Using Feedback Technology Of Wideband MMIC Digital Attenuator

DOI

10.2991/emim-15.2015.60How to use a DOI?

Keywords

Windband; Digital; Attenuator; Feedback technology; MMIC;

Abstract

This paper mainly introduces the Wideband MMIC digital attenuator by using feedback technology. Firstly, the theories of basic GaAs digital attenuator MMIC’s configurations are searched. Secondly, using feedback technology and normal configuration are contrasted, subsequently, appropriate topology is selected for each stage. This attenuator has been realized by 0.5µm GaAs pHEMT process. Simulation results of the digital attenuator has 0.5dB resolution and 31.5dB dynamic attenuation range, over DC~6GHz, high attenuation accuracy is less than ±0.7dB, Input Voltage Standing Wave Ratio(VSWRIN) was less than 1.2 and Output Voltage Standing Wave Ratio(VSWROUT) was less than 1.3 for all attenuation states, insertion loss is less than 3.2dB.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Chengpeng Liu
AU  - Xiaojia Feng
PY  - 2015/04
DA  - 2015/04
TI  - Using Feedback Technology Of Wideband MMIC Digital Attenuator
BT  - Proceedings of the 2015 International Conference on Education, Management, Information and Medicine
PB  - Atlantis Press
SP  - 308
EP  - 313
SN  - 2352-5428
UR  - https://doi.org/10.2991/emim-15.2015.60
DO  - 10.2991/emim-15.2015.60
ID  - Liu2015/04
ER  -