Abstract: The whip antennas used for HF/VHF band communication on the vehicles or ships are generally larger in length and diameter. It would be of great significance if it could be easily hidden from ...

Ukraine is rapidly deploying low-cost interceptor drones to counter Russia’s evolving aerial attacks on cities and power ...

This article was first published September 12, 2025, and has been updated — because a cute antenna is a great (and cheap) ...

Abstract: A spatially confined, platform-based high-frequency (HF) antenna array with enhanced bandwidth and direction-finding (DF) accuracy is presented. As the HF band is widely used in many ...

We independently review everything we recommend. We may make money from the links on our site. Learn more› By Teresa Carr Vitamin prices are confounding—and they vary wildly. You can spend less than ...