Villanova University Department of Electrical and Computer Engineering Curriculum Development in Systems for Smart Communications NSF Award 0203459 Major Topic Area Organization Form Major Topic Area: CMOS VLSI Sub Area Number: 6 Sub Area: On-chip RF mixers
Area Coordinator: Caverly Date: 10-28-02
Sub-topics: topics for 15 to 20 minute lectures/demonstrations SubTopic A
Lecture Topic General introduction into need for mixers and mixer terminology, mixer images
B
General mixer operation: commutation, active and passive mixers
C
Simple passive (diode) mixer topologies for behavioral viewpoint; Manley-Rowe mixer criteria
D
Active (MOSFET) mixer topologies: single, singly balanced, doubly balanced, Gilbert
E
Phase shifter circuits for quadrature mixers (active, passive)
F
Mixer type pros and cons
G H
Use the sections as needed; use additional pages if needed.
Villanova University Department of Electrical and Computer Engineering Curriculum Development in Systems for Smart Communications NSF Award 0203459 Sub-Topic Organization Form Sub Topic Area Number: 6 Subtopic Letter Designation (A, B, etc.): A
Area Coordinator: Caverly Date: 10-28-02
Lecture/Demonstration Materials Required (Yes-Y, No-N) Video Lecture Tape
Computer Screen Output
Document Camera
CAD Software (name)
Other (specify)
Sub-topic Highlights A. Mixers as heterodyning elements for frequency up/down conversion; LO, RF, IF; conversion gain/loss B. Based on a 3rd order mathematical model, determine 2nd and 3rd mixing products for a 3 tone signal, showing RF, LO, IF, image and 3rd order mixing term C. Phasing for reducing/eliminating image signal D. Multiple heterodyning stages (10X frequency rule) E. Mixer noise and noise figure Application Exercises (Reinforcement) Students will calculate the mixing products assuming an ideal mixer.
Sub-topic Learning Outcome(s) Students will calculate mixer TOI from mixer data. Students will calculate the mixing products of the ideal mixer, including TOI products Assessment Method(s)
Villanova University Department of Electrical and Computer Engineering Curriculum Development in Systems for Smart Communications NSF Award 0203459 Sub-Topic Organization Form Sub Topic Area Number: 6 Subtopic Letter Designation (A, B, etc.): B
Area Coordinator: Caverly Date: 10-28-02
Lecture/Demonstration Materials Required (Yes-Y, No-N) Video Lecture Tape
Computer Screen Output
Document Camera
CAD Software (name)
Other (specify)
Sub-topic Highlights A. Single switch and double switch ideal mixer (commutator) to show mixer operation and ideal waveform. B. Replace ideal switches with diodes to show passive mixing; introduce LO saturation and why mixers should operate near saturation
Application Exercises (Reinforcement) Students will use a SPICE (or ADS) template to simulate a simple diode mixer problem.
Sub-topic Learning Outcome(s) Students will simulate the mixing products of the diode mixer, observing TOI products
Assessment Method(s)
Villanova University Department of Electrical and Computer Engineering Curriculum Development in Systems for Smart Communications NSF Award 0203459 Sub-Topic Organization Form Sub Topic Area Number: 6 Subtopic Letter Designation (A, B, etc.): C
Area Coordinator: Caverly Date: 10-28-02
Lecture/Demonstration Materials Required (Yes-Y, No-N) Video Lecture Tape
Computer Screen Output
Document Camera
CAD Software (name)
Other (specify)
Sub-topic Highlights A. Various diode mixer circuit topologies: single, double, ring, singly and doubly balanced mixers; in phase and out of phase RF, LO, IF components B. Manley-Rowe criteria C. Mixer port to port isolation, loss
Application Exercises (Reinforcement) Students will use a SPICE (or ADS) template to simulate a doubly balanced diode mixer problem.
Sub-topic Learning Outcome(s) Students will simulate the mixing products of the doubly balanced diode mixer, observing TOI products and improvement over the single diode mixer.
Assessment Method(s)
Villanova University Department of Electrical and Computer Engineering Curriculum Development in Systems for Smart Communications NSF Award 0203459 Sub-Topic Organization Form Sub Topic Area Number: 6 Subtopic Letter Designation (A, B, etc.): D
Area Coordinator: Caverly Date: 10-28-02
Lecture/Demonstration Materials Required (Yes-Y, No-N) Video Lecture Tape
Computer Screen Output
Document Camera
CAD Software (name)
Other (specify) Chip set
Sub-topic Highlights A. Introduce CMOSFETs as mixer elements B. Cover the passive MOS singly and doubly balanced ring mixers; in phase and out of phase RF, LO, IF components C. Introduce the active single and doubly balanced mixers, Gilbert cell mixer
Application Exercises (Reinforcement) 1. Students will use SPICE (or ADS) templates to simulate mixing using singly balanced passive and active MOSFET mixers, observing the differences between the two types. 2. Students will use measured mixer data from the chip set to determine the actual mixer response of on-chip mixers. Sub-topic Learning Outcome(s) 1. Students will observe mixer operation using MOSFETs as mixing elements. 2. Students will simulate and observe the differences in operation between two mixer types. Assessment Method(s)
Villanova University Department of Electrical and Computer Engineering Curriculum Development in Systems for Smart Communications NSF Award 0203459 Sub-Topic Organization Form Sub Topic Area Number: 6 Subtopic Letter Designation (A, B, etc.): E
Area Coordinator: Caverly Date: 10-28-02
Lecture/Demonstration Materials Required (Yes-Y, No-N) Video Lecture Tape
Computer Screen Output
Document Camera
CAD Software (name)
Other (specify)
Sub-topic Highlights A. Review the need for 0-180o RF, IF, LO; 0-90o signals for mixers B. I/Q signals for direct conversion receivers as a case study C. Passive elements for signal phase changes: strip-style hybrids D. Active devices for signal phase changes: active phase shifters using FETs
Application Exercises (Reinforcement) Students will use a SPICE template (or ADS) to simulate and observe the I/Q signals for use in GSM systems.
Sub-topic Learning Outcome(s) Students will simulate the I/Q converted signal for post-mixer data conversion in GSM systems.
Assessment Method(s)
Villanova University Department of Electrical and Computer Engineering Curriculum Development in Systems for Smart Communications NSF Award 0203459 Sub-Topic Organization Form Sub Topic Area Number: 6 Subtopic Letter Designation (A, B, etc.): F
Area Coordinator: Caverly Date: 10-28-02
Lecture/Demonstration Materials Required (Yes-Y, No-N) Video Lecture Tape
Computer Screen Output
Document Camera
CAD Software (name)
Other (specify)
Sub-topic Highlights A. Review the pros and cons of using various mixers: passive diode, FET mixers and active FET mixers
Application Exercises (Reinforcement)
Sub-topic Learning Outcome(s)
Assessment Method(s)
