Core & Main Inc. has closed its previously announced acquisition of ARGCO Northeast LLC, a distributor of fire protection products.

Abstract: In this paper, a GaN HEMT designed LNA with WIN 0. 15um process for 18–27 GHz (K-band) is presented. The LNA adopts a four-stage common-source structure to achieve 22.8-24.8dB gain in the ...

A ring-core erbium-doped fiber amplifier for mode division multiplexing is proposed to amplify 14 orbital angular momentum modes with gains more than 23dB and differential modal gain less than 1dB.