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Low-Voltage K-Band Divide-by-3 Injection-Locked Frequency Divider With Floating-Source Differential Injector.
- Source :
-
IEEE Transactions on Microwave Theory & Techniques . Jan2012, Vol. 60 Issue 1, p60-67. 8p. - Publication Year :
- 2012
-
Abstract
- This paper presents the design of a direct-injection divide-by-3 frequency divider operating at the K-band. The divider is implemented in a 0.18-\mu\ m CMOS process. The measured free-running frequency of the divider is 7.96 GHz. By utilizing a floating-source differential injector and without a varactor tuning in the divider core, the total locking range is 3.2 GHz with a power consumption of 8.28 mW from a supply voltage of 0.9 V. The total power consumption of the buffers is 9.54 mW from a supply voltage of 1.8 V. The measured phase noise of the divider is -141.3 dBc/Hz at 1-MHz offset when the input referred signal with a phase noise of -132.8 dBc/Hz at 1-MHz offset from 24 GHz. The phase-noise difference of 8.5 dB is close to the theoretical value of 9.5 dB for division-by-3. The output power of the divider is more than -11 dBm over the whole locking range. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 00189480
- Volume :
- 60
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Microwave Theory & Techniques
- Publication Type :
- Academic Journal
- Accession number :
- 70577304
- Full Text :
- https://doi.org/10.1109/TMTT.2011.2175239