{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

ece3113_A2009_hw6

# ece3113_A2009_hw6 - ECE 3113 Homework 6 ECE 3113...

This preview shows pages 1–2. Sign up to view the full content.

ECE 3113 Homework 6 1 ECE 3113 Introduction to RF Circuit Design Homework 6 Due: Tuesday, October 13, 2009 in class. Grading: 100 points, 2.5% of course grade. Solutions must be legible and show all work to receive credit. Reading: Chapter 8, Chapter 9 (pp. 485-510) Note: For some of the problems you may rely on MATLAB or Mathcad. Matching networks 1. [20 pts] Page 481, Problem 8.16. Use 0 50 L Z . Favor the solution that has uses an open-circuited stub with 4 S l . Biasing networks 2. [20 pts] Compute the resistor values for the following biasing network (similar to the one in the Practically Speaking section of Chapter 8). The npn RF transistor Q 3 is to be biased at 10 mA C I and CE 2 V V . For Q 3 , we also know that 3 100 and BE3 0.9 V V . The low-frequency pnp transistors Q 1 and Q 2 are characterized by 1 150 and BE1 0.7 V V   . The collector currents of Q 1 and Q 2 should be approximately equal to achieve the best temperature stability of bias. The power supply voltage is CC 3.6 V V . Use reasonable engineering approximations. R 1 R 3 R 2 Q 1 Q 2 V CC V CC I C Q 3 Power flow in an amplifier

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}