Coplanar waveguide structure applying microwave photonic crystal

Abstract

The invention discloses a coplanar waveguide structure applying microwave photonic crystal. The structure comprises a dielectric layer (3) for high-frequency transmission, a photonic crystal ground plane (2) for limiting electromagnetic wave and a central conductor (4) for transmitting the electromagnetic wave, wherein the photonic crystal ground plane (2) is formed by connecting a plurality of microwave photonic crystal unit structures (1), is positioned above the dielectric layer (3) and is tightly combined with the dielectric layer (3); the central conductor (1) is an L-type 50 ohm copper conducting wire; the middle position of the conducting wire is bent for 90 degrees; and the central conductor (4) is positioned above the dielectric layer (3) and tightly combined with the dielectric layer (3). The provided coplanar waveguide structure applying the microwave photonic crystal effectively reduces the signal leakage, simplifies a preparation process to enable the process to be more suitable for monolithic microwave integration, and can improve the transmission coefficient of the real-coplanar waveguide.

Description

technical field [0001] The present invention relates to the technical field of microwave circuit preparation, and more specifically, relates to a coplanar waveguide structure using microwave photonic crystals, which can effectively reduce signal leakage and loss caused by the ninety-degree turn of the microstrip line. The problem of signal incompleteness can be solved, and the transmission coefficient of the coplanar waveguide in the embodiment can be improved. Background technique [0002] The design of integrated circuits is developing in the direction of high frequency, small size, and multiple components, which leads to increasing crosstalk and leakage between components and transmission lines inside the circuit, especially when the signal line turns, which seriously restricts development of integrated circuits. Correspondingly, how to reduce the negative impact of this phenomenon is also a practical task faced by circuit design and application. [0003] Photonic cryst...

AI Technical Summary

Problems solved by technology

[0002] The design of integrated circuits is developing in the direction of high frequency, small size, and multiple components, which leads to increasing crosstalk and leakage between components and transmission lines inside the circuit, especially when the signal line turns, which seriously restricts development of integrated circuits

Images