Multi-Port Conductive Patch Antenna for Compact High-Gain Layouts
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Solution Overview
Problem
As electronic devices shrink in size, it becomes challenging to mount antenna structures with multiple elements while maintaining gain, as reducing the number of elements decreases performance.
Innovation Solution
An electronic device with a housing containing a conductive patch and wireless communication circuit that uses multiple feeding ports to connect to a single antenna element, allowing for high-frequency communication performance through a printed circuit board and conductive patches arranged in a specific configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the number of antenna elements is increased to maintain gain, then the gain of the antenna structure is improved, but the size of the antenna structure increases making it difficult to mount on the electronic device
Solution Approach 1:
The patent merges multiple feeding ports (first, second, third, and fourth feeding ports) to feed a single antenna element (first antenna element). This combining approach allows the system to maintain the performance benefits of multiple feeding ports while reducing the total number of antenna elements required, thereby decreasing the overall antenna structure size while preserving gain
Solution Approach 2:
The single antenna element serves multiple functions by being fed through multiple different feeding ports, each potentially providing different signal paths or polarizations. This multi-functionality allows the antenna element to achieve the performance characteristics of multiple antenna elements without requiring multiple physical elements
2Volume of moving object
If the number of antenna elements is decreased to reduce the size of the antenna structure, then the size of the antenna structure is reduced for easier mounting, but the gain of the antenna structure decreases
Solution Approach 1:
The patent combines multiple feeding ports to feed fewer antenna elements, specifically using four feeding ports to feed only two antenna elements. This merging of feeding resources compensates for the reduced number of antenna elements, maintaining the total feeding port count and thereby preserving the gain and performance characteristics that would otherwise require more antenna elements
3Power
If the total number of feeding ports is increased to increase the output power of the antenna array, then the output power of the antenna array is improved, but the device complexity increases
Solution Approach 1:
The patent merges the functionality of multiple feeding ports onto fewer antenna elements, creating a configuration where four feeding ports feed only two antenna elements. This reduces the overall system complexity compared to a traditional array where each antenna element would require its own dedicated feeding port, while still maintaining high output power through the multiple feeding paths
Data Source
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AI summary
An electronic device is provided that includes, an antenna structure including a printed circuit board including first and second surfaces, at least one conductive patch interposed between the first second surfaces or is disposed on the first surface, the conductive patch including first to fourth areas placed in a clockwise direction with respect to a first imaginary axis extended in a first direction on the conductive patch and a second imaginary axis intersecting the first imaginary axis and perpendicular to the first imaginary axis, and at least one wireless communication circuit that transmits and/or receives a first signal having a frequency between 3 and 100 GHz. The wireless communication circuit includes a first port electrically connected to a first position of the first area, and a second port electrically connected to a second position placed on an opposite side to the first position with respect to the first imaginary axis.