Portable Antennas & Direct Energy Weapons - Celestial Reports Snippets

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DISASTER RESPONSE New, Portable Antenna Could Help Restore Communication After
Disasters Researchers from Stanford and the American University of Beirut have developed a lightweight, portable antenna that can communicate with satellites and devices on the ground, making it easier to coordinate rescue and relief efforts in disaster-prone areas. It also can be a PORTABLE GROUND BASE ANCHOR FOR OPTICAL DIRECT ENERGY WEAPONS that need a base station to cut through atmospheric interference. The antenna, described recently in Nature Communications, packs down to a small size and can easily shift between two
configurations to communicate either with satellites or devices on the ground without using additional power. “The state-of-the-art solutions typically employed in these areas are heavy, metallic dishes. They’re not easy to move around, they require a lot of power to operate, and they’re not particularly cost-effective,”
This project is associated with Stanford SystemX Alliance., known for ubiquitous sensing, computing and communication with
embedded intelligence.
Two Functions in One Antenna
The antenna designed is made of fiber composites (a material often used in satellites) and resembles a child’s finger-trap toy, with multiple strips of material crossing in spirals. Just like any helix-based antenna, conductive
material running through the antenna sends out signals. Its unique structure can adjust the pattern and power of those signals in the new antenna by pulling it into longer shapes or shorter shapes. The antenna is a hollow ring that stands just over 1 inch tall and about 5 inches across – not much larger than a bracelet – and weighs 1.4 ounces. In this shape, it’s able to reach satellites with a high-power signal sent in a particular direction.
“The frequency you want to operate at will dictate how large the antenna needs to be, but we’ve been able to show that nomatter what frequency you operate at, you can scale this design principle to achieve the same performance,” The fabricated prototype was tested for deployment and structural performance at Stanford and its electromagnetic radiation characteristics at the
antenna measurement facilities..
Applications in Orbit
To be deployed in the field, the antenna would need to be paired with a transceiver to send and receive signals, a ground plane to reflect radio waves, and other electronics, but the whole package would still only weigh about 2 pounds.