3D Stacked Antenna Assembly for Millimeter Wave Signal Efficiency
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Solution Overview
Problem
Next-generation communication technologies using ultra-high-bandwidth frequencies face challenges in signal transmission efficiency due to the short wavelength of millimeter waves, leading to degraded radio wave characteristics and increased power loss, necessitating improved antenna designs to enhance data throughput and coverage without increasing transmit power.
Innovation Solution
The electronic device incorporates a housing with a specific antenna assembly design featuring multiple conductive cell layers and a power feeding structure, where conductive cells with varying patterns and spacings are arranged to optimize antenna performance, enhancing signal transmission and reception efficiency across a wide frequency range of 3 GHz to 300 GHz.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If ultra-high-bandwidth frequency (20 GHz or more) is used for next-generation communication, then smaller and more light antennas can be implemented with shorter wavelengths, but the straightness of radio wave becomes strong and loss in propagation path severely occurs
Solution Approach 1:
The patent transitions from conventional two-dimensional planar antenna arrays to a three-dimensional stacked antenna structure. Multiple antenna elements are arranged in vertical layers (first plane, second plane, third plane) at different heights above the ground plate, creating spatial diversity in the vertical dimension. This 3D configuration enables the antenna to overcome propagation path loss by providing multiple signal paths and improving radiation efficiency at ultra-high frequencies while maintaining compact overall dimensions.
2Productivity
If transmit power is increased to enhance data throughput and communication coverage, then signal transmission performance improves, but power consumption increases
Solution Approach 1:
The patent optimizes antenna performance by carefully controlling geometric parameters including the spacing between stacked planes, the dimensions of conductive plates and islands, and the distances from the ground plate. These parameter optimizations improve radiation efficiency and impedance matching, enabling high data throughput at reduced transmit power levels.
Solution Approach 2:
By adding the vertical dimension with stacked antenna planes at different heights, the patent creates a three-dimensional radiation pattern that improves signal coverage and throughput without requiring proportional increases in transmit power, thereby improving power efficiency.
3Quantity of substance
If multiple antennas are mounted in the same area due to short wavelength, then antenna density increases, but radio wave propagation characteristics are degraded
Solution Approach 1:
The patent resolves antenna density issues by utilizing the vertical dimension. Instead of packing multiple antennas in a confined two-dimensional plane, the design stacks antenna elements at different heights (first plane, second plane, third plane), spacing them vertically above the ground plate. This vertical separation reduces mutual coupling and interference between adjacent antennas while maintaining high antenna quantity within the same horizontal footprint, thereby preserving radio wave propagation characteristics.
4Productivity
If patch antenna array is used to increase transmit gain, then communication coverage and data throughput improve, but device complexity increases
Solution Approach 1:
The antenna structure is segmented into distinct functional layers: a ground plate, multiple stacked planes (first, second, third planes) with conductive elements, and dielectric layers separating them. This segmentation allows for modular design and manufacturing while achieving the desired transmit gain for improved coverage.
Solution Approach 2:
The patent employs composite construction combining conductive materials (plates and islands), dielectric materials (insulating layers), and structural support elements. This composite approach enables the antenna to achieve high performance with a manageable structural complexity by leveraging the complementary properties of different materials.
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 improves antenna gain and resonance frequency characteristics, achieving higher data throughput and coverage while maintaining the same power feeding environment, effectively addressing the challenges of signal loss and efficiency in high-frequency communication.
Implementation Method 1
configured to supply a signal having a frequency range of 3 GHz to 300 GHz
Implementation Method 2
conductive islands having a first repeating pattern and disposed on the first plane within a second area surrounding the first area
Implementation Method 3
improves antenna gain and resonance frequency characteristics
Data Source
AI summary
An electronic device may include a wireless communication circuitry, an antenna device to transmit or receive a signal associated with an operation of the wireless communication circuitry. The antenna device may include a ground layer, at least one antenna radiator disposed at an upper portion of the ground layer, a first cell layer in which a plurality of conductive cells having a first size and shape are repeatedly disposed, with a specific distance, at a peripheral portion of the at least one antenna radiator, and a second cell layer in which a plurality of conductive cells having a second size and shape are disposed with a specific distance at a lower portion of the first cell layer and at the peripheral portion of the at least one antenna radiator. Moreover, various embodiment found through the disclosure are possible.