Multiplexers & Diplexers
FD1004
DC–6 GHz Wideband Diplexer
Radars & Electronic Warfare
Highpass-lowpass diplexer designed for the challenging needs of wideband communication and EW systems from DC to 6 GHz. Two low-loss channels are diplexed with a 3000 MHz crossover; three SMA (F) ports (common input and two diplexed TX channels). Handles RF power up to 80 W CW with 1 dB max insertion loss away from the crossover region.
Frequency response
Measured S-parameters — interactive.
S11
→
–
Curve modelled from published specifications — indicative, not a measured trace.
Photos
Drawings
General
| Ports | 3 (Common + LPF + HPF), SMA (F) |
| IN/OUT Impedance | 50 Ω |
| Frequency Band | Wideband (DC–6 GHz) |
Passband
| Crossover Frequency | 3000 MHz |
| LPF Channel | DC–3000 MHz |
| HPF Channel | 3000–6000 MHz |
| Insertion Loss | 1 dB max (LPF DC–2.6 GHz, HPF 3.5–6 GHz); 4.5 dB max near crossover (2.6–3 GHz / 3–3.5 GHz) |
| Return Loss | 14 dB min, both channels |
Stopband
| Rejection | 50 dB min (LPF @ 3600–6000 MHz; HPF @ DC–2500 MHz) |
| Isolation Between Bands | 50 dB min |
Power
| Power Handling | 80 W CW |
Environmental
| Operating Temp | -40 °C to +85 °C |