Combiner Isolation Bandwidth Calculation for Frequency Resource Optimization
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Solution Overview
Problem
In communication systems, the wide isolation bandwidth required for combining adjacent channels leads to significant waste of frequency resources, as it occupies a minimum of 5 MHz frequency resources, impacting the efficiency and utilization of communication systems.
Innovation Solution
A method and device that determine the insertion loss and isolation between ports of a combiner, calculate the total isolation bandwidth, and utilize guard bandwidths to reduce the actual isolation bandwidth, allowing for more efficient frequency resource utilization by incorporating guard bandwidths into the total isolation bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wide isolation bandwidth of at least 5 MHz is reserved between combined communication systems, then the isolation between ports of the combiner meets the requirements of related protocols, but frequency resources are wasted significantly
Solution Approach 1:
The patent changes the parameter of isolation bandwidth from a fixed minimum value (5 MHz) to a dynamically calculated value based on actual system requirements. By calculating the total isolation bandwidth according to insertion loss and isolation between ports, and then determining guard bandwidths for each combined system, the actual isolation bandwidth can be optimized to meet protocol requirements while minimizing frequency resource waste.
2Reliability
If the insertion loss and isolation between ports of the combiner accord with the requirements, then the performance of the combiner is ensured, but a certain isolation bandwidth is required which occupies frequency resources
Solution Approach 1:
The patent applies partial action by calculating the minimum necessary isolation bandwidth based on actual insertion loss and isolation measurements, rather than reserving the full 5 MHz bandwidth. By determining guard bandwidths for each combined system and calculating the actual isolation bandwidth needed, the solution uses only the necessary portion of frequency resources while still ensuring combiner performance meets requirements.
Data Source
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AI summary
Disclosed are a method and device for combining minimum isolation bandwidths, which relate to the technical field of communications and can solve the problem that frequency resources of communication systems are wasted by a wider isolation bandwidth when two adjacent communication systems are combined. The method of the present invention comprises the steps of: determining an insertion loss and an isolation between ports of a combiner; calculating a total isolation bandwidth of an isolation band in the combiner according to the insertion loss and the isolation between ports; determining guard bandwidths adjacent to the isolation band in combined systems, the combined systems being at least two communication systems combined by the combiner; and, calculating an actual isolation bandwidth of the combiner according to the guard bandwidths of the combined systems and the total isolation bandwidth. The present invention is applicable to calculation devices.