MSH subharmonic mixers

Millitech series MSH subharmonic mixers operate at second harmonic of the local oscillator frequency. Hence, the local oscillator frequency is one-half of the RF in the applicable waveguide band. These mixers offer the advantage of a lower frequency local oscillator while achieving noise figure typically between 5 and 9 dB.

Electrical Specifications (Note 1)

Model	MSH-08-102	MSH-08-118	MSH-06-134	MSH-06-150
RF frequency range (GHz)	92 - 112	108 - 128	124 - 144	140 - 160
LO frequency(GHz)	51 (Note 3)	59 (Note 3)	67 (Note 3)	75 (Note 3)
Harmonic number	2	2	2	2
Noise Figure (dB) (typ) (Note 2)	8.0	8.0	8.0	8.0
IF frequency range (GHz)	0.5-10.0	0.5-10.0	0.5-10.0	0.5-10.0
LO power level (optimum)	6 dBm	6 dBm	6 dBm	6 dBm
LO waveguide	WR-15	WR-15	WR-12	WR-12

 

Model	MSH-05-166	MSH-05-183	MSH-04-250
RF frequency range (GHz)	162-170	173-193	240 - 260
LO frequency(GHz)	83	91.5	125
Harmonic number	2	2	2
Noise Figure (dB) (typ) (Note 2)	5.5	7.0	9.0
IF frequency range (GHz)	0.1-4.0	0.5-10.0	0.5-10.0
LO power level (optimum)	5 dBm	6 dBm	6 dBm
LO waveguide	WR-10	WR-10	WR-8

1) Custom products available for other operating parameters and options. Please contact Millitech for details.
2) Noise figure is measured double side-band with IF amplifier included
3) LO can be tuned at Millitech to +/- 5% from this value. RF will adjust accordingly.
4) The DC input (typical) for all models is 0.1A @ 15V