QuinStar Technology's QIF series fullband isolators and modulators are
available in six waveguide bands covering the frequency range of 26.5 to 110 GHz. These
isolators are Faraday-rotation type ferrite devices with bandwidths covering a full
waveguide band.
Series QIF
isolators provide a minimum of 25 dB of isolation and typically more than 30 dB across
most of the waveguide bands. The isolators and modulators can handle power levels from one
Watt at W-band to two Watts at Ka-band. They provide isolation over wider bandwidths than
single-junction waveguide isolators. The wide bandwidth of these isolators makes them
ideally suited for broadband or swept frequency applications and wideband measurement
systems. |
Series
QIM modulators provide an on-off ratio of more than 25 dB across most of the waveguide
band. They also provide an isolation of greater than 20 dB in reverse direction when
biased in the low insertion loss state. A magnetic bias is applied through a solenoid coil
wound around the ferrite core. An optional external driver unit (model QCM-0000-AA) applies
current to the coil to bias the ferrite to a minimum insertion loss state. Rise time from
10% to 90% is typically 3µs. |
