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Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.1 (p. 223) A lossless network matching an arbitrary load.

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Presentation on theme: "Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.1 (p. 223) A lossless network matching an arbitrary load."— Presentation transcript:

1 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.1 (p. 223) A lossless network matching an arbitrary load impedance to a transmission line.

2 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.2 (p. 223) L-section matching networks. (a) Network for z L inside the 1 + jx circle. (b) Network for z L outside the 1 + jx circle.

3 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.3a (p. 226) Solution to Example 5.1. (a) Smith chart for the L- section matching networks.

4 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.3b (p. 227) (b) The two possible L-section matching circuits. (c) Reflection coefficient magnitudes versus frequency for the matching circuits of (b).

5 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure on page 228.

6 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.4 (p. 229) Single-stub tuning circuits. (a) Shunt stub. (b) Series stub.

7 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.5a (p. 230) Solution to Example 5.2. (a) Smith chart for the shunt-stub tuners.

8 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.5b (p. 231) (b) The two shunt-stub tuning solutions. (c) Reflection coefficient magnitudes versus frequency for the tuning circuits of (b).

9 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.6a (p. 233) Solution to Example 5.3. (a) Smith chart for the series-stub tuners.

10 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.6b (p. 232) (b) The two series-stub tuning solutions. (c) Reflection coefficient magnitudes versus frequency for the tuning circuits of (b).

11 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.7 (p. 236) Double-stub tuning. (a) Original circuit with the load an arbitrary distance from the first stub. (b) Equivalent-circuit with load at the first stub.

12 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.8 (p. 236) Smith chart diagram for the operation of a double-stub tuner.

13 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.9a (p. 238) Solution to Example 5.4. (a) Smith chart for the double-stub tuners.

14 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.9b (p. 239) (b) The two double-stub tuning solutions. (c) Reflection coefficient magnitudes versus frequency for the tuning circuits of (b).

15 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.10 (p. 241) A single-section quarter-wave matching transformer. at the design frequency f 0.

16 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.11 (p. 242) Approximate behavior of the reflection coefficient magnitude for a single-section quarter-wave transformer operating near its design frequency.

17 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.12 (p. 243) Reflection coefficient magnitude versus frequency for a single-section quarter- wave matching transformer with various load mismatches.

18 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.13 (p. 244) Partial reflections and transmissions on a single-section matching transformer.

19 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.14 (p. 245) Partial reflection coefficients for a multisection matching transformer.

20 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.15 (p. 250) Reflection coefficient magnitude versus frequency for multisection binomial matching transformers of Example 5.6 Z L = 50Ω and Z 0 = 100Ω.

21 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.16 (p. 251) The first four Chebyshev polynomials T n (x).

22 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.17 (p. 255) Reflection coefficient magnitude versus frequency for the multisection matching transformers of Example 5.7.

23 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.18 (p. 256) A tapered transmission line matching section and the model for an incremental length of tapered line. (a) The tapered transmission line matching section. (b) Model for an incremental step change in impedance of the tapered line.

24 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.19 (p. 257) A matching section with an exponential impedance taper. (a) Variation of impedance. (b) Resulting reflection coefficient magnitude response.

25 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.20 (p. 258) A matching section with a triangular taper for d(In Z/Z 0 /dz. (a) Variation of impedance. (b) Resulting reflection coefficient magnitude response.

26 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.21 (p. 260) Solution to Example 5.8. (a) Impedance variations for the triangular, exponential, and Klopfenstein tapers. (b) Resulting reflection coefficient magnitude versus frequency for the tapers of (a).

27 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.22 (p. 262) The Bode-Fano limits for RC and RL loads matched with passive and lossless networks (ω 0 is the center frequency of the matching bandwidth). (a) Parallel RC. (b) Series RC. (c) Parallel RL. (d) Series RL.

28 Microwave Engineering, 3rd Edition by David M. Pozar Copyright © 2004 John Wiley & Sons Figure 5.23 (p. 263) Illustrating the Bode-Fano criterion. (a) A possible reflection coefficient response. (b) Nonrealizable and realizable reflection coefficient responses.


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