Transparent Antenna Unit With Overlapping Layers for Massive MIMO Uniformity

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Solution Overview

Problem

The existing massive MIMO antenna solutions, such as PCB and sheet metal stamping oscillators, suffer from non-uniformity issues, and the plastic oscillator solution struggles with large-area laser etching patterns, leading to high machining pressure and costs.

Innovation Solution

A transparent oscillator unit with a first bearing structure, radiation assembly, feed structure, and reference electrode layer, featuring overlapping orthographic projections to form a current loop, and a metal mesh structure for microwave signal transmission, allowing for easy machining and low cost.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If PCB or sheet metal stamping oscillator solutions are used with welding, then antenna uniformity deteriorates, but manufacturing simplicity is maintained

Engineering Contradiction:
Improveantenna uniformityVSAvoidmanufacturing simplicity
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent merges the oscillator body and bearing structure into a single integrated component made of transparent material. The radiation assembly, feed structure, and reference electrode layer are integrated within this unified structure, eliminating the need for separate welding operations between oscillator and PCB, thereby improving antenna uniformity while maintaining manufacturing simplicity through integrated construction

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent replaces the mechanical welding system with a transparent material-based electromagnetic structure. Instead of welding metal components together, the invention uses a transparent oscillator body with integrated bearing structures and electromagnetic elements that achieve the same function without mechanical joining, thus improving uniformity by eliminating weld-induced deformations

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Manufacturing precision

If plastic oscillator solution with integrated injection molding is used, then antenna uniformity improves, but machining cost increases

Engineering Contradiction:
Improveantenna uniformityVSAvoidmachining cost
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent changes the material parameter from conventional opaque plastic to transparent material, enabling laser etching to be performed on the oscillator body. This parameter change allows for simplified manufacturing processes using laser etching instead of complex integrated injection molding, thereby reducing machining costs while maintaining the uniformity benefits of integrated construction

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent replaces the complex integrated injection molding process with a simpler manufacturing approach using transparent material and laser etching. The transparent material allows for post-manufacturing laser etching of patterns, substituting the need for complex mold-based integrated injection molding, thus reducing machining costs while achieving the same uniformity results

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of manufacture

If large-area laser etching patterns are applied, then machining cost decreases, but antenna uniformity deteriorates

Engineering Contradiction:
Improvemachining costVSAvoidantenna uniformity
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The patent applies preliminary action by pre-forming the transparent oscillator body with integrated bearing structures and electromagnetic elements before laser etching. The orthographic projections of radiation assembly, feed structure, and reference electrode layer are pre-configured to overlap, ensuring uniformity is established in the base structure before any laser etching is performed, thus allowing cost-effective large-area etching without compromising uniformity

Inventive Principle:
Principle #10Preliminary action

4Device complexity

If traditional oscillator structures are used, then structural complexity is maintained, but microwave loss increases

Engineering Contradiction:
Improvestructural complexityVSAvoidmicrowave loss
Core Design Contradiction:
Device complexityVSLoss of energy

Solution Approach 1:

The patent merges multiple separate components (oscillator body, bearing structures, radiation assembly, feed structure, reference electrode layer) into a single integrated transparent structure. This consolidation eliminates interfaces and connections between separate parts, reducing reflection and mismatch losses, thereby decreasing microwave loss while maintaining manageable structural complexity through integrated design

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

The solution provides a uniform and cost-effective massive MIMO antenna with improved machining efficiency and reduced microwave loss, enabling a lighter and more efficient antenna system.

Implementation Method 1

a metal mesh structure for microwave signal transmission

Methodology Applied
Scientific EffectElectromagnetic wave transmission: Electromagnetic Induction

Implementation Method 2

orthographic projections of any two of the radiation assembly, the feed structure and the reference electrode layer on the second bearing structure at least partially overlap with each other

Methodology Applied
Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Data Source

PatentUS12555923B2Transparent oscillator unit, transparent antenna and antenna system
Publication Date: 2026.02.17 BEIJING BOE SENSOR TECH CO LTD
  • US12555923B2 patent drawing
  • US12555923B2 patent drawing
  • US12555923B2 patent drawing

AI summary

The present disclosure provides a transparent oscillator unit, a transparent antenna and an antenna system, and belongs to the field of communication technology. The transparent oscillator unit of the present disclosure includes: a first bearing structure including a first surface and a second surface opposite to each other; a radiation assembly on the first surface of the first bearing structure; a feed structure on the second surface of the first bearing structure; a second bearing structure on a side of the feed structure away from the radiation assembly, and fixed to the first bearing structure; and a reference electrode layer on the second bearing structure; wherein orthographic projections of any two of the radiation assembly, the feed structure and the reference electrode layer on the second bearing structure at least partially overlap with each other.