Integrated Antenna Feed Structure for Low Passive Intermodulation
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Solution Overview
Problem
The passive intermodulation performance of signal transceiver apparatuses is poor due to large assembly tolerances, affecting the combination of radio frequency signals and increasing assembly difficulty.
Innovation Solution
The signal transceiver apparatus employs an integrated structure with a connecting component that transmits signals across multiple filter circuits, using an integrated structure and detachable PCBs to reduce assembly tolerance and improve passive intermodulation performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional feed structure with separate connection paths for different polarizations is used, then signal transmission is achieved, but the device complexity increases and manufacturing precision requirements are heightened
Solution Approach 1:
The patent combines the connection paths for different polarizations into a single integrated feed structure. The feed includes a first connection path and a second connection path that are merged into one physical structure, reducing the number of separate components while maintaining the ability to transmit signals with different polarizations independently. This merging reduces device complexity and manufacturing precision requirements while preserving signal transmission quality.
Solution Approach 2:
The feed structure is designed to perform multiple functions within a single component. It simultaneously supports transmission of signals with different polarizations (first polarization and second polarization) through the same physical structure, eliminating the need for separate dedicated connection paths for each polarization. This multi-functionality reduces overall device complexity while maintaining reliable signal transmission.
2Reliability
If separate connection paths for different polarizations are implemented, then signal transmission is maintained, but the number of components increases
Solution Approach 1:
The patent merges multiple connection paths into a single integrated feed structure. Instead of having separate physical components for each polarization path, the invention creates one feed that contains both the first connection path and the second connection path as integrated parts. This reduces the quantity of components while maintaining the ability to transmit signals with different polarizations reliably.
3Reliability
If complex feed structures with separate paths are used, then polarization-specific signal transmission is achieved, but manufacturing precision requirements increase
Solution Approach 1:
By merging the connection paths into a single integrated feed structure, the patent reduces the number of separate components that need to be precisely aligned during manufacturing. The integrated design inherently maintains the relative positions and orientations of the connection paths, reducing manufacturing precision requirements while still achieving reliable polarization-specific signal transmission.
4Reliability
If multiple separate connection paths are used, then signal transmission coverage is improved, but the antenna aperture requirement increases
Solution Approach 1:
The feed structure is designed to provide comprehensive signal transmission coverage for different polarizations through a single multi-functional component. This eliminates the need for multiple separate antennas or larger aperture structures, as the integrated feed handles all polarization requirements within the existing antenna aperture, maintaining coverage without increasing the stationary object area.
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 integrated structure reduces assembly tolerance and improves passive intermodulation performance, simplifying assembly and maintenance while maintaining signal integrity.
Implementation Method 1
a first antenna (110) and a second antenna (120)
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Embodiments of this application disclose a signal transceiver apparatus, a feeding structure, and an antenna. The signal transceiver apparatus includes: a first cavity, where a first interface is disposed on the first cavity; a first filter circuit, disposed in the first cavity, where a first end of the first filter circuit is connected to the first interface; a second cavity, where a second interface and a third interface are disposed on the second cavity; a second filter circuit, disposed in the second cavity, where a first end of the second filter circuit is connected to the second interface; and a connecting component, where the connecting component includes a first end and a second end opposite to each other and a third end, the first end of the connecting component is connected to a second end of the first filter circuit, the third end of the connecting component is connected to a second end of the second filter circuit, and the second end of the connecting component is connected to the third interface; and the connecting component is configured to transmit signals of a first frequency band and a second frequency band. The connecting component uses an integrated structure. This reduces an assembly tolerance and improves passive intermodulation performance of the signal transceiver apparatus.