Transcoupler / duplexer / TR switches

NMR Service offers custom-made transcoupler modules, also known as duplexer or transmit-receive (TR) switches, for NMR, NQR, ferromagnetic NMR, and broadband applications. Please do not hesitate to contact us for additional details.

Transcoupler

  • NMR and NQR applications
  • Up to 1.3 kW RF pulse power (50 ms)
  • VSWR < 1.2
  • Available in a transcoupler and preamplifier set

Input frequencies (modules):

0.5 – 1.0 MHz 30 – 50 MHz 550 – 650 MHz
1 – 2 MHz 50 – 80 MHz 650 – 750 MHz
2 – 3 MHz 80 – 150 MHz 185 – 210 MHz
3 – 5 MHz 150 – 250 MHz 275 – 310 MHz
5 – 9 MHz 250 – 350 MHz 370 – 410 MHz
9 – 14 MHz 350 – 450 MHz 460 – 510 MHz
14 – 30 MHz 450 – 550 MHz 700 – 800 MHz

Active transcoupler

  • Ferromagnetic NMR and broadband applications
  • Frequency range: 30 – 900 MHz

Low power model:

  • Max. 10 W, min. isolation 26 dB, max. insertion loss 0.4 dB, switching time <1 µs

High power model:

  • Max. 300 W, min. isolation 38 dB, max. insertion loss 0.4 dB, switching time <1 µs