DocumentCode
3458046
Title
Ultra broadband DC to 40 GHz 5-bit pHEMT MMIC digital attenuator
Author
Ju, Inkwon ; Noh, Youn-Sub ; Yom, In-Bok
Author_Institution
Global Area Wireless Technol. Res. Group, Electron. & Telecommun. Res. Inst., Daejon, South Korea
Volume
2
fYear
2005
fDate
4-6 Oct. 2005
Abstract
A broadband, DC to 40 GHz 5-bit MMIC digital attenuator has been developed. The attenuator has been fabricated with 0.15 μm GaAs pHEMT process. This attenuator has 1 dB resolution and 23 dB dynamic range. High attenuation accuracy has been achieved over all attenuation range and full 40 GHz bandwidth with the reference state insertion loss of less than 6 dB at 20 GHz. The input and output return losses of the attenuator are better than 14 dB over all attenuation states and frequencies.
Keywords
HEMT integrated circuits; MMIC; attenuators; microwave filters; 0.15 micron; 20 GHz; 40 GHz; 5 bit; GaAs; high electron mobility transistors; pHEMT MMIC digital attenuator; Attenuation; Attenuators; Circuits; Frequency; Insertion loss; MMICs; PHEMTs; Resistors; Switches; Topology;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference, 2005 European
Print_ISBN
2-9600551-2-8
Type
conf
DOI
10.1109/EUMC.2005.1610096
Filename
1610096
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