NASA developed and tested a 3D-printed antenna to demonstrate a low-cost capability to communicate science data to Earth. The antenna, tested in flight using an atmospheric weather balloon, could open ...

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Looking for the best outdoor speakers? You’re in the right place ... Beneath its sheath lives a battery good for 27 hours, as well as drivers that deliver omnidirectional audio refined for the great ...

Abstract: This paper proposes a 3-D omnidirectional wireless power transfer (WPT) system with multiple loads to satisfy the multi-directional charging misalignment condition in space. First, this work ...

Abstract: WLAN serves as a vital complement to mobile communication, typically requiring proper omnidirectional gain and beamwidth to balance propagation distance and vertical beam coverage. To suit ...

A crane lowers the steel reflector framework for Deep Space Station 23 into position on December 18 on a 65-foot-high (20-meter) platform above the antenna’s pedestal that will steer the reflector.