1. 1 ELECTRIC CIRCUITS F U N D A M E N T A L S O F CHARLES K. ALEXANDER MATTHEW N.O. SADIKU McGraw-Hill © The McGraw-Hill Companies, Inc. Fig. 19.1 (a) One-port network, (b) Two-port network.

2. 2 ELECTRIC CIRCUITS F U N D A M E N T A L S O F CHARLES K. ALEXANDER MATTHEW N.O. SADIKU McGraw-Hill © The McGraw-Hill Companies, Inc. Fig. 19.3 Determining of the z parameters: (a) finding z 11 and z 21, (b) finding z 12 and z 22

3. 3 ELECTRIC CIRCUITS F U N D A M E N T A L S O F CHARLES K. ALEXANDER MATTHEW N.O. SADIKU McGraw-Hill © The McGraw-Hill Companies, Inc. Fig. 19.5 (a) T equivalent circuit (for reciprocal case only), (b) general equivalent circuit.

4. 4 ELECTRIC CIRCUITS F U N D A M E N T A L S O F CHARLES K. ALEXANDER MATTHEW N.O. SADIKU McGraw-Hill © The McGraw-Hill Companies, Inc. Fig. 19.12 Determination of the y parameters: (a) finding y 11 and y 21, (b) finding y 12 and y 22.

5. 5 ELECTRIC CIRCUITS F U N D A M E N T A L S O F CHARLES K. ALEXANDER MATTHEW N.O. SADIKU McGraw-Hill © The McGraw-Hill Companies, Inc. Fig. 19.13 (a)  -equivalent circuit (for reciprocal case only), (b) general equivalent circuit.

6. 6 ELECTRIC CIRCUITS F U N D A M E N T A L S O F CHARLES K. ALEXANDER MATTHEW N.O. SADIKU McGraw-Hill © The McGraw-Hill Companies, Inc. Fig. 19.20 The h-parameter equivalent network of a two-port network.

7. 7 ELECTRIC CIRCUITS F U N D A M E N T A L S O F CHARLES K. ALEXANDER MATTHEW N.O. SADIKU McGraw-Hill © The McGraw-Hill Companies, Inc. Fig. 19.21 The g-parameter model of a two-port network.

8. 8 ELECTRIC CIRCUITS F U N D A M E N T A L S O F CHARLES K. ALEXANDER MATTHEW N.O. SADIKU McGraw-Hill © The McGraw-Hill Companies, Inc. Fig. 19.39 Series connection of two two-port networks.

9. 9 ELECTRIC CIRCUITS F U N D A M E N T A L S O F CHARLES K. ALEXANDER MATTHEW N.O. SADIKU McGraw-Hill © The McGraw-Hill Companies, Inc. Fig. 19.40 Parallel connection of two two-port networks

10. 10 ELECTRIC CIRCUITS F U N D A M E N T A L S O F CHARLES K. ALEXANDER MATTHEW N.O. SADIKU McGraw-Hill © The McGraw-Hill Companies, Inc. Fig. 19.41 Cascade connection of two two-port networks

11. 11 ELECTRIC CIRCUITS F U N D A M E N T A L S O F CHARLES K. ALEXANDER MATTHEW N.O. SADIKU McGraw-Hill © The McGraw-Hill Companies, Inc. Fig. 19.57 Transistor amplifier with source and load resistance

12. 12 ELECTRIC CIRCUITS F U N D A M E N T A L S O F CHARLES K. ALEXANDER MATTHEW N.O. SADIKU McGraw-Hill © The McGraw-Hill Companies, Inc. Fig. 19.61 LC ladder networks for lowpass filters of: (a) odd-order, (b) even-order.