I had fantastic electrical engineering teachers at Virginia Tech (my alma mater for BSEE, MSEE, and PhD). However, I consciously constructed this Georgia Tech lecture thinking, “This is the way I wish I had been taught Phasors.”
Sending Waves Back Where They Came
A Multi-modulation Retrodirective Feed Network for Backscatter Communications
Mohammad Alhassoun, Francesco Amato, Gregory D. Durgin
2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)
This paper presents a new device for implementing a retrodirective backscatter modulator — an antenna + RF structure that reflects microwaves back to their source, while also adding information. The technique is extremely flexible and low-power, although only practical at microwave bands when the wavelength becomes several centimeters or shorter.
What are (EM) People Watching on YouTube?
Curious what the crowds watch over on YouTube? Me neither. I can share what the average profdurgin watcher looks at over on the group’s EM channel, though. Below is a rank-ordered list of the top 25 videos by watch time among the EM lectures, based on lifetime video statistics. [Read more…]
Long-Range Backscatter with Tunnel Diodes
RFID Backscattering in Long-Range Scenarios
This paper contains the designs for Francesco Amato’s tunnel diode modulator and some of the record-beating range measurements that resulted from his PhD work (5.8 GHz backscatter at up to 1.2 km). Of particular interest is the characterization of the irregular link-budget that results from these highly nonlinear devices.
- « Previous Page
- 1
- …
- 55
- 56
- 57
- 58
- 59
- …
- 71
- Next Page »