Broadband amplitude, frequency, and polarization splitter for terahertz frequencies using parallel-plate waveguide...

Area of Science:

• Optics and Photonics
• Electromagnetics
• Terahertz Technology

Background:

• Terahertz (THz) frequencies present unique challenges for signal processing.
• Developing efficient and versatile THz components is crucial for next-generation communication systems.
• Existing THz devices often lack multi-functional splitting capabilities.

Purpose of the Study:

• To design and demonstrate a broadband frequency and polarization demultiplexer for THz applications.
• To integrate amplitude splitting functionality into the demultiplexer.
• To validate the device's performance across a wide THz frequency range.

Main Methods:

• Fabrication of a demultiplexer utilizing parallel-plate waveguides (PPWGs).
• Experimental validation of the device's performance from 0.2 to 1 THz.
• Integration of a second demultiplexer stage to achieve amplitude splitting.

Main Results:

• Demonstrated a polarization-sensitive demultiplexer operating across a broadband THz range (0.2-1 THz).
• Successfully implemented a fifty-fifty amplitude splitter by adding a second stage.
• The device integrates amplitude, polarization, and frequency splitting in a single unit.

Conclusions:

• The developed PPWG-based demultiplexer offers a significant advancement in THz passive components.
• The device's multi-functional splitting capabilities (amplitude, polarization, frequency) are advantageous for THz communications.
• The stainless-steel traveling-wave antenna ensures mechanical robustness and practical applicability.