Reflection Circuit Canceler for Wideband Leakage Wave Suppression
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Solution Overview
Problem
Existing canceler devices require multiple vector adjusters to generate cancellation signals based on the frequency characteristic of leakage waves, which is inefficient and costly.
Innovation Solution
A canceler device utilizing a line connector and a reflection circuit with variable resistors and a resonance circuit to generate cancellation signals without the need for multiple vector adjusters, allowing for frequency-dependent cancellation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple vector adjusters are provided to generate cancellation signals for wideband leakage waves, then the cancellation capability across frequency bands is improved, but the device complexity and cost increase
Solution Approach 1:
The invention divides the wideband frequency range into multiple frequency bands, with each band handled by a dedicated vector adjuster. This segmentation allows the system to achieve effective cancellation across the entire wideband range while keeping each individual vector adjuster simpler and more cost-effective than a single comprehensive solution would require.
2Device complexity
If a single vector adjuster is used for cancellation, then the device complexity is reduced, but the ability to generate frequency-dependent cancellation signals is insufficient
Solution Approach 1:
Each vector adjuster is designed to handle a specific frequency band, making the overall system universal across wideband frequencies. The plurality of vector adjusters collectively provides multi-functionality, where each unit specializes in a particular frequency range, enabling the system to adapt to different frequency characteristics of leakage waves across the entire operating band.
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 device effectively suppresses leakage waves by generating cancellation signals that match the frequency characteristic of the leakage waves, improving efficiency and reducing the need for multiple vector adjusters.
Implementation Method 1
a resonance circuit having a first end connected to a second end of the first variable resistor and a second end grounded
Data Source
AI summary
A canceler device includes: a line connector having a first terminal, a second terminal, and a third terminal, the line connector being configured to output a signal provided to the first terminal to the second terminal; and a reflection circuit to output a reflected wave of the signal output to the second terminal to the third terminal. The reflection circuit includes: a first variable resistor having a first end connected to the second terminal; a second variable resistor having a first end connected to the second terminal and a second end grounded; and a parallel resonance circuit having a first end connected to a second end of the first variable resistor and a second end grounded.