Integrated Stripline Circulator and Coupler for Loss Reduction
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Solution Overview
Problem
Current communication devices combining couplers and circulators suffer from power loss due to unnecessary losses such as total reflection and insertion loss, necessitating an integrated solution to reduce these losses.
Innovation Solution
An integral communication device is designed, incorporating a stripline circulator with magnetic assemblies, a conductive jointing piece, and coupling pieces that generate a magnetic field, reducing losses by simplifying transmission line matching and enhancing coupling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a combined device composed of a coupler and a circulator is used, then the unidirectional circulation performance is achieved, but power loss occurs due to total reflection and insertion loss
Solution Approach 1:
The patent merges the circulator and coupler into a single integrated device. The circulator body includes magnetic assemblies that generate a magnetic field, with conductive jointing pieces and coupling pieces positioned within the magnetic field. The coupling pieces have first coupling portions that generate coupling actions with line connecting arms, integrating both circulator and coupler functions in one structure to eliminate transmission line matching losses.
2Ease of operation
If transmission lines are used to match the coupler and circulator, then the devices can be connected, but unnecessary loss and additional cost are generated
Solution Approach 1:
The patent eliminates the need for separate transmission line matching by integrating the coupler directly into the circulator structure. The coupling pieces are positioned within the magnetic field of the circulator, with first coupling portions that directly interact with line connecting arms through magnetic coupling actions, removing the intermediate transmission lines that caused insertion loss.
3Reliability
If a combined device composed of a coupler and circulator is used, then the unidirectional circulation performance is achieved, but additional cost is generated
Solution Approach 1:
The patent combines two separate devices (circulator and coupler) into one integrated structure, reducing the total number of components that need to be manufactured, assembled, and tested. The magnetic assemblies, conductive jointing pieces, and coupling pieces form a unified structure that performs both circulator and coupler functions, thereby reducing manufacturing complexity and cost.
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 integrated device effectively reduces total reflection and insertion losses, achieving a coupling degree of 10 dB to 30 dB and simplifying the matching process, thereby improving overall performance.
Implementation Method 1
magnetic assemblies comprising a first magnetic assembly and a second magnetic assembly, the first magnetic assembly and the second magnetic assembly are opposite to each other so as to generate a magnetic field
Implementation Method 2
The principle of the circulator still lies in anisotropic characteristics of the ferrite material under a bias magnetic field
Implementation Method 3
the conductive jointing piece comprises a center conductor which is positioned within outer peripheral edges of the magnetic assemblies and positioned in the magnetic field and at least three line connecting arms which extend outwardly from the center conductor
Data Source
AI summary
Communication device comprising a stripline circulator and at least a coupling piece. The stripline circulator comprises: magnetic assemblies comprising a first magnetic assembly and a second magnetic assembly, the first magnetic assembly and the second magnetic assembly are opposite to each other so as to generate a magnetic field; and a conductive jointing piece positioned between the first magnetic assembly and the second magnetic assembly, the conductive jointing piece comprises a center conductor which is positioned within outer peripheral edges of the magnetic assemblies and positioned in the magnetic field and at least three line connecting arms which extend outwardly from the center conductor. Each coupling piece comprising a first coupling portion positioned within the outer peripheral edges of the magnetic assemblies and positioned in the magnetic field, the first coupling portion is positioned in a space between the first magnetic assembly and the second magnetic assembly, the first coupling portion and one corresponding line connecting arm are opposite to each other so as to generate a coupling action.