Two-Element Antenna Decoupling Circuit for Lower Electromagnetic Coupling
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Solution Overview
Problem
Wireless devices with multiple antennas face reduced antenna gains due to significant electromagnetic coupling, necessitating complex adjustments and increased manufacturing costs with existing decoupling circuits.
Innovation Solution
A decoupling circuit using two circuit elements, a reactance element and a susceptance element, to adjust reactance and susceptance values, reducing electromagnetic coupling between antennas, thereby simplifying adjustments and lowering manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If three circuit elements are used to reduce electromagnetic coupling between antennas, then the coupling reduction effect is achieved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent extracts and eliminates one circuit element from the conventional three-element decoupling circuit, reducing it to two elements. Specifically, the invention removes the need for one reactance element by designing a circuit that uses only one reactance element and one susceptance element, thereby simplifying the circuit structure while maintaining the electromagnetic coupling reduction effect
Solution Approach 2:
The patent changes the circuit parameters by reducing the number of circuit elements from three to two. This parameter change is achieved by optimizing the configuration and values of the remaining two elements (one reactance element and one susceptance element) to compensate for the removed element, thereby maintaining the decoupling performance with fewer components
2Object-affected harmful factors
If three chip components are used for decoupling, then the coupling reduction is achieved, but the adjustment work and manufacturing cost increase
Solution Approach 1:
The patent extracts and eliminates one chip component from the conventional three-component decoupling circuit. By using only two chip components (one reactance element and one susceptance element), the invention reduces the adjustment work from calibrating three components to calibrating two components, thereby simplifying the manufacturing process and reducing costs
Solution Approach 2:
The patent changes the component count parameter from three to two, which directly impacts manufacturing ease. The optimized parameter values of the two remaining components are designed to achieve the same decoupling effect with fewer components, reducing both adjustment complexity and manufacturing 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 solution effectively reduces electromagnetic coupling between antennas, maintaining antenna gains, improving communication quality, and simplifying circuit adjustments while reducing manufacturing costs.
Implementation Method 1
Wireless devices including a plurality of antennas as radiating elements suffer from a problem that realized gains of the antennas are reduced due to large electromagnetic coupling among the antennas
Data Source
AI summary
According to one embodiment, electronic circuitry, includes a first radiating element; a second radiating element; a first circuit element including a first end and a second end, the first end being connected to one end of one of the first radiating element or the second radiating element; and a second circuit element connected between the second end of the first circuit element and one end of another of the first radiating element or the second radiating element.