Stand-Type Portable Antenna with Single-Motor Elevation and Azimuth Control
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Solution Overview
Problem
Conventional satellite communication antennas require a full radome covering for waterproofing, which increases the overall volume and complicates storage and portability, and introduces costly circuit design complexities to prevent signal interference.
Innovation Solution
A stand-type portable antenna with a 1.5-axis structure using a single motor for adjusting elevation and azimuth, featuring a hinged operation bracket and a rotating body for independent elevation adjustment, and a protective cover that minimizes the size of the protective cover while providing a waterproof structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a full radome covering is used for waterproofing, then waterproof protection is improved, but the overall volume increases and portability is worsened
Solution Approach 1:
The radome is divided into a fixed radome and a movable radome that can be opened. The movable radome can be folded or rotated to an open position, allowing selective coverage. This segmentation enables the antenna to have full waterproof protection when closed while reducing volume when the movable portion is opened for portability or maintenance.
Solution Approach 2:
The radome structure incorporates movable elements that can dynamically change their position between closed (protective) and open (portable) states. This dynamic capability allows the system to adapt its volume and protection level based on operational requirements, resolving the contradiction between maintaining waterproof integrity and reducing overall size for portability.
2Reliability
If a full radome covering is used for waterproofing, then waterproof protection is improved, but circuit design complexity and production cost increase
Solution Approach 1:
By segmenting the radome into fixed and movable portions, the sealing requirements are localized to specific joints and moving parts rather than requiring complex waterproofing across the entire structure. This reduces the complexity of circuit design needed for comprehensive waterproofing while maintaining effective protection where required.
Solution Approach 2:
The movable radome portion can be extracted or opened from the main structure, allowing simplified sealing designs at the boundaries. This extraction approach eliminates the need for complex continuous sealing systems, reducing circuit design complexity while maintaining waterproof protection for the essential components.
3Manufacturing precision
If a hinged operation bracket with independent elevation adjustment is used, then backlash between axes is minimized, but device complexity increases
Solution Approach 1:
The elevation and azimuth adjustment mechanisms are merged into an integrated hinged bracket system where the operation bracket serves both functions. The hinge connection provides inherent mechanical advantage for reducing backlash while the combined structure eliminates the need for separate adjustment mechanisms, thereby minimizing backlash without proportionally increasing device complexity.
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 allows for a compact, waterproof, and cost-effective portable antenna design that minimizes backlash between axes, enhancing portability and reducing production costs by simplifying the circuit design and maintaining signal integrity.
Implementation Method 1
a single motor configured to be provided on the rotating plate and connected to rotate the rotating plate in a horizontal direction
Implementation Method 2
a fixed central shaft with a thread formed on an outer circumferential surface thereof configured to be coupled to the rotating body with a thread formed on an inner circumferential surface thereof
Implementation Method 3
a fixed pulley configured to be provided under the fixed central shaft and have the fixed central shaft received therein
Implementation Method 4
a drive belt configured to extend along the outer circumferential surface of the fixed pulley
Data Source
AI summary
Provided is a stand-type portable antenna that adjusts elevation and azimuth with a single motor. The stand-type portable antenna has a waterproof structure in a form with the antenna opened, minimizing the size of a protective cover further accommodating an elevation driving range of the antenna. The elevation drive structure is independent from vibrations incurred by the azimuth adjustment of the antenna, thereby forming a structure in which a backlash between axes of the antenna is minimized.