Active Phased Array Architecture for Multi-Beam Polarization Control
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Solution Overview
Problem
Existing phased array antennas are limited by the need for expensive and complex distributed components, such as phase shifters and hybrids, which increase cost, size, and frequency limitations, while also being unable to efficiently switch between polarizations and form multiple beams.
Innovation Solution
An active phased array architecture that replaces traditional distributed components with active vector generators, power splitters, power combiners, and RF hybrids, allowing for a monolithic solution with independent polarization control and multi-beam formation across multiple frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional distributed components (phase shifters, hybrids) are used in phased array antennas, then beam steering and polarization control can be achieved, but the cost, size, and frequency limitations increase
Solution Approach 1:
The patent combines multiple distributed components (phase shifters, hybrids, power splitters) into a single monolithic integrated circuit. This merging eliminates the need for separate distributed components while maintaining beam steering and polarization control capabilities, directly resolving the contradiction between adaptability and device complexity
Solution Approach 2:
The monolithic integrated circuit performs multiple functions simultaneously: beam steering, polarization control, power splitting, and signal combining. This multi-functionality replaces the need for separate specialized components, reducing overall system complexity while maintaining full adaptability
2Productivity
If distributed components are used in phased array antennas, then beam formation is possible, but the antenna size and manufacturing complexity increase
Solution Approach 1:
The patent integrates power splitters, phase shifters, and power combiners into a single monolithic IC structure. This consolidation dramatically simplifies manufacturing by eliminating the need to assemble multiple separate components, while maintaining the ability to form multiple beams simultaneously
3Adaptability or versatility
If traditional phased array architecture is used, then polarization control is possible, but the cost and frequency limitations increase
Solution Approach 1:
The patent integrates polarization control functionality directly into the monolithic IC by combining hybrid circuits and phase shifters in a single integrated structure. This eliminates the need for separate polarization control components while maintaining full polarization adaptability
Solution Approach 2:
The monolithic integrated circuit simultaneously handles beam steering, polarization control, and signal processing functions. This universal design eliminates the need for separate polarization control hardware, reducing complexity and cost while maintaining full polarization adaptability
Data Source
AI summary
In an exemplary embodiment, a phased array antenna comprises multiple subcircuits in communication with multiple radiating elements. The radio frequency signals are independently adjusted for both polarization control and beam steering. In a receive embodiment, multiple RF signals of various polarizations are received and combined into at least one receive beam output. In a transmit embodiment, at least one transmit beam input is divided and transmitted through multiple radiating elements, with the transmitted beams having various polarizations. In an exemplary embodiment, the phased array antenna provides multi-beam formation over multiple operating frequency bands. The wideband nature of the active components allows for operation over multiple frequency bands simultaneously.