Propagation of High-Frequency Radio Waves in the Lower Ionosphere
Author Information
Author(s): Esmaeili-Karnawah Atefeh, Fallah Reza, Khorashadizadeh Seyed Mohammad, Niknam Ali Reza
Primary Institution: University of Birjand
Hypothesis
How do the collision frequency and magnetic dip angle affect the propagation of high-frequency radio waves in the lower ionosphere?
Conclusion
The study found that high-frequency radio waves propagate more easily at night due to lower electron density and collision frequency in the lower ionosphere.
Supporting Evidence
- Left-handed polarized waves propagate more easily than right-handed polarized waves in the lower ionosphere.
- More than 80% of the right-handed circularly polarized wave power can be absorbed during the day.
- Nighttime conditions lead to better transmission of radio waves due to lower electron density.
Takeaway
This study looks at how radio waves travel through the ionosphere, finding that they travel better at night when there are fewer particles in the way.
Methodology
Numerical investigation of the propagation of high-frequency electromagnetic waves using real geometry of Earth's magnetic field and experimental data for electron density and collision frequency.
Limitations
The study assumes constant collision frequency for simplicity, which may not reflect real conditions.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website