Lens Antenna Packaging Structure for 5G Wave Attenuation
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Solution Overview
Problem
Current antenna packaging structures for electronic devices suffer from high attenuation and loss of millimeter electromagnetic waves, particularly due to long transmission lines in traditional PCB packaging methods, which are not suitable for high-speed, lightweight, and energy-efficient devices, especially with the demands of 5G communication.
Innovation Solution
A lens antenna packaging structure is developed, comprising a rewiring layer stack, a feeder line, a plastic encapsulation layer, an antenna, and a lens, where the lens refracts the initial beam of electromagnetic waves into a desired shape, enhancing directivity and reducing attenuation and loss by converting spherical or cylindrical beams into planar beams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If traditional PCB packaging method is used, then assembly is straightforward, but transmission lines are long causing high attenuation and loss
Solution Approach 1:
The patent merges the antenna, lens, and packaging structure into a single integrated unit. The lens is directly formed on the antenna surface, and the entire assembly is packaged together as one component, eliminating the need for separate transmission lines and reducing energy loss through integration.
Solution Approach 2:
The lens acts as an intermediary component between the antenna and the external environment. It refracts and focuses the electromagnetic waves generated by the antenna, improving directional gain and reducing energy loss by optimizing the radiation pattern without requiring long transmission lines.
2Use of energy by moving object
If PCB packaging with long transmission lines is used, then connectivity is achieved, but power consumption increases
Solution Approach 1:
The integration of antenna and lens into a unified packaging structure eliminates long transmission lines, thereby reducing power consumption while maintaining signal transmission quality through direct electromagnetic radiation.
3Volume of moving object
If traditional packaging is used, then manufacturing is simple, but packaging volume is bulky
Solution Approach 1:
The patent combines multiple components (antenna, lens, packaging) into a single integrated structure, dramatically reducing the overall packaging volume while the manufacturing process achieves simplicity through unified fabrication techniques.
Solution Approach 2:
The lens is formed directly on the antenna surface in three dimensions, utilizing vertical space rather than horizontal expansion. This dimensional approach reduces the overall packaging footprint while maintaining functionality.
4Adaptability or versatility
If millimeter wave transmission is implemented, then 5G communication capability is achieved, but transmission attenuation and loss increase
Solution Approach 1:
The lens serves as an intermediary optical element that refracts and focuses millimeter wave electromagnetic waves, improving directional gain and reducing transmission attenuation by concentrating energy in the desired transmission direction.
Solution Approach 2:
The patent optimizes the lens parameters (refractive index, curvature radius, thickness) to specifically address millimeter wave transmission characteristics, changing the physical parameters to reduce energy loss at these high frequencies.
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
The lens antenna packaging structure improves the directional gain of electromagnetic waves, reducing attenuation and loss, and provides significant energy-saving benefits for 5G base stations and terminals by optimizing the beam shape and refractive index of the lens.
Implementation Method 1
a lens disposed on an outer surface of the antenna away from the plastic encapsulation layer, the lens refracts the initial beam to an output beam of a desired shape
Data Source
AI summary
The present disclosure provides a lens antenna packaging structure, a preparation method and an electronic device. The lens antenna packaging structure includes a rewiring layer stack, a feeder line, a plastic encapsulation layer, an antenna, a lens, a chip and a protruded solder ball. The lens covers the antenna, such that one or a combination of the spherical beam and the cylindrical beam radiated initially from the antenna will be refracted by the lens into a desired shape, to improve the directivity of the beam through the lens, which can enhance the directional gain of electromagnetic waves through the lens, reduce the attenuation and loss of the electromagnetic waves of the antenna, and produce a significant energy saving for 5G base stations and terminals.