Newsletter | November 12, 2019

11.12.19 -- Spotlight On Oscillators | EMI

 
Featured Article
Ceramic Feedthrough Filters: Winning The Finite EMI Fight
By Robert Meilleur, Corry Micronics, Inc.

EMI is a serious concern for devices that are externally powered or require signal wires that extend outside the device. The wires that connect to power sources, or I/O points, can act as antennas that will allow EMI to be received and enter the device, causing it to perform improperly. 

Spotlight On Oscillators
Understanding Pulsed Phase Noise Measurements
Application Note | Rohde & Schwarz GmbH & Co. KG

This application note focuses on phase noise measurements for pulsed RF carriers. The paper addresses some of the physical limitations relating to pulsed phase noise measurement and introduces the capabilities of the new Rohde & Schwarz FSWP phase noise analyzer.

Acceleration Sensitivity Characteristics Of Quartz Crystal Oscillators
Article | By Steve Fry, Greenray Industries, Inc.

This paper can help you predict and plan for the frequency errors your oscillator may experience as a result of acceleration forces.

What The Heck Is An OCXO Oscillator?
Article | By Rob Rutkowski , Bliley Technologies, Inc.

OCXO stands for Oven Controlled Crystal (Xtal) Oscillator. OCXOs are the top performing type of quartz crystal oscillators at the expense of power. Other types of quartz crystal oscillators include TCXO, VCXO, and just plain XOs. 

Measuring Ultra-Low Phase Noise, 100 MHz OCXOs With Cross-Correlation
Application Note | Berkeley Nucleonics Corporation

This application note describes how to best use the BNC 7000 Series phase noise tester to measure the phase noise of very low-noise reference sources. The given example measures 100 MHz OCXOs from NEL frequency control using the two-channel cross-correlation technique.

Understanding Low-Noise, Spread-Spectrum Crystal Oscillators
White Paper | Abracon Corporation

The present trend is to control EMI at the source, using a single clock oscillator with spread-spectrum technology. This white paper discusses the theory of using low-noise, spread-spectrum crystal oscillator technology and how it can be used to better control EMI in new technologies.

Resources
Frequency Control Products And HDTV Broadcasting Applications
Application Note | CTS Electronic Components

High-Definition Television (HDTV) enhances the viewing experience by offering wider pictures with much more detail and clarity than analog broadcasting video. This application note provides an overview of the fundamentals of HDTV broadcasting and touches on possible product solutions to enhance it.

Design And Modeling Of A Solid State Transmit/Receive Module For Radar Applications
White Paper | National Instruments (NI)

This white paper overviews various solid state semiconductor technologies for T/R module development and describes a design methodology that includes the modeling/analysis of a T/R module.

Phase Stability, Loss Stability, And Shielding Effectiveness
White Paper | W. L. Gore & Associates

This white paper addresses phase stability, loss stability, and shielding effectiveness in cable assemblies exceeding 20 feet. It also includes performance information on a GORE microwave RF assembly typically used in a test environment where coiling/uncoiling and random movement would occur.

High-Power Switched Filter Bank Options For RF Communications And Electronic Warfare (EW) Applications
Article | By Justin Wells, NuWaves Engineering

Switched filter banks are beneficial to radio frequency (RF) communication systems and are utilized in both receivers and transmitters to reduce signal interference from harmonics, spurious emissions, strong signal interferers, and to limit noise power for optimized system performance.

Featured Multimedia
Integrating A PLL With An OCXO
 

Here at IMS 2019, Param Nampoothiri of MtronPTI addresses this challenge and walks us through the solution of integrating a PLL with an OCXO to get rid of the jitter in your system measurements.

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