A low phase noise tri-band LO generation for Ku and E band radios for backhauling Point-to-Point applications
2016 IEEE Bipolar/BiCMOS Circuits and Technology Meeting (BCTM)(2016)
Abstract
This paper demonstrates a fully integrated tri-band LO generation system based a low phase noise 12 GHz sub-harmonic VCO and an injection locked frequency tripler (ILFT) as the signal source. The system generates simultaneously three outputs at f
0
, f
0
/2 and 2×f
0
, with maximum frequency of 36 GHz, 18 GHz and 72 GHz respectively. The system which is implemented in a 0.25-μm SiGe:C BiCMOS technology, has a phase noise of -107.72 dBc/Hz at 1 MHz offset from the 36 GHz signal measured at the f
0
-port. All outputs have a tuning range of 9.5% The in-band output power at the f
0
, f
0
/2 and 2×f
0
outputs is higher than 3 dBm, 0 dBm and -20 dBm respectively. The whole system draws 120 mA for a power supply of 2.5 V.
MoreTranslated text
Key words
phase noise,multiband millimeter wave frequency generation,subharmonic VCO,frequency tripler,injection locking
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