Sliding Antenna Structure for Hand Coverage Signal Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless communication devices experience reduced radiation efficiency and degraded communication functions due to hand coverage of antennas, which is a common issue with multiple frequency band antennas located at different positions within the devices.
Innovation Solution
The antenna structure employs a sliding mechanism between two circuit boards, allowing flexible sheets to reconfigure antenna connections when covered, enabling seamless signal transmission between GPS and WIFI antennas by switching roles between different frequency bands based on user interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple antennas are located at different positions inside the device, then mutual interference between antennas is prevented, but radiation efficiency is reduced when antennas are covered by user's hand
Solution Approach 1:
The patent implements a dynamic antenna switching mechanism that automatically selects between GPS and WIFI antennas based on which one is currently uncovered. The system dynamically adjusts the active antenna configuration in response to hand coverage conditions, ensuring optimal radiation efficiency while maintaining communication reliability across different usage scenarios
Solution Approach 2:
The patent changes the operational parameter of antenna selection by switching between different frequency bands (GPS L1 band at 1575.42 MHz and WIFI 2.4 GHz band) based on hand coverage detection. This parameter change allows the system to maintain effective communication by transitioning to an uncovered antenna when the primary antenna is blocked
2Adaptability or versatility
If multiple antennas are secured inside the device for different frequency bands, then communication coverage is improved, but device complexity increases
Solution Approach 1:
The patent implements multi-functionality by enabling both GPS and WIFI antennas to serve dual purposes. The GPS antenna can handle both GPS signals and WIFI signals, while the WIFI antenna can handle both WIFI signals and GPS signals. This universal design allows the device to maintain comprehensive frequency band coverage while reducing the need for separate dedicated antennas for each function
Solution Approach 2:
The patent merges the functionality of multiple antennas by allowing them to share communication channels. The GPS antenna unit and WIFI antenna unit are combined into a unified antenna system that can switch between different frequency bands and communication protocols, thereby simplifying the overall antenna structure while maintaining adaptability across multiple frequency bands
Data Source
AI summary
An antenna structure includes a first circuit board having a first antenna unit and a second antenna unit, a second circuit board having a first radio member and a second radio member, and a sliding mechanism. The first antenna unit and the second antenna unit are configured for receiving and transmitting different wireless signals. The sliding mechanism slides the second circuit board relative to the first circuit board, to separate or connect the first antenna unit with the first radio member and the second antenna unit with the second radio member, thus enabling the first antenna unit or a combination of the second antenna unit and the second radio member to receive and transmit a first wireless signal; the second antenna unit or a combination of the first antenna unit and the first radio member receive to transmit a second wireless signal.