Analyte Sensor Antenna System with Passive Reflective Element
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Solution Overview
Problem
Existing analyte sensor systems face challenges with signal shadowing and blocking due to the body or other obstructions, leading to poor signal reception and increased power consumption from repeated data packet transmissions.
Innovation Solution
The implementation of a passive reflective antenna system in conjunction with a main antenna, allowing the passive antenna to receive signals from a display device and re-radiate them towards the main antenna, even when signal paths are blocked, thereby maintaining communication without the need for additional active components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single antenna is used for wireless communication, then the device complexity is reduced, but signal reception reliability deteriorates due to body shadowing and blocking
Solution Approach 1:
The antenna system is segmented into a main antenna and a passive reflective antenna, each serving distinct functions. The main antenna handles direct communication while the passive reflective antenna addresses shadowed paths, dividing the communication task to improve overall reliability without requiring both antennas to be fully active simultaneously.
Solution Approach 2:
The passive reflective antenna acts as an intermediary element that receives signals from the display device and re-radiates them toward the main antenna when direct paths are blocked by the body. This intermediary approach allows signal relay without requiring the passive antenna to be a full active transceiver, maintaining simplicity while improving reliability.
2Reliability
If repeated data packet transmissions are used to overcome signal blocking, then signal reception reliability is improved, but power consumption increases
Solution Approach 1:
The passive reflective antenna is pre-configured and positioned to intercept and re-radiate signals before they are completely lost due to body shadowing. By having the reflective antenna ready in advance to handle blocked paths, the system avoids the need for repeated transmission attempts, thereby reducing power consumption while maintaining reliable communication.
3Reliability
If a passive reflective antenna is added to the system, then signal reception reliability is improved by reducing shadowing effects, but device complexity increases
Solution Approach 1:
The passive reflective antenna serves itself by automatically receiving and re-radiating signals without requiring active control, power management, or complex processing. It passively reflects signals toward the main antenna when needed, providing reliability improvement without adding complex control systems, thereby minimizing the increase in device complexity.
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 solution enhances wireless connectivity between the analyte sensor system and the display device by reducing signal loss and minimizing power consumption, thus improving the reliability and efficiency of data transmission.
Implementation Method 1
The second antenna is configured to receive the first signal from the first antenna and re-radiate the first signal towards the display device
Data Source
AI summary
Aspects of the present disclosure provide techniques for avoiding and/or reducing blocking of signals transmitted between an analyte sensor system and a display device. The analyte sensor system may include an analyte sensor configured to generate analyte data associated with analyte levels of a user. The system may include an antenna system having at least a first antenna and a second antenna. The first antenna is configured to transmit a first signal including at least the analyte data, and receive from a display device, a second signal including operational instructions. The second antenna is configured to receive the first signal from the first antenna and re-radiate the first signal towards the display device, and receive the second signal from the display device and re-radiate the second signal towards the first antenna. The system may include a circuit board configured to operatively connect the analyte sensor with the first antenna of the antenna system.