| Autor: |
Joy Laskar, Wangmyong Woo, Yan-Yu Huang, Chang-Ho Lee |
| Rok vydání: |
2010 |
| Předmět: |
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| Zdroj: |
2010 IEEE Radio Frequency Integrated Circuits Symposium. |
| DOI: |
10.1109/rfic.2010.5477366 |
| Popis: |
A wide bandwidth, highly linear variable attenuator designed in 0.18µm triple-well CMOS process is presented. This attenuator is based on three cascade π-networks with body voltage distribution scheme to minimize the effects of the input power levels. Measurements show it achieves minimum 1-dB gain compression of 7.5 dBm. The mid-band insertion loss is 1.6 dB and the maximum attenuation is 34.8 dB. This attenuator has a linear-in-dB controllability from 400 MHz to 3.7 GHz with input return loss better than 9 dB. To our knowledge, this is the highest linear CMOS variable attenuator with a wide bandwidth of 3.3 GHz. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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