Entries by JFW Eng Dept

4 Channel Attenuator Assembly Covering 100 MHz to 18 GHz

JFW model 50BA-032-31 SMA is a 4 channel attenuator assembly that covers 0.1-18 GHz.  Each channel consists of a solid-state programmable attenuator with attenuation range 0 to 31dB in 1 dB steps.  Each attenuator can be controlled individually or as a group.  This benchtop attenuator assembly is remotely controlled via Ethernet/RS-232 and manually via momentary […]

Introduction to Programmable Attenuator Systems

The application note is an introduction to programmable attenuators and their applications.  If you would like to discuss your application with our engineering staff please call (1-317-887-1340) or email. Applications for Programmable Attenuator Systems Military radios First responder networks Wi-Fi/MU-MIMP Cellular networks Mesh networks IoT and 5G systems Key Programmable Attenuator Specifications Frequency range VSWR […]

Certification to the ISO 9001:2015 Standard is Complete

JFW Industries, Inc is now certified to the ISO 9001:2015 standard.  Our updated ISO 9001 certificate is available for download.  JFW has operated in a certified quality management system since 1995.  Our quality system ensures that JFW manufactures quality RF attenuators and RF switches with a documented manufacturing process and traceable paperwork.  Our commitment to […]

Matrix Switch for use with 75 Ohm Network Analyzers

Three new 75 Ohm blocking matrix switch models have been added to the JFW website.  Model 75MS-029 is a solid-state 2X8 blocking matrix that operates 3-1000MHz.  Model 75MS-030 is a solid-state 2X6 blocking matrix that operates 3-1000MHz.  Model 75MS-037 is an electro-mechanical 2X12 blocking matrix that operates DC-1700MHz.  These 75 Ohm matrix switches can be […]

Power Divider/Combiner Types and Functionality

This application note covers resistive and reactive power divider/combiners.  The main goal of this app note is to help customers choose the correct power divider/combiner type for their application.  The functionality differences between the two types are discussed with example block diagrams.  The block diagram makes it easy to see why resistive divider/combiners are used for […]

RF Matrix Switch Types and Functionality

This application note discusses the four different construction types for RF matrix switches with pros and cons for each type.  Matrix switch types discussed:  blocking matrix switches, non-blocking matrix switches, super non-blocking matrix switches, and common highway matrix switches.  The functionality of each construction type is discussed with example block diagrams.  Please contact our engineering […]