by minicircuitsadmin | Nov 15, 2015 | Engineering Resources, Modulators / Demodulators
Mini-Circuits offers QPSK (quadrature phase-shift keying) and I&Q modulators from 10% bandwidth to as much as 5:1 octave span. So there’s no longer any need to gather double-balanced mixers and 0° and 90° hybrids to assemble “in-house” QPSK or...
by minicircuitsadmin | Nov 12, 2015 | Engineering Resources, Modulators / Demodulators, Q/A
QPSK Modulators Q: What is the difference between a bi-phase modulator and a quadrature (QPSK) modulator? A. The bi-phase modulator has two phase states, 0° and 180°, modulated by switching polarity of the dc voltage at the control ports. The basic elements in a QPSK...
by minicircuitsadmin | Mar 13, 2015 | Engineering Resources, Modulators / Demodulators, Terms
QPSK Quadrature phase shift keying modulator Quadrature phase-shift-keying (QPSK) modulators are four-port devices with RF-in, RF-out, and two data input ports. A bipolar pulse signal is applied at data ports to produce an RF output signal phase-modulated by 0...
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