Aircraft Insert Surface Antennas With Hidden Multi-Band Reception

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Solution Overview

Problem

Conventional aircraft inserts with antennas are either placed inside, reducing reception, or externally visible, affecting aesthetics, and require multiple antennas for multiple frequencies.

Innovation Solution

Integration of a non-conductive body with a surface antenna assembly and conductive trace filter on the inner surface, allowing antennas to be hidden and configured to receive specific frequencies while passing desired signals, with a conductive trace filter to block unwanted frequencies.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If antennas are placed inside the equipment, then aesthetics are improved, but reception quality deteriorates

Engineering Contradiction:

ImproveaestheticsVSAvoidreception quality

Core Design Contradiction:

ShapeVSReliability

Solution Approach 1:

The antenna is integrated into the faceplate surface rather than being placed inside or protruding outward. The conductive trace antenna is disposed on the outer surface of the non-conductive faceplate, utilizing the surface dimension to achieve both aesthetic concealment and adequate signal reception by being positioned at the boundary between internal and external spaces.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If multiple antennas are used for multiple frequencies, then frequency coverage is improved, but device complexity increases

Engineering Contradiction:

Improvefrequency coverageVSAvoidnumber of antennas

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The conductive trace antenna structure is designed to handle multiple frequencies through a single integrated antenna system. The antenna can be configured with multiple legs or trace patterns that are electrically connected to handle different frequency ranges, eliminating the need for separate antennas for each frequency while maintaining multi-frequency capability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Reliability

If external antennas are installed on the outside, then reception quality is improved, but aesthetics deteriorate

Engineering Contradiction:

Improvereception qualityVSAvoidaesthetics

Core Design Contradiction:

ReliabilityVSShape

Solution Approach 1:

The antenna structure is merged with the faceplate itself. The conductive trace antenna is integrated into the non-conductive faceplate material, making the antenna and faceplate a unified component. This eliminates the need for separate external antenna installations while maintaining both aesthetic appearance and reception functionality.

Inventive Principle:

Principle #5Merging (Combining)

4Reliability

If conductive materials are used on the outer surface, then antenna functionality is improved, but EM emissions increase

Engineering Contradiction:

Improveantenna functionalityVSAvoidEM emissions

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The conductive trace antenna is positioned on the outer surface of the non-conductive faceplate, creating a localized conductive element rather than a fully conductive surface. The non-conductive faceplate material surrounding the trace confines and directs the electromagnetic fields, improving antenna functionality while the non-conductive properties of the faceplate help control and reduce overall EM emissions compared to a fully conductive external antenna.

Inventive Principle:

Principle #3Local quality

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

Enables hidden antennas that maintain reception without affecting aesthetics, allowing multiple frequencies to be received while adhering to aircraft device emissions limits.

Implementation Method 1

The conductive trace filter is an electromagnetic (EM) filter configured to block specific frequencies or frequency ranges

Methodology Applied

Scientific EffectElectromagnetic filtering: Filter (electronic)

Implementation Method 2

The non-conductive body is configured to pass at least the one or more predetermined frequencies

Methodology Applied

Scientific EffectElectromagnetic wave transmission and filtering: Dielectric

Data Source

PatentEP4020709B1Aircraft inserts having surface integrated antennas and/or filters

Publication Date: 2026.02.11 BE AEROSPACE INC

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AI summary

An antenna component (100) for an aircraft insert can include a non-conductive body (101, 301) having an outer surface and an inner surface. The inner surface can be configured to be hidden from view when installed on the insert. The antenna component (100) can include a surface antenna assembly disposed on the inner surface such that when the non-conductive body (101, 301) is installed on the insert the surface antenna is not visible. The surface antenna assembly (305) can be configured to receive one or more predetermined frequencies. The non-conductive body (101, 301) can be configured to pass at least the one or more predetermined frequencies.