RF/Microwave Components

R&K QPSK Modulators (QM Series)

R&K’s QM series products are semi-custom QPSK (Quadrature Phase Shift Keying) modulators, composed of a passive mixer, a quadrature hybrid, and a power divider/combiner.

The model numbers and their specifications listed in the table are some examples of previously manufactured products. Both RF frequency and IF frequency can be customized based on the customer’s requirement as long as they are within our technical capability.

As our standard specification, RF frequency range of 5 MHz to 1000 MHz and IF frequency range of DC to 50 MHz can be covered.

Product List

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Model Number Frequency (MHz) INSERTION LOSS (dB) AMPLITUDE BALANCE (dB) PHASE BALANCE (deg) VSWR Data Sheet
RF IF Max Max Max Max
QM5IFL-0S 5(BW 10%) DC-0.25 12 0.5 5 2.0 Download
QM500IFM-0S 500(BW 10%) DC-10 12 0.5 5 1.6 Download
QM950IFH-0S 950(BW 10%) DC-50 12 0.6 5 2.0 Download