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24 GHz InGaP-GaAs HBT push-push VCO with broadband tuning range

Rumen Kozhuharov (Institutionen för mikroteknologi och nanovetenskap, Mikrovågselektronik ; GigaHertz Centrum) ; Dan Kuylenstierna (Institutionen för mikroteknologi och nanovetenskap, Mikrovågselektronik ; GigaHertz Centrum) ; Herbert Zirath (Institutionen för mikroteknologi och nanovetenskap, Mikrovågselektronik ; GigaHertz Centrum)
Proceedings of the 4th European Microwave Integrated Circuits Conference p. 242-245. (2009)
[Konferensbidrag, refereegranskat]

A push-push topology MMIC microstrip VCO with output taken from tank common-node has been designed and implemented in an InGaP/GaAs HBT process. It provides an output at second harmonic at 24 GHz and differential output for PLL at 12 GHz. The oscillator shows an excellent phase noise performances of -93 dBc/Hz at the fundamental frequency and -89 dBc/Hz at the second harmonic output at 100 kHz offset from the carrier. Different doping profile varactors are investigated and VCO tuning range larger than 35% is obtained.


Article number 5296025



Denna post skapades 2010-01-15. Senast ändrad 2016-07-13.
CPL Pubid: 107863