Products | RFP Systems

Transformers

Three families. Type H covers 2 to 30 MHz, the high-power line runs 1 to 80 MHz, and Type U goes out to 300 MHz. All of them handle input, output, and interstage matching in solid-state push-pull amplifiers, and they work single-ended too.

Power handling runs from a couple hundred watts to well past 1 kW. Ratios are configurable. Windings come in TFE insulated wire or coax cable, and the high-power parts can be had with all-metal heat sinks.

RF400 / 600 / 800 / 1000 RF2061 / 2067 / 2077 1:1 to 25:1 up to >1 kW 61 / 67 / 77 ferrite

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RFP Systems Type H RF transformers with brass tube windings on the bench — Type “H” · 2–30 MHz

High-power RF transformer cores with brass tube windings, 1 to 80 MHz — High power · 1–80 MHz

Type U broadband RF transformers, 2 to 300 MHz — Type “U” · 2–300 MHz

Assorted RF transformers and matching components built to customer specification — Built to spec

Splitters and Combiners

All ports are 50 ohms. Isolation is 30 dB minimum, VSWR stays under 2:1 from 2 to 50 MHz, and ratings run from 600 W up to 5 kW.

Balancing resistors aren't included, but every unit has provisions for them. Fit them and a failed amplifier drops you to reduced power. Skip them and the output goes to zero.

2-port · 600 W / 1 kW 4-port · 1.2 / 2 / 5 kW Wilkinson 50 Ω all ports 30 dB min. isolation

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RFP Systems four-port RF splitter and combiner assembly with labeled inputs — 4-port · 50 Ω · 30 dB isolation

Radial Combiner

Our highest-frequency, highest-power part. A radial combiner covering 300 MHz to 3 GHz, rated to 16 kW pulse and 4 kW CW, for solid-state systems that need many devices summed into one port with low loss.

This is the flagship of the line and the reason a program working well into the microwave range still has one list to call. Built to your port count and your mechanical envelope.

300 MHz – 3 GHz 16 kW pulse 4 kW CW 50 Ω ports radial architecture

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Low Impedance Coaxial Cables

For the matching networks where 50-ohm cable won't do. Five stock types, TC-12 through TC-24, running from 10.77 to 26.79 ohms.

Small OD, low loss, and it holds up in high-power systems, test setups, and distribution networks. Full dimensions are below.

TC-24 / 22 / 20 / 18 / 12 10.77 – 26.79 Ω OD 0.095″ – 0.164″

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RFP Systems low impedance coaxial cable — 10.77 – 26.79 Ω

Cross-section drawing of low impedance coaxial cable showing diameters A, B, C and D — Cable cross-section · diameters A through D

Type	Dia. A	Dia. B	Dia. C	Dia. D	Impedance
TC-24	0.095	0.066	0.043	0.021	26.79 Ω
TC-22	0.102	0.071	0.049	0.029	21.69 Ω
TC-20	0.110	0.079	0.058	0.037	18.59 Ω
TC-18	0.120	0.088	0.070	0.047	17.06 Ω
TC-12	0.164	0.133	0.110	0.084	10.77 Ω

All diameters in inches. A = jacket OD · D = center conductor.

Custom Design

When the standard part doesn't get there, we build to your spec. Unusual impedance ratios, odd form factors, a frequency range nobody stocks.

Send the drawing and the requirement. We quote it against thirty years of tested configurations, which usually saves you time before it saves you money.

5Ω / 12.5Ω / 25Ω environments any quantity no ITAR / EAR sold direct

Custom-built RF transformers and matching components to customer specification — Special orders to customer spec

Let's talk

Need help or have questions?

Tell us the band, the power level, the impedance ratio, and the footprint you have to fit. We'll tell you what it takes to match it, usually within a day.