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Copyright: 1996 - 2024
    Kirt Blattenberger,


RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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RF & Microwave Magazine Article Archive - 2013

If you are like me, you spend a lot of time reading articles from technical magazines. Sometimes I read the entire article, but usually I just scan the text for highlights and look at the schematics, block diagrams, and charts / graphs. Often, I want to go back and find an article but cannot recall where I saw it. A Google search will usually eventually reveal a hyperlink to the article, but a lot of times it takes a lot of digging. Since my key interests are not necessarily the same as RF Cafe visitors, an attempt will be made to catalog all of them. If there is a magazine not included here that you would like me to include in the list, please send me an e-mail and I will try to incorporate its articles, too.

High Frequency Electronics | Microwave Journal | Microwaves & RF | Microwave Product Digest | Test & Measurement World

RF Technology International (RFTI)

RFTI appears to be pretty much defunct. RIP


High Frequency Electronics


Logging of RF Power Measurements
Orwill Hawkins

Leveraging the Use of a Radio Frequency Planning (RFP) Design Tool for Modern System Design
Malcolm Edwards


Power MOSFET "Squegging": Cause and Cure (p.22)
Andre Adrian

Exploring Decimation Filters (p.32)
Arash Loloee


Addressing the Challenges of Radar and EW System Design and Test using a Model-Based Platform
Dingquing Lu

Design of a Planar Inverted F Compact Dual Frequency Antenna for Mobile, Wireless and Automotive Applications
Pasquale Dottorato


An Electrical-Thermal Coupled Solution for SiGe Designs (p.22)
Mike Heimlich

A FPGA-Based Replacement for a Network Analyzer in an Instrumentation-Based 200 GHz Radar (p.30)
John Mower and Yasuo Kuga


EU Power Limitations on ZigBee-Type Waveforms
Boris Aleiner

A Power MOSFET SPICE Model with Built-In Model Generator
Andre Adrian


Choosing Circuit Materials for Millimeter Wave Applications (p.22)
John Coonrod

EMC Simulation of Consumer Electronic Devices (p.32)
Andreas Barchanski


RF Transistor Large Signal Load Stability (LSLS) Analysis Using EDA Tools
John Pritiskutch

A Simple Configuration for Replacing Signal Harnesses Satellites
Hermanth Kumar S, Murali Bharadwaj N, and Sambasiva Rao V


Input Third Order Intercept Point for Crystal Filters
Dennis Layne

LDMOS Power Modules for Two Way Mobile Radios
Alfio Scuto


Measuring Peak and Pulse Power with USB Power Sensors
Orwill Hawkins

Microwave Engineering Education
Tom Perkins


Small Cell Amplifier and System Design Considerations
Jean-Christophe Nanan and Barry Stern

Feasibility of Microstrip Wilkinson Power Dividers on FR4 Substrates for L-Band (1-2 GHz) Applications
Christos Kalialakis


MMIC Frequency Doublers
John E. Penn

RF MEMS Switches: High-Frequency Performance and Hot-Switching Reliability
Tai Wen Jau


The Future of Instrumentation: The Software Revolution
Matthew Friedman

Design, Construction and Characterization of an IF Processor for the FFT Spectrometer of the Yebes 40 Meter Radio Telescope
José Antonio López-Pérez and David Cuadrado-Calle

Using Analyst™ to Quickly and Accurately Optimize a Chip-Module-Board Transition
Dr. John Dunn


Microwave Journal

December 2013

Tapping into a New RF Energy Source Found in Digital Processing Circuits
Michael Hopkins, CurrentRF

Hybrid Linac-MR: Image-Guided Radiation Therapy Delivered in Real-Time
Alexandra Foley

RF Technology in Semiconductor Wafer Processing
Abdullah Eroglu


802.11ac Design Considerations for Mobile Devices
Eid Alsabbagh, Haoyang Yu and Kevin Gallagher

RF Characteristics of Coplanar Waveguide Fabricated on Flexible PES
Young Yun, Jang-Hyeon Jeong, Hong-Seung Kim and Nak-Won Jang

Screen Printed RFID-Enabled Temperature Sensor Fabricated on Flexible Substrates
Kamil Janeczek, Malgorzata Jakubowska, Grazyna Koziol and Wojciech Steplewski


MIMO Radar: Demystified
Eli Brookner

AULOS, a Passive Covert Radar System
B. Eged, R. Fiengo, F. Persia, S. Thompson, R. Fulcoli, M. Sedehi, E. Tilli and L. Timmoneri

Spiral Antenna Design Considerations
Tom Lam, Rich Bidwell and Scott Blee

Full Transmitter Linearization Using a Wideband DPD Measurement Platform
Jinbiao Xu

A Miniaturized Impedance Transformer Employing PGS on GaAs
Young Yun and Jang-Hyeon Jeong

Conformal Antenna Array Design on a Missile Platform
Kyle Labowski, Christopher Penney and James F. Stack, Jr.


Test & Measurement World


Detecting ESD Events
Kenneth Wyatt

Glass Weave Skew Problems May be Solved
Eric Bogatin

Phase Noise and the Y-Factor Noise Figure
Pete Hanish

The Bloch Wave Effect
Eric Bogatin

Get ADC Data Beyond the Datasheet
Maithil Pachchigar & Richard Liggiero

An Important Secret About Transmission Lines
Eric Bogatin

Measurement Sensors: For a Calculator?
Chris Grachanen

Lab Equipment: To Build or Not to Build...
Steve Hageman

Six Tips for Better TDR Measurements
Steve Sandler

Find the Resistance of a Long Ladder
Marian Stofka


A Practical Take on FFTs
Michael Dunn

Jitter Separation: Where Science Meets Art
Brig Asay

So You Think You Understand Transmission Lines
Eric Bogatin

Jitter: Measurement References Matter
Daniel Chow

Analog Fundamentals: Instrumentation for Impedance Measurement
Rob Reeder

Contactless Testing
Ron Press


Measure Vector and Area With an Oscilloscope X-Y Display
Arthur Pini

Thermocouples: Simple But Misunderstood
Martin Rowe

Wireless Oscilloscope Sends Data to a Tablet
Martin Rowe

Get Ready for M-PCIe Testing
Chris Loberg

How to Think in dB
Eric Bogatin

The Many Faces of Jitter
Daniel Chow

Precision Capacitance Meter
Francesc Casanellas

Modern Thermocouples and a High-Resolution Delta-Sigma ADC Enable High-Precision Temperature Measurement: A Reference Design for a Precision DAS
Joseph Shtargot and Mohammad Qazi

The Basics of Digital Signal Spectra
Daniel Chow

Apply Memory BIST to External DRAMs
Etienne Racine


The Serial Port: It Just Keeps Going
Martin Rowe

How to Perform Histogram Analysis on Your Oscilloscope
Arthur Pini

Sensor basics: Types, Functions and Applications
Martin Rowe

How to Perform HDMI Measurements
Klaus Schiffner, Rohde & Schwarz

Test & Characterize RF filters in IC Production: A New Approach
Pete Sarson & Andreas Wild

Not All Common Currents Are Bad
Eric Bogatin


SSD Performance Measurement: Best Practices
Doug Rollins

Oscilloscope Probes: Understand and Optimize
Stephen Mueller

Measurements for the New WLAN Standard: IEEE 802.11ac
Martin Schmaehling & Markus Loerner

Always a Good Policy to Question Authority
Eric Bogatin

Ensure Magnetic Components Meet Specs
Jeffrey Dierker

How to Measure MOSFET Drain Voltage and Current
Chris Lee

Solve MOSFET Characteristic Variation and Reliability Degradation Issues
Takuro Nishimura

Improve Wireless Testing of Sensitive Devices
Per Nielsen

Test Equipment Gets Boost From the Cloud
Olga Shapiro

Open-Source Electrical Engineering Design Tools (continued)
Casey Hare


Analyze High-Speed Interconnects
Anil Pandey

Navigating Successful USB 3.0 Compliance
Tom Rossi and Fred Rastgar

Decoding the Brain Using MRI and YouTube
Ransom Stephens

Test Safety-Critical Automotive Parts
Stephen Pateras


What Does Test Equipment Have to Do with Carrier Aggregation?
Olga Shapiro & Sashank Reddy

Measuring the Thickness of Coated Shields
Kenneth Wyatt

Improve Test Automation
Jim Holmes

UNH Releases EXS 1.3.0
Patrick MacArthur

Voice Over LTE (VoLTE) Impacts Test & Measurement Market
Olga Shapiro


When is a Multichannel Power Supply More Convenient Than a Single-Channel Power Supply?
Robert Green

Identifying Emission Sources and Propagating Structures
Kenneth Wyatt

Measuring the Transition to Disaster
Ransom Stephens

Identifying Emission Sources and Propagating Structures
Kenneth Wyatt

Validate and Analyze Complex Serial-Bus-Link Models
Sarah Boen

Thermal Electric Coolers Offer Advantages for Thermal Testing
Larry Sharp

How to Generate Test Patterns to Detect FinFET Defects
Stephen Pateras


Boost DFT Efficiency for Large SoCs
Rick Fisette

How to Perform Multiple-Domain Measurements
Dave Rishavy & Tomas Berghall

Open-Source Goes RF
Casey Hare

Resolving to Map the Brain: Resolution, Resolution, Resolution
Ransom Stephens


How to Verify and Debug Next-Generation Memory
Chris Loberg

What's so Scary About Test Automation?
Alex Henthorn-Iwane

Product Safety Testing Limits Risk of Shock, Fire, and Injury, Part 2
Dave Lohbeck

RF System Design: Automating the Custom Model Process with Instrumentation and System Simulation Software
Joel Kirshman & Takao Inoue

Aren't More Bits Better?
Chris Loberg

IEC61010 3rd Edition: New International Safety Requirements for Lab Equipment
Steven Brown

Measuring Gravitational Radiation
Ransom Stephens

Product Safety Testing Limits Risk of Shock, Fire, and Injury, Part 1
Dave Lohbeck


Identify the Best Power Supply for a Test Application
James Niemann, Robert Green & Qing Starks

In Search of Gravity Waves
Ransom Stephens 

How to Lower the Total Cost of Ownership for PXI Instruments
Mark Catelani

Open-Source Electrical Engineering Design Tools
Casey Hare

Use a Smarter DFT Tool Environment for Better Design Customization
Ron Press


Test MIPI DSI Protocol Conformance
Steve Tatarczuk

Characterizing a High-Density, Controlled Impedance Test Interface
Eric Bogatin & Gordon Vinther

Make Sense of a Linear Power Supply's Data Sheet
Robert Green

Are You Buying More DMM Digits Than You Really Need?
Jerry Janesch


Microwaves & RF


Active Antenna Systems Enjoy Growth
Iliza Sokol


Metamaterial Extends Microstrip Antenna
Jianpeng Liu, Yongzhi Cheng, Yan Nie, and Rongzhou Gong

Ferrite Transformers Fuel Broadband Power Dividers
Dr. Karen Kocharyan

Check for Co-Existence Between LTE and Radar
Greg Jue

UWB Arrays Employ TCAs
Zhihui Hu, Yonghua Jiang, and Xiang Ling

Full-Duplex WiFi Radio Utilizes Hybrid Analog-Digital Cancellation
Iliza Sokol

MEMS Switch Manages Millimeter-Wave Signals
Yan-Qing Zhu, Lei Han, and Jie-Ying Tang


Teams Investigate Antenna Modeling/Control and Protocols for 60-GHz Range
Iliza Sokol

Laser Beams Replace RF for Lunar Communications
Iliza Sokol

Understanding Measurement Uncertainties in Spectrum Analysis
Bob Nelson

Evaluate EDA Software for a Wireless World
Dr. Stephen Maas

Beyond CMOS Vs. GaAs: Picking the Right Technology
Matthew Ozalas

Benefit From High-Dk Microwave Circuit Materials
John Coonrod

Power Amplifier Technology Targets Efficiency
Chris DeMartino

Spectrum Inversion Ensures Compliance With 3GPP2
Steve Lee

Passive Standards Aid Noise System Verification
Hoang V. Nguyen, Neven Misljenovic, Bryan Hosein, and Christos Tsironis

Variable-Gain LNA Reaches 26 GHz
Fei Yu and Weizheng Wang


LPF Builds On Quasi-Yagi DGS
Ahmed Boutejdar, Abbas Omar, and Edmund Burte

Balanced UHF LNA Simplifies Cell Towers
Chin-Leong Lim


Radar Systems Scan The Skies
Jack Browne

High-Speed DACs Fuel Multiband Transmitters
Yi Zhang and Assaf Toledano

GaN-Based C-Band Radar Provides Real-Time Data
Iliza Sokol


Temperature Sensing Stabilizes MCXO
Liang Chen, Yangbo Huang, Yonghu Zhang, and Gang Ou

Speeding Multiport VNA Calibrations
Roy Zohrabian

Digital Predistortion Linearizes RF PAs
Ling Tian, Lei Zhang, Jianfeng Zhai, Jin Xia, and Xiaowei Zhu


Choosing Optimal Cables & Connectors
Jack Browne

Designing MRI Coils with Aid of Simulation
Andreas Bitz, Jorg Felder, and Tilmann Wittig

Unused RF Spectrum May Ease Wi-Fi Traffic Jams
Iliza Sokol

Manage Growing EM Radiation Levels
Jack Browne

Glass DRA Serves as Light Cover
Nancy Friedrich

Analyze the RCS of a Plasma Antenna
Bo Yin, F. Yang, H.G. Hao, and B. Wang


RF MEMS Switches Are Primed for Mass-Market Application
Roger Allan

Oscillators Cover Multiple Bands
Ulrich L. Rohde and Ajay Kumar Poddar

Filtering EMI and RFI Noise
Brett Robinson


What's The Difference Between IEEE 802.11ac and 802.11ad?
Liz Ruetsch

Revealed: Source of Low-Frequency 1/f Noise
Nancy Friedrich

Amplifiers Draw Upon Variety of Technologies
Jack Browne 

Measure Noise Without a Calibrated Source
Roy Monzello


Optimize Time Gating in Spectrum Analysis
Bob Nelson

Keeping Power Levels in Check
Jack Browne

Balanced Amplifier Aims For Low Noise
Chin-Leong Lim

Single Filter Has Many Responses
Jun Xu and Chunhua Wang


White-Space Communications Will Kickstart The “Internet of Things”
Paul Whytock

Low-Power Receiver Serves Multiple Wireless Standards
Kui Fu, Xiaorong Guo, Chunhua Wang, Yuxiang Tu, Chishi Liu, and Joe P. McGeehan

Metamaterials Form Miniature Bandstop Filters
N. Benmostefa, M. Meliani, H. Ouslimani, and M. Feham


Microwave Product Digest


Automating RF Power Sensor Self Re-Certification Using Microsoft Excel
LadyBug Technologies

Flexible Approaches to Multi-Device Testing of Mobile Terminals
Robin Irwin

Leveraging and Extending Signal-Analyzer Technology to Match and Anticipate Evolving Wireless Applications
Richard Overdorf

New VNA Addresses Radar Measurement Challenges to Give Engineers Greater Confidence in Designs
Walt Strickler

Revolutionary Next Generation RF Ceramic Filters for the Wireless World
Ronen Cohen

Digital-Over-Fiber RF Router System Spans 40 km
Peter Walters


Analyzing the Role of Local Oscillator Phase Noise in Reciprocal Mixing
Dale D. Henkes, ACS

100W High Power Silicon PIN Diode SPDT Switches
Rick Puente, Skyworks Solutions, Inc.

Marki Microwave Combines Microwave Office with Microlithic Manufacturing for Successful Custom Mixer Designs

MPMs Meet EW Challenges with Advances in High Power Design
Jose Gonzales

Techniques for Including Memory Effects in the Digital Pre-Distortion Process
Murthy Upmaka

Next Generation Wireless: Riding On the Back of Millimeter Waves


World's Smallest Stripline Junction Isolator
Dave Cruickshank and Brian Hartnett, Skyworks Solutions, Inc.

Designing Superior Weighing Systems to Improve Safety and Control Costs
Del Williams

Radar and Radio Range Simulation Using Fiber Optic Delay Lines
Jerry Lomurno and Joe Mazzochette

Enabling Active Antennas for RADAR and Satellite Communication Applications
Peter Bacon

Selecting Microwave Laminates for Antenna and Radar Applications
John Coonrod


How to Calculate Peak Power Measurement Uncertainties
Sook Hua Wong

Considerations When Conducting Noise Figure Measurements
Sean Flavin

EMC Test Equipment and Services Market – Another Opportunity in China
Prathima Bommakanti

USB Brings Portability and Flexibility to MW Test Bench – Wherever it May Be
David Strand

Building Low PIM Coax Assemblies with Consistent Dynamic Performance
Times Microwave


Measurement System Tests AESA Radar T/R Modules at High Speed
Darren McCarthy, Rohde & Schwarz

Triple Beat IMD Measurement Over 4G-LTE Bands: Can You Really Avoid the Cavity Filters?
Rafi Hershtig

Struggling with Amplifier Bias Sequencing? Try a Positive Approach
Dr. Charles Trantanella

GaN Technology Enables Gain Blocks With Muscle
Ray Baker


Multisim/Ultiboard for Low-Frequency Simulation and Layout
AWR Corporation

Optical Modulator Driver Solutions 28 Gbps EML and 32 Gbps MZ Drivers
Hittite Microwave

Filtering Modules for AWGN / IMD Test Setups for 4G LTE Bands
K&L Microwave

Remote-Controlled Handheld Analyzers: Opening Up A World
Agilent Technologies

AR's 6 – 18 GHz Solid State Amplifiers
AR RF/Microwave Instrumentation

LDMOS RF Power Transistors Serve Defense Applications
Freescale Semiconductor

Simple Circuit Resolves Very Small Temperature Differences
Analog Devices

Why Operators Are Considering E-Band Backhaul to Solve Data Capacity Issues
Richardson RFPD


Design Solution for Achieving the Lowest Possible Receiver Noise Figure
Alan Ake and Jody Skeen, Skyworks Solutions, Inc.

Using Network Analyzer Time-Domain Analysis to Verify and Troubleshoot Complex Components
Afsi Moaveni

Battle Electronics for the “Universal Soldier”
Paul Klonowski

A Topsy-Turvy World
Bob Pinato

Aerospace & Defense and Test & Measurement
Jessy Cavazos

GaN HEMT & GaAs pHEMT MMICs for Advanced mmW Systems
Leo Fong and James Schellenberg

Crystal Oscillators – Low Phase Noise Under Vibration
Liz Ronchetti

Compact Multi-channel RF Spectrum Capture and Playback System
Jim Taber


Bi-Directional Amplifier Extends Range of Data, Video, and Communications Links
Triad RF Systems, Inc.

Frequency Multiplication Techniques
Crystek Corporation

A Low Cost Pulse Doppler Radar Sensor for Short Range Commercial and Industrial Applications
E X H Consulting Services

Optimizing Clock Trees to Meet Performance and System Cost Targets
Silicon Laboratories


RF Beamforming Techniques Improve TD-LTE Cell-Edge Performance
Craig Grimley

Detecting PIM Problems in Antenna Systems and Discovering the Latest Remedies
David Strand

Aluminum Diamond Heat Spreader Demonstrates 25% Reduction in GaN Die Temperature
Kevin Loutfy

Making the Matrix
Kevin Loutfy


BlackBox Models for Discrete and Integrated Low Noise Amplifiers
Eric Marsan, Stephen Moreschi, Ambarish Roy, and Vivian Tzanakos, Skyworks Solutions, Inc.

Understanding JESD204 and JESD204B: A Primer
Jonathan Harris

Trends and Revenue Aspect of Semiconductors in Communications
Aravind Seshagirl

Reducing RF Board Space and System Prime Power with TriQuint's New GaN HEMTs, Amplifiers and Switches
Dean White and Grant Wilcox


Manufacturing Friendly Circulator with Low Insertion Loss
Brian Hartnett, Skyworks Solutions, Inc.

The Battle for Spectrum
Major Christopher S. Tsirlis, U.S. Marine Corps

The Knowledge
Jan Whitacre

Radar and Radio Range Simulation Using Fiber Optic Delay Lines
Jerry Lomurno and Joe Mazzochette

Is Your Smart Device's Internet Running Slow? Maybe it's Time to Question Your Service Provider's Wi-Fi Testing Solution
Olga Yashkova-Shapiro

Controllers: The Unsung Heroes of High-Power TWTAs and Microwave Power Modules
Mario Razo

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