DocumentCode :
1537684
Title :
Broadband compact InGaAs pin 5-bit digital attenuator using πtype resistive network
Author :
Yang, J.G. ; Yang, Kun
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
Volume :
48
Issue :
12
fYear :
2012
Firstpage :
702
Lastpage :
704
Abstract :
A broadband compact InGaAs pin 5-bit digital attenuator using a π-type resistive network is demonstrated. The proposed 5-bit digital attenuator is composed of π-type resistive networks for good input/output matching and accurate attenuation characteristics. The fabricated attenuator MMIC has good performance characteristics, such as an insertion loss less than 11.5 dB and a small RMS amplitude error of 2.3 dB at the broadband frequency range of 7-40 GHz. In addition, the overall chip size, which is significantly reduced by using the developed multilayer structure, is only 1.59×0.84 mm2.
Keywords :
III-V semiconductors; MIMIC; MMIC; attenuators; digital circuits; gallium arsenide; impedance matching; indium compounds; resistors; π-type resistive network; InGaAs; MMIC; broadband compact pin digital attenuator; frequency 7 GHz to 40 GHz; input matching; output matching;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el.2012.0172
Filename :
6215311
Link To Document :
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