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What is DANL?

Dr. Michael Simon, Application Support for Spectrum Analysis

Rohde & Schwarz

DANL or displayed average noise level is a measure used to define the sensitivity of a spectrum analyzer. The DANL specifies all the internal noise of the spectrum analyzer referenced to 1 Hz and repr...read more

What is the PTFE Knee?

Cable Assemblies Cables

H. Jobalia

HUBER+SUHNER Astrolab, Inc.

For many years, Polytetraflouroethylene (PTFE), or Teflon™ has been widely used in coaxial lines and is considered the best dielectric material due to its low attenuation and excellent electrica...read more

Essential Design Elements of Isolators and Circulators for Unique Military Requirements

Circulators Isolators

Don Carrick & Mike Hill

Skyworks Solutions Inc.

Isolators and circulators have long been used for both military and commercial applications whenever RF signal needs to be directed down a circuit path and blocked from another circuit path. To use a ...read more

What is a Faraday Isolator?

Isolators RF Basics

Editorial Team

Mar 23, 2023

A Faraday Isolator is a device that isolates the laser source from an optical system, to protect the laser source from reflections. It uses the magneto-optic rotation phenomenon to protect the laser s...read more

What are Dual-Junction Isolators?

Isolators

Editorial Team

Aug 13, 2018

A dual junction isolator is consists of two regular isolators connected back to back (in series) in a single package. Since the RF signal has to go through two isolation paths, dual junction isolators...read more

Advances in mm-Wave Isolator Design Launch Manufacturers into Stratospheric Operating Frequencies

Editorial Team

Micro Harmonics

It doesn’t take a crystal ball to know where the future of wireless is heading. With inexhaustible demand driven by 5G, 6G and beyond, ultra-high definition video, autonomous driving cars, secur...read more

What are Triple-Junction Isolators?

Isolators

Editorial Team

Feb 18, 2019

When three regular isolators are connected in a series in a single package, it is called as a triple junction isolator. These isolators are used when greater isolation is needed. The resultant forward...read more

Cryogenic-Capable Isolators Improve the Performance of Millimeter-Wave Systems by Lowering Noise Levels

Cryogenic Components Isolators

Dr. David Rizzo

Micro Harmonics

NASA-ready technology provides design engineers a new option for lowering received noise in MMW applicationsSilence is golden when it comes to filtering out unwanted reflected noise, especially in ext...read more

Solving the Issue of Reflected Waves at D Band

Millimeter Waves

Greg Rankin

Micro Harmonics

Looking to deliver reliable test, measurement and prototyping equipment for D band, led NI to THz-enabled isolators designed for NASAThe call for “more D band” has gone out. With the abili...read more

Cryogenic Faraday Rotation Isolators

Cryogenic Components Isolators

David W. Porterfield

Micro Harmonics Corporation

Faraday rotation isolators designed for room temperature operation do not work well at cryogenic temperatures. The primary cause is temperature-dependent ferrite magnetization. Figure 1 shows measured...read more

What are Cryogenic Isolators/Circulators?

Circulators Cryogenic Components Isolators Quantum Computing

What are Cryogenic Circulators/Isolators? What are their applications?

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What is a Faraday Rotation Isolator?

Isolators RF Basics

Editorial Team

Mar 23, 2023

A Faraday Rotation Isolator (FRI) is a device that utilizes the phenomenon of Faraday Rotation to ensure that optical signals are transmitted in one direction only. It is a device that transmits light...read more

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