With her senior design project, electrical engineering student (and part-time violinist) Tyler Ikehara ’22 hopes to bring radio astronomy skills to Santa Clara University.
With her senior design project, electrical engineering student (and sometimes violinist) Tyler Ikehara ’22 hopes to bring radio astronomy skills to Santa Clara University.
Life is about to change for Tyler Ikehara ’22, in a really exciting way. For three months, the senior has been packing his apartment in Santa Clara and is moving across the country to begin his Ph.D. program at New York University.
On top of living in one of the world’s largest cities, Ikehara will conduct cutting-edge research under NYU Wireless professor and director Thomas Marzetta, who originated Massive MIMO, one of the pillars of 5g technology.
“With it, I will study physics-based innovations that could potentially make for the next generation of wireless technology,” says Ikehara. “The program is great, but the lab looked very similar to what it is in Santa Clara. Everyone is trying to look after each other. I just feel a lot of energy, both from the students and from the city.”
Ikehara has already accomplished a lot in Santa Clara, but before he leaves, he has one last thing to do. For her senior design project, Ikehara is working with a group of students to create a radio telescope that will allow students to study the movements of celestial bodies. The project is in its final stages, but if successful, Ikehara hopes to pass it on to future students to improve its framework and do research that was not previously available in SCU.
Recently, Ikehara started talking about his senior project and other research opportunities he had at the university.
When most people think of a telescope, they think of looking at stars or beautiful pictures of space. But a radio telescope is a little different. For those of you who don’t know, what is a radio telescope? If you look at some of the famous telescopes, like the James Webb telescope, they are mostly for optical images. A radio telescope is not really trying to take a picture. Instead, it looks at the sky and picks up the electromagnetic wave associated with celestial bodies and then uses Software Defined Radio (SDR) to process it so it can know where those bodies are in the galaxy, even if the signal is very weak. For example, our telescope is a horn antenna that searches for the known frequency of 1420 MHz, which is produced by hydrogen atoms. These hydrogen atoms are associated with certain celestial bodies, so if we detect a signal at that frequency, we can determine the celestial bodies and their movements relative to us.
We set it up so that it can be a multi-stage project. The next year, another team can use our framework and do better. For example, we use the horn antenna because it is relatively simple to build, but it does not always give the exact results you want. The next step could be redesigning the antenna and using a more direct satellite dish or a horn that can be moved.
How was she involved in research outside of Santa Clara’s classroom? My sophomore year took an electromagnetic course with assistant professor Kurt Schab, which is really fantastic. He mentioned a project he was working on and it really intrigued me, so I asked him if he could join his research group. My first project was on the summer of my sophomore year and I focused on Software Defined Radio, which is basically a reprogrammable antenna and a radio device. Instead of having to swap hardware to fit a certain application, you can reprogram the SDR for the software. It is more flexible in this regard and can be used for many things – AM / FM radio, GPS, birdwatching and various other radio applications. For this project, I spent a lot of time reading about Software Defined Radios and managed to get a bit of hardware – a small USB-dongle SDR, basically – to play. I tried working with AM / FM radio and also tried working with ADSB to follow the plans. We meet with other students and Dr. Schab each week to discuss what we have learned. I spent most of the summer before scrambling for a bit to work on another project, but I went back to that and used my research to inform my senior design project.
You also did some research with the United States Navy. How did you participate in this? It was part of an internship with the Navy chain called the Naval Information Warfare Center Pacific (NIWC Pacific). I got really involved with this, again, through Dr. Schab. because he was also involved with the research. We tested the High Frequency antennas to see if we could improve their efficiency and bandwidth beyond the basic limits. We used a technique called Direct Antenna Modulation (DAM) to increase bandwidth. The stage was remote because of COVID, but we did a lot of simulations and we also had to do a few practical things here in Santa Clara. We worked in tandem with a Ph.D. students at the University of Oklahoma and were responsible for developing an experimental procedure for him to try in Oklahoma. I also learned a process called SCPI, which I am excited to use again.
What is SCPI? SCPI stands for Standard Commands for Programable Instruments. At the bottom, enter the code that changes the target settings and saves the target data to your computer. Instead of having to change the buttons every time and press the save button, I can change a line in code and run experiments automatically. It was really satisfying for me because I combined the coding knowledge I learned as well as some skills from the more industrial side for practical work.
Many of your research experiences have been facilitated by Assistant Professor Kurt Schab. What kind of impact did that have on your time in Santa Clara? Dr. Schab knows a lot about everything. Learn so much just by talking to him. What I really like about him is that he’s practical and practical. He’s an expert in theory, but also really good with experiments. His lessons are by far the best I’ve ever had. It covers complicated theoretical topics and makes them easy to understand. It’s really challenging to look beyond math. Not just how we solve a problem, but explain why we solve a problem.
In addition to your research in engineering, you also play the violin. How did you participate in the music program? Playing in the orchestra has been a big part of my time here. I’ve been playing the violin since fifth grade, so it’s 12-14 years old now. With the neighborhood system in Santa Clara you have defined a lot of freedom with the classes you take. We know that a lot of music programs are much more competitive, so it would be harder to do. So I’m really grateful to have that outlet.
Tyler Ikehara performs with the SCU Orchestra as part of the Competition and Air Competition. Photo by Adam Hays
Playing the violin can be cruel, at times. You have to practice a lot and sometimes the practice does not go as you want. But when it goes well, it feels really good. You’re really putting yourself out there. Put all your emotions into your game and it’s revealing and it’s really satisfying. It’s different.
This past March, I had the opportunity to sing solo with the SCU Orchestra as part of the Concert and Air Competition. I played one of my favorite pieces, the second movement of Max Bruch’s Violin Concerto No.1. It was definitely a new experience for me and it really pushed me out of my comfort zone. With engineering you really try to solve problems, so you don’t necessarily involve emotions, I say. However, it is the combination of all these experiences that has helped me train in the person I am today and I am so happy to be able to be a student in SCU.
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| The front page of the May 2, 2011 issue of the Denver Post, with a headline reporting the assassination of Osama bin Laden. | |
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The Rocky Mountain News, known locally as Rocky, was a daily newspaper published in Denver, Colo. Founded in 1859, the Rocky Mountain News was Colorado’s first newspaper.
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After your free trial, you will be charged $ 5.00 for the first 3 months of your subscription. After that, your subscription will automatically renew at $ 5.99 per month until you cancel.
How much does the Sunday Denver Post cost?
$ 35 for a 20-week subscription to “The Sunday Denver Post” and a $ 15 King Soopers Gift Card ($ 55 value)
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| Covered February 3, 2013 | |
|---|---|
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