Multi-Band Antenna Module With Orthogonal Polarization Isolation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional multi-band antenna modules experience interference and reduced separation due to antennas with the same polarization, leading to communication cutoffs and decreased transmission rates.
Innovation Solution
A multi-band antenna module design that combines patch and monopole antennas with different polarization characteristics, utilizing a complex structure with clearance areas and conductor patterns to minimize interference and maintain separation, enabling stable communication and increased transmission capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple antennas with the same polarization are used in a conventional multi-band antenna module, then the antenna can operate in different frequency bands, but interference occurs between antennas and separation is reduced
Solution Approach 1:
The patent applies different polarization characteristics to different antenna elements - specifically using vertical polarization for the patch antenna and horizontal polarization for the monopole antenna. This local differentiation of polarization quality enables multi-band operation while preventing interference between antennas, as antennas with orthogonal polarizations do not interfere with each other.
2Adaptability or versatility
If antennas with the same polarization are combined in a conventional multi-band antenna module, then frequency band coverage is expanded, but communication cutoff occurs due to reduced separation
Solution Approach 1:
The patent employs asymmetric polarization configuration where the patch antenna and monopole antenna use orthogonal polarizations (vertical and horizontal respectively). This asymmetry in polarization direction prevents the communication cutoff phenomenon that occurs in conventional symmetric (same polarization) configurations, while maintaining expanded frequency band coverage.
3Device complexity
If conventional multi-band antenna modules use same polarization antennas, then device complexity is reduced, but transmission rate decreases due to interference
Solution Approach 1:
The patent changes the polarization parameter of the antenna elements from identical (conventional) to orthogonal (vertical and horizontal). This parameter change enables MIMO and diversity antenna operations, significantly increasing data transmission rates while maintaining relatively simple device complexity through the use of standard antenna structures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design prevents interference between antennas, allowing for stable communication and increased data transmission capacity by constructing MIMO and diversity antennas, minimizing channel loss and signal interference.
Implementation Method 1
a patch antenna disposed on an upper surface of the circuit board and configured to transmit or receive a signal having a first frequency band
Implementation Method 2
A first conductor pattern that transmits or receives a signal having a second frequency band while feeding power to the patch antenna is formed in the circuit board
Data Source
AI summary
Presented is a multi-band antenna module in which antennas having different polarization characteristics are coupled to prevent deterioration in isolation caused by interference between the antennas. The presented multi-band antenna module comprises: a patch antenna for transmitting/receiving a signal of a first frequency band; and a circuit board which has the patch antenna mounted on the top surface thereof, and which has a conductor pattern for transmitting/receiving a signal of a second frequency band while feeding the patch antenna.