All-flat phononic band structure controls sound and vibrations by trapping energy
A team of UConn College of Engineering (CoE) researchers have achieved a major milestone in the field of phononics with the ...
Hackaday9 年
Design & Build Part 2: Multi-Band, Phasing SSB, And SDR
and design notes here. The interesting thing about this radio is that its VFO, power amplifier, and front-end cover all HF bands up to the VHF band 2m. This radio could quite easily be made into ...