Using Feedback Technology Of Wideband MMIC Digital Attenuator
- https://doi.org/10.2991/emim-15.2015.60How to use a DOI?
- Windband; Digital; Attenuator; Feedback technology; MMIC;
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.
- © 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/).
Cite this article
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 - https://doi.org/10.2991/emim-15.2015.60 ID - Liu2015/04 ER -