Dynamic Waveguide Slot Switching for Beam Steering
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication and power transmission systems face limitations with phase-shifters being lossy, difficult to construct, having limited bandwidth, and being inflexible, while slotted waveguides have fixed slot locations that restrict beam directionality.
Innovation Solution
A method involving a waveguide device with dynamically activatable and deactivatable switches to open and close slots at determined locations, allowing for precise control of electromagnetic wave directionality based on target angle, using a circuit controller to compute and assign switch activation instructions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If phase-shifters are used to direct radiation at certain angles, then beam directionality is achieved, but the system becomes lossy, difficult to construct, limited in bandwidth, and inflexible
Solution Approach 1:
The patent replaces mechanical phase-shifters with an electromagnetic field-based waveguide system. Instead of using complex mechanical phase-shifting components that require physical adjustment mechanisms, the invention uses a waveguide with slots that directly manipulate electromagnetic wave propagation through field interactions, eliminating the need for mechanical phase-shifting hardware and its associated complexity
Solution Approach 2:
The patent changes the operational parameters by using variable impedance loading through PIN diodes in the waveguide slots. By changing the electrical state of the PIN diodes (on/off states), the impedance at each slot changes, which dynamically alters the phase and amplitude of radiated elements without requiring mechanical movement or complex phase-shifter components
2Adaptability or versatility
If slotted waveguide with fixed slot locations is used to direct wave at specified angle, then beam directionality is achieved, but the system lacks flexibility in adapting to changing target positions
Solution Approach 1:
The patent introduces dynamic control to the waveguide system by incorporating PIN diodes that can be electrically switched. This allows the slot impedance states to change dynamically, enabling real-time adjustment of beam direction without physically moving the slots. The system transitions from a static fixed-slot configuration to a dynamic electronically-controlled configuration
Solution Approach 2:
The patent changes the electrical parameters (impedance states) of the slots through PIN diode control, allowing the same physical slot locations to produce different beam directions. By varying the impedance parameters at each slot, the system achieves multiple beam directions from fixed physical structures
3Productivity
If fixed slot locations at fraction of wavelength are used in waveguide, then wave directionality is achieved, but the system cannot dynamically adjust to different target angles
Solution Approach 1:
The patent replaces mechanical slot repositioning mechanisms with electrical control of PIN diodes. Instead of physically moving slots to different positions along the waveguide (which would be slow and mechanically complex), the system uses electrical switching of PIN diodes to instantly change the effective radiation pattern, achieving rapid beam steering without mechanical movement
Solution Approach 2:
The patent introduces dynamic electrical control through PIN diodes that can be switched in real-time. This allows the waveguide system to dynamically adjust its radiation characteristics and beam direction instantaneously, providing both high productivity (fast response) and versatility (multiple target angles) without the trade-off present in fixed mechanical systems
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 flexible and efficient beam directionality in wireless transmission systems by dynamically adjusting slot locations, overcoming the limitations of fixed slot configurations and improving system adaptability to changing target positions.
Implementation Method 1
waveguide device transmitting a wave in a target direction based at least in part on the locations of the open selected ones of the multiple slots
Data Source
AI summary
Systems and methods are described for operating a waveguide device having multiple slots, each slot having one or more switches. The waveguide device receives, from a circuit controller, an instruction to dynamically deactivate one or more switches to open selected ones of the multiple slots at determined locations in the waveguide device and to dynamically activate one or more switches to close selected ones of the multiple slots at determined locations in the waveguide device, wherein the circuit controller is communicatively coupled to each of the switches on the waveguide device. The waveguide device transmits a wave in a target direction based at least in part on the locations of the open selected ones of the multiple slots at the determined locations in the waveguide device.