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Custom Septum Polarizer Design      [Close]

CMI has developed a range of Septum Polarizers from 2 to 200 GHz for converting between both sense of circular polarization and linear. Each device is precisely designed for optimum performance, size, and manufacturability. By combining precision CAD tools, design techniques, and precise fabrication, CMI can produce these high performance devices with no tuning screws. This leads to improved power handling, very low PIM, and the elimination of bench tuning.

Depending on the application, these Septum Polarizers can be manufactured by direct machining/EDM or by copper electroforming in a single piece Construction with integral flanges for high mechanical strength and very low PIM.

Typical Septum Polarizer Performance
  C-Band Ku-Band Ka-Band V-Band
Bandwidth 15% 5% 5% 2%
Return Loss (dB) >30 >35 >35 >35
Isolation (dB) >25 >35 >35 >35
AR (dB) <0.25 <0.1 <0.1 <0.1
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