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Compensating Atmospheric Channel Dispersion for Terahertz Wireless Communication
Karl Strecker1, Sabit Ekin1, John F O'Hara2
1School of Electrical and Computer Engineering, Stillwater, Oklahoma, 74078, USA.
Scientific Reports
|April 4, 2020
Summary
We developed a novel method to compensate atmospheric group velocity dispersion for terahertz pulses, improving data rates in wireless communication. This technique uses stratified media reflectors to correct pulse reshaping caused by air
Area of Science:
- Physics
- Optical Engineering
- Wireless Communication
Background:
- Atmospheric group velocity dispersion reshapes terahertz pulses due to air's frequency-dependent refractivity.
- This dispersion significantly limits data transmission rates in ultra-wideband terahertz wireless communication.
- Existing methods lack effective compensation for atmospheric dispersion in terahertz systems.
Purpose of the Study:
- To introduce and demonstrate a novel method for compensating atmospheric group velocity dispersion of terahertz pulses.
- To enhance data transmission rates in terahertz wireless communication by mitigating atmospheric effects.
- To validate the proposed compensation method through simulations and experimental measurements.
Main Methods:
- Utilized a cohort of stratified media reflectors to counteract atmospheric dispersion.
- Implemented the method for dispersion compensation in the 0.2-0.3 THz frequency range.
- Conducted analytic and numerical simulations alongside experimental validation.
Main Results:
- Achieved dispersion compensation up to 99% of the ideal value.
- Demonstrated an in-band power efficiency exceeding 98%.
- Successfully compensated group velocity dispersion under common atmospheric conditions.
Conclusions:
- The proposed method effectively compensates for atmospheric group velocity dispersion in terahertz pulses.
- This compensation significantly improves the potential data transmission rates for terahertz wireless communication.
- The technique shows high efficiency and is validated by experimental results, paving the way for practical applications.
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