2D Oscillator Array Beam Steering via Phase Detection
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Solution Overview
Problem
High frequency beam forming systems face challenges in implementing phase arrays due to increasing power loss and decreasing accuracy of phase shifters as transmission frequency increases, making it difficult to achieve precise beam steering and formation without complex measurement setups.
Innovation Solution
A high frequency beam forming device using a 2D radiation array structure with oscillators and phase difference detectors that detect and adjust phase differences in real time, eliminating the need for phase shifters by applying control voltages to steer beams at desired angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If phase shifters are used in high frequency beam forming systems, then beam steering capability is achieved, but power loss increases and accuracy decreases as transmission frequency increases
Solution Approach 1:
The patent extracts and removes the phase shifter component from the beam forming system, replacing it with oscillators that directly generate signals with required phase differences. This eliminates the source of power loss and phase accuracy degradation associated with phase shifters at high frequencies.
Solution Approach 2:
The patent replaces the mechanical/electrical phase shifting mechanism with an oscillator-based system that generates phase-differentiated signals through frequency division and phase detection. This substitution eliminates the power loss and accuracy issues inherent in traditional phase shifter designs at millimeter wave frequencies.
2Ease of operation
If traditional phase array structures are used, then beam forming is achieved, but complex measurement setups are required for calibration
Solution Approach 1:
The patent introduces phase difference detectors that provide real-time feedback on the phase relationships between oscillators. This feedback mechanism enables automatic calibration and eliminates the need for complex external measurement setups, as the system self-adjusts based on detected phase differences.
Solution Approach 2:
The system performs self-calibration by using the phase difference detectors to automatically measure and adjust the phase relationships between oscillators. This self-service capability eliminates the need for external calibration equipment and complex measurement procedures.
3Ease of operation
If phase shifters are used for beam steering, then beam direction control is achieved, but device complexity increases due to additional components
Solution Approach 1:
The patent removes the phase shifter components from the system, replacing them with oscillators that inherently provide phase control. This reduction in component count simplifies the overall system architecture while maintaining beam steering functionality through direct oscillator phase control.
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
Enables accurate beam steering and formation at desired angles without complex measurement setups, improving transmission gain and reducing power loss by directly controlling oscillators in the phase array structure.
Implementation Method 1
The oscillators formed in the 2D radiation array structure unit may operate at the same oscillation frequency, and output signals of different phases according to a control voltage to be applied differently according to a position of the oscillator.
Implementation Method 2
a plurality of phase difference detectors coupled between the oscillators formed in the 2D radiation array structure unit to detect a phase difference between the coupled oscillators
Implementation Method 3
The phase difference detector may include a power combiner which is coupled between the oscillators forming a coupling network in the 2D radiation array structure unit and adds signals output from the coupled oscillators
Implementation Method 4
a 2D radiation array structure unit in which oscillators coupled to antennas are arranged in 2D
Data Source
AI summary
Disclosed is a high frequency beam forming device. The high frequency beam forming device includes a 2D radiation array structure unit in which oscillators coupled to antennas are arranged in 2D; and a plurality of phase difference detectors coupled between the oscillators formed in the 2D radiation array structure unit to detect a phase difference between the coupled oscillators.