Nancy Friedrich

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.

Configurable Test Platform Operates To 6 GHz
The PXI Studio measurement system encompasses the PXI 3000 Series hardware modules, PXI Studio software with measurement plug-ins, and a PXI instrument chassis. The PXI 3000 Series modules now include the following: the 3025C, a 1-MHz-to-6-GHz digital ...
Passive Components Squeeze Into Tighter Spaces
Forays into new materials and engineering techniques are enabling passive components to heighten integration and performance while downsizing to meet emerging design needs.
Calibrator Kit Pinpoints Cable Loss
Every cable has some signal loss. In precision wireless test setups, that loss must be measured and compensated for in order to obtain accurate results. Such is the goal of the True-Cable kit, which measures the loss of cables used in precision wireless ...
PCB Layout Enables Lowest Thermal Resistance
Printed-Circuit Board (PCB) layout is critical to both thermal and RF performance. It is therefore crucial that designers consider the heat source as well as how the heat will be removed before the electromechanical design is finished. Texas Instruments, ...
UHF Satcom Antenna Covers 240 To 270 MHz
Mobile and shipboard applications demand high-performance operation from the zenith down to the horizon. Typically, such coverage requires two separate antennas and a switch to select from the two. In contrast, the Model SC-303B provides full ...
Single Sideband Schottky-Diode IC Mixer Covers 180 To 196 GHz
Broadband Telecommunication services and wireless local-area networks (WLANs) increasingly depend on millimeter-wave operation. Millimeter-wave components based on galliumarsenide (GaAs) and indium-phosphide (InP) monolithic microwave integrated ...
Modern Signal Generators Simplify I/Q Modulator Characterization
In-Phase/Quadrature (I/Q) Modulators are crucial to modern telecommunications. Currently, designers are working on I/Q modulators to meet the increasing demands for transmission bandwidth and signal quality. The performance of such devices must be ...
Nonsurgical Microwave Procedure Uncovers Pregnancy Risks
During pregnancy, the physiological changes that occur can result in complications for the mother and—in turn—the fetus. At the Microwave Tomography and Materials Research Laboratory's Department of Electronics at Cochin University of Science and ...
Antenna Modeling System Checks Hearing-Aid Compatibility
By February of next year, all US wireless carriers will have to guarantee that 50 percent of their phones are hearing-aid compatible. With version 2007.4 of the Antenna Modeling Design System (AMDS), users can evaluate hearing-aid compatibility ...
Wireless Adoption Surges Despite Fears
Sitting in a Wi-Fi hotspot for a year results in receiving the same dose of radio waves as making a 20-minute mobile-phone call.
Switch IC Offers Broadband Operation To 3.8 GHz
WiMAX is inspiring new designs across the industry. A 10-W, double-pole, four-throw (DP4T), gallium-arsenide (GaAs), monolithic-microwave-integrated-circuit (MMIC) switch has now been spawned to help designers integrate WiMAX into customer premise ...
2D Tomographic Imaging Characterizes Benign And Malignant Breast Tissue
X-Ray mammography currently misses an estimated 15 percent of breast cancer. It also has trouble imaging women with dense breasts and discriminating between benign and malignant masses. As an alternative, a characterization of benign and malignant breast ...
TDR/TDT System Handles High-Bandwidth S-Parameter Analysis
In high-speed serial communications systems, a designer usually relies on a vector network analyzer (VNA) to measure S-parameters. The VNA measures input/output reflections and transmission by sequentially applying signals at various frequencies ...
Reflectarray Antenna Can Steer Main Beam To Large Angles From Broadside
Microstrip reflectarray antennas promise to provide the best features of printed phased-array and parabolic reflector antennas. Such antennas comprise a feed horn, which illuminates a flat array of reflection elements. To produce a planar phase ...
2.4-GHz Subthreshold LNA Achieves 9.8 dB Gain
Modern wireless applicationsare pushing complementary-metal-oxide-semiconductor (CMOS) devices to scale toward sub-1-µm gate lengths. For these devices to operate at higher frequencies, however, their gate-oxide thickness must be reduced and ...
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