Dielectric Resonator Electrode Impedance Matching Module
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Solution Overview
Problem
High-frequency components with unbalanced input and output terminals, when connected to external circuits, require additional impedance matching circuits, leading to increased size and cost due to the need for multiple circuit components, limiting the reduction of module size and cost.
Innovation Solution
The integration of a second resonator electrode in the dielectric substrate allows for impedance adjustment, eliminating the need for external impedance matching circuits by varying the resistive and susceptive components through the connection position and width of the resonator electrodes, reducing the number of parts and module size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external impedance matching circuits are inserted between the high-frequency component and external circuits, then impedance matching is achieved, but the overall module size and mounting area increase
Solution Approach 1:
The patent combines the impedance matching function with the filter structure by integrating impedance matching circuits into the dielectric substrate where the filter is formed. This merging eliminates the need for separate external impedance matching circuits, thereby reducing the overall mounting area while maintaining impedance matching capability.
Solution Approach 2:
The dielectric substrate serves multiple functions: it provides the structural base for the filter, acts as the medium for forming impedance matching circuits, and enables both filtering and impedance matching functions within a single integrated component, reducing the need for additional separate components.
2Adaptability or versatility
If multiple circuit components are used to construct the impedance matching circuit, then various impedance matching applications are supported, but the number of parts and circuit complexity increase
Solution Approach 1:
The patent achieves various impedance matching applications by changing the parameters of the impedance matching circuits formed in the dielectric substrate, such as adjusting the dimensions, positions, and configurations of conductive patterns. This allows different impedance matching characteristics to be obtained without increasing circuit complexity or the number of components.
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
This configuration results in a smaller, cost-effective module with reduced mounting area, as the impedance matching function is integrated within the resonator electrodes, minimizing the need for additional circuit elements.
Implementation Method 1
the impedance of the circuit element disposed in the dielectric substrate is adjusted by the impedance component of the second resonator electrode
Implementation Method 2
a filter having a plurality of resonator electrodes and an impedance matching circuit, which comprises a circuit element (electrode or the like), the filter and the impedance matching circuit being disposed in a dielectric substrate
Data Source
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AI summary
A passive part (50A) includes a filter unit (52) having first resonance electrode (34a) to a third resonance electrode (34c) and an impedance matching circuit unit (54) electrically connected to the third resonance electrode (34c) of the filter unit (52) arranged on a dielectric substrate (32). The entire passive part (50A) has a configuration including a circuit unit equivalent to characteristic containing the second impedance matching circuit by an impedance component of the third resonance electrode (34c). For example, by modifying the width (Wc) of the third resonance electrode (34c), it is possible to adjust the impedance in the same way as when a capacitance as the impedance matching circuit unit (54)is connected, without connecting any capacitance.