit. The operation amplification circuit, according to a rate parameter and a filtering parameter, filters and amplifies an input signal and outputs a processed signal. The transmitter circuit selectively uses a first ratio or second ratio as the amplification parameter, converts an input signal into an analog signal, inputs the analog signal into the operation amplification circuit, mixes the processed signal with a local oscillating frequency and then output an output signal. The receiver circuit mixes an external signal with another local oscillating frequency, inputs the mixed signal into the operation amplification circuit, and converts the processed signal into a digital signal. The transceiver control circuit selectively and electrically connects the operation amplification circuit with the transmitter circuit or the receiver circuit.