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JFW Industries, Inc. has been designing, manufacturing, and delivering RF components and automated RF test systems for 38 years. Our manufacturing teams and engineering team operate within an ISO 9001:2008 certified quality system in order to provide quality products with manufacturing traceability and design traceability. Our commitment to our quality system has enabled JFW to become a trusted vendor for companies and militaries around the world.

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Quality

Quality

JFW is committed to anticipating and exceeding customer's requirements and expectations...

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RoHS Compliance

RoHS Compliance

Statement on RoHS Compliance by JFW Industries, Inc. (updated May 28, 2015)

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JFW Industries News

Matrix Switch for use with 75 Ohm Network Analyzers

75 Ohm Matrix Switch

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 used to fan-out connections from a 2-port 75 Ohm network analyzer to allow for automated multi-port 75 Ohm testing.  Connecting the 2X12 matrix in series with a 2-port network analyzer, creates a twelve port test set.  For all three models, the unused output ports are self-terminating at 75 Ohm impedance to keep the DUT properly impedance matched at all times.  All three models are remotely controlled via serial or TCP/IP connections.  The remote command set consists of simple ASCII formatted commands.  The remote command set for our 3.x.x firmware is available for download.  If you have any technical questions about these 75 Ohm matrix switches, please contact our engineering department for assistance.

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Identify a 2.9mm Fixed Attenuator from 2.4mm Fixed Attenuator

SMA, 2.9 mm, 2.4 mm RF connectors

With the push to 5G by wireless cellular providers, lab benches are now being occupied with a greater number of high frequency fixed attenuators with 2.9 mm (aka 2.92 mm) and 2.4 mm RF connectors.  It is important to be able to tell these RF connectors apart because 2.4 mm and 2.9 mm connectors will damage each other if mated together.  2.9 mm connectors operate up to 40 GHz.  2.4 mm connectors operate up to 50 GHz.  There are notable visible differences between SMA, 2.9 mm and 2.4 mm connectors.  SMA and 2.9 mm connectors can be mated to each other without causing damage.  Their connector threads are identical and their male/female pin diameters are mechanically compatible.  The obvious difference between a SMA female and a 2.9 mm female is the dielectric.  SMA female has PTFE dielectric and 2.9 mm has an air dielectric.  2.4 mm connectors are not compatible with SMA or 2.9 mm.  The 2.4 mm connectors have a different thread and male/female pin diameters are 56% smaller.  The RF specifications for fixed attenuators that work up to 18 GHz, 40 GHz, and 50 GHz vary greatly.  The RF specification differences can be seen with these three low power fixed attenuator models:  50HF-xxx SMA (DC-18 GHz), 50HFAR-xxx 2.9mm (DC-40 GHz), 50HFAT-xxx 2.4mm (DC-50 GHz).

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