power dividers & couplers


From broadband directional couplers, to low loss crossover couplers and TEMlineTM hybrid Couplers, you will find that all models feature high power handling, multiple octave bandwidths and low loss and meet MIL-E-5400 Class 3 or equivalent screening. API Technologies’ Directional Couplers feature multi-octave broadband performance, high power handling of up to 1500 watts and low flatness as low as +/- 0.4 dB.

API Technologies Power Dividers are designed with high isolation and exceptional phase balance in mind. Our Wilkinson style power dividers yield superior isolation between the output ports. Our printed circuit board power dividers are a low cost solution. Stripline and microstrip styles can be produced without the high cost of lumped inductors or capacitive elements.

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Superior Performance

  • Our Wilkinson style power dividers offer unparalleled performance including excellent phase balance, extremely low loss and superior amplitude tracking.
  • Our communications-dual band quadrature combiners feature low loss suspended stripline designs, a surface mount package, low passive intermod design, high power handling, lower cost packaging, low insertion loss, and type N connectors.
Multiple Designs Available

  • Starting at 500 MHz, these high performance directional couplers offer bandwidths as wide as 2-18 GHz and are available in both standard and custom configurations.
  • Directional couplers are available as octave band and broadband and features SMA connectors.
  • Our High power quadrature combiners feature power handling of 1000 watts.
Quality Assurance

  • We perform functional testing on 100% of our parts before shipment.
  • power dividers and high power quadrature combiners meet MIL-E-5400 class 3
  • Quadrature combiners are screenable to MIL-P-23971
  • Directional couplers are screenable to MIL-C-15370 or equivelant

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Wirline® and Wirepac®

Wireline and Wirepac quadrature couplers and hybrids, developed and patented by Sage Laboratories, consist of a pair of wire center conductors surrounded by a continuous dielectric insulator and shielded by a drawn or extruded metallic jacket. The resultant construction has the physical attributes of semi-rigid coaxial cable and the electric performance of a precision TEM mode parallel coupled line coupler.

Electrical Performance includes frequency independent quadrature output phases, low VSWR, low insertion loss, high directivity and freedom from intermodulation products.

PDFWirepac Guide

PDFWireline Guide


Octave Band Performance

  • Wireline products feature the performance characteristics of an octave band 3 dB quadrature hybrid.
  • Wireline products feature a formable construction similar to semi-rigid cable.
Low Loss

  • The Wireline coupler insertion loss is defined as input power minus the sum of all output powers.
  • Insertion loss is typically less than 0.3 or 0.4 dB over the frequency range.
  • Wirepac insertion loss is typically less than 0.2 dB over the operating frequency range.
Value Added Features

  • API has long standing aerospace and commercial heritage with the Wireline and Wirepac product lines.
  • Our Wireline, tin plate and bare finish products are RoHS Compliant. Product is EAR99.

  • 3 dB Quadrature hybrid coupler
  • Directional coupler
  • Single balance mixer
  • Power divider/combiner
  • Diplexers
  • Digital Broadcast Transmitters
  • IFF

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