1. G PARAMETER COMPILED BY- SAMRIDDHI SINGH 130080112048 SHIVIKA SINGH130080112053 SHLOKA NAUDIYAL130080112054

2. G- PARAMETERS  If V 1 and I 2 are chosen as independent variables, the two- port network equations may be written as  In matrix form, these equations are written as  The constants g 11, g 12, g 21, and g 22 are known as inverse hybrid parameters or g-parameters. The g-parameters are defined as follows by using Equations (10.9) and (10.10).  If I 2 = 0 the output port is open circuit.

3. Inverse hybrid parameter model (G-parameter)

4. open circuit input admittance open circuit forward voltage gain. If V 1 = 0 the input port is short circuit short circuit reverse current gain short circuit output impedance.  From the definitions of the g-parameters, it is seen that g 11 has the dimensions of admittance, g 21 and g 12 are dimensionless, and g 22 has the dimensions of impedance

5. R ELATIONSHIP BETWEEN H - PARAMETERS AND G - PARAMETERS

6. G PARAMETERS MEASUREMENT g11 = Open-circuit input admittance g12 = Short-circuit reverse current gain g21 = Open-circuit forward voltage gain g22 = Short-circuit output impedance

7. SYMMETRICITY CONDITION The condition for symmetricity is – V 1( at I 2 =0) = V 2 (at I 1=0) I 1 I 2 For G parameter to satisfy this condition- G = 1

8. RECIPROCITY CONDITION The condition for reciprocity is- I 1´ = I 2´ For G parameter to satisfy this condition- g 12 = -g 21

9. مدار 2 پائيز 86 دكتر توحيدخواه 8,114,085 EXAMPLE

10. مدار 2 پائيز 86 دكتر توحيدخواه 8,114,085 Example (cont.)

11. مدار 2 پائيز 86 دكتر توحيدخواه 8,114,085 Example (cont.)

12. مدار 2 پائيز 86 دكتر توحيدخواه 8,114,085 Example (cont.)

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