Patch Resonator Power Distributor for Low-Radiation RF Splitting
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Solution Overview
Problem
High-frequency circuits face issues with unwanted radiation due to sharp bends in circuit lines, which complicates power distribution.
Innovation Solution
A power distributor is designed with a dielectric substrate and a rectangular patch resonator, featuring input and output sides, input terminals, and output terminals, along with an opposite phase regulator to adjust the phase of the fundamental wave, thereby facilitating power distribution while minimizing unnecessary radiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional rat race circuit is used for power distribution, then power distribution function is achieved, but unwanted radiation occurs due to sharp bends in circuit lines
Solution Approach 1:
The patent replaces sharp bends with curved transitions in the circuit lines. The feed line and patch antenna connections use curved paths instead of angular joints, which reduces electromagnetic radiation while maintaining the power distribution function. This is explicitly mentioned in the background section where sharp bends cause unwanted radiation problems.
2Object-generated harmful factors
If curved lines are used to suppress radiation, then unwanted radiation is reduced, but circuit complexity and design difficulty increase
Solution Approach 1:
The patent optimizes specific geometric parameters of the curved lines, such as curvature radius and arc length, to achieve radiation suppression while keeping the design practical. The feed line dimensions and patch antenna proportions are carefully adjusted to maintain resonance characteristics while using curved transitions, balancing performance and design complexity.
3Reliability
If opposite phase regulator is added to improve power distribution characteristics, then power distribution performance is enhanced, but device complexity increases
Solution Approach 1:
The opposite phase regulator acts as an intermediary component that adjusts the phase of signals fed to the patch antenna. By introducing this phase control element, the patent achieves better power distribution and radiation patterns without fundamentally changing the basic feed line structure, thus managing complexity through a dedicated control component.
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 configuration effectively distributes power while suppressing unwanted radiation, achieving stable and efficient power distribution characteristics over a wide frequency band.
Implementation Method 1
a rectangular patch resonator formed on the dielectric substrate having a width corresponding to 1⁄2 wavelength of a fundamental wave
Implementation Method 2
an opposite phase regulator that adjusts a phase of a fundamental wave input from the second input terminal to the patch resonator in reverse phase with respect to the fundamental wave input from the first input terminal to the patch resonator
Data Source
AI summary
A power distributor includes a dielectric substrate, a rectangular patch resonator, a first input terminal, a first output terminal, and a second output terminal. The rectangular patch resonator is configured to be formed on the dielectric substrate, having a width corresponding to ½ wavelength of a fundamental wave, having an input side and an output side mutually facing, extending in the width direction. The first input terminal is configured to be connected to a first side relative to a center of the input side. The first output terminal is configured to be connected to the first side relative to the center of the output side. The second output terminal is configured to be connected to a second side opposite to the first side relative to the center of the output side.