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Ando Lab
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A lab that uses simulation to uncover how electromagnetic waves propagate.
AboutAbout the lab
Calculating how electromagnetic waves propagate.
The Ando Lab studies computational electromagnetics, including efficient methods for calculating electromagnetic wave propagation, antenna analysis, and simulation of radio wave propagation through space.
Its research ranges from using simulation to elucidate unknown electromagnetic phenomena to designing antennas that meet required specifications.
The lab also uses simulation to investigate how electromagnetic waves propagate within the Earth's crust and the ionosphere.
Key terms
- Computational electromagnetics
- A method that divides space into grid points, computes the electric and magnetic fields at those points on a computer, and uses them to study how electromagnetic waves propagate
- FDTD method
- The finite-difference time-domain method. A long-established computational electromagnetics method that calculates electromagnetic fields while advancing in time steps
- Ionosphere
- The upper-atmosphere region between which and the ground low-frequency electromagnetic waves travel long distances. Changes in its state affect received radio waves
ResearchResearch themes
The Ando Lab investigates how electromagnetic waves propagate using computational electromagnetics, which calculates them on a computer. Its research areas include simulation of electromagnetic wave propagation in the Earth's crust and the ionosphere.
*Illustrative imageComputing Electromagnetic Wave Propagation in the Earth's Crust
Using the WLP-FDTD method, which expands time in weighted Laguerre polynomials, the lab efficiently calculates electromagnetic wave propagation within the Earth's crust. It examines in detail how electromagnetic waves, which have been suggested to possibly arise with crustal deformation such as earthquakes, propagate.
*Illustrative imageRadio Wave Propagation Between the Ground and the Ionosphere
Low-frequency electromagnetic waves, from a few Hz to several tens of kHz, travel long distances between the ground and the ionosphere. The lab studies the inverse problem of identifying the state of the ionosphere from anomalies in received radio waves, and aims to develop a general-purpose simulator.
MembersFaculty
The Ando Lab's members consist of faculty, administrative assistants, and master's and undergraduate students.As of 2023
- Associate ProfessorYoshiaki Ando
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “FDTD TFSF (English)” User:Dominator9000 / CC BY-SA 4.0 (cropped)
- Computing Electromagnetic Wave Propagation in the Earth's Crust: “Using ground-penetrating radar - Flickr - The Official CTBTO Photostream” The Official CTBTO Photostream / CC BY 2.0 (cropped)
- Radio Wave Propagation Between the Ground and the Ionosphere: “Esterwegen - B401 - NSG Esterweger Dose - VLF 01 ies” Frank Vincentz / CC BY-SA 3.0 (cropped)
- Related lab (Murakami Lab): “Z Antennas at UHF Frequencies” C. Holloway/NIST / Public domain (cropped)
- Related lab (Kayano Lab): “Circuit board after manual etching” Tinux / CC0 (cropped)
- Related lab (Li Lab): “RF Fully Anechoic Room 1” Mihaelawojcik / CC BY 4.0 (cropped)
- Related lab (Kan Lab): “Metamaterial ( )” National Institute of Standards and Technology / Public domain (cropped)
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