Senior Capstone Project: Fast Tuning Synthesizer

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Senior Capstone ProjectFast Tuning Synthesizer

• Member Nathan Roth
• Advisors Dr. Huggins
• Dr. Shastry
• Mr. James Jensen
• Date March 4, 2004

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Presentation Outline

• Project Summary
• Functional Description
• Detailed Description
• Review of Previous Work
• Laboratory Results
• Semester Schedule

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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 lt -45 dBc
• Tuning Time lt 500 ns, 200 ns if possible
• Use of an External 100 MHz Reference Signal

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Functional Description
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Detailed Description
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Input Module
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Input Module
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Resolution Modules
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Resolution Modules
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Basis Frequency Modules
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Basis Frequency Modules
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Switch Selection Module
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Switch Selection Module
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Output Module
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Output Module
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Laboratory Work - Review

• 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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Laboratory Work - Review
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Laboratory Work - Review
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Laboratory Work - Review
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Laboratory Work - Review
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Laboratory Work - Review
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Laboratory Work - Review
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Laboratory Work - Review

• Determined and Ordered Necessary Parts

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Laboratory Work

• Created PCB Layouts for Filter Boards
• Fabricated, Populated, and Tested Filter Boards
• Developed Modular Layout Plan
• Currently Creating PCB Layouts for Components

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Laboratory Work
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Laboratory Work
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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

• 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

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Laboratory Work

• Light Blue Ideal
• Red S21 Simulated
• Aqua Blue S11 Simulated
• Dark Blue S21 Actual
• Purple S11 Actual

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Laboratory Work

• Aqua Blue Ideal
• Purple S21 Simulated
• Red S11 Simulated
• Dark Blue S21 Actual
• Light Blue S11 Actual

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Laboratory Work
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Laboratory Work
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Preliminary Spring Semester Schedule
Week Task
Winter Break Research and understand phase locked loop (PLL) theory and circuitry
Winter Break Begin design of PLL system
Winter Break Finalize filter design and simulations
Winter Break Begin implementing as parts arrive
Winter Break Full scale simulation of direct synthesis (DS) system
Jan 19 25 Design of PLL system
Jan 19 25 DS system simulation
Jan 26 Feb 1 Design PLL system
Jan 26 Feb 1 DS system simulation
Jan 26 Feb 1 Have all filters tested and built
Feb 2 8 Complete design of PLL system
Feb 2 8 DS system simulation
Feb 9 15 Simulation of PLL system
Feb 9 15 Complete DS system Simulation
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Preliminary Spring Semester Schedule
Feb 9 15 Simulation of PLL system
Feb 9 15 Complete DS system Simulation
Feb 16 22 Simulation of PLL system
Feb 23 29 Complete simulation of PLL system
March 1 7 Components Arrive, Begin Soldering, Testing, and Biasing Components
March 8 14 Physical implementation of DS
March 15 21 Physical implementation of DS, Spring Break?
March 22 28 Begin DS full scale testing
March 29 April 4 DS full scale testing
April 5 11 Complete DS full scale testing
April 12 18  
April 19 25 Student Expo
April 26 May 2 Present successful findings
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Revised Spring Semester Schedule
March 1 7 Generate PCB Layout for Components
March 8 14 Fabricate PCBs
March 15 21 Spring Break/Fabricate PCBs
March 22 28 Solder Components to PCBs
March 29 April 4 System Testing
April 5 11 System Testing
April 12 18  System Testing
April 19 25 System Testing/Student Expo
April 26 May 2 Present successful findings
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Delay Line Correlator
Voltage output proportional to cos (wT)
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Fast Tuning Synthesizer

• Any questions?

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Laboratory Work - Review
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Preliminary Bill of Materials
Part Number Maker Description Qty Price Total Price
HMC435MS8G Hittite SPDT, Hi Isolation, DC- 4 GHz 15 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
HMC188MS8 Hittite Passive Frequency Doubler, 1.25 - 3.0 GHz Input 1 2.94 2.94
HMC187MS8 Hittite Passive Frequency Doubler, 0.85 - 2.0 GHz 1 2.35 2.35
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Preliminary Bill of Materials
MSA-2743 Agilent Cascadable Silicon Bipolar Gain Block MMIC Amplifier 1 0.94 0.94
ABA-53563 Agilent 3.5 GHz Broadband Silicon RFIC Amplifier 3 0.40 1.20
HMC315 Hittite GaAs InGaP HBT MMIC Darlington Amplifier, DC - 7.0 GHz 3 0.97 2.91
AG604-89 WJ Ingap HBT Gain Block 2 1.48 2.96
Kit C124A Coilcraft 1.6 nH 30 nH, 10 pieces each, 2 Tol 1 80.00 80.00
Substrate Rogers Corporation RO4003, .020 Mil Thick, 1.4 Mil Foil  2  32.25 64.50
Connectors Various End Launch, Panel Mounts, M/M Barrels 300.00
        Total 512.03