Tunable Aperture-Coupled Antenna for Wide 5G Band Coverage
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Solution Overview
Problem
The design of 5G antennas faces challenges due to the varying 5G spectrum distributions worldwide, as existing antennas have a narrow bandwidth, making it difficult to cover diverse 5G spectrums effectively.
Innovation Solution
An antenna design featuring a first and second substrate with a dielectric layer in between, where the electric field adjusts the dielectric constant, allowing for a continuously tunable resonant frequency and a large tuning range, integrated tuning and radiation functions, and a low-profile structure, enhancing impedance bandwidth through slot and aperture coupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional antenna designs are used, then the structure is simple, but the bandwidth is narrow and cannot cover various 5G spectrums
Solution Approach 1:
The patent applies the dynamics principle by introducing a tunable resonant frequency mechanism through a dielectric layer with adjustable dielectric constant. The antenna transitions from a fixed-frequency design to a dynamically adjustable one, allowing continuous tuning across 5G spectrum bands by changing the dielectric constant of the layer between substrates.
Solution Approach 2:
The patent uses composite materials by combining multiple substrates (first and second substrates) with a dielectric layer having可调 dielectric constant. This composite structure enables both mechanical stability and electrical tunability, achieving wide bandwidth coverage while maintaining structural integrity.
2Length of stationary object
If the antenna profile is reduced, then the device clearance zone is saved, but the impedance bandwidth may be limited
Solution Approach 1:
The patent applies parameter changes by utilizing the adjustable dielectric constant of the dielectric layer to compensate for the reduced physical size. By dynamically changing the dielectric parameter, the antenna maintains wide impedance bandwidth coverage despite having a compact, low-profile structure suitable for modern devices.
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 antenna achieves a wide frequency coverage, including the entire 5G frequency band N78 (3300 MHz to 3800 MHz), with a tunable resonant frequency range and increased impedance bandwidth, enabling adaptation to various 5G communication frequency bands while maintaining a low profile.
Implementation Method 1
the electric field between the first substrate and the second substrate can change the dielectric constant of the dielectric layer
Data Source
AI summary
The present disclosure provides an antenna and a manufacturing method thereof, and belongs to the field of communication technology. The antenna provided by an embodiment of the present disclosure includes: a first substrate and a second substrate opposite to each other, a dielectric layer provided therebetween, and a feed unit on a side of the second substrate away from the first substrate. The first substrate includes: a first base substrate; and a radiation unit on a side of the first base substrate close to the second substrate. The second substrate includes: a second base substrate; and a reference electrode layer on a side of the second base substrate away from the feed unit, the reference electrode layer has an opening, an orthographic projection of the opening on the second base substrate is at least partially overlapped with an orthographic projection of the radiation unit on the second base substrate.