Nancy Friedrich

Nancy
Friedrich
Editor-in-Chief,
Microwaves & RF

Nancy Friedrich began her career in technical publishing in 1998. After a stint with sister publication Electronic Design as Chief Copy Editor, Nancy worked as Managing Editor of Embedded Systems Development. She then became a Technology Editor at Wireless Systems Design, an offshoot of Microwaves & RF. Nancy has called the microwave space “home” since 2005.

Articles
BiCMOS VCO Competes For W-Band Applications
Typically, millimeter-wave applications in the 75-to-100-GHz W-band requiring active devices have been considered the territory of III-V compound semiconductor technology. With fT/fMAX frequencies above 150 GHz, however, newer silicon- ...
MIMO Test System Performs Measurements To 6 GHz
MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO) techniques are rapidly becoming more popular for enhancing radio performance in the presence of noise and interference. To cover both the R&D and production testing of next-generation RF communications ...
Wireless Distribution System Eliminates Dispersion In Clock Networks
AS SYSTEM OPERATING frequency and projected die size increase, it has become more difficult to distribute clock signals across a chip. The resulting problems include larger R-C delays, tighter skew and jitter tolerance, and signal dispersion ...
GaN HEMT Amplifier Delivers 80-Percent PAE At 2 GHz
COMPARED TO THEIR gallium-arsenide (GaAs) counterparts, gallium-nitride transistors can offer significant performance improvements. GaN HEMT transistors in particular are suitable for Class F amplifiers, as they have a high fmax compared to the ...
Gain A Better Understanding Of Antenna Radiation Plots And Their Uses
ANTENNA RADIATION PLOTS show a quick picture of an antenna´s overall response. To many individuals, however, radiation plots appear very confusing. The problem is that each antenna supplier and/or user has different standards and plotting ...
Commercial Radios Make Leap From Single Carrier To MIMO
COMMERCIAL RADIO TECHNOLOGY is moving away from single-carrier technologies, in which one digital symbol is transmitted at a time. At the heart of the new broadband connection is a modulation scheme called Orthogonal Frequency Division ...
SiGe Bipolar Broadband Amplifier Boasts 3-dB Bandwidth Above 84 GHz
IN TODAY’S HIGH-SPEED communications systems, wideband amplifiers are created through a variety of techniques. Recently, engineers from Austria’s Technical University Vienna began working with designers from Infineon Technologies (Munich, ...
Mobile WiMAX Dominates Broadband Landscape
Although various demonstrations of the IEEE 802.16e-2005 standard are proving its viability, technologies like UWB will be called upon to bring broadband into the home.
Multilayer Press Speeds PCB Prototyping
IN THE CREATION of custom or prototype printed-circuit boards (PCBs), key factors often include speed, security, and convenience. The MultiPress S microprocessor- controlled, benchtop multilayer lamination press vows to satisfy all of these ...
CATV Amplifiers Target 1-GHz Networks
A FAMILY OF GALLIUM-ARSENIDE (GaAs) cable-television (CATV) hybrid amplifiers recently welcomed the addition of two multi-chip modules (MCMs). These modules boast feature bandwidth of 40 to 1000 MHz for high output capacity. The maximum noise ...
LNA Modules Promise Noise Down To 1.8 dB
Bridging applications ranging from broadband test equipment to aerospace and defense systems, a line of lownoise- amplifier (LNA) modules covers up to 18 GHz in bands. The NEL- 0618T620-5MH broadband LNA, for example, covers 6 to 18 GHz. It delivers at ...
HTS Filters Undergo Mechanical Tuning
HTS filters are known for their low insertion loss and high out-of-band rejection. Yet the performance of these filters may be negatively impacted by the thickness of the HTS film, dielectric-constant variations, and more. Tuning work is therefore ...
Combine Resources To Increase Reach
My prediction is that American Technical Ceramics cannot help but be slightly changed by this acquisition.
Negative-Resistance Cell Benefits Millimeter-Wave CMOS VCO
Many advanced communication and sensor systems include millimeter-wave voltage-controlled oscillators (VCOs) as key components. Recently, such devices have been realized in CMOS technology. Compared to III-V compound devices or ...
RF Synthesizer Integrates VCOs For Operation To 5 GHz
Equipment manufactures have been increasingly demanding space and cost-efficient solutions for radio applications with frequencies in the microwave range. A single-chip RF synthesizer with integrated voltagecontrolled oscillators (VCOs) is planning to ...

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