ECE 447 – Active Microwave Circuit Design

Spring 2021

Labs

Attendance to labs using Zoom is required. The lab instructor should be informed of any conflicts one week ahead, in order to arrange an alternate time to complete the lab.

Lab Section:	ABA	ABB	ABC
Time:	Wednesday 1-3:50 PM	Wednesday 6-8:50 PM	Thursday 6-8:50 PM
Zoom Link:	Zoom	Zoom	Zoom

Lab Policy

Lab manuals will be posted on Compass2G.

Lab reports are due on Compass2G at 11:59pm Champaign Time on the due date.

All the lab reports should be submitted to Compass2G, in .pdf format.

Late lab reports will not be accepted, unless under exceptional circumstances approved by the instructor.

Background and Prelab of a lab manual contains relevant theory and background information of the experiment, which must be done before entering a new lab session.

Students could come to ECEB 5076 during lab time to get in-person lab assistance from the TAs. Students are required to have a recent negative test and will be asked to show their Status Card on Safer Illinois.

In order to keep social distancing, only three students are allowed in the ECEB 5076 lab for an in-person lab, and should sign-up ahead of time on the Lab Signup Sheet. Each student could sign-up for a 90 minutes slot.

Lab Schedule

Lab	Topic	Date
Lab 0	Introduction	Week of 1/25
Lab 1	Time-domain reflectometry	Week of 2/01
Lab 2	Introduction to ADS	Week of 2/08
Lab 3	Nano VNA S-parameter measurements	Week of 2/22
Lab 4	Network analyzer measurements, board characterization, simulation models	Week of 3/01
Lab 5	Design, modeling, and construction of λ/4 bias stubs, blocking capacitors	Week of 3/08
Lab 6	Bias circuit design and implementation; Biased transistor S-parameter measurement	Week of 3/15
Lab 7	Stability analysis; addition of transistor and bias circuit to the board	Week of 3/29
Lab 8	Discussion of matching for maximum gain; design and optimization of matching networks	Week of 4/05, 4/19
Lab 9	Characterization of non-linear Characteristics & Noise Measurement	Week of 4/26

Lab Kit

The Lab Kit for ECE 447 contains:

Nano Vector Network Analyzer
Soldering Station. Must wear a safety glass while soldering.
DC Source
Student Board
Copper Tape
Circuit Elements
PERF Board

Lab Report Regrades

Submit a written description (word/pdf) explaining in detail why you think a correction should be made.

Please direct your lab report re-grading requests to the TAs.