by minicircuitsadmin | Apr 12, 2015 | Engineering Resources, Fixed Attenuators / Terminations, Terms
Fixed attenuator A device used to reduce power levels of a signal by a fixed amount with little or no reflections. The output signal is attenuated relative to the input signal while the input and output impedance is maintained close to 50Ω (or 75Ω) over the specified...
by minicircuitsadmin | Apr 11, 2015 | Engineering Resources, Terms, VCOs
Voltage Controlled Oscillator (VCO): This is an oscillator designed so the output frequency can be changed by applying a voltage to its control port, also known as its tuning port. Frequency Tuning Characteristic: Frequency versus tuning voltage performance for a...
by minicircuitsadmin | Mar 14, 2015 | Engineering Resources, Phase Detectors, Terms
Phase detector Provides a DC output voltage proportional to the difference in phase between two RF input signals. A double-balanced mixer can perform as a phase detector when the LO and RF signal inputs are at the same frequency. DC offset The small amount of voltage...
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...
by minicircuitsadmin | Mar 11, 2015 | Engineering Resources, Frequency Doublers, Terms
Frequency doubler A non-linear device that efficiently produces an output that is twice the frequency of the signal applied to its input. Conversion loss Conversion loss is a measure of the difference in power level between input signal F1, and output signal F2...
by minicircuitsadmin | Aug 16, 2008 | Engineering Resources, Switches, Terms
Insertion Loss The insertion loss is the attenuation between input and output ports of the switch when embedded in a circuit, when the switch control voltage corresponds to the “ON” state of the output port. For insertion loss measurement techniques see...
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