Tiered Antenna Mounts for Co-Channel Interference Isolation
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Solution Overview
Problem
Multi-radio devices face co-channel interference issues due to the limited physical separation of RF radios operating in the same frequency band, which is constrained by the small form factor of wireless access points.
Innovation Solution
The implementation of a tiered or inclined antennae arrangement with reflector portions and mounts that satisfy near-field interference isolation criteria, allowing for increased spatial diversity between antennae without expanding the device's size or form factor, thereby reducing co-channel interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If RF radios are placed far apart to reduce co-channel interference, then spatial diversity increases and interference decreases, but the device size and form factor increase
Solution Approach 1:
The patent transitions from planar antenna arrangement to a three-dimensional tiered configuration with vertical separation. The reflector portions are positioned at different heights and angles, creating spatial diversity in multiple dimensions (x, y, z) rather than just lateral separation, thereby reducing interference while maintaining compact footprint.
Solution Approach 2:
The patent employs asymmetric positioning of reflector portions with different orientations and angles relative to the antenna mounts. The first and second reflector portions are arranged at non-symmetric positions and angles, optimizing the radiation patterns and interference isolation without requiring symmetric lateral separation.
2Adaptability or versatility
If multiple RF radios operate in the same frequency band, then network coverage and protocol support improve, but co-channel interference increases
Solution Approach 1:
By introducing vertical dimension through tiered reflector arrangements, the patent enables multiple radios to operate in overlapping frequency bands while maintaining spatial isolation. The three-dimensional configuration allows frequency-diverse and protocol-diverse operations without mutual interference.
Solution Approach 2:
The reflector portions act as intermediary elements that shape and direct the radiation patterns of each antenna. By carefully positioning these reflectors, the patent mediates the interaction between co-channel radios, directing their energy in different spatial directions and reducing mutual interference.
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
This arrangement effectively increases the effective spatial distance between antennae, reducing co-channel interference while maintaining the compact size of wireless access points, enhancing network performance without increasing the physical distance between antennae or the device's size.
Implementation Method 1
a first reflector portion having a first mount for a first antenna and a second reflector portion having a second mount for a second antenna
Data Source
AI summary
In one implementation, an apparatus includes: a first reflector portion having a first mount for a first antenna that is configured to operate in a first frequency range, where the first mount characterizes an emission point of a main lobe of the first antenna; and a second reflector portion having a second mount for a second antenna that is configured to operate in a second frequency range that overlaps the first frequency range, where the second mount characterizes an emission point of a main lobe of the second antenna. The second reflector portion is arranged relative to the first reflector portion in order to satisfy a near-field interference isolation criterion between the first and second antennae. In some implementations, the distance between the antenna mounts is less than a distance between the antenna mounts arranged in a plane due to increased spatial diversity between the first and second antennae.