Antenna RF Module Venting Through Reflector Grill Pins

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Solution Overview

Problem

Existing antenna designs face challenges in heat dissipation, particularly with patch-type radiation elements, as the radome obstructs heat dissipation towards the front direction, limiting the overall heat dissipation performance and requiring heat-generating components to be concentrated on the rear surface.

Innovation Solution

The antenna RF module is designed with reflector grill pins that ground radiation elements and block signal interference, allowing outside air to be introduced or discharged through these pins, and features a modular integration of RF filters, radiation elements, and radome covers to separate the installation space from the outside air, enabling distributed heat dissipation both forward and backward.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a radome is used to protect radiation elements, then protection from outside environment is improved, but heat dissipation toward front direction is obstructed

Engineering Contradiction:

Improveprotection from outside environmentVSAvoidheat dissipation

Core Design Contradiction:

ReliabilityVSTemperature

Solution Approach 1:

The radome is divided into a front radome and a rear radome that are separable from each other. The rear radome can be removed to expose the radiation elements and antenna board to outside air, enabling heat dissipation toward the front direction while the front radome remains to provide environmental protection.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The radome configuration is made dynamic and adjustable. The rear radome can be selectively removed or adjusted based on thermal conditions, allowing the system to transition between protected mode and heat dissipation mode as needed.

Inventive Principle:

Principle #15Dynamics

2Temperature

If radiation elements are exposed to outside air for heat dissipation, then heat dissipation performance is improved, but protection from surrounding environment deteriorates

Engineering Contradiction:

Improveheat dissipationVSAvoidprotection from surrounding environment

Core Design Contradiction:

TemperatureVSReliability

Solution Approach 1:

The radome is segmented into front and rear portions that can be independently controlled. The front radome provides continuous environmental protection, while the rear radome can be removed to enable heat dissipation without completely exposing the radiation elements to the environment.

Inventive Principle:

Principle #1Segmentation

3Device complexity

If heat-generating components are concentrated on rear surface, then heat dissipation direction is simplified, but space for heat dissipation is limited

Engineering Contradiction:

Improveheat dissipation designVSAvoidheat dissipation performance

Core Design Contradiction:

Device complexityVSTemperature

Solution Approach 1:

Heat dissipation is extended from a single rear direction to multiple directions by removing the rear radome. This creates a three-dimensional heat dissipation pattern where heat can escape toward the front, sides, and rear, significantly improving thermal management capability.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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 significantly improves heat dissipation performance, reduces the number of layers on the main board, facilitates maintenance by allowing individual RF module replacement, minimizes mutual thermal influence, and reduces product thickness.

Implementation Method 1

at least one reflector grill pin which grounds (GND) the radiation element module

Methodology Applied

Scientific EffectGrounding: Earthing

Implementation Method 2

at least one reflector grill pin arranged between the RF filter and the radiation element module... blocking signal interference

Methodology Applied

Scientific EffectElectromagnetic reflection: Reflection

Implementation Method 3

outside air being introduced from in front of the RF filter to in back of the RF filter or being discharged from in back of the RF filter to in front of the RF filter through the at least one reflector grill pin

Methodology Applied

Scientific EffectConvection: Convection

Data Source

PatentUS20230291117A1RF module for antenna, RF module assembly, and antenna apparatus comprising same

Publication Date: 2023.09.14 KMW INC

AI summary

The present disclosure relates to an antenna RF module and an antenna apparatus including the antenna RF modules. The antenna RF module includes an RF filter arranged on a front surface of a main board, a radiation element module arranged on a front surface of the RF filter, at least one reflector grill pin arranged between the RF filter and the radiation element module and grounding (GND) the radiation element module, outside air being introduced from in front of the RF filter to in back of the RF filter or being discharged from in back of the RF filter to in front of the RF filter through the at least one reflector grill pin, and a radome combined with the front surface of the RF filter and protecting the radiation element module from the outside.