Terahertz Antenna Array Coupling Layout for Phase Synchronization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing terahertz wave antenna arrays face challenges in satisfying phase matching conditions between oscillators, leading to insufficient synchronization and reduced gain and directivity due to inadequate coupling line designs.
Innovation Solution
The proposed antenna array structure includes a configuration where antennas are arranged in a 3x3 matrix with coupling lines extending in both horizontal and vertical directions, connected at specific offsets to satisfy phase matching conditions, enhancing synchronization and gain through mutual injection-locking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a plurality of oscillators are integrated on the same substrate to form an antenna array, then the gain and directivity of the terahertz wave can be improved, but phase matching conditions between oscillators become difficult to satisfy, leading to insufficient synchronization
Solution Approach 1:
A coupling line is introduced as an intermediary element to connect adjacent oscillators in the antenna array. This coupling line mediates the interaction between oscillators, enabling phase synchronization through controlled coupling. The coupling line acts as a bridge that transfers and synchronizes the oscillation phases across multiple antenna elements, resolving the phase matching difficulty while maintaining high gain and directivity.
2Manufacturing precision
If coupling lines are added to synchronize oscillators, then phase matching can be improved, but the device complexity and number of components increase
Solution Approach 1:
The coupling line is merged with the substrate structure, integrating the coupling function directly into the base platform rather than adding separate discrete components. This merging approach allows the coupling line to be formed as part of the substrate fabrication process, reducing the number of separate parts and simplifying the overall device structure while still achieving the necessary phase synchronization between oscillators.
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
This configuration improves directivity and antenna gain by ensuring phase matching and synchronization across the array, even with increased numbers of antennas, resulting in more efficient terahertz wave generation and detection.
Implementation Method 1
oscillators in which a resonator and an element having an electromagnetic wave gain of a terahertz wave are integrated... oscillators in which a resonant tunneling diode (RTD) and an antenna are integrated are expected as elements that operate at room temperature in a frequency range around 1 THz
Implementation Method 2
microstrip lines that are coupling lines for causing the plurality of oscillators to synchronize with one another in phase
Data Source
AI summary
In an antenna array including first through fifth antennas, the second, first, and third antennas are arranged in this order in a first direction, and the fourth, first, and fifth antennas are arranged in this order in a second direction. A conductor layer of the second antenna is connected to a conductor layer of the first antenna via a first coupling line extending in the first direction, the conductor layer of the first antenna is connected to a conductor layer of the third antenna via a second coupling line extending in the first direction, a conductor layer of the fourth antenna is connected to the conductor layer of the first antenna via a third coupling line extending in the second direction, and the conductor layer of the first antenna is connected to a conductor layer of the fifth antenna via a fourth coupling line extending in the second direction.