ECE321/ECE521: RF Circuit Design

Instructor: Mohammad Hashmi
Teaching Assistants: Maktoomi, Priya

Lecture: Tue & Thu 11:00-12:30 in C13
Lab: Wed 14:00-15:30 in RF & Applied EM Lab

Office Hour: Mon (14:00 to 15:00) & Tue (14:00-15:00)
TA Office Hour: TBD

Course Outline and Policy


This course is designed for exposure of students to circuits and systems design techniques for radio communications leading towards the recent research in the domain of advanced radio technology.
In the first half of the course, students will be exposed to the fundamental concepts of passive and active circuits design at radio frequencies. These fundamental concepts require substantial understanding of transmission line theory and Smith chart and therefore this course will start with thorough discussion on these two topics. This half also includes training of students on the commercial software tool known as Advanced Design System (ADS). The students will have to subsequently do several design assignments using ADS.
In the second half of the course, students will be trained on more advanced topics such as Filter, Coupler, Power Divider, Power Combiner, and Linearizer. The students will then do projects (in a group of two) on their chosen topics and will present their findings in front of the class.

Postconditions On the completion of this course the students will be able to:
1. Understand the fundamental difference in the design methodologies of Analog Circuits and RF Circuits
2. Learn various techniques employed for the design of RF Circuits
3. Acquire hands-on skills to design simple blocks and components used in the Radio Communication Circuits
Evaluation Following components are part of the overall evaluation:
Home Assignment
Surprize Class Tests 16%
Mid-sem Exam 15%
Final Exam 15%
Project 30%

Home assignments are to be submitted by the due date.

Plagiarism is forbidden and will be seriously dealt with as per institute policy.

Attandance and Class Room Behavior 1. Students will be responsible for all course materials, announcements, notes etc. made during the regular class times.
2. Prompt arrival to the class is requested.
3. Smoking, drinking, and eating are prohibited in the class.
4. You need to switch off your Laptops, Phones, PDAs etc. in the class.


5-Aug-14 - first class


The text book for the course is:
1. RF Circuit Design by R. Ludwig and G. Bogdanov, 2nd Edition, Pearson International

In addition, following books may also be referred:
1. Microwave Engineering by D. M. Pozar, 4th Edition, John Wiley and Sonc Inc.
2. RF Circuit Design by R. Bowick, 2nd Ed., Newnes
3. Secrets of RF Circuit Design by Joseph J. Carr, 3rd Ed., McGraw Hill
4. IEEE Xplore, IEL etc.

Lecture Schedule and Assignment Calendar

Lecture Topics Additional Reading Assignments Remarks
  • Introduction (Lect_1-slide)

  • Transmission Line Introduction, Equivalent Ckt Representation, TL Parameters (Lect_2-slide)

Introductory Slide 

  • Design of Microstrip TL, Lossless Transmission Line (Lect_3-slide)

  • Terminated Lossless Transmission Lines (Lect_4-slide)

  • Reflection Coefficient Transformation, Power Considerations on a TL, Return and Insertion Loss, SWR, Sourced and Loaded TL, Lossy TL (Lect_5-slide)

  • Intro to Smith Chart (Lect_6-slide)

HA #1: Inside Lect-5 Slides

HA#1 Demo on 3rd Sept. (in RF Lab)
  • Admittance Transformation, Admittance Smith Chart, High Frequency Network Anaysis (Intro) (Lect_9-slide)

  • Lossless and Reciprocal Networks; The Scattering Matrix; The Transmission Matrix; Matched, Lossless and Reciprocal Devices (Lect_10-slide)
(HA #2)

(HA #2 Solution)

HA#2 Demo on 10th Sept. (in RF Lab)

(HA #3)

(HA #3 Solution)

HA#3 Due on 17th Sept.


                        ------XXXXX Mid-Sem Week XXXXX------


  • Stub Matching, Double-Stub Matching, Quarter Wave Impedance Transformer, Multiple Reflection Viewpoint, Theory of Small Reflections (Lect_15-slide)


(HA #4, 5, and 6)

The final assignments are due on 10th Nov.(Monday)
  • Power Dividers and Couplers, Basic Properties, Power Divider - Design Aspect (Lect_17-slide)

  • Circulator, Wilkinson Power Divider (Theory and Analysis) (Lect_18-slide)


                        ------XXXXX Diwali Break XXXXX------



                      ------XXXXX No Cass due to TT Adjustments XXXXX------



If you have a question, Please follow the sequence before you reach the bottom of the list:

  1. Search for the answer yourself. In most cases the answer is available on this page or on assignment handouts
  2. Ask your friend in class
  3. Ask your TAs
  4. Ask instructor in lecture
  5. Ask instructor in office hours
  6. Send your TA email
  7. Send instructor email. Note that, this is the worst scenario.