Abstract: In this paper, a direct matrix approach is proposed for the first time to synthesize a coupling matrix for a frequency-variant coupled dual-pass band filter based on two low-pass prototype ...

If youre over 50, strength training may not always include hitting the weight room, especially if youre dealing with back pain and achy joints. But you can still get a great workout and build stronger ...

Botox can feel a bit magical. With just a few small injections, frown lines soften, crow’s feet fade, and you look more refreshed, almost as if you finally got a good night’s sleep. But what happens ...

Abstract: This letter proposes a scheme of metasurface-based digital communication with out-of-band (OOB) radiation suppression. The existing systems' uniform-amplitude radio frequency feeding leads ...