Antenna Temperature Control for Stable Phase Shifter Performance
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Solution Overview
Problem
In some antennas, the dielectric constant of the dielectric layer in the phase shifter changes significantly with temperature, leading to reduced phase shift angle range, increased insertion loss, and performance deterioration such as lifted side lobes, lowered main lobes, and disturbed beam pointing.
Innovation Solution
An antenna design that includes a temperature control unit in direct contact with the amplifying circuit to stabilize the operating temperature within a certain range, thereby suppressing temperature drifts and preventing performance degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the antenna operates without temperature control, then the structure remains simple, but the dielectric constant changes significantly with temperature causing performance deterioration
Solution Approach 1:
A temperature control unit is introduced as an intermediary component between the antenna's amplifying circuit and the thermal environment. This unit directly contacts the amplifying circuit to regulate its temperature, thereby stabilizing the dielectric constant of the phase shifter and preventing performance deterioration without requiring complex system-wide temperature control
Solution Approach 2:
The patent controls the temperature parameter of the amplifying circuit to maintain it within a specific range (e.g., 25°C ±5°C). By actively adjusting this physical parameter, the dielectric constant of the phase shifter remains stable, preventing issues like side lobe lifting and beam pointing disturbances that would otherwise occur with temperature variations
2Manufacturing precision
If the temperature control unit is in direct contact with the amplifying circuit, then temperature stabilization is improved, but the manufacturing complexity increases
Solution Approach 1:
The temperature control system is designed as a separate, modular unit that can be independently manufactured and then integrated with the amplifying circuit. This segmentation allows for specialized temperature control component fabrication while keeping the overall manufacturing process manageable through standardized assembly interfaces
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 temperature control unit effectively stabilizes the operating temperature of the antenna, preventing performance degradation and ensuring consistent antenna performance across varying temperature conditions.
Implementation Method 1
the temperature control unit is in direct contact with the amplifying circuit
Data Source
AI summary
The present disclosure provides an antenna and a temperature control system of the antenna. The antenna includes a feed unit layer, a phase shifter layer, an amplifying circuit disposed between the feed unit layer and the phase shifter layer, and a temperature control unit disposed on a side of the amplifying circuit. The amplifying circuit is configured to amplify a microwave signal fed from the feed unit layer and transmit the microwave signal to the phase shifter layer; the phase shifter layer is configured to shift a phase of the microwave signal by a preset phase shift amount; and the temperature control unit is configured to adjust a temperature of the amplifying circuit to adjust an operating temperature of the antenna. The temperature control unit is in direct contact with the amplifying circuit.