Step-Shaped Horn Antenna Signal Feed-In Design
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Solution Overview
Problem
Conventional radar level meters face challenges in determining resonating modes and achieving stable assembly of waveguide apparatuses, leading to inadequate signal quality and narrow bandwidth due to complex design and assembly issues with feed-in connectors and medium converters.
Innovation Solution
A horn antenna device with a step-shaped signal feed-in apparatus featuring a fixture base, stepped body, and conical horn antenna, allowing direct connection of high-frequency signals and improved stability, enabling easier determination of resonating modes and increased bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional waveguide apparatus with feed-in connector and medium converter is used, then the structure can transmit electromagnetic waves, but the resonating modes are difficult to determine and the design becomes complicated and time-consuming
Solution Approach 1:
The patent extracts and eliminates the complex feed-in connector and medium converter components from the waveguide apparatus. By directly coupling the antenna element to the waveguide cavity, it removes the intermediate components that caused design complexity and difficulty in determining resonating modes, while maintaining the essential function of electromagnetic wave transmission.
Solution Approach 2:
The patent merges the functions of the feed-in connector and medium converter directly into the waveguide cavity structure. The antenna element is directly coupled to the cavity without separate intermediate components, simplifying the overall structure while maintaining impedance matching and resonating mode control capabilities.
2Reliability
If a conventional waveguide apparatus is assembled, then the components can be put together, but assembly problems occur such as misalignment and inadequate stability
Solution Approach 1:
The patent combines multiple components into a more integrated structure where the antenna element is directly coupled to the waveguide cavity. This integration eliminates the separate assembly steps for feed-in connectors and medium converters, reducing misalignment issues and improving assembly stability while maintaining ease of construction.
Solution Approach 2:
The patent segments the waveguide apparatus into distinct functional regions (input region with waveguide cavity, resonating region, and output region) that can be independently designed and assembled. This segmentation allows for standardized interfaces and simplified assembly procedures while ensuring proper alignment and stability.
3Productivity
If a conventional waveguide apparatus is used, then the device can operate, but the bandwidth is narrow and signal quality is inadequate
Solution Approach 1:
The patent optimizes key parameters including the waveguide cavity dimensions, antenna element geometry, and coupling configurations to broaden the operating bandwidth. By carefully adjusting these parameters, the device achieves wider bandwidth operation while maintaining high signal quality through improved resonating mode control and reduced losses.
Solution Approach 2:
The patent introduces dynamic characteristics to the waveguide apparatus through variable impedance matching sections and adjustable coupling mechanisms. This allows the device to adapt to different operating conditions and maintain optimal signal quality across a broader frequency range, effectively increasing the usable bandwidth.
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 enhances signal quality by narrowing the main lobe width, decreasing side lobe energy, and increasing signal-to-noise ratio, resulting in a wider bandwidth and improved stability of the horn antenna device.
Implementation Method 1
The horn antenna device comprises a step-shaped signal feed-in apparatus and a conical horn antenna... the conical horn antenna having a signal input-and-output (I/O) end connected to the second end of the fixture base... and a signal radiating end distal to the signal I/O end
Data Source
AI summary
The present invention relates to a horn antenna device. The horn antenna device has a step-shaped signal feed-in apparatus and a conical horn antenna. The step-shaped signal feed-in apparatus has a stepped body having multiple stairs and a connecting pin. The stepped body is adapted to radiate electromagnetic waves and receive a reflection of the electromagnetic waves. According to the structure of the step-shaped signal feed-in apparatus of the invention, the resonating modes are easy to be determined. The directivity and the signal-to-noise rate are improved. In addition, the connecting pin is directly connected to the stairs for improving the signal stability of the horn antenna device.