Advanced_VCO_Design_using_Ansoft_DesignerAdvanced VCO Design using Ansoft Designer
Moriaki Ueno Ansoft Japan
Presentation #8
Agenda
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About Ansoft Designer VCO specification Device library making Resonant Circuit design Oscillator Circuit design Buffer amp design Total analysis Conclusion
About Ansoft Designer
Communication System Simulation
Integrated environment
High Frequency Circuit Simulation
Planar EM Electro Magnetic Simulation
VCO specifications
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We intend to design VCO for mobile communications.
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Oscillation frequency Output power Supply voltage Current consumption
1800MHz +/- 30MHz more than 4dBm 3V 8mA
VCO circuit
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Vcc
Circuit topology and power estimation
Oscillator Buffer Amp
Output port
Freq. control
Resonant Circuit
Power level ; -3dBm
S21 ; 9dB @2GHz Ic=3mA Power level ……
