- R=reactance
- Rabbit Semiconductor
- radar
- radiation
- radiation patterns
- radio
- radio propagation models
- radioactivity
- radiometry
- RAID
- RAM
- Ramsey Theory
- Ramtron
- Random Numbers
- random variables
- rapid prototyping
- RC time constant
- RCS
- reactance
- reactors
- real-time
- real-time control
- real-time design patterns
- real-time systems
- realbody
- receiver sensitivity
- recruiters
- rectifier
- rectifiers
- recursion
- recursive descent
- recursive graph algorithms
- red shift
- Reed-Muller transform
- reference
- reference design
- reflected power
- reflection
- reflection coefficient
- reflector theory
- refraction
- refridgeration
- refrigeration
- regression
- regulators
- relative accuracy
- relative motion
- relativity
- relays
- reliability
- reliability engineering
- reliability phase diagrams
- reliability testing
- remote sensing
- Renesas Technology
- repairable systems
- research
- resistance
- resistance switching
- resistor color codes
- resistors
- resolution
- resonance
- resonant circuits
- resonant converters
- resonators
- Resource-Reservation Protocol
- resume
- resumes
- return loss
- reverse engineering
- revision control
- Rexx
- RF
- Basic Radio
- Basics of Design
- Fun With Tubes
- Introduction to RF Simulation and its Application
- MEMs Investor Journal
- Microwave Journal
- Navy Warfare and Radar Systems Handbook
- Overcoming the Measurement Challenges of Advanced Semiconductor Technologies: DC, Pulse, and RF - From Modeling to Manufacturing
- Philips RF Manual: product & design manual for RF small signal discretes
- RF Measurement Basics for Non-RF Test Engineers
- RFDesign
- Spread Spectrum Scene: The Smith Chart
- Switching Handbok: A Guide to Signal Switching in Automated Test Systems
- The RF and Microwave Circuit Design Cookbook
- Understanding Radio for the Practical Engineer
- Vanishing Point
- Vanishing Point
- RF amplifier
- RF modeling
- RF/IF
- RFI
- RFID
- RFP
- rfq
- Rhapsody
- rigid bodies
- ring oscillators
- RIP
- risk management
- RJ45
- roadmap
- robot control
- robotics
- RoHS
- ROM
- Root Finding
- Routh-Hurwitz criterion
- routing
- Routing Information Protocol
- RPC
- RPN
- RS-232
- RS-274-X
- RS-422
- RS-485
- RS232
- RSA algorithm
- RSS uncertainty
- RSVP
- RTL
- RTOS
- RTP
- RTS
- RTS/CTS
- rule-based
- rules
- Russian
- RxD
