Antenna Feed Bolt for Reliable RF Coupling
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Solution Overview
Problem
Forming reliable antenna feed structures in electronic devices is challenging due to the complexity of manufacturing and ensuring reliable coupling between radio-frequency transceiver circuitry and antennas.
Innovation Solution
The use of conductive housing structures with slots or openings to form antennas, coupled with antenna feed bolts that span these openings, allowing for the formation of resonating elements such as slot or inverted-F antennas, and the integration of transmission lines with radio-frequency connectors to facilitate wireless communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional antenna feed structures are used, then manufacturing simplicity may be maintained, but reliability of antenna coupling is insufficient
Solution Approach 1:
The antenna feed structure merges the connector housing, connector, and antenna tuning circuit into a single integrated assembly. The housing contains both the connector interface and the tuning circuit components, eliminating the need for separate mounting operations and reducing assembly steps while improving coupling reliability.
Solution Approach 2:
The connector housing serves multiple functions: it provides mechanical support for the connector, houses the antenna tuning circuit components, provides electrical grounding paths, and facilitates mounting to the antenna structure. This multi-functionality reduces the number of separate components needed.
2Reliability
If antenna feed structures are made more reliable, then wireless communication performance improves, but manufacturing difficulty increases
Solution Approach 1:
The antenna feed system is segmented into modular components: the connector housing with integrated tuning circuit, the antenna element, and the mounting structure. This segmentation allows each component to be manufactured and tested independently, then assembled together, improving overall manufacturing efficiency while maintaining reliability.
Solution Approach 2:
The antenna tuning circuit is pre-assembled and pre-adjusted within the connector housing before final installation on the antenna. This preliminary configuration ensures proper tuning is achieved during assembly rather than requiring post-installation adjustments, simplifying the manufacturing process.
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 approach enables the reliable formation and operation of antennas within electronic devices, enhancing the manufacturing process and ensuring effective wireless communication capabilities.
Implementation Method 1
Antennas are used to transmit and receive radio-frequency communications signals
Implementation Method 2
The conductive structures and the opening in the conductive structures may be configured to form an antenna resonating element for a slot antenna, inverted-F antenna, or other suitable antenna
Data Source
AI summary
An electronic device may have metal structures such as metal electronic device housing structures and other conductive structures. The conductive structures may have a slot or other opening. An antenna may be formed from the conductive structures. Control circuitry in the electronic device may receive input from input-output devices and may use the input-output devices to provide a user with output. The control circuitry may be coupled to a radio-frequency transceiver that is used to transmit and receive wireless communications. The radio-frequency transceiver may be coupled to the antenna using a transmission line. The transmission line may have a radio-frequency connector that is coupled to a radio-frequency connector on an antenna feed bolt. The antenna feed bolt may have a shaft that spans the opening in the conductive structures and may be coupled to antenna feed terminals on opposing sides of the opening. The antenna may have a tuning bolt.