RF Antenna Module Isolation Walls for Dense Element Decoupling
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Solution Overview
Problem
Existing antenna apparatuses face challenges with radio wave interference and passive intermodulation distortion (PIMD) due to densely installed antenna elements, leading to signal leakage and decreased efficiency, while maintaining compactness and avoiding size increase is crucial.
Innovation Solution
A radio frequency (RF) module with elongated filter units, radiating elements, and radio wave interference isolation walls minimizes interference and PIMD by decoupling antenna elements, using concave-convex shaped walls and decoupling patterns on a radome panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If antenna elements are densely installed to achieve compactness, then the antenna apparatus size is reduced, but radio wave interference and passive intermodulation distortion increase
Solution Approach 1:
The antenna apparatus is divided into multiple RF modules, each containing a subset of antenna elements. This segmentation allows dense installation of elements within each module while maintaining isolation between modules through isolation walls, thus achieving compactness without excessive interference
Solution Approach 2:
Radio wave interference isolation walls are introduced as intermediary structures between adjacent RF modules. These walls act as mediators that block and isolate radio wave interference between densely packed modules, preventing passive intermodulation distortion while allowing the modules to remain compact
2Volume of moving object
If antenna elements are placed under spatial constraints to reduce size, then compactness is achieved, but coupling between elements increases causing signal leakage
Solution Approach 1:
By segmenting the antenna elements into separate RF modules with isolation walls, the coupling between elements is reduced. Each element operates within its own isolated space, preventing signal leakage to adjacent elements while maintaining compact overall structure
Solution Approach 2:
The isolation walls are strategically positioned at specific locations where coupling occurs most strongly. This local quality approach applies isolation measures precisely where needed rather than uniformly throughout the structure, effectively reducing coupling while minimizing space consumption
Data Source
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AI summary
Disclosed herein is a radio frequency (RF) module for antennas and an antenna apparatus including the RF module. The RF module includes a plurality of RF filter units each including a filter body formed to be elongated in a vertical direction, a plurality of radiating element units having a length greater than a length of the plurality of RF filter units, and detachably secured and electrically connected to respective front ends of the plurality of RF filter units, and radio wave interference isolation walls respectively coupled to opposite ends of each of the plurality of radiating element units in a width direction, and disposed in a partitioned manner to minimize radio wave interference with adjacent radiating element units. This configuration may enable simple installation and replacement, and may improve overall communication efficiency of the antenna apparatus.