Spacecraft Amplifier Layout for Heat Dissipation and Space Use
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Solution Overview
Problem
In spacecraft, particularly small SAR satellites, there is a challenge in efficiently disposing high output power amplifiers that generate significant heat, requiring effective heat dissipation while also optimizing the limited accommodation space for electronic components.
Innovation Solution
The amplifier is disposed on the exterior portion of the spacecraft's main body, exposed to space, to isolate it from other electronic devices and enhance heat dissipation, minimizing heat impact on surrounding components and optimizing space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the amplifier is disposed inside the main body to save space, then the accommodation space utilization is improved, but the heat dissipation capability deteriorates
Solution Approach 1:
The amplifier is extracted from the internal accommodation space and disposed on the exterior surface of the main body. This separation removes the heat-generating component from the confined internal environment, allowing it to dissipate heat directly to the external space while the internal accommodation space can be fully utilized for other electronic devices without heat interference.
2Temperature
If the amplifier is disposed on the exterior portion to improve heat dissipation, then the heat dissipation capability is improved, but the device complexity increases
Solution Approach 1:
The exterior surface of the main body serves multiple functions: it acts as the structural outer shell of the spacecraft and simultaneously provides a mounting platform for the amplifier. This multi-functional use of the exterior surface eliminates the need for separate internal mounting structures, reducing overall device complexity despite the external placement of the amplifier.
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 configuration effectively reduces the adverse effects of heat on other electronic devices and allows for efficient heat dissipation, ensuring the amplifier's operation without damaging surrounding components, while maximizing the use of limited space in small SAR satellites.
Implementation Method 1
an amplifier that is disposed on an exterior portion of the main body to be exposed to space and configured to amplify electric power of the radio wave output by the oscillator
Implementation Method 2
The amplifier is disposed on the exterior portion of the spacecraft's main body, exposed to space, to isolate it from other electronic devices and enhance heat dissipation
Data Source
AI summary
[Problem] To provide a spacecraft having a more effective arrangement of amplifiers. [Solution] Provided is a spacecraft comprising: a main body having a housing space for housing an electronic device within; an oscillator configured to output a radio wave including a frequency in a predetermined frequency band; an amplifier disposed on an exterior of the main body so as to be exposed to space and configured to amplify the power of the radio wave output by the oscillator; and an antenna, disposed on the exterior of the main body, for emitting the radio wave to the outside at the power amplified by the amplifier.