Company Profile

MiniRF is dedicated to providing quality RF passive components at competitive prices for existing and emerging Broadband/CATV and Wireless Communications Systems. MiniRF is a proven leader in supplying high performance surface mount passive components. MiniRF components are found in the products of many of the world’s largest suppliers of communications products with nearly a billion units shipped.

MiniRF designs and manufactures both standard and custom transformers, couplers, splitters, mixers and chokes. We specialize in delivering quality surface mount passive components and devices. A ferrite core is found in almost every MiniRF product. The performance of MiniRF’s product depends on the magnetic properties of the core and the magnetic flux associated with the wires wrapped around it. Winding ferrite cores is a specialized manual process that is labor intensive. RF performance for these passive devices will vary with minor differences in how the wire is wound to the core. MiniRF has established a manufacturing process where details are documented from sourcing materials, assembly and all the way through 100% RF testing. All MiniRF manufacturing facilities are ISO9001 certified and its test equipment is regularly calibrated.

The overall market for broadband passive RF components is very competitive so attention to material cost and tight management of our processes are important. The experienced  management team understands this and is committed to deliver quality products at competitive prices at any volume.

To learn more about us, please visit www.minirf.com.

Contact Information:


Phone: 408-228-3533

Location:


MiniRF Inc.
46560 Fremont Blvd Unit 114
Fremont CA 94538
United States

Design and Production Challenges of Wire-Wrapped Ferrite RF Passives for Broadband Applications

The next generation of wireless and wired communications (S data & video) are reaching ever increasing frequencies and require much greater bandwidth than previous radio delivery systems. As the frequency and bandwidth requirements have risen from hundreds of megahertz to multiple gigahertz, the performance of passives also need to step up to these new performance demands. This article describes the challenges of developing higher frequency and bandwidth wire wrapped ferrite RF passives, as well as some of the ways MiniRF is addressing these challenges and manufacturing ferrites for the next generation of communications technology.

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MiniRf Product 1

Micro-Size Balun: MRFXF5713

A high performance micro-size balun saves biasing components, board space, and minimizes DC issues in a package 65% smaller than the competition.

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MRFCP0016 (002)

Coupler: MRFCP0016

The MRFCP0016 coupler (Patent Pending) is designed for applications that require very small, low cost, and highly reliable surface mount components.

 

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MRFCP6762

1.8 GHz Couplers

The MRFCP6762 16 dB coupler is flat to 1.8 GHz and provides 20 dB return loss. These 75 Ohm couplers are designed for next gen CATV systems.

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4-way Passive Splitters

4-Way Splitter: MRFSP0012

MiniRF introduces MRFSP0012. Mid-band insertion loss is typically 0.75 dB with 25 dB isolation. Amplitude balance is typically <0.1 dB while phase balance is <1° with a max. of 2.0°.

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MRFCP0015 Coupler

Coupler: MRFCP0015

The MRFCP0015 coupler is designed for applications that require very small, low cost, and highly reliable surface mount components. Applications may be found in broadband, wireless and other communications systems. These units are built Lead-Free and RoHS  compliant and feature welded wire construction for increased reliability.

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MRFXF0026

Transformer: MRFXF0026

The MRFXF0026 Transformer is designed for applications that require very small, low cost, and highly reliable surface mount components. Applications may be found in broadband, wireless and other communications systems. These units are built Lead-Free and RoHS compliant and feature welded wire construction for increased reliability. 

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MRFXF0035 photo 2

Transformer: MRFXF0035

The MRFXF0035 Transformer is designed for applications that require very small, low cost, and highly reliable surface mount components. Applications may be found in broadband, wireless and other communications systems. These units are built Lead-Free and RoHS compliant and feature welded wire construction for increased reliability. 

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Transformer: RFXF9504

RFXF9504The RFXF9504 transformer is designed for applications that require small, low cost, and highly reliable surface mount components. Applications may be found in broadband, wireless, and other communications systems.

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MRFXF5702

Transformer: MRFXF5702

The MRFXF5702 transformer is designed for applications that require very small, low cost, and highly reliable surface mount components. Applications may be found in broadband, wireless and other communications systems. These units are built lead-free and RoHS compliant and feature welded wire construction for increased reliability. S-Parameters are available on request.

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Transformer: MRFXF5732-1

MRFXF5732-1The MRFXF5732-1 Transformer is designed for applications that require very small, low cost, and highly reliable surface mount components. Applications may be found in broadband, wireless and other communications systems. These units are built lead-free and RoHS compliant and feature welded wire construction for increased reliability.

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MRFXF0032

Transformer: MRFXF0032

The MRFXF0032 transformer is designed for applications that require very small, low cost, and highly reliable surface mount components. Applications may be found in broadband, wireless and other communications systems. These units are built lead-free and RoHS compliant and feature welded wire construction for increased reliability. S-Parameters are available on request.

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2-Way Splitter: MRFSP8525

MRFSP8525The MRFSP8525 2-way splitter is designed for applications that require small, low cost, and highly reliable surface mount components. Applications may be found in broadband, wireless and other communications systems. These units are built lead-free and RoHS compliant. S-Parameters are available on request.

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4-Way Splitter: MRFSP0012

MRFSP0012The RFSP0012 4-way splitter is a low cost design for applications that require high performance, small and highly reliable surface mount components. Applications may be found in broadband, wireless and other communications systems.  These units are built lead-free and RoHS compliant. S-Parameters are available on request. Available in Tape and Reel.

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Coupler: RFCP5773

RFCP5773The RFCP5773 coupler is designed for applications that require small, low cost, and highly reliable surface mount components. Applications may be found in broadband, wireless, and other communications systems. These units are built lead-free and RoHS compliant. S-Parameters are available on request.

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2-Way Splitter: MRFSP5725

MRFSP5725The MRFSP5725 2-way splitter is designed for applications that require small, low cost, and highly reliable surface mount components. Applications may be found in broadband, wireless and other communications systems. These units are built lead-free and RoHS compliant. S-Parameters are available on request.

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Coupler: RFCP5763

RFCP5763The RFCP5763 coupler is designed for applications that require small, low cost, and highly reliable surface mount components. Applications may be found in broadband, wireless, and other communications systems. These units are built lead-free and RoHS compliant. S-Parameters are available on request.

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Transformer: MRFXF0024

MRFXF0024The MRFXF0024 Transformer is designed for applications that require very small, low cost, and highly reliable surface mount components. Applications may be found in broadband, wireless and other communications systems. These units are built lead-free and RoHS compliant and feature welded wire construction for increased reliability. S-Parameters are available on request.

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MiniImage Replacement for RFSP5722

Splitter: RFSP5722

The RFSP5722 splitter is designed for applications that require small, low cost, and highly reliable surface mount components. Applications may be found in broadband, wireless, and other communications systems. These units are built lead-free and RoHS compliant. S-Parameters are available on request.

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