The Avid Outdoorsman on MSN

9mm vs 10mm vs .45 ACP: Picking the right PCC caliber

Choosing a pistol-caliber carbine is less about brand loyalty and more about how you actually plan to use it.... The post 9mm ...
IEEE

A Compact Harmonic-Suppressed Filtenna Based on Miniaturized High-Order Half-Mode SIW Cavity

Abstract: A compact harmonic-suppressed filtenna (filtering antenna) for multiantenna system applications is presented in this letter. It only consists of a miniaturized substrate integrated waveguide ...
IEEE

Compact Balanced-to-Balanced Filtering Power Divider With Wide Range and High Level of Reflectionless, Isolation, Common-Mode Rejection, and Enhanced Frequency Selectivity

Abstract: This paper presents a novel compact balanced-to-balanced (BTB) power divider featuring an exceptional reflectionless bandpass filtering response. A pair of three-line coupled structures ...
Survival World on MSN

These 15 iconic American ammo types shaped wars, hunting, and gun culture more than most people realize

The 9mm Parabellum is widely used in self-defense, competitive shooting, and target practice. Its popularity has led to a wide variety of ammunition types being available, including full metal jacket, ...