Multi-Signal Mobile Antenna Layout for Narrower Beam Width
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Solution Overview
Problem
Existing mobile communication antennas face challenges in achieving a comparable half power beam width while maintaining smaller dimensions, as radiators for different frequency ranges require varying sizes and configurations, leading to increased costs and installation space requirements.
Innovation Solution
A mobile communication antenna design featuring a reflector arrangement with dual-polarized radiator arrays, including multi-signal and dual-signal radiators, where feed sections are strategically positioned to reduce the half power beam width and increase antenna gain without adding new radiators, utilizing existing components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If radiators for lower frequency range are used, then communication coverage is improved, but antenna dimensions increase
Solution Approach 1:
The patent employs radiators that can operate across multiple frequency ranges (lower and higher frequencies) simultaneously. Each radiator is designed with dimensions and configurations that enable it to function effectively for both lower frequency communication coverage and higher frequency operations, eliminating the need for separate radiator sets for different frequency bands.
Solution Approach 2:
The patent combines multiple radiator types (first radiators for lower frequency, second radiators for higher frequency) into a single integrated antenna structure. The radiators are arranged in close proximity with shared reflector arrangements, merging what would traditionally be separate antenna systems into one compact unit that provides both communication coverage and maintains reduced dimensions.
2Power
If reflector arrangement is enlarged to reduce half power beam width, then antenna gain is improved, but antenna dimensions increase
Solution Approach 1:
The patent applies different reflector configuration strategies to different radiator groups. First reflector arrangements are specifically designed for first radiators while second reflector arrangements are designed for second radiators. This localized optimization allows each reflector-radiator pair to achieve optimal beam width and gain characteristics without requiring the entire antenna structure to be enlarged.
Solution Approach 2:
The reflector system is segmented into multiple independent reflector arrangements, each associated with specific radiators. This segmentation allows each reflector to be optimized independently for its designated radiators' frequency ranges and beam requirements, achieving high antenna gain through multiple focused beams rather than requiring one large monolithic reflector.
3Adaptability or versatility
If multiple radiator arrays are added to support more communication bands, then frequency coverage is improved, but device complexity increases
Solution Approach 1:
The patent designs radiators and reflector arrangements that serve multiple frequency bands simultaneously. Each radiator array is configured to handle both lower and higher frequency ranges, and the shared reflector structures support multiple radiator types, reducing the need for completely separate antenna systems for different communication bands.
Solution Approach 2:
The patent merges multiple radiator arrays and their associated reflector arrangements into a single integrated antenna structure. The first radiators with first reflector arrangements and second radiators with second reflector arrangements are combined in one antenna unit, sharing common structural elements, mounting mechanisms, and spatial configuration, thereby reducing overall system complexity despite supporting multiple frequency bands.
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 achieves reduced half power beam width and enhanced antenna gain by optimizing the placement and configuration of feed sections, maintaining compact dimensions and improving electrical properties.
Implementation Method 1
a first radiator array and a second radiator array which are arranged next to each other on the same side of the reflector arrangement and each comprise a plurality of dual-polarized radiators
Implementation Method 2
a reflector arrangement with dual-polarized radiator arrays
Data Source
Figure 1
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Figure 3
AI summary
A mobile communication antenna (1) comprises a reflector arrangement (3) and a first radiator array (5 a) with dual-polarized radiators (2) and a second radiator array (5b) with dual-polarized radiators (2). Each radiator (2) comprises four feed sections (7a, 7b, 7c, 7d). At least one radiator (2) is configured to transmit and receive four different mobile communication signals (S1, S2, S3, S4) via the first, second, third and fourth feed sections (7a, 7b, 7c, 7d), thereby forming a multi signal radiator (2b). The remaining radiators (2) of the first and second radiator array (5 a) are configured to transmit and receive two different mobile communication signals (S1, S2, S3, S4) of these four different mobile communication signals (S1, S2, S3, S4) via the first, second, third and fourth feed sections (7a, 7b, 7c, 7d), thereby forming a dual signal radiator (2a).