RADITEK Newsletter - Coaxial Directional Couplers
RADITEK Newsletter January 22, 2016
RADITEK specializes in Design, Development, Manufacturing of "HIGH VOLUME / LOWEST COST" Wireless and Microwave Components and Sub Assemblies

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COAXIAL DIRECTIONAL COUPLERS


Directional couplers are used for sampling a signal, sometimes both the incident and reflected waves.
A directional coupler has four ports, where one is regarded as the input, one is regarded as the "through" port and one is regarded as the "coupled" port (where a fixed fraction of the input signal appears, usually expressed in dB), and one is regarded as the "isolated" port, which is usually terminated.
  • Design for Low Passive Intermodulation Distortion (PIM)
  • Design capabilities from sub-MHz to 20 GHz
  • Standard Octave Bands (2-4GHz, 3-6GHz, 4-8GHz, 6-12GHz, 9-18GHz)
  • Multi Octave Band (6-18GHz)
  • Stripline and lumped elements (ferrite)
  • Low (< 1 watt), Medium and High power (up to 250 watts)
  • Coupling values available: 3, 5, 6, 7, 10, 15, 20 and 30-dB
Coupler 500MHz to 6GHz
Click Picture for web page

Covers 500MHz to 6GHz
100 Watts
20dB Coupling 

Link to Additional Resource
Coupler 130MHz to 520MHz
Click Picture for web page
 
Covers 130MHz to 520MHz
50 Watts
6dB Coupling       








Wide Band Plot
 
Wide Band
Covers 300MHz to 20GHz
10 & 20 dB Coupling


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Link to Additional Resource
Coupler 100MHz to 1_000MHz
Click Picture for web page
 
Covers 100MHz to 1,000MHz
200 Watts on main line
35 & 40 dB Coupling

Dual directional
Cavity design
 
 

 

Link to Additional Resource
Coupler 120MHz to 6GHz
Click Picture for web page

Covers 120MHz to 6GHz with +/- 1.5dB flatness.
!00 Watts
20dB Coupling



Taper layout allows for many-octave bandwidth.
  
 
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Link to Additional Resource

Continuous coverage of 300 MHz to 2.7 GHz
Coupler 300 MHz to 2.7 GHz
Click Picture for web page
15dB, 20dB & 30dB Coupling, 150 Watts
10dB Coupling, 100 Watts
6dB Coupling, 60 Watts
Values from 5 to 30dB possible
High directivity (20dB min)
 
 
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Link to Additional Resource

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