75-80GHz WR-12 Waveguide Isolator 18dB Isolation 0.8dB Insertion Loss VN-WGISO-7580-WR12

75-80GHz WR-12 WAVEGUIDE ISOLATOR

• High reverse isolation (typically 20–30 dB)
• Built‑in internal termination (no external load needed)
• Improved source match and VSWR

1. Identify the forward direction –
   A WAVEGUIDE ISOLATOR is marked with an arrow or label indicating the allowed transmission direction.

2. Connect source to input port –
   Connect the signal source (e.g., magnetron, amplifier, or oscillator) to the input port of the WAVEGUIDE ISOLATOR.

3. Connect load to output port –
   Connect the antenna, transmission line, or measurement device to the output port of the WAVEGUIDE ISOLATOR.

4. **Never reverse a WAVEGUIDE ISOLATOR –
   A WAVEGUIDE ISOLATOR will severely attenuate (typically >20 dB) if connected in reverse; it must be installed in the correct orientation.

5. Flange matching –
   A WAVEGUIDE ISOLATOR requires the same flange type (UG, CPR, cover, or choke) as the adjacent waveguide components.

6. Power rating verification –
   Before operating a WAVEGUIDE ISOLATOR, verify both its average power and peak power handling capabilities.

7. No external termination needed –
   Unlike a circulator, a WAVEGUIDE ISOLATOR has its isolated port internally terminated, so no external WAVEGUIDE LOAD is required.

                             VN-WGISO-7580-WR12.pdf