RF器件设计.ppt

52-5120 Training Course - Passive Component Design -Coupler/Power divider Prepare by: Peter Huang Date: 07/21/2005 Contents Directional Coupler Measuring Coupler Directivity Lenge Coupler Lenge Coupler example The Wilkinson Power Divider The Quadrature (90o) Hybrid Homework exercise 2 Directional Coupler(1) Directional Coupler(2) Directional Coupler(3) Directional Coupler(4) Measuring Coupler Directivity Lenge Coupler Lenge Coupler-example Lenge Coupler Simulation The Wilkinson Power Divider The Quadrature (90o) Hybrid Homework exercise 2 Design Directional Coupler Design Regarding to your sustaining product to design one directional coupler By paper or power point References David M. Pozar, “Microwave Engineering” .tw/chu/e-medi@waves.htm .tr/~microwave/programs/magnetic/dcoupler/dcoupler.htm http://www.rfic.co.uk RF, RFIC Microwave Theory, Design ISO 9001 Certified MTI Input Through Isolated Coupled 2 21 Directional Coupler Design Step: Step 1: According to “Coupling Factor” to decide “Even mode Impedance” and “Odd mode Impedance” Coupling factor decide by designer Even mode Impedance Odd mode Impedance Step 2: According to “Even mode Impedance” and “Odd mode Impedance” to calculate the Wide and Gap width of Coupling line .tr/~microwave/programs/magnetic/dcoupler/dcoupler.htm Step 3: To design the Length of parallel line Odd mode Wavelength Even mode Wavelength the Length of parallel line Step 4: According to w, s, and l to simulation the directional coupler by Microwave Office2000 Load Pc C Vi,Pi Directivity : D Sliding Load Pmax, Pmin C/D Vi,Pi C 100 ohm 1 2 3 Or Design Divider/ Quadrature (90o) Hybrid Regarding to your sustaining product to design one divider or 90 hybrid By paper or power point ISO 9001 Certified MTI