Duplex Portable Radio Antenna Segmentation
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Solution Overview
Problem
Current portable radios used in public safety environments cannot listen to monitored channels while in transmission mode, limiting interoperability and causing incident commanders to potentially miss critical information.
Innovation Solution
A portable radio communication system with a host radio and an accessory antenna that allows duplex communication by routing transmit signals to the accessory antenna while the host radio receives signals on multiple channels, enabling simultaneous monitoring and transmission without the need for a physical duplexer filter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the radio operates in transmission mode, then communication transmission is enabled, but the ability to listen to monitored channels is lost
Solution Approach 1:
The patent segments the antenna system into a host radio antenna and an accessory antenna. The host antenna is dedicated to receiving signals on multiple channels, while the accessory antenna handles transmission. This physical segmentation allows the radio to transmit and receive simultaneously without one function blocking the other, resolving the contradiction between transmission capability and ability to listen to monitored channels.
2Device complexity
If the radio monitors communications on one channel at a time, then channel monitoring is simplified, but interoperability and ability to listen to multiple channels is limited
Solution Approach 1:
The host radio antenna is designed to universally receive signals on multiple channels simultaneously. The accessory antenna system provides multi-functionality by handling both transmission and reception tasks. This allows the radio to maintain simplified operation while gaining the versatility to monitor multiple channels and improve interoperability in public safety environments.
3Ease of operation
If a physical duplexer filter is used to enable duplex communication, then simultaneous transmission and reception is achieved, but device complexity and cost increase
Solution Approach 1:
The patent introduces an accessory antenna as an intermediary element that mediates between the transmission and reception functions. Instead of using a complex physical duplexer filter to separate transmit and receive signals, the accessory antenna serves as a dedicated transmission path that allows the host antenna to focus on receiving multiple channels. This intermediary approach enables duplex communication while avoiding the complexity of traditional duplexer filters.
Data Source
AI summary
A portable radio communication system for enabling duplex communication on portable radios is provided. The portable radio communication system comprises a host radio having a host radio antenna and an accessory having an accessory antenna. The host radio antenna is operated to receive signals simultaneously on at least two channels during a dual watch mode of operation or receive signals on a single channel during a single watch mode of operation. The portable radio communication system further comprises at least one switch coupled to the host radio antenna and the accessory antenna. The switch enables duplex communication during the dual watch mode of operation or single watch mode of operation by routing transmit signals from the host radio to the accessory antenna for transmission while the host radio antenna receives signals during the dual watch mode of operation or single watch mode of operation.