Broadband Antenna Frequency Splitting for Multi-Band Interference Control
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Solution Overview
Problem
Conventional antenna structures require multiple antennas to achieve multiple functions, leading to significant space occupation and signal interference.
Innovation Solution
A multifunctional antenna structure incorporating a broadband antenna, first and second frequency dividers, a wireless network module, and a long term evolution module, with frequency dividers outputting signals with specific frequency range differences to avoid interference and reduce space occupation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple antennas are used to achieve multiple functions, then the antenna structure can provide diverse communication capabilities, but the space occupation increases and signal interference occurs
Solution Approach 1:
The patent implements a single antenna structure that can operate across multiple frequency bands (including 700MHz, 900MHz, 1800MHz, 2100MHz, and 2600MHz bands) by integrating frequency dividing circuits. This allows one antenna to perform the functions that would traditionally require multiple separate antennas, thereby reducing space occupation while maintaining adaptability for diverse communication capabilities
Solution Approach 2:
The patent divides the broad frequency spectrum received by the single antenna into multiple narrower frequency bands using frequency dividing circuits. The first frequency dividing circuit splits the signal into first and second frequency division signals, and the second frequency dividing circuit further divides these into multiple second frequency division signals. This segmentation enables a single antenna to handle multiple frequency bands that would traditionally require multiple antennas
2Area of stationary object
If multiple antennas are closely arranged to reduce space, then space occupation decreases, but signal interference between antennas increases
Solution Approach 1:
The patent segments the received antenna signal into multiple distinct frequency bands using frequency dividing circuits. By dividing the broad frequency spectrum into separate frequency ranges (first frequency division signals and second frequency division signals), the system prevents signal interference that would occur with closely arranged antennas, as each frequency band is processed separately
Solution Approach 2:
The frequency dividing circuits act as intermediary components between the single antenna and the multiple communication modules. These circuits mediate the signal processing by separating different frequency bands, thereby preventing direct signal interference between different communication functions while allowing a single antenna to serve multiple purposes
Data Source
AI summary
A multifunctional antenna structure includes a substrate, a broadband antenna, a first frequency divider, a second frequency divider, a wireless network module, and a long term evolution module. The first frequency divider can receive an antenna signal from the broadband antenna and output a first primary frequency division signal and a second primary frequency division signal that have different frequency ranges. The second frequency divider can receive the first primary frequency division signal and output secondary frequency division signals that have different frequency ranges. A minimum difference between any two of the secondary frequency division signals that have frequency ranges near each other is greater than or equal to 2 MHz. The wireless network module can send and receive the second primary frequency division signal. The long term evolution module can send and receive the secondary frequency division signals.