Integrated Reflection Plate Structure for Lighter 5G MIMO Antennas

Solution Overview

Problem

Conventional 5G MIMO antennas in base stations require separate electromagnetic shielding covers and radome installation enclosure frames, leading to material waste, increased weight, and installation time due to overlapping components.

Innovation Solution

Integration of reflection, radome installation, and electromagnetic shielding functions into a single component, the reflection plate, reducing the number of components and simplifying the antenna structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate electromagnetic shielding cover and radome installation enclosure frame are used, then electromagnetic shielding and radome installation functions are achieved, but weight and material usage increase

Engineering Contradiction:

Improveelectromagnetic shielding functionVSAvoidantenna weight

Core Design Contradiction:

ReliabilityVSWeight of stationary object

Solution Approach 1:

The patent combines the electromagnetic shielding cover and radome installation enclosure frame into a single integrated component. The reflection plate serves dual purposes: it provides electromagnetic shielding for the radio frequency processing unit while simultaneously serving as the mounting structure for the radome. This merging eliminates the need for separate shielding cover and enclosure frame, reducing weight and material usage while maintaining both electromagnetic shielding and radome installation functions.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The reflection plate is designed to perform multiple functions: it reflects radio frequency signals, shields the radio frequency processing unit from electromagnetic interference, and provides structural support for radome installation. By making the reflection plate multi-functional, the patent eliminates redundant components and reduces overall antenna weight while maintaining all necessary functions.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If separate electromagnetic shielding cover and radome installation enclosure frame are used, then electromagnetic shielding and radome installation functions are achieved, but manufacturing cost increases

Engineering Contradiction:

Improveelectromagnetic shielding functionVSAvoidmanufacturing cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent combines the electromagnetic shielding cover and radome installation enclosure frame into a single integrated component. The reflection plate serves dual purposes: it provides electromagnetic shielding for the radio frequency processing unit while simultaneously serving as the mounting structure for the radome. This merging eliminates the need for separate shielding cover and enclosure frame, reducing weight and material usage while maintaining both electromagnetic shielding and radome installation functions.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The reflection plate is designed to perform multiple functions: it reflects radio frequency signals, shields the radio frequency processing unit from electromagnetic interference, and provides structural support for radome installation. By making the reflection plate multi-functional, the patent eliminates redundant components and reduces overall antenna weight while maintaining all necessary functions.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Reliability

If separate electromagnetic shielding cover and radome installation enclosure frame are used, then electromagnetic shielding and radome installation functions are achieved, but installation time increases

Engineering Contradiction:

Improveelectromagnetic shielding functionVSAvoidinstallation time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent combines the electromagnetic shielding cover and radome installation enclosure frame into a single integrated component. The reflection plate serves dual purposes: it provides electromagnetic shielding for the radio frequency processing unit while simultaneously serving as the mounting structure for the radome. This merging eliminates the need for separate shielding cover and enclosure frame, reducing weight and material usage while maintaining both electromagnetic shielding and radome installation functions.

Inventive Principle:

Principle #5Merging (Combining)

4Reliability

If separate electromagnetic shielding cover and radome installation enclosure frame are used, then electromagnetic shielding function is achieved, but device complexity increases

Engineering Contradiction:

Improveelectromagnetic shielding functionVSAvoidantenna structure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the electromagnetic shielding cover and radome installation enclosure frame into a single integrated component. The reflection plate serves dual purposes: it provides electromagnetic shielding for the radio frequency processing unit while simultaneously serving as the mounting structure for the radome. This merging eliminates the need for separate shielding cover and enclosure frame, reducing weight and material usage while maintaining both electromagnetic shielding and radome installation functions.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The reflection plate is designed to perform multiple functions: it reflects radio frequency signals, shields the radio frequency processing unit from electromagnetic interference, and provides structural support for radome installation. By making the reflection plate multi-functional, the patent eliminates redundant components and reduces overall antenna weight while maintaining all necessary functions.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 integration reduces the weight and size of the antenna, decreases material usage, and lowers production costs while maintaining effective electromagnetic shielding and waterproofing.

Implementation Method 1

the first surface of the reflection plate integrates a radome installation function in addition to having a reflection function

Methodology Applied

Scientific EffectReflection: Reflection

Implementation Method 2

The heat sink is fastened to the second surface of the reflection plate

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS12548887B2Antenna and base station

Publication Date: 2026.02.10 HUAWEI TECH CO LTD

AI summary

An antenna and a base station, where the antenna includes: a reflection plate, a radome, a heat sink, a radiating element, and a transceiver. The reflection plate has a first surface and a second surface opposite to each other, the radome is disposed on the first surface of the reflection plate, and the radome and the first surface form an enclosed first accommodating space. The radiating element is disposed in the first accommodating space, so that the first surface of the reflection plate integrates a radome installation function. The heat sink is fastened to the second surface of the reflection plate, and the heat sink and the second surface form an enclosed electromagnetic shielding space. The transceiver is located in the electromagnetic shielding space, so that the second surface of the reflection plate has an electromagnetic shielding function.