| 1. |
- Duo, Xinzhong, et al.
(författare)
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A concurrent multi-band LNA for multi-standard radios
- 2005
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Ingår i: 2005 IEEE International Symposium On Circuits And Systems (ISCAS), Conference Proceedings. - : IEEE. - 0780388348 ; , s. 3982-3985
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Konferensbidrag (refereegranskat)abstract
- A source-degenerated cascade LNA, which works at 2.4GHz and 5.8GHz simultaneously, is designed for Bluetooth and IEEE wireless LAN 802.11 a/b/g receivers. In this design, 0.15 mu m GaAs PHEMT technology and embedded passives in MCM-D substrate are implemented. At 2.4GHz and 5.8GHz, this LNA provides 12.2dB and 15.3dB gain, respectively. Noise figures of the LNA are 0.53dB and 1.43dB, respectively. Good input matching and output matching are also achieved-S11 and S22 at both frequencies are less than -10dB.
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| 2. |
- Duo, Xinzhong, et al.
(författare)
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Broadband CMOS LNAs for IR-UWB receiver
- 2005
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Ingår i: Norchip 2005, Proceedings. - New York : IEEE. - 1424400643 ; , s. 273-276
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Konferensbidrag (refereegranskat)abstract
- Two single-ended wideband LNAs for Ultrawide-band receiver have been designed and implemented in 0.18 mu m CMOS technology. The first one, a feed-back LNA, is a two-stage amplifier with a improved feedback loop, which provides high gain and enables the input port to match with 500 in a wide frequency range from 500MHz to 8GHz. The second one, an LC low-pass-filter matched LNA, employs a third-order low pass filter in the input port to match a frequency range from 3GHz to 8GHz. In both of the LNAs, the input stage is a common source amplifier. Inductive shunt peaking is used for maximizing the bandwidth and flatting the gain. In the feed-back LNA, measurements show that the maximum gain is 11.5dB, the 3-dB; bandwidth is from 500MHz to 7GHz, IIP3 is -2.2dBm at 4GHz, the minimum noise figure is around 5.7dB, S11 is less than 8.2dB, and the power consumption is 14mW. In the LC filter matched LNA, the 3-dB bandwidth is from 3GHz to 7.3GHz. The maximum gain is 9.6dB, IIP3 is 0dBm at 4 GHz, the minimum noise figure is 7.6dB, S11 is less than -13.4dB and the power consumption is 23mW.
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| 3. |
- El Ghany, M. A. A., et al.
(författare)
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High throughput high performance NoC switch
- 2008
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Konferensbidrag (refereegranskat)abstract
- Increasing the number of virtual channels can improve the throughput in an on-chip interconnection network. High Throughput Butterfly Fat Tree (HTBFT) architecture to achieve high performance Networks on Chip (NoC) is proposed. The architecture increases the throughput of the network by 38% while preserving the average latency. The area of HTBFT switch is decreased by 18% as compared to Butterfly Fat Tree switch.
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| 4. |
- Zheng, Li-Rong, et al.
(författare)
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On-chip versus off-chip passives in radio and mixed-signal system-on-package design
- 2006
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Ingår i: ESTC 2006 - 1st Electronics Systemintegration Technology Conference. - New York : IEEE. - 1424405521 - 9781424405527 ; , s. 221-232
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Konferensbidrag (refereegranskat)abstract
- Optimal total solution for new radio architecture and implementation requires accurate trade-offs for off-chip versus off-chip passives. In this paper, a complete and systematic design methodology for RF blocks in SoP (system-on-package) versus SoC (system-on-chip) is presented. This methodology explores trade-offs between Performance and cost when different on-chip or off-chip passives are used. For a better presentation, the method and design techniques are demonstrated through four multi-band/multi-standard radio design examples with various technologies and different circuit topologies. Our study reveals that, in order to obtain cost benefits in RF-SoPs, small RF chips should be merged as larger chips and the integration density of each RF chip should be high enough. Our study also indicates that in a complex chip like a multi-band radio, moving passives off chip could achieve further cost savings and significant performance improvements. These are general conclusions but, our method offers a detailed analysis which can give quantitative measurements of cost savings and performance improvements in off-chip versus off-chip passives in RF SoP design.
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