Co-frequency Microwave Detection Antenna with Shared Oscillation Circuit
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Solution Overview
Problem
Conventional microwave detectors face limitations in accurately detecting the motion state of objects due to fixed detection areas, interference between multiple detectors, and complex signal processing, leading to increased costs and delayed detection times.
Innovation Solution
A multiple co-frequency microwaves detection antenna system with at least two radiation sources connected to a shared oscillation circuit unit, allowing them to emit microwaves with the same frequency, reducing interference, and facilitating simultaneous detection across multiple areas with unified frequency parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple microwave detectors are distributed at different positions to enlarge detection area, then detection coverage is improved, but system complexity and calculation difficulty increase
Solution Approach 1:
The patent combines multiple radiation sources and their detection circuits into a single integrated antenna system. Multiple radiation sources share common components including the oscillation circuit unit, reference ground, substrate, and detection circuit, merging what would otherwise be separate detector systems into one unified device that achieves enlarged detection area without proportional increase in system complexity
Solution Approach 2:
The integrated antenna system performs multiple detection functions simultaneously through its multiple radiation sources. Each radiation source can detect motion states in different spatial directions or areas, allowing the single system to cover multiple detection zones without requiring separate dedicated detectors for each zone
2Measurement precision
If multiple microwave detectors are used to cover different detection spaces, then detection comprehensiveness is improved, but signal transmission and connection complexity increase
Solution Approach 1:
The patent merges multiple detection circuits into a single integrated detection circuit that processes signals from all radiation sources. This unified signal processing approach eliminates the need for separate signal transmission paths and external information processing centers, reducing connection complexity while maintaining comprehensive detection capability
3Reliability
If microwave detectors with independent circuits are used, then detection independence is improved, but frequency uniformity and synchronization become difficult to achieve
Solution Approach 1:
The patent merges multiple radiation sources into a single antenna system that shares one common oscillation circuit unit. This ensures that all radiation sources operate at the same frequency with synchronized timing, achieving frequency uniformity and synchronization that is difficult to obtain with independently circuited detectors, while the spatial separation of radiation sources maintains detection independence
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 solution enhances detection efficiency and accuracy by allowing independent and synchronized microwave transmission and reception, simplifying signal processing, and dynamically adjusting the detection area to improve the reliability and speed of motion state determination.
Implementation Method 1
an oscillation circuit unit (30), wherein the radiation sources are spacedly arranged at the reference ground (10), and a radiation gap (40) is formed between each of the radiation sources (20) and the reference ground (10), wherein the feed points (21) of the radiation sources (20) are electrically connected to the oscillation circuit unit (30)
Implementation Method 2
at least two radiation sources (20)... capable of radiating microwaves outward with the same frequency
Data Source
AI summary
A multiple co-frequency microwaves detection antenna includes an oscillation circuit unit, a reference ground and at least two radiation sources. The radiation sources each has a feed point and are arranged spacedly at the reference ground. A radiation gap is formed between each of the radiation sources and the reference ground. The feed point of the radiation source is electrically connected to the oscillating circuit unit.