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ARTICLES

Minimizing PIM Generation From RF Cables and Connectors

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SantronUnderstanding mechanical tolerances, coaxial design details and connector materials used in cable assemblies helps produce communications equipment with the lowest levels of passive intermodulation (PIM).
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Head to Head: NI PXIe-5665 Versus Traditional Boxed Instruments

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NIThis paper discusses the setup details for the demo shown in this video Head to Head: NI 5665 vs. Traditional Boxed Instruments. The demo compares the performance and speed of the NI PXIe-5665 with the Agilent PXA. Rather than comparing the datasheet specifications of both instruments, this video compares the two instruments while performing real- world test scenarios.


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50V LDMOS

An ideal RF Power Technology for ISM, Broadcast and Commercial Aerospace Applications
Freescale Semiconductor, RF Division
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RF laterally diffused MOS (LDMOS) is currently the dominant device technology used in high-power RF power amplifier (PA) applications for frequencies ranging from 1 MHz to greater than 3.5 GHz. This paper will include device and design considerations that specifically target enhancing ruggedness performance. The features of the products using this platform will also be presented.


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AWR’s Visual System Simulator Co-simulates with NI’s LabVIEW for Enhanced Signal Processing Capabilities

White Paper, AWR Corp.
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Accurate Co-Simulation of Surface-Mount Capacitors in Shunt Configurations

Ledezma (USF), Weller (Modelithics), Robin (Motorola)
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Bandwidth vs. Efficiency Trades in RF Amplifier Design

Greg Ramon, QinetiQ North America
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Integrated LNA Serves Base Station Needs

Chin-Leong Lim
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Joint Analysis of Traffic and Channel Power Distributions in 3G Wireless Telecommunications Networks

Sean Cordone, Vice President of Engineering
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RFID objects monitoring in space bounded by metallic walls.

S. Korneev, S. Alyakrinsky.
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Considered problem is the reading of multiple RFID tags in the region of space, which is bounded by metal walls and has resonant radio-engineering properties. Obtained results show that it is possible to get reliable automated monitoring of items with tags by forming of a local electromagnetic field (EMF) with the help of slow-wave structures (SWS).
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Turn up the Heat: An Electrical-Thermal MMIC Design Flow

White Paper
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DOCUMENTS AND FILES

Cost-efficient and Extensible RF Spectrum Monitoring & Management

August 18, 2014
Learn how to leverage high-performance portable analyzers, open software, and PC Integration for field analysis and remote deployments.

New Mobile Device App by AR RF/Microwave

August 18, 2014

AR RF/Microwave's new mobile app is available as a free download from Apple iTunes and Google Play. This application is a quick and easy tool to access various content for AR‘s products. Home screen icons give you easy access to basic and full product descriptions, app notes, AR’s literature library, YouTube videos, contact information and social media icons. For more detail and to download the app, visit www.arww-rfmicro.com/html/ar-moblie-app.asp.

Evolutionary & Disruptive Visions Towards Ultra High Capacity Networks

August 18, 2014
With many groups now beginning to consider the drivers for 5th Generation wireless networks, this timely document includes contributions from 20 IWPC member organizations from around the world and aims to advance certain understandings and concepts for adoption in wireless systems to be deployed beyond the year 2020. This 89 page document covers a broad range of 5G topics with emphasis on mm-wave.

Increase Power Amplifier Test Throughput with the Keysight PXIe Vector Signal Generator and Analyzers

August 18, 2014
Read this application note for an overview of the key challenges in testing power amplifiers and front end modules with envelope tracking. Learn about how to reduce test cost, achieve fast throughput, and maintain high test quality using the modular Keysight M9381A PXIe VSG, and the M9391A or M9393A PXIe VSA, as well as how to perform high speed harmonic test using the M9393A PXIe VSA.

Simplified Millimeter Wave Intermodulation Distortion Measurements

July 16, 2014
The theories and operations of intermodulation distortion (IMD) are well understood. It is one of the key metrics in categorizing the linearity of active and passive electronic components and devices. There are various instruments available from leading equipment manufacturers to perform IMD measurement in the RF and microwave region - two signal generators, a power combiner and a spectrum analyzer; a vector network analyzer with a signal generator and a power combiner. However, extending the IMD measurement to the millimeter wave and sub-millimeter wave frequency ranges is quite another matter.

Cryogenic Probing Advances Development of New Technologies and Materials

July 16, 2014
A newly developed superconducting RF MEMS varactor provides additional capabilities for digital transmission, including tunable filters for improved signal selectivity and noise rejection. Development of the superconducting circuitry at cryogenic temperatures takes advantage of advanced probe station technology from Lake Shore.

Practical Considerations for Low Noise Amplifier Design

July 16, 2014
Low noise amplifiers (LNAs) play a key role in radio receiver performance. The success of a receiver's design is measured in multiple dimensions: receiver sensitivity, selectivity, and proclivity to reception errors. The RF design engineer works to optimize receiver front-end performance with a special focus on the first active device. This paper considers device- and board-level variables that affect LNA performance and confront the engineer at each level of design in accommodating the various requirements of specific applications.

Thermal Management of High Frequency Circuits by Blind Hole Technology

July 16, 2014
In this paper, we present a versatile and robust fabrication method to build circuit boards used for RF and microwave telecommunication devices over a large frequency of interest from MHz up to several tens of GHz range.

Output Standing Wave Ratio (SWR) Test Using the TEGAM 1830A RF Power Meter

June 17, 2014
Do you have confidence that your 50 MHz reference port Standing Wave Ratio (SWR) is within specifications? It is important to have this confidence and by adhering to these procedures, you can be certain that your 50 MHz reference is within the manufactures tolerance!

Radar Waveforms for A&D and Automotive Radar

June 17, 2014
This White Paper provides a view on radar waveforms for Aerospace and Defence and commercial radar systems. Waveforms such as pulse and pulse-Doppler signal, continuous wave and frequency shift keying waveforms are described. It also shows continuous waveform trends designed for specific needs and application differences of continuous wave radar compared to pulse radar systems.

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