This one from Sharden doesn't reinvent the wheel, but the reviews are good, and the price is right, making it an easy one to recommend. The electric screwdriver delivers tons of power, with up to 0.35 ...

Abstract: Aiming on 10 GHz excessive radiation problem in IC package, a novel frequency selective surface (FSS) design is proposed in this paper. It is an ultrathin structure with only 0.0067λ 0 ...