Performance comparison of previously reported attenuators based on CVD-grown graphene.
|References|||S 21| (dB)|||S 11| (dB)||Frequency band (GHz)||Structure||The function of GSSs in attenuator|
|Ref. ||2–15||<−15 dB||7–14.5||Two GSSs + SIW||Dissipate the EM field inside the SIW|
|Ref. ||3–14||<−20 dB||7.7–19||A GSS + HMSIW||Dissipate the fringe EM field of HMSIW|
|Ref. ||3–15||<−15 dB||9–40||Two GSSs + Microstrip||Dissipate the fringe EM field on both sides of microstrip line|
|Ref. ||3–15||<−16 dB||9–40||A GSS + CPW||Dissipate the EM field around the slot coupled to the GSS|
|Ref. ||3–15||<−15 dB||9–40||A GSS + slot line||Dissipate the EM field around the slot coupled to the GSS|
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