The HERD family

Ultra-low-loss IR-blocking filters for superconducting quantum computing, in two generations.

HERD-2

HERD-2

2nd generation · current

Non-magnetic inline filter with ultra-low in-band loss and deep high-frequency attenuation, measured to 145 GHz. Reduces quasiparticle generation at the cold stage.

Insertion loss
<0.15 dB
Stopband
>60 dB above 70 GHz
Connectors
SMA / SMP / SMPM / SMPS
View HERD-2 →
HERD-1

HERD-1

1st generation

A non-magnetic inline filter that directs high-frequency radiation away from the signal path and into an absorptive region.

Insertion loss
<0.1 dB
Stopband
>50 dB above 60 GHz
Connectors
SMA F/F
View HERD-1 →

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