Senior Capstone Project: Fast Tuning Synthesizer Member: Nathan Roth Advisors: Dr. Huggins Dr....
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Senior Capstone Project:Fast Tuning Synthesizer
Member: Nathan RothAdvisors: Dr. Huggins
Dr. ShastryMr. James Jensen
Date: May 4, 2004
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Presentation Outline
• Background Information
• Project Summary
• Functional Description
• Detailed Description
• Major Tasks
• Problems Encountered
• Improvements
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Background Information
• Definition of a frequency synthesizer
• Uses– Communication– Electronic Warfare
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Project Summary
• Creation of a frequency synthesizer– Use of direct synthesis approach
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Project Summary
• System Characteristics– Output Frequencies of 3650, 3700, 3850,
3900, 4450, 4500, 4650, and 4700 MHz– Output Power of 0 dBm, ± 3 dB– Output Spurs < -45 dBc– Tuning Time < 500 ns, 200 ns if possible– Use of an External 100 MHz Reference Signal
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Functional Description
FastTuning
FrequencySynthesizer
3.6 – 4.6 GHz
100 MHz Reference
D2
D1
D0
Digital Input Command
Desired Output
Frequency
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Detailed Description
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Detailed Description
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Detailed Description
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Detailed Description
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Detailed Description
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Detailed Description
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Detailed Description
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Detailed Description
• Amplifier
• Multiplier– Increases Frequency (Multiplication)
• Mixer– Sum of Input Frequencies– Difference of Input Frequencies
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Detailed Description
• Switch
• Filter
• Prescaler– Decreases Frequency (Division)
• Digital Logic (GAL)
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Detailed Description
100 MHz
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Detailed Description
200 MHz
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Detailed Description
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Detailed Description
1400 + 200 = 1600 MHz1400 – 200 = 1200 MHz
200 MHz
1400 MHz
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Detailed Description
1200 MHz
1600 MHz1200 MHz
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Detailed Description
1200 MHz 300 MHz
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Detailed Description
1700 MHz1100 MHz300 MHz
1400 MHz
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Detailed Description
1700 MHz1100 MHz
1100 MHz
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Detailed Description
1100 MHz 275 MHz
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Detailed Description
275 MHz
1125 MHz
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Detailed Description
1125 MHz 4500 MHz
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Major Tasks
• Filter Design and Fabrication
• Component Selection and Ordering
• Printed Circuit Board Design and Fabrication
• PCB Stuffing
• Modular Testing
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Filter Design and Fabrication
• Designed and Simulated Ideal Chebyshev Filters– Used Insertion Loss Method– Developed Low-Pass Filter Prototype – Transformed to Band-Pass Filter
• Added Parasitic Effects– Real Component Values– Real Inductor Responses– Microstrip Transmission Effects– Via Connections
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Filter Design and Fabrication
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Filter Design and Fabrication
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Filter Design and Fabrication
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Filter Design and Fabrication
•Dark Blue = Ideal
•Purple = S21 Simulated
•Red = S11 Simulated
•Aqua Blue = S21 Actual
•Blue/Purple = S11 Actual
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Filter Design and Fabrication
•Dark Blue = Ideal
•Purple = S21 Simulated
•Red = S11 Simulated
•Aqua Blue = S21 Actual
•Blue/Purple = S11 Actual
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PCB Design and Fabrication
• Created PCB Layouts for Filter Boards
• Fabricated, Populated, and Tested Filter Boards
• Developed Modular Layout Plan
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PCB Design and Fabrication
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PCB Design and Fabrication
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PCB Design and Fabrication
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PCB Design and Fabrication
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PCB Design and Fabrication
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PCB Design and Fabrication
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Modular Testing
Filter
Simulated Center
Frequency
Measured Center
FrequencySimulated Bandwidth
Measured Bandwidth
Filter 1 1200 MHz 1205.5 MHz 120 MHz 125 MHz
Filter 2 1000 MHz 977.5 MHz 120 MHz 115 MHz
Filter 3 1183 MHz 1148.5 MHz 195 MHz 167 MHz
Filter 4 962 MHz 932 MHz 195 MHz 220 MHz
Filter 5 1183 MHz 1181 MHz 108 MHz 112 MHz
Filter 6 982 MHz 990.2 MHz 202 MHz 201 MHz
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Modular Testing
-10 dBm
-50 dBm
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Modular Testing
LO Input = 1400 MHz
IF Input = 200 MHz
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Modular Testing
Input = 1200 MHz
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Modular Testing
Resolution Module 3 – 1200 MHz
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Modular Testing
Resolution Module 3 – 1200 MHz
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Modular Testing
Resolution Module 3 – 1200 MHz
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Modular Testing
Resolution Module 3 – 1200 MHz
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Modular Testing
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Modular Testing
• 312 ns ‘off’• 148 ns ‘on’
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Problems Encountered
• Non-Ideal Components
• Fabrication
• Grounding Issues
• ‘Potato Chipping’
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Possible Improvements
• Implement a Phase-Lock Loop
• Use Distributed Elements
• MMIC Design
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Appreciation
Matt Kaiser
Kiran Reddy
Dave Miller
Bala Sundaram
Neeta Mehta
Zaheer Shaik
Krishna Katragadda
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Fast Tuning Synthesizer
• Any questions?
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Power Analysis
Specifications• Amplifier (3)
– 5 Volt– 46 mA
• Mixer (3)– 3 Volt– 11 mA
Prescaler (2)– 3 Volt– 8 mA
• Specified Power– 837 mW
• Recorded Power– 930 mW
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Bill of MaterialsPart Number Maker Description Quantity Price Total
PriceHMC435MS8G Hittite SPDT, Hi Isolation, DC- 4
GHz15 $1.10 $16.50
PE3512 Peregrine Divide By 4, DC - 1.5 2 $2.75 $5.50
MAX2671 Maxim IC 400 MHz To 2.5 GHz Upconverter Mixers
3 $0.76 $2.28
SYK-2R Mini-Circuits Frequency Doublers, 10-1000 MHz
1 $29.95 $29.95
AG604-89 WJ Ingap HBT Gain Block 2 $1.48 $2.96
$0.97 $2.91HMC315 Hittite GaAs InGaP HBT MMIC Darlington Amplifier, DC -
7.0 GHz
3
$0.40 $1.20
MSA-2743 Agilent
ABA-53563 Agilent 3.5 GHz Broadband Silicon RFIC Amplifier
3
Cascadable Silicon Bipolar Gain Block MMIC
Amplifier
1
$2.35 $2.35
$2.94 $2.94
$0.94 $0.94
HMC188MS8 Hittite Passive Frequency Doubler, 1.25 - 3.0 GHz Input
1
HMC187MS8 Hittite Passive Frequency Doubler, 0.85 - 2.0 GHz
1
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Bill of Materials
Kit 124A-2 Coilcraft 0603CS Chip Inductors: 25 values from 1.6 nH - 30
nH, 2% Tolerance
1 $80.00 $80.00
Substrate Rogers Corporation
RO4003C, 20 mil thick, 1.4 mil copper
2 $32.25 $64.50
142-0901-811 Johnson Components
Male to Male SMA 50 Ohm Connects
25 $11.41 $285.25
142-0701-631 Johnson Components
4 Hole Flange Mount Jack Receptacle
20 $5.17 $103.40
142-0711-841 Johnson Components
End Launch Jack Receptacle
20 $5.81 $116.20
Various - RF Chip Capacitors and Resistors
- $10.00 $10.00
GAL26CV12 Lattice Semiconductor
High Performance General Array Logic
1 $7.80 $7.80
SN74F04 Texas Instruments
Hex Inverter 1 $1.00 $1.00
Total $735.68
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Input Module
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Resolution Modules
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Basis Frequency Modules
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Switch Selection Module
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Output Module
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Laboratory Work - Review
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Laboratory Work
•Dark Blue = Ideal
•Purple = S21 Simulated
•Red = S11 Simulated
•Aqua Blue = S21 Actual
•Blue/Purple = S11 Actual
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Laboratory Work
•Aqua Blue = Ideal
•Dark Blue = S21 Simulated
•Red = S11 Simulated
•Purple = S21 Actual
•Blue/Purple = S11 Actual
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Laboratory Work
•Aqua Blue = Ideal
•Red = S21 Simulated
•Dark Blue = S11 Simulated
•Purple = S21 Actual
•Blue/Purple = S11 Actual
![Page 67: Senior Capstone Project: Fast Tuning Synthesizer Member: Nathan Roth Advisors: Dr. Huggins Dr. Shastry Mr. James Jensen Date:May 4, 2004.](https://reader030.fdocuments.us/reader030/viewer/2022032704/56649d575503460f94a35813/html5/thumbnails/67.jpg)
Laboratory Work
•Light Blue = Ideal
•Red = S21 Simulated
•Aqua Blue = S11 Simulated
•Dark Blue = S21 Actual
•Purple = S11 Actual
![Page 68: Senior Capstone Project: Fast Tuning Synthesizer Member: Nathan Roth Advisors: Dr. Huggins Dr. Shastry Mr. James Jensen Date:May 4, 2004.](https://reader030.fdocuments.us/reader030/viewer/2022032704/56649d575503460f94a35813/html5/thumbnails/68.jpg)
Laboratory Work
•Aqua Blue = Ideal
•Purple = S21 Simulated
•Red = S11 Simulated
•Dark Blue = S21 Actual
•Light Blue = S11 Actual
![Page 69: Senior Capstone Project: Fast Tuning Synthesizer Member: Nathan Roth Advisors: Dr. Huggins Dr. Shastry Mr. James Jensen Date:May 4, 2004.](https://reader030.fdocuments.us/reader030/viewer/2022032704/56649d575503460f94a35813/html5/thumbnails/69.jpg)
Modular Testing
Resolution Module 1 – 1200 MHz
![Page 70: Senior Capstone Project: Fast Tuning Synthesizer Member: Nathan Roth Advisors: Dr. Huggins Dr. Shastry Mr. James Jensen Date:May 4, 2004.](https://reader030.fdocuments.us/reader030/viewer/2022032704/56649d575503460f94a35813/html5/thumbnails/70.jpg)
Modular Testing
Resolution Module 1 – 1400 MHz
![Page 71: Senior Capstone Project: Fast Tuning Synthesizer Member: Nathan Roth Advisors: Dr. Huggins Dr. Shastry Mr. James Jensen Date:May 4, 2004.](https://reader030.fdocuments.us/reader030/viewer/2022032704/56649d575503460f94a35813/html5/thumbnails/71.jpg)
Modular Testing
Resolution Module 2 – 1200 MHz
![Page 72: Senior Capstone Project: Fast Tuning Synthesizer Member: Nathan Roth Advisors: Dr. Huggins Dr. Shastry Mr. James Jensen Date:May 4, 2004.](https://reader030.fdocuments.us/reader030/viewer/2022032704/56649d575503460f94a35813/html5/thumbnails/72.jpg)
Modular Testing
Resolution Module 2 – 1400 MHz
![Page 73: Senior Capstone Project: Fast Tuning Synthesizer Member: Nathan Roth Advisors: Dr. Huggins Dr. Shastry Mr. James Jensen Date:May 4, 2004.](https://reader030.fdocuments.us/reader030/viewer/2022032704/56649d575503460f94a35813/html5/thumbnails/73.jpg)
Modular Testing
Resolution Module 3 – 1400 MHz
![Page 74: Senior Capstone Project: Fast Tuning Synthesizer Member: Nathan Roth Advisors: Dr. Huggins Dr. Shastry Mr. James Jensen Date:May 4, 2004.](https://reader030.fdocuments.us/reader030/viewer/2022032704/56649d575503460f94a35813/html5/thumbnails/74.jpg)
Modular Testing