Switchable Housing Antenna Layout for Upward Satellite Directivity
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Solution Overview
Problem
Existing electronic devices face challenges in optimizing satellite communication performance due to the need for improved upward directivity in their antenna radiation patterns.
Innovation Solution
The electronic device incorporates a design with rotatable housings and conductive portions, along with a switch circuit to control electrical connections between frames, allowing for enhanced upward directivity in signal transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the antenna radiator is designed with fixed structure, then the manufacturing is simple, but the upward directivity cannot be optimized for satellite communication
Solution Approach 1:
The patent applies the dynamics principle by making the antenna radiator structure adjustable through a switching mechanism. The second conductive portion can be electrically connected to or isolated from the ground portion based on communication mode requirements. This allows the radiation pattern to be dynamically optimized for satellite communication (upward directivity) or terrestrial communication (omnidirectional pattern), resolving the contradiction between communication performance and structural simplicity.
2Reliability
If the second conductive portion is always connected to ground, then the structural stability is improved, but the upward directivity for satellite communication is reduced
Solution Approach 1:
The switching circuit enables dynamic reconfiguration of the electrical connection between the second conductive portion and ground. During satellite communication mode, the switch connects the second conductive portion to the ground through the switching circuit, creating asymmetric current distribution that generates upward directivity. This dynamic adjustment resolves the contradiction between maintaining structural stability and achieving optimized radiation patterns.
3Reliability
If multiple conductive portions are spaced apart, then the radiation pattern control is improved, but the device complexity increases
Solution Approach 1:
The patent applies the universality principle by designing the second conductive portion to serve multiple functions: it acts as part of the antenna radiator for satellite communication, provides structural support within the housing, and can be selectively connected to ground through the switching circuit. This multi-functionality allows radiation pattern optimization without proportionally increasing 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 design enhances satellite communication performance by optimizing radiation patterns for better signal transmission and reception, particularly in folded states.
Implementation Method 1
at least a portion of the conductive portion may operate as an antenna radiator for transmitting and/or receiving a signal
Implementation Method 2
a first switch circuit configured to connect the ground portion and the second frame
Data Source
AI summary
An electronic device is provided. The electronic devices includes at least one processor, a first housing including a first frame including a first conductive portion and a second conductive portion, a second housing including a second frame including a third conductive portion and a fourth conductive portion, a wireless communication circuit configured to transmit or receive signals in a designated frequency band through at least a part of the first conductive portion, a printed circuit board which is positioned in the second housing and includes a ground portion, and a first switch circuit configured to connect the ground portion and the second frame, wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to control the first switch circuit based on a state having a higher upward directivity among a first state in which the second frame is electrically separated from the ground portion and a second state in which the second frame is electrically connected to the ground portion.