Title :
Broadband, low-loss 5- and 6-bit digital attenuators
Author :
Krafcsik, D. ; Ali, Farahiyah ; Bishop, Steve
Author_Institution :
Adv. Technol. Div., Westinghouse Electr. Corp., Baltimore, MD, USA
Abstract :
Low-loss 5- and 6-bit MMIC digital attenuators covering DC-16 GHz have been designed, fabricated and tested. These attenuators provide exceptional performance, with reference state insertion loss of less than 5 dB at 16 GHz (for the 6-bit chip) and 28 dB of dynamic range of attenuation. The input and output VSWRs of the attenuators are better than 1.6:1 over all attenuation states and frequencies. These digital attenuators have an input third order intercept point of 37 dBm.<>
Keywords :
attenuators; field effect MMIC; 0 to 16 GHz; 5 dB; MMIC digital attenuators; VSWR; broadband attenuators; insertion loss; low-loss design; Attenuation; Attenuators; Circuit topology; Dynamic range; Frequency; Insertion loss; MESFETs; MMICs; Resistors; Switches;
Conference_Titel :
Microwave Symposium Digest, 1995., IEEE MTT-S International
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-2581-8
DOI :
10.1109/MWSYM.1995.406288
