Dual-Radiator Terminal Layout for Omnidirectional Signal Coverage
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Solution Overview
Problem
Terminal devices often suffer from poor signal reception and transmission due to design defects in antenna radiation directivity, leading to inconsistent performance across different directions of use.
Innovation Solution
A terminal device design featuring a first radiator on the rear cover and a second radiator on the display screen, utilizing complementary radiation intensities to provide omni-directional coverage, with the rear cover incorporating a metal body and a non-metal decorative cover to enhance signal radiation without shielding issues, and the radiators configured to cover multiple frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single radiator is used in the terminal device, then the device structure is simple, but the signal reception and transmission performance is poor in certain directions
Solution Approach 1:
The patent divides the radiation function into two separate radiators: a first radiator facing the rear cover and a second radiator facing the display screen. This segmentation allows each radiator to be optimized for specific directions, improving overall signal reception and transmission performance while maintaining reasonable device complexity through modular design.
Solution Approach 2:
The patent applies local quality by positioning radiators at different locations with different orientations. The first radiator is specifically positioned to radiate through the rear cover in certain directions, while the second radiator is positioned to radiate through the display screen in other directions, creating directionally optimized signal coverage.
2Reliability
If the rear cover is made entirely of metal to enhance structure, then the structural strength is improved, but signal radiation is blocked causing poor reception
Solution Approach 1:
The patent employs composite material design for the rear cover, combining metal and non-metal materials. The metal portion provides structural strength while the non-metal portion allows signal radiation to pass through, thereby resolving the contradiction between structural integrity and signal transmission capability.
Solution Approach 2:
The rear cover is designed with different material properties in different regions: metal material in areas requiring structural strength and non-metal material in areas requiring signal transmission. This local differentiation allows the rear cover to simultaneously achieve both structural strength and signal radiation capability.
3Reliability
If radiators are positioned to optimize directional signal strength, then performance in certain directions is improved, but dead spots appear in other directions
Solution Approach 1:
The patent segments the signal coverage responsibility between two radiators positioned at opposite sides of the device. The first radiator handles signal radiation in directions toward the rear cover, while the second radiator handles directions toward the display screen, together providing comprehensive omnidirectional coverage without dead spots.
Solution Approach 2:
The patent adds spatial dimensionality to the radiation strategy by placing radiators on opposite sides of the device (front and back). This three-dimensional arrangement ensures that signals can be transmitted and received effectively from any direction, eliminating dead spots that would occur with single-sided radiator placement.
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 ensures consistent and improved signal reception and transmission across all directions, eliminating dead spots and enhancing user experience by leveraging the radiation patterns of both radiators, while maintaining a strong and aesthetically pleasing structure.
Implementation Method 1
a first radiator 3 arranged in the terminal device and facing the rear cover 1, configured to radiate a first signal outwards through the rear cover 1
Implementation Method 2
a second radiator 4 arranged in the terminal device and facing the display screen 2, configured to radiate a second signal outwards through the display screen 2
Data Source
AI summary
The disclosure relates to a terminal device. The terminal device includes a rear cover, a display screen, a first radiator and a second radiator, where the first radiator is arranged in the terminal device and faces the rear cover to radiate a first signal outwards through the rear cover, the second radiator is arranged in the terminal device and faces the display screen to radiate a second signal outwards through the display screen.