| 1. |
- Aspemyr, Lars, et al.
(författare)
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25 GHz and 28 GHz wide tuning range130 nm CMOS VCOs with ferroelectric varactors
- 2007
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Ingår i: [Host publication title missing]. - 9781424413072 ; , s. 30-33
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Konferensbidrag (refereegranskat)abstract
- Two 130nm CMOS VCOs with ferroelectric varactors are presented. The cross-coupled VCO-cores are flip-chip mounted on silicon carriers with integrated inductors and tunable ferroelectric varactors. The output frequency of the first VCO is tunable from 23.4 GHz to 26.1 GHz, corresponding to a tuning range of 11 %. The phase noise of this VCO, tuned to its center frequency, measures -117 dBC/Hz at 1 MHz offset and the power consumption is 18 mW. The second VCO is tunable from 25.8 GHz to 30.5 GHz, corresponding to a tuning range of 17 %. The phase noise at center frequency for this design measures -109 dBc/Hz and the power consumption is 5.3 mW.
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| 2. |
- Zirath, Herbert, 1955, et al.
(författare)
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Newly developed chip sets for 60 GHz radio communication systems
- 2007
-
Ingår i: IEEE International Workshop on Radio-Frequency Integration Technology, RFIT 2007; Singapore; Singapore; 9 December 2007 through 11 December 2007. - 9781424413072 ; , s. 102-106
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Konferensbidrag (refereegranskat)abstract
- In order to reduce the manufacturing cost for future 60 GHz products, a high integration level is necessary. Recent results on mHEMT and pHEMT multifunctional receiver/transmitters realized at Chalmers University are reported. Multifunctional MMICs utilizing single ended, subharmonically pumped, balanced and single sideband mixers are reported. Other chipsets for additional applications such as radiometers are reported as well. Most recently, a 220 GHz integrated receiver utilizing mHEMT technology was demonstrated.
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