Passives

Passives - MMIC Design and Technology Passive Elements...

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Letcture 4 Passive Elements MMIC Design and Technology Passive Elements Instructor Dr. George Kirkman
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Letcture 4 Passive Elements Types of Passive Elements Resistors Capacitors Transmission Lines Inductors Couplers
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Letcture 4 Passive Elements Resistor
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Letcture 4 Passive Elements Types of Resistors Thin Film NiCr 50 /sq Bulk GaAs 700 /sq Figures from Text
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Letcture 4 Passive Elements Resistor Equivalent Circuit
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Letcture 4 Passive Elements Capacitor d A C r ε 0 = mm F x m F x r 15 12 0 10 85 . 8 10 85 . 8 - - = = = 13 GaAs Typical chip has d = 0.1mm What is C in pF/mm 2
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Letcture 4 Passive Elements MIM Capacitor Thin Dielectric layer to produce high values of capacitance 1200pF/mm 2
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Letcture 4 Passive Elements Microstrip http://mcalc.sourceforge.net/ Im Re Im Re tan ε δ = + = j GaAs = = tan r 13 0.0016 @ 10GHz
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Letcture 4 Passive Elements Effective Dielectric Constant
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Letcture 4 Passive Elements Impedance
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Letcture 4 Passive Elements Wavelength λ r m m c c f c ε λ 0 = = In GaAs sec 10 3 . 8 13 9 0 cm x c c m = = At 10GHz f = 0.83 cm
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Passives - MMIC Design and Technology Passive Elements...

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