External Antenna System with Mode-Switching Circuit for Signal Reception
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Solution Overview
Problem
Wireless base stations experience signal instability at the edge of their range due to weaker transmission power from remote clients, leading to weak signal reception, necessitating an enhancement of signal receiving capability without violating communication regulations or using new materials.
Innovation Solution
An external antenna system with a first antenna element for receiving and a second antenna element for transmitting, coupled with a logic determination circuit and switching circuit, allows the system to selectively use the appropriate antenna based on the communication mode, enhancing signal reception and transmission capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wireless base station uses existing antenna components without modification, then the device complexity and cost remain low, but the signal receiving capability at the edge of signal range is insufficient
Solution Approach 1:
The antenna system is segmented into a first antenna element for receiving wireless signals and a second antenna element for transmitting wireless signals. This segmentation allows each antenna element to be optimized for its specific function, improving overall signal receiving capability while maintaining manageable system complexity through clear functional division.
Solution Approach 2:
The patent implements dynamic switching between the first and second antenna elements based on the communication mode (receiving or transmitting). The switching circuit dynamically connects the appropriate antenna element to the communication host according to real-time operational requirements, enabling the system to adapt to different communication states and improve receiving capability at signal range edges.
2Reliability
If the transmission power of remote clients is increased to improve signal reception, then the signal receiving capability improves, but communication regulations may be violated
Solution Approach 1:
The patent introduces an intermediary antenna system (the external antenna with switching circuit) between the communication host and the remote client signals. This intermediary actively manages signal reception by selecting the appropriate antenna element based on communication mode, thereby improving receiving capability without requiring the remote client to increase its transmission power, thus maintaining compliance with communication regulations.
3Reliability
If a single antenna is used for both transmission and reception, then the device complexity is low, but the signal reception quality deteriorates due to interference and limited capability
Solution Approach 1:
The antenna system is segmented into a first antenna element for receiving wireless signals and a second antenna element for transmitting wireless signals. This segmentation allows each antenna element to be optimized for its specific function, improving overall signal receiving capability while maintaining manageable system complexity through clear functional division.
Data Source
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Figure 2A~2B
Figure 3
AI summary
An external antenna adapted to a communication host and a wireless communication system are provided. The wireless communication system includes the external antenna and the communication host. The external antenna includes a first antenna element, a second antenna element, a logic determination circuit and a switching circuit. The first antenna element is configured to receive a wireless signal when the communication host operates in a reception mode. The second antenna element is configured to transmit the wireless signal when the communication host operates in a transmission mode. The logic determination circuit coupled to the communication host is configured to determine whether the communication host operates in the reception mode or the transmission mode so as to generate a determination result. The switching circuit, coupled to the logic determination circuit, is configured to selectively couple to the first antenna element or the second antenna element based on the determination result.