Modular Wireless Microphone Antenna Diversity System
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Solution Overview
Problem
Existing wireless audio transmission systems with antenna diversity face challenges in providing adequate reception coverage, especially in large environments, due to the limitations of fixed antenna configurations and reduced reception range when antennas are jointly connected, leading to insufficient coverage in certain areas.
Innovation Solution
A modular wireless microphone or in-ear monitoring system with multiple antenna modules and a combining unit that allows for diversity processing, enabling selection of antennas based on signal quality and allowing additional antennas to be added for enhanced range and flexibility, with the option for bidirectional operation and modular audio processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two antennas are jointly connected to a common path for diversity processing, then signal reception quality is improved, but the reception range is reduced due to antenna array effects
Solution Approach 1:
The system divides the antenna connection into separate modular paths. Each antenna module can be independently connected to the combiner unit through separate input terminals, avoiding the formation of a fixed antenna array while still enabling diversity processing when multiple antennas are used together.
Solution Approach 2:
The system enables dynamic configuration of antenna connections. Users can selectively connect one or multiple antenna modules to the combiner unit based on the operational environment, allowing the system to adapt between single-antenna and multi-antenna modes to optimize both reception quality and range.
2Device complexity
If a fixed antenna configuration is used for wireless audio transmission, then system simplicity is maintained, but reception coverage is insufficient in large environments
Solution Approach 1:
The antenna system is segmented into multiple independent antenna modules that can be individually connected to the combiner unit. This modular architecture allows the system to scale from simple single-antenna configurations to complex multi-antenna setups without requiring a complete system redesign.
Solution Approach 2:
The combiner unit is designed with universal input terminals that can accept various antenna module configurations. The same combiner unit can handle single-antenna, dual-antenna, or multi-antenna setups, providing multi-functionality while maintaining a consistent system architecture.
3Area of stationary object
If multiple antenna modules are added to enhance reception range, then reception coverage is improved, but system complexity increases
Solution Approach 1:
Each antenna module is designed as a self-contained unit with independent high-frequency processing capabilities. This segmentation allows multiple modules to be added to the system without creating complex inter-module dependencies, as each module operates independently before signals are combined at the combiner unit.
Solution Approach 2:
The combiner unit merges multiple antenna signals through a centralized architecture with dedicated input terminals for each antenna module. This combining approach simplifies the overall system structure by providing a single point of convergence for all antenna inputs, avoiding the need for complex distributed signal processing across multiple modules.
Data Source
AI summary
A wireless microphone or wireless in-ear monitoring system. The system has at least one transmitting and/or receiving unit, which comprises at least two antenna modules, each of the antenna modules having an output plug unit, as well as a combining unit with an input interface. Output signals of the at least two antenna modules are received via the input interface of the combining unit. This is done for those input plug units that are inserted into the input interface of the combining unit. This is carried out in order to execute diversity processing of the signals of the antenna modules.