The document outlines the presentation for an ECE senior design team working on an Ultra Wide Band communication system. It describes the problem of enabling high data rate 4G networks and provides an overview of the team's solutions including designs for a base station with a digital receiver/transmitter board and local oscillator/phase board. Evaluation results are presented for the power amplifier, low noise amplifier, buffer amplifier, baluns, power divider and local oscillator/phase board.
1. Members: Chris Hinton Paul Miranda Vaibhav Mistry Team: ECE-24 Advisor: Dr. Daryoush
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4. Receiving Antenna Transmitting Antenna DSP Receiver Board Receiver Board Receiver Board Receiver Board Transmitter Board Transmitter Board Transmitter Board Transmitter Board Figure 2 &3. 4x4 MIMO Antennas developed in 2002 under Dr. Daryoush
5. Power Combiner Power Divider Back of Receiving Antenna Back of Transmitting Antenna DSP Receiver Board Receiver Board Receiver Board Receiver Board Transmitter Board Transmitter Board Transmitter Board Transmitter Board Figure 3 & 4. Back of 4x4 MIMO Antennas
6. Receiver Block Diagram Band Pass Filter Balanced Power Divider Stable Local Oscillator & Polyphase Circuit Low Pass Filter Low Pass Filter I Channel Q Channel V180 V0 V-90 V90 ECE -24 Differential Gilbert Cell Mixer Differential Gilbert Cell Mixer One 2x2 Sub Array Antenna Low Noise Amplifier Buffer Amplifier Buffer Amplifier ECE -24 ECE -24 FPGA Analog to Digital Convertor Analog to Digital Convertor Separate ‘Receiver Board’ Separate ‘Local Oscillator Polyphase Board’
7. Transmitter Block Diagram Balanced Power Combiner Stable Local Oscillator & Polyphase Circuit FPGA Digital to Analog Convertor Digital to Analog Convertor Low Pass Filter Low Pass Filter Separate ‘Transmitter Board’ Separate ‘Local Oscillator Polyphase Board’ I Channel Q Channel V180 V0 V-90 V90 ECE -24 Differential Gilbert Cell Mixer Differential Gilbert Cell Mixer One 2x2 Sub Array Antenna Band Pass Filter Buffer Amplifier Buffer Amplifier ECE -24 ECE -24 ECE -24 Power Amplifier
8. Transmitter Block Diagram Balanced Power Combiner Stable Local Oscillator & Polyphase Circuit FPGA Digital to Analog Convertor Digital to Analog Convertor Low Pass Filter Low Pass Filter Separate ‘Transmitter Board’ Separate ‘Local Oscillator Polyphase Board’ I Channel Q Channel V180 V0 V-90 V90 ECE -24 Differential Gilbert Cell Mixer Differential Gilbert Cell Mixer One 2x2 Sub Array Antenna Band Pass Filter Buffer Amplifier Buffer Amplifier ECE -24 ECE -24 ECE -24 Power Amplifier
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10. AWT6283R from Anadigics Figure 9. Power Amplifier Evaluation Board provided by Anadigics Figure 11. Power Amplifier Prototype Board Figure 12. Power Amplifier Heatsink Figure 10. Power Amplifier Prototype Layout
11. Power Amplifier: Results Table 4: Comparison between AWT6283R Evaluation Board and Prototype Board Figure 13: P1 dB of Evaluation and Prototype Board Parameter AWT6283R (Evaluation Board) AWT6283R(Prototype Board) Output Power(W) 1.5 W 1.5 W Gain (dB) 30 dB 30 dB P1dB (dBm) 31 dBm 30 dBm IP3 (dBm) 16.7 dBm 16.05 dBm
12. Power Amplifier : Results Figure 14: Gain of Prototype Board with 20 dB attenuator and reference signal of -15 dBm Figure 15: Gain of Evaluation Board
13. Figure 17. Intermodulation Distortion of Prototype Board Figure 16. Intermodulation Distortion of Evaluation Board
14. Receiver Block Diagram Band Pass Filter Balanced Power Divider Stable Local Oscillator & Polyphase Circuit Low Pass Filter Low Pass Filter I Channel Q Channel V180 V0 V-90 V90 ECE -24 Differential Gilbert Cell Mixer Differential Gilbert Cell Mixer One 2x2 Sub Array Antenna Low Noise Amplifier Buffer Amplifier Buffer Amplifier ECE -24 ECE -24 FPGA Analog to Digital Convertor Analog to Digital Convertor Separate ‘Receiver Board’ Separate ‘Local Oscillator Polyphase Board’
17. Low Noise Amplifier : Results Table 10: Comparison of Evaluation and Prototype Board Figure 44: P1 dB of Evaluation Board Parameter Evaluation Board Prototype Board Gain (dB) 20 dB 20 dB IP3 (dBm) 16.9 dBm 16.75 dBm Noise Figure (dB) 0.8 dB 1.1 dB
18. Figure 45: S21 (Gain) of Prototype Board with -35 dBm of Reference Signal Figure 46: S Parameters of Evaluation Board
19. Low Noise Amplifier Results Figure 47: Intermodulation Distortion of Evaluation Board Figure 48: Intermodulation Distortion of Prototype Board
20. Receiver Block Diagram Band Pass Filter Balanced Power Divider Stable Local Oscillator & Polyphase Circuit Low Pass Filter Low Pass Filter I Channel Q Channel V180 V0 V-90 V90 ECE -24 Differential Gilbert Cell Mixer Differential Gilbert Cell Mixer One 2x2 Sub Array Antenna Low Noise Amplifier Buffer Amplifier Buffer Amplifier ECE -24 ECE -24 FPGA Analog to Digital Convertor Analog to Digital Convertor Separate ‘Receiver Board’ Separate ‘Local Oscillator Polyphase Board’
25. Buffer Amplifier Results Figure 52: Output Waveform of Buffer Amplifier Figure 53: Test Setup of Buffer Amplifier
26. Receiver Block Diagram Band Pass Filter Balanced Power Divider Stable Local Oscillator & Polyphase Circuit Low Pass Filter Low Pass Filter I Channel Q Channel V180 V0 V-90 V90 ECE -24 Differential Gilbert Cell Mixer Differential Gilbert Cell Mixer One 2x2 Sub Array Antenna Low Noise Amplifier Buffer Amplifier Buffer Amplifier ECE -24 ECE -24 FPGA Analog to Digital Convertor Analog to Digital Convertor Separate ‘Receiver Board’ Separate ‘Local Oscillator Polyphase Board’
27. Local Oscillator Polyphase Board Block Diagram Power Amplifier V0 V180 Differential Polyphase Shifter V0 V90 V-90 V180 V0 Balun Balun V180 Balun Balun Balun V-90 V0 1:2 Extra 90° of T-Line Balun Balun Local Oscillator V90 V180 V-90 V90 1:2 Extra 90° of T-Line Balun Balun 1:2 Extra 90° of T-Line Balun Balun 1:2 Extra 90° of T-Line Balun Balun 1:2 Extra 90° of T-Line Balun Balun 1:2 Extra 90° of T-Line Balun Balun 1:2 Extra 90° of T-Line Balun Balun 1:2 Extra 90° of T-Line Balun Balun V90 V-90 V0 V180 V90 V-90 V0 V180 V-90 V90 V180 V0 V-90 V90 V180 V0 V180 V0 V90 V-90 V180 V0 V90 V-90 Vo V180 V-90 V90 Vo V180 V-90 V90
28. Figure 18. Broken Polyphase Alumina Board Figure 19. Polyphase IC developed under Dr. Daryoush in 2004 Figure 20. Polyphase IC epoxied on Leadless Chip Carrier
44. Table 12. Industrial Budget. Cost Per Unit Units Total People Design Engineers (3) $5,000/month 9 months $135,000 Employee Fringe Benefits 30% of salary 9 months $40,500 Consultants (2) $12,000/month 7 months $168,000 Technician (1) $50/hours 20 hours $1,000 Metal Shop Technician (1) $50/hours 14 hours $700 Anechoic Chamber $150/hours 8 hours $1,200 Circuits Total Chip purchases $2,000/reel 10 $20,000 Hybrid Circuits (wire-bonding) $5,000/board 9 $45,000 Testing Vector Network Analyzer $39,900 2 $79,800 Network Analyzer Calibration Kit $3,000 2 $6,000 Spectrum Analyzer $57,000 1 $57,000 Digital Oscilloscope $45,000 1 $45,000 RF Power Meter $4,000 1 $4,000 DC Power Supply $800 1 $800 Signal Generator $35,000 2 $70,000 Multi-meter $500 2 $1,000 Fabrication LPKF Machine w/Circuit CAM & Board Master $12,000 1 $12,000 LPKF Machine Bits Set $1,000/set 1 set $1,000 Soldering Station $500 2 $1,000 Soldering Accessories $100 2 $200 Industrial Hot Plate $160 1 $160 Microscope $4,000 2 $8,000 Manual Knee Mill service $10,000 1 $10,000 Drill Press $5,000 1 $5,000 Band saw $3,000 1 $3,000 Machine shop service $52/hours 14 hours $728 Software Agilent ADS $9,000/license 1 license $9,000 MATLAB $500/license 1 license $500 PCs with Microsoft Office $1,000/computer 3 $3,000 Total $728,558 Overhead (110%) $801,414 Final Total $1,529,972
45. Table 13. To Date Out of Pocket Budget Table 14. Original Proposed Out of Pocket Budget in PQF Expense Cost Per Unit Units Total Circuit Samples $0/sample 60 samples $0.00 Gas to Advanced Control Components, INC. $0.58/miles (159 mi/trip) * (5 trips) $461.10 Leadless Chip Carriers $13.3/unit 15 $232.00 Shipping for Johanson Technology Baluns $1.71 45 $26.30 Hardware for PCBs $1.47 60 $88.34 25 Pin Female DSUB Connector $2.99 2 $5.98 Subtotal $813.70 ECE Department Refund -$232 Final Total $581.72 Expense Cost Per Unit Units Total Circuits $0/sample 60ish samples $0.00 Gas to Hybrid Tech $0.58/miles 110 mi/trip $63.00/trip Final Total $63.00/trip
46. Table 15. Gantt Chart and Teamwork Division ECE-24 Senior Design Gantt Chart Finish September October November December January February March Arpril May 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 Project Qualification Form 10/22/2008 Proposal 11/21/2008 Oral Proposal 12/06/2009 Executive Summary 02/25/2009 Progress Report 03/04/2009 Oral Progress Report 03/09/2009 Abstract 04/15/2009 Final Report 05/13/2009 Oral Final Report 05/18/2009 Paul Miranda Local Oscillator 05/01/2009 Layout Design 03/09/2009 Layout Fabrication 03/24/2009 Protype Test 05/05/2009 Chris Hinton Polyphase Shifter 05/11/2009 Layout Design 03/09/2009 Layout Fabrication 03/24/2009 Protype Test 05/11/2009 Balun Circuit 05/11/2009 Layout Design 03/09/2009 Layout Fabrication 03/24/2009 Protype Test 05/11/2009 Power Divider Circuit 05/11/2009 Layout Design 03/09/2009 Layout Fabrication 03/24/2009 Protype Test 05/11/2009 Vaibhav Mistry Low Noise Amplifier 05/12/2009 Layout Design 03/03/2009 Layout Fabrication 03/25/2009 Protype Test Power Amplifier 05/12/2009 Layout Design 03/20/2009 Layout Fabrication 03/25/2009 Protype Test 05/05/2009 Buffer Amplifier 05/12/2009 Layout Design 03/01/2009 Layout Fabrication 03/25/2009 Protype Test 05/12/2009 All Local Oscillator & Polyphase Board 05/12/2009 Layout Design 05/06/2009 Layout Fabrication 05/06/2009 Full System Test 05/12/2009 Receiver & Transmitter Boards 05/12/2009 Layout Design 05/06/2009 Layout Fabrication 05/06/2009 Full System Test 05/12/2009 In Progress Done
47. Table 16. Summary of Deliverables Deliverable Status Local Oscillator and Poly Phase Board Local Oscillator Delivered Power Amplifier Delivered Poly-phase Circuit Delivered Power Divider Delivered Balun Delivered System Integration Still in Test Transmitter Board Power Amplifier Delivered Buffer Amplifier Delivered Balanced Power Combiner Delivered Receiver Board Low Noise Amplifer Delivered Buffer Amplifier Delivered Balanced Power Divider Delivered
51. [1] http://www.3gamericas.org/documents/UMTS_Forum_MBB_LTE_White_Paper_February_2009%5B1%5D.pdf [2] - http://www.3gamericas.org/documents/applications_nov2004.pdf [3] - http://www.synergymwave.com/Products/synthesizer/datasheets/FSW200400-100.pdf [4] - http://www.wenzel.com/pdffiles1/Standard%20Parts/501s/50104608a.pdf [5] - http://www.johansontechnology.com/images/stories/ip/baluns/Balun_3600BL14M100.pdf [6] - http://www.mini-circuits.com/pdfs/SCN-2-35.pdf [7] - http://products.rfmd.com/docdownload.jsp?docID=NN30-DSN-V27VVG23CM&tabname=TechLib [8] - http://focus.ti.com/lit/ds/symlink/ths4513.pdf [9] D. M. Pozar, “Microwave Engineering”, John Wiley & Sons Inc., 2005 [10] Pranav Iyengar and A. S. Daryoush, "Circularly Polarized Array Ring Antenna for Ultra Wide Band Wireless Communications", Drexel University, ECE Department, Philadelphia, PA, 19104. [11] Tiwari, Swarup, Lu, Koanantakool and Amadou, “Sub-System Development for RFIC Based Ultra-Wide Band Base Station- Final Report is submitted to Dr. Daryoush and the ECE Senior Design Project Committee at Drexel University”, May 2007. [12] C.A Balanis, “Antenna Theory: Analysis and Design”, John Wiley & Sons Inc., March 2005. [13] Radmanesh, Matthew M., “Radio frequency and microwave electronics”, Prentice Hall PTR, c2001