Radome Partition Wall Enhancing Radar Isolation

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Solution Overview

Problem

Existing radar apparatuses face challenges in achieving sufficient isolation between transmitted and received millimeter-wave radar waves, leading to increased reception noise and reduced detection performance due to wave leakage, and previous solutions require additional components and manufacturing steps.

Innovation Solution

A radome with an integrally formed partition wall made of material transparent to radar waves is used to cover the antenna substrate, dividing the internal space into two sections, effectively reflecting transmitted waves and enhancing isolation without adding components or manufacturing operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a partition wall is installed between transmitting and receiving antenna sections to enhance isolation, then the isolation between transmitted and received waves is improved, but the number of component parts and manufacturing operations increases

Engineering Contradiction:

Improveisolation between transmitted and received wavesVSAvoidnumber of component parts

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The partition wall is integrated into the radome structure as a single unified component rather than being a separate part. The radome includes a first wall portion covering the transmitting antenna section and a second wall portion covering the receiving antenna section, with the partition function built into the wall structure itself. This merging eliminates the need for additional separate partition components while maintaining effective isolation between transmitted and received waves.

Inventive Principle:

Principle #5Merging (Combining)

2Reliability

Engineering Contradiction:

Improveisolation between transmitted and received wavesVSAvoidmanufacturing operations

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The partition function is combined with the radome structure so that a single radome component provides both the protective covering and the isolation function. The radome is manufactured as one integrated piece that includes wall portions for both antenna sections, eliminating the need for separate partition installation steps.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The radome structure serves multiple functions simultaneously: it protects the antenna sections, provides the necessary partitioning for isolation, and maintains the structural integrity of the radar apparatus. This multi-functionality reduces the total number of components and manufacturing operations required.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Measurement precision

If transmitted radar waves are directly received by the receiving antenna section without reflection, then the detection range is reduced due to increased noise floor, but adding a partition wall increases manufacturing cost

Engineering Contradiction:

Improvedetection performanceVSAvoidcomponent parts

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The isolation function is merged into the radome structure itself, providing the necessary separation between transmitting and receiving sections without requiring additional components. This integrated approach maintains detection performance by preventing direct wave reception while avoiding increased device complexity.

Inventive Principle:

Principle #5Merging (Combining)

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 configuration significantly increases the isolation between transmitted and received waves, reducing noise and maintaining manufacturing cost efficiency by using a single, integrated radome structure.

Implementation Method 1

a radome (3) formed of a material transparent to radar waves

Methodology Applied

Scientific EffectRadar wave transparency: Electromagnetic Induction

Implementation Method 2

the partition wall (33) is configured such that when the radome (3) is installed on the radar apparatus with an internal space formed between the radome (3) and the antenna substrate (5), that internal space becomes divided into two internal spaces

Methodology Applied

Scientific EffectRadar wave reflection: Reflection

Data Source

PatentUS8674899B2Radome incorporating partition wall for enhancing isolation between transmitted and received radar waves of radar apparatus

Publication Date: 2014.03.18 DENSO CORP

AI summary

A radome covers an antenna substrate of a millimeter-band radar apparatus, with a partition wall formed integrally in the radome separating the internal space of the radome into a first internal space, located in correspondence with a transmitting antenna section, and a second internal space, located in correspondence with a receiving antenna section. Increased isolation between transmission and reception is achieved thereby, by reducing the amount of transmitted radar waves which directly reach the receiving antenna section.