Abstract: A dynamically tunable coaxial attenuator based on graphene is presented in this paper. The attenuator is achieved by inserting a graphene sandwich structure (GSS) inside the dielectric of ...

Due to the use of a gain-boosted input stage and binary controlled attenuators, the LNA exhibits a broadband response and four programmable gain levels from 18.9 to 7.9 dB while maintaining impedance ...