Antenna Rotation Gear Structure for Smooth Tilt and Yaw Control
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Solution Overview
Problem
Existing antenna systems face challenges with complex structures and increased weight due to multiple gears and pivots, leading to non-smooth operations and potential stiffness issues in tilting and rotating mechanisms.
Innovation Solution
The antenna apparatus features a simplified rotation driving unit with internal and external gears, and a tilt driving unit with pipe-shaped joint bars and tilt members, reducing weight and ensuring smooth operations through bush combinations and manual/automatic tilt adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple worm gears and worm wheel gears are used to constitute the tilting driving unit and rotation driving unit, then the antenna can be tilted and rotated, but the structure becomes complicated and weight is increased
Solution Approach 1:
The patent combines multiple gear functions into a single integrated housing structure. The housing itself incorporates both tilting and rotation driving mechanisms, eliminating the need for separate gear assemblies. This merging of functions directly reduces structural complexity while maintaining full orientation adjustment capability.
Solution Approach 2:
The integrated housing serves multiple functions simultaneously: it provides structural support, contains both tilting and rotation driving units, and enables both tilting and rotation movements. This multi-functionality allows the system to achieve comprehensive antenna orientation control without requiring separate dedicated components for each function.
2Adaptability or versatility
If multiple worm gears and worm wheel gears are used to constitute the tilting driving unit and rotation driving unit, then the antenna can be tilted and rotated, but weight is increased
Solution Approach 1:
By merging the tilting and rotation driving units into a single integrated housing, the patent eliminates redundant structural components and reduces overall weight. The combined design allows shared use of materials and manufacturing processes, further reducing weight while maintaining full orientation adjustment functionality.
3Adaptability or versatility
If a mechanical downtilt assembly with multiple scissor arms and pivots is used, then the antenna can be tilted, but the tilt operation is not smooth due to weight
Solution Approach 1:
The patent extracts the essential tilting function from the complex scissor arm mechanism and implements it through a simplified single-axis rotation design. By removing unnecessary intermediate components like multiple scissor arms and pivots, the system achieves smooth tilting operation while maintaining full tilting capability.
Solution Approach 2:
Instead of using a complex scissor arm expansion mechanism to achieve tilting, the patent inverts the approach by using a simple single-axis rotation that directly provides the tilting motion. This inversion of the mechanical approach eliminates the operational issues associated with multiple moving parts while maintaining the desired tilting function.
4Productivity
If the number of antennas is increased to 10, then channel capacity is increased, but the compactness and small-sized design becomes more challenging
Solution Approach 1:
The patent employs a nested configuration where multiple antenna elements are arranged in a compact, space-efficient manner. The integrated housing contains all driving mechanisms within a confined volume, allowing multiple antennas to be mounted in a stacked or nested arrangement that minimizes overall system footprint while maintaining 10-antenna channel capacity.
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 achieves smooth rotation and tilt operations with reduced weight, noise, and enhanced stiffness, allowing for both manual and automatic control of antenna orientation.
Implementation Method 1
An external gear is formed in the rotation driving unit. The external gear is geared with the internal gear, and is moved along the inner circumference surface of the internal gear while rotated when the rotation driving unit is driven, thus rotating the rotation driving unit in the horizontal direction.
Implementation Method 2
ensuring smooth operations through bush combinations
Data Source
AI summary
Provided is an antenna device that can facilitate smooth operation of a rotation driving unit due a simplified structure and consequent reduction in weight. To this end, the antenna device according to the present invention comprises: an antenna unit; a support mounting unit that attaches to a support; and a rotation driving unit that attaches to the support mounting unit to allow rotating in the horizontal direction, and when rotated so, that rotates the antenna unit in the horizontal direction, wherein the support mounting unit is provided with an internal gear and the rotation driving unit is provided with an external gear, the external gear engaging with the internal gear when the rotation driving unit is in operation to rotate and move along the inner circumferential surface of the internal gear, thus rotating the rotation driving unit in the horizontal direction.