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I 3D printed these 6 enclosures for my ESP32 devices, and they look so much better

I recently purchased a 3D printer, and I've been using it to print all kinds of things relating to my smart home and my ...
IEEE

Antenna-filter-antenna arrays as a class of bandpass frequency-selective surfaces

Abstract: A method is introduced for designing bandpass frequency-selective surfaces (FSSs) using arrays of antenna-filter-antenna (AFA) modules. An AFA module is a filter with radiation ports, which ...