RCE-207 Radio Signal Measurements (ÀüÆÄ½ÅÈ£°èÃø)

 

1. Class Information

- Grading: Attendance 10%, Homework 30%, Mid-term exam 30%, Final exam 30%

- Textbooks:

     A. Basu, An Introduction to Microwave Measurements, Boca Raton, FL: CRC Press, 2015

     R. W. Larsen, LabVIEW for Engineers, Upper Saddle River, NJ: Pearson Education, 2011

     S. Dubey, N. Narang, P. S. Negi, and V. N. Ojha, LabVIEW Based Automation Guide for Microwave Measurements, Singapore: Springer Nature     Singapore, 2018

- References:

     Six-hour course on LabVIEW, http://ece-research.unm.edu/jimp/415/labview/ ; lots of files including a pdf textbook

     National Instruments, Getting Started with LabVIEW, 2013

- Design Projects:

     M. Martinez, Design and implementation of a compact vector network analyzer, M.S. thesis, University of Wisconsin-Madison, 2012

     Mini VNA Tiny, http://miniradiosolutions.com/54-2/

     Used VNA on ebay, https://www.ebay.com/sch/i.html?_nkw=vector%20network%20analyser%20vna

 

2. Weekly Lectures

Week-01: S-parameters and Microwave Components

I. Purdue ECET 364 - Fundamentals of Electromagnetics

"S Parameters", https://www.youtube.com/watch?v=inH_BYQ6feM (14 min.)

(Homework)

1.1 Classify two port scattering parameters S11, S12, S21, and S22 into the

          a) reflection coefficient

          b) voltage gain

1.2 Define a two-port reciprocal network using the scattering parameters.

 

II. Purdue ECET 364 - Fundamentals of Electromagnetics

"S Parameter Example", https://www.youtube.com/watch?v=5aISfafWEIQ (12 min.)

(Homework)

1.3 A resistor of PIN/100 (ohms) is parallelly connected in the middle of a quarter-wave transmission line with characteristic impedance of 50 ohms. Find

     a) S11

     b) S21

 

III. Purdue ECET 364 - Fundamentals of Electromagnetics

"Return Loss and Insertion Loss", https://www.youtube.com/watch?v=qLsW-utQD6M (10 min.)

(Homework)

1.4 For S11 = PIN /104 exp(j0.2), find the return loss RL (dB).

     (PIN: your id number defined in '1. Class Information')

1.5 For the insertion loss IL = PIN/103 dB, find |S21|.

 

IV. "What is VSWR: Voltage Standing Wave Ratio", https://www.youtube.com/watch?v=BSa051lWB_c (6 min.)

(Homework)

1.6 For |S11| = |¥Ã| = – 10 dB, find VSWR.

 

V. Rohde Schwarz, "Understanding the Smith Chart", https://www.youtube.com/watch?v=rUDMo7hwihs (10 min.)

(Homework)

1.7 For S11 = PIN/104 exp(j45¡Æ), find Zin using the Smith chart.

 

VI. The Signal Path

"Tutorial on Microwave and mm-Wave Components and Modules", https://www.youtube.com/watch?v=6kwamCh1QkE (59 min.)

(Homework)

1.8 What is the maximum operating frequency of the SMA connector?

1.9 What is the lower limit of the operating frequency of a resistive power divider?

1.10 Give a circuit representation of a bias T.

 

Study materials:

     Note01-S-parameters and microwave components

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Week-02: Traditional measurement techniques

A. Textbook Chapter 3 (ch3.pdf)

(Homework)

     2.1 Study Chapter 3 and write down keywords.

B. Video lectures

I. RF power measurement, https://www.youtube.com/watch?v=FVaiWzJSvNU (6:42)

(Homework)

     2.2a Find the datasheet of the AD8318 chip used in the power meter and write the chip's features.

     2.2b Write down the features of the power meter RF Power 8000 shown in the video.

II. Transfer function measurement, https://www.youtube.com/watch?v=OCpV0dSBv0w (7:27)

(Homework)

     2.4a Explain why S21 = 2(V2)/V_source.

     2.4b Draw the block diagram of the instrument (Bode 100) used for S21 (transfer function) measurement in the video.

III. Measurement of VSWR, https://www.youtube.com/watch?v=uFfYBE0VnEY (5:05)

(Homework)

     2.5a Draw the block diagram of a slotted line VSWR measurement system shown in the lecture video.

     2.5b Explain the double minimum method.

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Week-03: Vector network analyzer

I. Network analyzer & de-embedding, https://www.youtube.com/watch?v=2P2HjgBLfKQ

(Homework)

3.1 Draw a block diagram of a two-port network analyzer.

3.2 What is the calibration of a network analyzer.

3.3 What is the SOLT calibration.

3.4 What is the de-embedding in the network analyzer measurement.

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Week-04: Spectrum analyzer

I. Spectrum analyzer basics, https://www.youtube.com/watch?v=4Y6ji0QBsww

Reading: Spectrum analyzer basics

(Homework)

Problem 4.1 Draw a block diagram of a spectrum analyzer and explain its theory of operation.

 

II. Spectrum analyzer resolution bandwidth and video bandwidth, https://www.youtube.com/watch?v=Ffhs9Ny03lM&t=7s

(Homework)

Problem 4.2 Explain the resolution bandwidth and the video bandwidth of a spectrum analyzer.

 

III. Spectrum analyzer zero-span operation, https://www.youtube.com/watch?v=Lp6sT-n55N4&t=16s

(Homework)

Problem 4.3 What waveform is displayed when you measure a signal on a spectrum analyzer with zero-span setting?

 

IV Spectrum analzer do's and dont's, https://www.youtube.com/watch?v=E6P-R0C9ro0&t=138s

(Homework)

Problem 4.4 What is the typical values of maximum RF power and DC voltage that can safely be applied to a spectrum analyzer?

Problem 4.5 How to automatically adjust the resolution bandwidth in spectrum analyzer measurements?

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Week-05: Noise measurement

I. Noise figure

(Homework)

Problem 5.1 Amplifer: noise figure = 5dB

     At amp input: signal = -100dBm, noise = -80dBm

     At amp output: signal = -80dBm

1) What is the gain of the amp?

2) What is the noise power at the amp output?

 

II. Noise figure measurement

(Homework)

Problem 5.2 Summarize the lecture

 

III. Phase noise

(Homework)

Problem 5.3 What is the meaning of a phase noise specification: -150dBc/Hz @ 1MHz offset?

    

IV. Phase noise measurement

(Homework)

Problem 5.4 Summarize the lecture.

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Week-06: LabVIEW basics

I. LabVIEW basics: 1, 2, 3, 4, 5, 6, 7

II. RC circuit measurement with LabVIEW

Notes: LabVIEW overview, LabVIEW introduction

References: Larsen book contents, Larsen Chapter 1, NI Getting started with LabVIEW

(Homework)

Problem 6.1 Make an RC circuit measurement program with LabVIEW as shown in Lecture-06-2.

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Week-07: Data acquisition with LabVIEW

I. Getting started with NI myDAQ, https://www.youtube.com/watch?v=oe8_GUMVFfU

II. Data acquisition with NI myDAQ: DAQ Assistant, https://www.youtube.com/watch?v=72157fx31vw

III. Building a graphical user interface (GUI) for data acquisition applications, https://www.youtube.com/watch?v=JtwSMDa1Dc4

IV. Basic data acquisition with LabVIEW, https://www.youtube.com/watch?v=GBhJk5Tnshc

Notes: Larsen Chapter 5, DAQ with LabVIEW by Halvorsen

(Homework)

Problem 7.1 Make a voltage measurement GUI with LabVIEW.

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Week-08: Graphing with LabVIEW

I. LabVIEW plotting

Notes: Larsen Ch6 & Ch7, LabVIEW charts, graphs and files

(Homework)

Problem 8.1 Make a LabVIEW XY plot.

(Mid-term exam.)

1. Define the noise figure.

2. Explain how to measure the noise figure of a device.

3. Define the phase noise.

4. Explain how to measurfe the phase noise of a device.

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Week-09: Data analysis and programming in LabVIEW

Lecture: Simulation in LabVIEW

Notes: Larsen Ch8 & Ch9, LabVIEW for control design & simulation

(Homework)

Problem 9.1 Make a VI program with LabVIEW.

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Week-10: Project-01 VNA design 1

I. VNA Basics: 1, 2, 3, 4

II. VNA Measurements: 1, 2, 3, 4

Study material: Basu Ch-4 Vector Network Analyzer

(Homework)

Problem 10.1 Summarize the lecture.

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Week-11: Project-01 VNA design 2

I. VNA de-embedding: 1

II. VNS time domain measurements: 1

III. VNA material properties measurements: 1

(Homework)

Problem 11.1 Summarize the lecture.

Study material: Basu Ch-4 Vector Network Analyzer

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Week-12: Project-02 Impedance analyzer design 1

I. Measurement with impedance analyzer: 1, 2, 3

II. Impedance analyzer design with Analog Devices IC solutions: 1, 2

II. Electrochemical impedance spectroscopy: 1

(Homework)

Problem 12.1 Summarize the lecture.

Study material: Hioki, Impedance Measurement Handbook, 2018

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Week-13: Project-02 Impedance analyzer design 2

I. Impedance analyzer example Bode 100

(Homework)

Problem 13.1 Summarize the lecture

Study material: Rasalingam(18-thesis)

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Week-14: Project-03 Spectrum analyzer design 1

I. Spectrum analyzer basics

II. Signal analyzer fundamentals

III. Spectrum analyzer design theory

IV. Spectrum analyzer design walk-thorugh

(Homework)

Problem 14.1 Summarize the lecture

Study material: Basu, Chapter 5 Spectrum Analyzer

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Week-15: Project-03 Spectrum analyzer design 2

I. Teardown, repair and analysis of an Anritsu MS2721B 7.1GHz portable spectrum analyzer

II. Agilent N9344C 20GHz spectrum analyser teardown

III. USB spectrum analyzer 35MHz to 4.4GHz review & musings

IV. IMS2013 modern RF measurements and how they drive spectrum analyzer digital IF processor design

(Homework)

15.1 Summarize the lecture

(Final Exam) Draw a simplified block diagram of the following systems.

1. A vector network analzyer

2. An impedance analzer.

3. A spectrum analyzer

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Lecture References:

[1] UIUC, ECE-451 Advanced Microwave Measurements, Jose Schutt-Aine

http://emlab.illinois.edu/ece451/notes/index.html