RF Transceiver Architecture, Design and Evaluation

Course 031

San Jose, CA	Dec 06-Dec 10, 2010
Course 031-4318	Presented by Ed Niehenke
Register by 11/1/2010 and pay $1995, otherwise pay $2195

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Updated: Now includes system tests and troubleshooting (see outline day five).

Summary:

This five-day course provides participants with the engineering tools to architect, design, and test wireless systems. Critical system requirements and specifications will be presented for many advanced wireless standards such as EDGE, GSM, CDMA, CDMA2000, Wideband CDMA, 802.11, 802.16, RF Tags, Bluetooth, etc. Techniques to generate and receive analog and digital signal inputs including: BPSK, DBPSK, QPSK, OQPSK, GSM, p/4 DPSK, QAM, 3p/8-shifted 8PSK, GFSK, OFDMA--as well as their properties will be presented. The various transmit and receiver configurations will be shown and compared so that the appropriate one can be selected for a particular application. Transmitter and receiver nonlinearities will be described with their negative effect on system performance including techniques to meet system specifications. Design techniques for signal generation and reception using digital signal processing and phased locked loops will be shown. Software defined radio technologies will be explored for reconfigurable multi-mode/multi-band applications. Commercially available multi-band transceiver chips and complete transceiver design for many systems will be presented. Finally, transceiver test and troubleshooting procedures will be described. Students are encouraged to bring their laptop computers to class. The design software available for use in this public course is from Applied Wave Research (AWR).

Learning Objectives:

Upon completing the course, the participant will be able to:

• Describe common wireless standards and their impact on RF transceiver architectures
• Describe major digital modulation schemes and their relationship to RF transceiver design
• Architect transmitter and design linearization circuitry
• Describe common types of receivers and their components
• Analyze typical performance parameters, and accompanying limitations
• Learn how to architect a receiver to meet requirements
• Evaluate modern system architectures including multifunction/multi-standard types including the software defined radio
• Test, and troubleshoot the transmitter and receiver

Target Audience:

Component designers, test engineers, system designers, managers and technicians with an RF background will benefit from this course. Students should bring a notebook computer to class.

Outline:

Day One

Wireless Specifications, Transmitter Architecture
• Specifications : GSM/EDGE, CDMA, Wideband CDMA, CDMA2000, Bluetooth, IEEE803.11 • Transmitter block diagram description • Generation of RF signals: PLL, Digital Signal Processor (DSP) • Modulation of RF signals • Modulator imperfections • Balanced circuits : common mode and even harmonic rejection • Direct and dual up conversion : examples, synthesis of multi-carrier signals • Transmitter spur locations • Transmitter input signals and their generation : BPSK, DBPSK, QPSK, OQPSK, GSM, p/4 DPSK, QAM, 3p/8-shifted 8PSK, GFSK, OFDMA

Day Two

Transmitter Architecture and System Design
• Transmitter nonlinearities and distortion : harmonic/intermodulation distortion, AM/AM – AM/PM, ACLP, EMV • Transmitter noise and filtering • Transmitter power devices • Efficiency enhancing techniques : voltage, current, load line modulation • Transmitter distortion reduction • Alternate transmitter types : polar modulator, Kahn,Doherty, LINC, and dynamic power supply with predistortion • Transmitter CAD, commercially available transmitter elements and their specifications • Transmitter architecture design examples for various systems

Day Three

Receiver Architecture and System Design
• Receiver block diagrams • Important receiver parameters • Receiver types : zero IF, low IF, Superheterodyne, and software defined • A/D considerations • Receiver elements description with typical performance • Receiver demodulation for various systems • Receiver S/N in terms of Eb/N0 and BER • IF frequency selection for spurious free operation • Filtering and shielding • CAD and evaluation of complete receiver

Day Four

Multifunction Transceiver Architecture and Design
• Link budget design • Commercially available transceiver elements and their specifications • Complete system design and architecture : GSM/EDGE, CDMA, Wideband CDMA and CDMA 2000, 802.11, Bluetooth • Multifunction transceiver design and examples • Software defined radio • Transceiver packaging, layout, interconnection, and shielding considerations with examples

Day Five

Testing/Troubleshooting of Transmitter/Receiver Systems
• Transmitter in-channel measurements : channel bandwidth, carrier frequency, channel power, occupied bandwidth, peak-to-average power ratio, complimentary cumulative distribution function, burst width, rise time, on-time, off-time, peak power, on power, off power, duty cycle. EVM, and phase/frequency error • Transmitter out-of-band measurements : spurious, harmonics • Factors effecting transmitter impairments : compression, incorrect filter coefficient, LO instability, I/Q amplitude/phase imbalance, DAC/DSP error • Transmitter impairments troubleshooting • Receiver in-channel measurements : SINAD, Sensitivity at specified BER, co-channel rejection • Receiver out-of-channel testing : spurious immunity, intermodulation immunity, and adjacent/alternate selectivity • Receiver impairments and detection techniques : I/Q impairments, interfering tone/spur, incorrect symbol rate, baseband/IF filtering problem

Subject Areas Covered

RF Systems Integration/Transceiver Architecture
RF and Wireless Measurements

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