Rigid Coaxial Transitions


High power rigid coaxial line RF components like Power Combiners, Directional Couplers, RF Circulator and Rigid Coaxial line sections are integral parts of any High-power RF system. To characterize/qualify these high-power RF components, their accurate low power RF measurements are required. These RF measurements are evaluated with the help of Vector Network Analyzer (VNA). For these RF measurements to be precise, accurate Coaxial Transitions are required depending on coaxial line size of RF component. A family comprising of 3-types of Coaxial Transitions (for 1 5/8 inch, 3 1/8 inch and 6 1 /8-inch rigid coaxial lines) have been designed and developed with operating frequency range from 300 MHz to 700 MHz. Depending upon application, any type of transition may be useful.


The developed Rigid Coaxial Transitions, offer several advantages:

  • Low thru line VSWR (≤ 1.1)
  • Low insertion loss: ≤ 0.05 dB
  • Wide operating frequency range (300 MHz to 700 MHz)
  • Integration – Three choice of EIA flanges -1 5/8 inch or 3 1/8 inch or 6 1/8-inch, easy to integrate in High power RF Systems.
  • Compact form factor –light weight and compact size due to conical design