Waveguide Adapter Tuning for Multi-Band Microwave Transceivers
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Solution Overview
Problem
Existing microwave radio transceivers are limited by the bandwidth constraints of waveguides, requiring separate components for different frequency bands, increasing production complexity and logistics costs.
Innovation Solution
An adaptable microwave radio transceiver system with interchangeable waveguide adapters that allow a single transceiver to handle multiple frequency bands by varying the protrusion distance of probes through adjustable thicknesses of bottom walls, enabling universal spare parts and simplified logistics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different waveguide transitions are used for different frequency bands, then each frequency band can be handled optimally, but the device complexity and production complexity increase
Solution Approach 1:
The waveguide transition is designed with a universal structure that can handle multiple frequency bands through adjustable probe positions. The probe can be positioned at different distances from the waveguide broad wall by adjusting the distance between the probe support rod and the waveguide broad wall, allowing a single transition structure to serve multiple frequency bands (e.g., C-band, X-band, Ku-band) without requiring separate optimized transitions for each band.
Solution Approach 2:
The waveguide transition incorporates adjustable parameters, specifically the probe position relative to the waveguide broad wall. This adjustable distance allows the transition to be dynamically adapted to different frequency bands. The probe support rod can be positioned at different distances from the waveguide broad wall to optimize performance for different operating frequencies, making the transition adaptable rather than fixed for a single band.
2Adaptability or versatility
If separate microwave radio transceivers are made for different frequency bands, then each transceiver is optimized for its band, but logistics costs and spare parts inventory increase
Solution Approach 1:
The microwave radio transceiver is designed with a universal waveguide transition that can operate across multiple frequency bands. By making the probe position adjustable rather than fixed, a single transceiver model can be deployed for different frequency bands, eliminating the need to manufacture and stock separate transceiver models for C-band, X-band, Ku-band, and other frequencies. This reduces logistics costs and simplifies spare parts inventory management.
3Adaptability or versatility
If the waveguide bandwidth is increased to match component bandwidth, then the usable bandwidth of the transceiver is limited by waveguide constraints, but the complexity of handling different frequency bands increases
Solution Approach 1:
The waveguide transition uses adjustable probe positioning to adapt to different frequency bands. The distance between the probe support rod and the waveguide broad wall can be modified to optimize the transition for different operating frequencies. This dynamic adjustment capability allows the transition to maintain good performance across multiple bands without requiring the waveguide itself to have extremely wide bandwidth, thereby reducing test station and measurement complexity.
Data Source
AI summary
An adaptable microwave radio transceiver system having a microwave radio transceiver and at least two waveguide adapters, where the microwave radio transceiver is adapted for at least two waveguide frequency bands and includes at least one radio port that includes a corresponding probe of a fixed length and extends via an inner insulating part in a bottom in the corresponding radio port. Each waveguide adapter has a first end facing the corresponding bottom where each first end includes a bottom wall with an outer insulating part through which the corresponding probe is adapted to protrude a protrusion distance. The protrusion distance is dependent on a thickness of the bottom wall, where at least two waveguide adapters have different thickness of the corresponding bottom wall, where any one of the waveguide adapters is exchangeably mountable to the radio port.