Micro-Wave Transducer Layout for Wider 5G Sub-6 GHz Bandwidth

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Solution Overview

Problem

Current micro-wave transducers for 5G low frequency band communication face challenges in achieving high bandwidth and efficient radiation performance, particularly in the 3-6 GHz frequency range, due to limitations in design geometry and material selection.

Innovation Solution

A micro-wave transducer design featuring a dielectric layer with a specific structure, including a first electrode layer with openings and transducer electrodes on a flexible substrate, where the transducer electrodes and microstrip lines are strategically positioned to optimize intersection points and area ratios, enhancing bandwidth and radiation efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional transducer designs are used for 5G low frequency band communication, then basic radiation function is achieved, but bandwidth and radiation efficiency are insufficient

Engineering Contradiction:
Improvebandwidth and radiation efficiencyVSAvoidtransducer structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The transducer is divided into multiple independent transducer units, each consisting of a transducer electrode, feed line, and ground electrode with specific geometric relationships. This segmentation allows each unit to be optimized independently for bandwidth and radiation efficiency while maintaining overall system performance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements specific geometric constraints at critical locations: the distance between intersection points is limited to ≤ half the maximum opening dimension, and the area ratio between transducer electrode and opening is constrained to 0.017-0.67. These local quality controls optimize electromagnetic field distribution and impedance matching, directly improving bandwidth and radiation efficiency without requiring complex overall restructuring.

Inventive Principle:
Principle #3Local quality

2Reliability

If transducer electrodes and feed lines are positioned without specific geometric constraints, then manufacturing is simpler, but bandwidth and radiation performance are limited

Engineering Contradiction:
Improveoperating bandwidthVSAvoidpositioning precision of electrodes and feed lines
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent transforms the design approach by specifying quantitative geometric parameters: the distance between intersection points must be ≤ half the maximum dimension of the opening, and the area ratio between transducer electrode projection and opening projection must fall within 0.017-0.67. These parameter constraints optimize electromagnetic performance while providing clear manufacturing guidelines, balancing precision requirements with performance benefits.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The geometric constraints are built into the design stage itself, with predetermined relationships between opening positions, transducer electrode locations, and feed line routing. This preliminary action establishes optimal electromagnetic field distribution and impedance matching before manufacturing, ensuring consistent bandwidth and radiation performance without requiring post-processing adjustments.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If larger transducer electrode area is used, then radiation efficiency improves, but the area ratio constraint with openings limits further optimization

Engineering Contradiction:
Improveradiation efficiencyVSAvoidarea ratio of transducer electrode to opening
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The patent establishes an optimal area ratio range of 0.017-0.67 between transducer electrode projection and opening projection. This parameter optimization balances radiation efficiency (requiring sufficient electrode area) with electromagnetic field distribution (requiring appropriate opening area for feed line coupling and impedance matching), preventing both under-sized and over-sized electrode configurations.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The area ratio constraint is applied specifically at the interface region where transducer electrodes meet openings, creating localized optimization of electromagnetic field distribution. This ensures efficient energy radiation while maintaining proper coupling between feed lines and radiating elements, addressing the contradiction between electrode size and opening size at the critical interaction zone.

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

The proposed micro-wave transducer design achieves improved bandwidth and radiation efficiency, expanding its operating range and reducing space loss, thereby enhancing internet experience by effectively handling 5G Sub-6 GHz frequency band signals.

Implementation Method 1

one of the at least one transducer electrode, an orthographic projection of which on the dielectric layer is within an orthographic projection of one of the at least one first opening, the first opening and one of the at least one first microstrip line electrically connected to the transducer electrode form one transducer unit

Methodology Applied
Scientific EffectCapacitance: Capacitance

Implementation Method 2

at least one first microstrip line on the second surface of the dielectric layer, wherein one of the at least one first microstrip line is electrically connected to one of the at least one transducer electrode

Methodology Applied
Scientific EffectElectromagnetic wave propagation: Electromagnetic Induction

Implementation Method 3

a dielectric layer having a first surface and a second surface opposite to each other

Methodology Applied
Scientific EffectDielectric insulation: Dielectric

Data Source

PatentUS11876308B2Micro-wave transducer and manufacturing method thereof
Publication Date: 2024.01.16 BOE TECHNOLOGY GROUP CO LTD
  • US11876308B2 patent drawing
  • US11876308B2 patent drawing
  • US11876308B2 patent drawing

AI summary

The disclosure provides a micro-wave transducer and a manufacturing method thereof, and belongs to the technical field of communication. The micro-wave transducer includes: a dielectric layer having a first surface and a second surface oppositely arranged; a first electrode layer arranged on the first surface of the dielectric layer, and the reference electrode layer being provided with at least one first opening; at least one transducer electrode arranged on the second surface of the dielectric layer, wherein an orthographic projection of one transducer electrode on the dielectric layer is within an orthographic projection of one first opening on the dielectric layer; at least one first microstrip line arranged on the second surface of the dielectric layer, wherein one first microstrip line is configured to feed one transducer electrode.