Phased Array Antenna Structure With Phase Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional antenna structures require expensive phase shifters to generate different patterns, limiting their improvement and efficiency.
Innovation Solution
A phased array antenna structure incorporating a carrier, radiative layer, circuit layer, and phase switching units, which allows for the generation of multiple antenna patterns without the need for a phase shifter by selectively connecting phased antennas, reducing costs by eliminating the need for expensive phase shifters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional antenna structure uses phase shifter to generate different patterns, then pattern requirements are satisfied, but cost increases significantly
Solution Approach 1:
The antenna structure is divided into N independent phased antenna units, each capable of independent phase control. This segmentation allows the system to generate different patterns by controlling individual units rather than requiring a complex centralized phase shifter, thereby reducing cost while maintaining pattern generation capability.
Solution Approach 2:
The patent uses phase switching units that can dynamically switch between different phase states (0, 45, 90, 135, 180, 225, 270, 315 degrees) to generate different antenna patterns. This dynamic phase switching capability replaces the need for expensive mechanical or electronic phase shifters, achieving cost reduction while maintaining adaptability.
2Adaptability or versatility
If conventional antenna structure uses phase shifter to satisfy pattern requirements, then pattern control is achieved, but device complexity increases
Solution Approach 1:
The antenna system is segmented into N independent phased antenna units with simple phase switching capability each, replacing a single complex phase shifter. This distribution of functionality simplifies the overall device structure while maintaining pattern control capability through coordinated operation of simple units.
Solution Approach 2:
The patent uses multiple identical phased antenna units with the same simple structure, each capable of the same phase switching operations. This copying approach allows complex pattern generation through coordination of simple, identical units, reducing individual unit complexity while achieving overall system capability.
Data Source
AI summary
A phased array antenna structure includes a carrier, a radiative layer and a circuit layer both disposed on the carrier, and a phase switch. The radiative layer includes two radiating portions. The circuit layer includes a phased antenna and a transmission circuit. The phased antenna including two end portions respectively connected to the two radiating portions. The transmission circuit includes a feeding end and an externally connecting end that is arranged adjacent to the phased antenna. The phase switch is connected to the externally connecting end of the transmission circuit, and the phase switch is configured to selectively connect only one of the two end portions of the phased antenna.