High-Frequency Switching Extender Antenna Design
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Solution Overview
Problem
Conventional dual-band integrated circuits for wireless communication systems require two independent antennas, leading to high costs and signal interference, and use active switches that consume additional power.
Innovation Solution
A high-frequency switching extender using a high-frequency switching module with single-pole double-throw (SPDT) switches, controlled by a high-frequency transceiver module, allowing switching between preset frequency bands, and a quad-frequency switching extender that includes an intermediate-to-low frequency switching extender to cover 2.4 GHz to 6 GHz frequency bands, reducing interference and increasing transmission rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two independent antennas are used to realize switching between dual bands, then frequency band switching capability is improved, but device cost increases and signal interference occurs
Solution Approach 1:
The patent merges the functions of two independent antennas into a single antenna system. The single antenna is equipped with a switching module that can switch between different frequency bands (2.4GHz and 5GHz), eliminating the need for two separate antennas while maintaining dual-band capability and reducing device complexity and cost.
Solution Approach 2:
The single antenna is designed to serve multiple frequency bands (both 2.4GHz and 5GHz) through the integration of a switching module. This multi-functional antenna can operate across different frequency ranges, replacing the need for dedicated antennas for each band and reducing overall system complexity.
2Adaptability or versatility
If two independent antennas are used to realize switching between dual bands, then frequency band switching capability is improved, but signal interference increases
Solution Approach 1:
The patent extracts the frequency selection function from the antenna structure itself and places it in a separate switching module. This separation allows the single antenna to handle multiple frequency bands without the radiation patterns of multiple antennas interfering with each other, as the switching occurs at the signal level rather than through simultaneous radiation from multiple antennas.
3Ease of operation
If active switches are used to control signals, then signal routing capability is improved, but power consumption increases
Solution Approach 1:
The patent employs passive switching components (such as diode-based switches or mechanical relays) instead of active electronic switches. These passive components achieve signal routing without requiring external power, significantly reducing power consumption while maintaining the necessary signal switching capability for frequency band changes.
Data Source
AI summary
A high-frequency switching extender is provided, used to receive signals from external routers and devices and transmit transmission signals to external routers and devices. The high-frequency switching extender includes a high-frequency transceiver module, a high-frequency switching module, a high-frequency RF front-end module, a high-frequency filter module, a high-frequency antenna switching unit, and a high-frequency antenna. Wherein, the high-frequency switching extender has a transmission mode and a receiving mode. In transmission mode, the high-frequency switching module switches the transmission signal to the preset frequency band according to the control voltage, and the transmission signal switched to the preset frequency band is transmitted to the high-frequency antenna for transmission. In receiving mode, the high-frequency antenna switching unit switches the received signal to the preset frequency band according to the control voltage, and the received signal switched to the preset frequency band is transmitted to the high-frequency transceiver module.