Complex Antenna Adjustable Beam Coverage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing antennas face challenges in balancing dimension and cost requirements while achieving high antenna gain value and beam coverage rate, and lacking adaptive beam alignment capabilities.
Innovation Solution
A complex antenna configuration with two identical antenna units connected by a hinge axis, allowing for adjustable included angles between them, enabling switching between single-beam and combined-beam modes to optimize gain and coverage, without a closed annular structure to save space and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a panel-type antenna is used, then the structure is simple and cost is low, but the beamwidth in horizontal plane is narrow and beam coverage rate is low
Solution Approach 1:
The patent combines multiple antenna units (at least two) into a single complex antenna system. Each antenna unit has its own reflective unit, and they are positioned at different locations within the radome to work cooperatively. This merging approach increases the beam coverage rate while maintaining relatively simple individual unit structures, thus balancing structure complexity and adaptability.
Solution Approach 2:
The patent transitions from a single-plane (2D) panel antenna to a three-dimensional spatial arrangement of multiple antenna units within a cylindrical radome. By distributing antenna units in different spatial positions and orientations, the system achieves broader horizontal beam coverage without significantly increasing the complexity of each individual unit.
2Adaptability or versatility
If an antenna motor is added to change direction, then adaptive beam alignment capability is achieved, but cost increases and installation conditions are limited
Solution Approach 1:
Instead of using a single motorized antenna that can rotate, the patent segments the antenna system into multiple fixed antenna units distributed around the cylindrical radome. Each unit is fixed in position, eliminating the need for motors and complex installation structures, while the collective arrangement provides omnidirectional coverage and adaptive beam alignment capabilities through spatial diversity.
Solution Approach 2:
The patent replaces the mechanical rotation system (antenna motor) with a fixed multi-unit spatial arrangement. The adaptive beam alignment function is achieved not through mechanical movement but through the geometric configuration and cooperative operation of multiple stationary antenna units, thereby reducing installation complexity and cost.
3Adaptability or versatility
If a closed annular structure is used, then beam coverage rate is high, but occupied space increases
Solution Approach 1:
The patent divides the closed annular structure into multiple separate antenna units distributed within the cylindrical radome. Instead of forming a complete continuous ring, the antenna units are positioned at discrete locations (at least two units), which maintains the beam coverage benefits of an annular configuration while reducing the occupied space and material requirements.
Solution Approach 2:
The patent implements a partial annular configuration with at least two antenna units rather than a complete closed ring. This partial implementation achieves sufficient beam coverage rate for practical applications while significantly reducing the space occupation compared to a full closed annular structure, representing an optimized compromise between performance and space efficiency.
Data Source
AI summary
A complex antenna configured to transmit or receive radio-frequency signals includes a first antenna unit and a second antenna unit. The first antenna unit is fixed to the second antenna unit with a first included angle, and the complex antenna does not have a closed annular structure.