The magnetic loop antenna is a familiar sight in radio amateur circles as a means to pack a high performance HF antenna into ...

In the global game of nuclear brinksmanship, secrets are the coin of the realm. This was especially true during the Cold War, ...

Abstract: This paper presents a miniaturized helical antenna with a high permeability core. The proposed antenna functions at 3.35 GHz, with return loss of less than -10 dB and gain of 9.39 dBi. The ...

Abstract: This paper proposes the design method of utilizing mixed couplings theory between resonators with various antenna validations presented and discussed. Due to the mixed couplings excited ...

We take a closer look at how two of the best GPS dog collars fare against each other in this SATELLAI Collar vs Halo Collar 5 comparison.

The first dual-satellite mission to another planet, NASA's ESCAPADE (Escape and Plasma Acceleration and Dynamics Explorers), is scheduled for launch no earlier than Sunday, Nov. 9, from Cape Canaveral ...

Early Black Friday has turned dash cams into impulse buys; finally, surveillance you get to benefit from. Snag a deal now and ...

Valve has finally unveiled its long-awaited standalone VR headset, Steam Frame (aka ‘Deckard’). While pricing and release ...

The Tile Pro has a longer tracking range, up to 400 feet, and a louder sound to help you find lost items. The Tile Mate is ...