Dielectric Radome Fixing Device for Parabolic Antennas
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Solution Overview
Problem
Existing radome fixing systems for parabolic reflector antennas require a high number of screws or bolts, which degrade radio performance due to metal roughness and complexity, while also being time-consuming to install and disassemble.
Innovation Solution
A fixing device with a reduced number of bolts, utilizing an upper and lower reinforcement, a dielectric spacer with a hollow cylinder and pins, and a bolt-nut system, where only one-third of the radome holes are used for fixing, minimizing radio interference and simplifying assembly/disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a high number of screws or bolts are used to fix the radome to the reflector, then the mechanical strength and reliability of the connection is improved, but the radio performance degrades due to metal roughness and the complexity of the fixing system increases
Solution Approach 1:
The patent extracts the harmful metal bolts from the fixing system and replaces them with a dielectric fixing device that has a sole with elastic support. This eliminates the metal roughness that degrades radio performance while maintaining connection reliability through the elastic support mechanism that ensures electrical continuity.
Solution Approach 2:
The patent changes the material parameter of the fixing device from conductive metal to dielectric material, which eliminates the harmful electromagnetic effects of metal roughness on radio performance while maintaining mechanical strength through the elastic support design.
2Strength
If a high number of screws or bolts are used to fix the radome to the reflector, then the mechanical strength of the connection is improved, but the device complexity and installation time increase
Solution Approach 1:
The patent merges multiple functions into a single fixing device: the dielectric sole provides both mechanical support and electrical continuity, while the integrated elastic support structure replaces multiple separate bolts and washers. This reduces device complexity from numerous metal fasteners to a unified fixing component.
Solution Approach 2:
The dielectric fixing device performs multiple functions simultaneously: it provides mechanical support, ensures electrical continuity, and maintains radio performance. This multi-functionality replaces what previously required multiple separate metal components, reducing overall system complexity.
3Strength
If a high number of screws or bolts are used to fix the radome to the reflector, then the mechanical strength is improved, but the installation and disassembly time increases
Solution Approach 1:
The patent segments the fixing system into a modular dielectric device with an integrated sole and elastic support structure that can be quickly installed as a single unit. This segmentation allows for rapid assembly and disassembly compared to installing multiple individual metal bolts, reducing installation time while maintaining fixing strength.
Data Source
Figure 1~2
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Figure 5
AI summary
The device has an upper brace that is applied to the surface of the radome, turned outward so as to cover the peripheral segment of the reflector and radome. A lower brace is placed against an outer surface of the reflector opposite the radome. A rigid spacer (8) is arranged between the reflector and the radome and is formed with hollow cylinder (10) which passes through the pad (9). A fastening unit is provided for fastening the radome onto the reflector and mating peg (11) with the radome. The dielectric portion is made of a polymer material.