A research team performed multiple tests on this largely unused part of the electromagnetic spectrum, which has issues of path loss and multipath, and concluded this band and its signals can be successfully employed.
Using dipoles printed with silver ink on a pre-scored folder substrate paper, a Georgia Tech team devised a scheme for RF filters of various types that can be tuned by adjusting the origami-based folding angles.
Equipped with an efficient JESD interface, this dual-channel ADC reaches 5.2 Gsamples/s per channel with an 8-GHz bandwidth, meeting the needs of 5G as well as advanced radar and instrumentation systems.
This quad-channel RF front end (and dual-channel sibling) enables direct sampling to 6 GHz without the need for additional frequency-conversion stages, eliminating local oscillators, mixers, amplifiers, and filters.
Using additive manufacturing to fabricate “widgets” from conductive plastic, researchers have devised a way to remotely sense motion (and more) via Wi-Fi backscatter, without any interconnecting wires or need for...