Ridged Blind-Mate Waveguide Flange for Wideband 5G Testing

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Solution Overview

Problem

Existing waveguide geometries are limited in frequency range and require multiple insertions for 5G frequency testing, increasing costs and inefficiency in high-volume production.

Innovation Solution

A ridged waveguide flange with at least two ridges for a blind mating interface, enabling efficient coupling and alignment with a test fixture for wide bandwidth testing, reducing misalignment risks and signal loss.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If standard commercial waveguide geometries are used for 5G frequency testing, then the waveguide can support limited frequency ranges, but multiple different waveguide geometries are required to cover the full 5G frequency range (24 to 53 GHz), increasing testing complexity and costs

Engineering Contradiction:

Improvefrequency range coverageVSAvoidnumber of waveguide geometries required

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies a universal ridged waveguide geometry that can operate across the entire 5G frequency range (24 to 53 GHz) without requiring multiple different waveguide types. This single waveguide design replaces what would traditionally require two or more different waveguide geometries, thereby reducing testing complexity while maintaining full frequency coverage capability

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Productivity

If coaxial connectors are used for high-volume production testing, then the testing process can be automated, but the connectors cannot support the required number of insertions (1 million mating cycles or more)

Engineering Contradiction:

Improvetesting automation capabilityVSAvoidconnector durability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent employs disposable or replaceable waveguide flange interfaces that are designed for high-cycle durability. These flanges can withstand 1 million or more mating cycles, making them suitable for high-volume production testing where traditional coaxial connectors would fail. The flanges are inexpensive enough to be replaced when worn, ensuring continuous reliable operation

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Productivity

If blind mating waveguide flanges are used for automated testing, then docking speed is increased and alignment is simplified, but mechanical and electrical discontinuities may occur at the interface

Engineering Contradiction:

Improvedocking speedVSAvoidconnection quality

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The blind mating waveguide flanges incorporate self-aligning features that automatically ensure proper mechanical and electrical contact during the docking process. The ridged waveguide structure and flange geometry are designed to self-correct minor misalignments, ensuring high connection quality without requiring complex alignment procedures or sacrificing docking speed

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS20250298077A1Antenna device and an automated test equipment with a ridged blind mating waveguide flange

Publication Date: 2025.09.25 ADVANTEST CORP

AI summary

An antenna device for establishing a wireless coupling to a device under test has an antenna structure, and a first blind mating waveguide flange coupled to the antenna structure, wherein the first waveguide flange comprises a ridged waveguide structure with at least two ridges.