by minicircuitsadmin | Apr 26, 2015 | Engineering Resources, Q/A, RF Transformers
Q: Explain the difference between DC-isolated and non-isolated transformers. A. A DC-isolated transformer is one that does not allow a DC current to pass between the primary and secondary windings. Q: Mini-Circuits transformers are tested with 50Ω systems. How do they...
by minicircuitsadmin | Apr 25, 2015 | Amplifiers, Engineering Resources, Q/A
Q. What is the effect of using a 50Ω amplifier in a 75Ω system? A. When a 75Ω load is seen from an ideal 50Ω amplifier or vice-versa, a 1.5:1 VSWR results which alters gain, output return loss, and gain flatness in real-life amplifiers. If active directivity...
by minicircuitsadmin | Apr 20, 2015 | Engineering Resources, Q/A, VCOs
Q. What type of VCO’s are available from Mini-Circuits? A. Mini-Circuits sells fundamental frequency oscillators up to 2 GHz and beyond in surface mount (models JTOS and JCOS), plug in (model POS), and connectorized (model ZOS) versions. Q. Generally, how do I...
by minicircuitsadmin | Apr 10, 2015 | Engineering Resources, Fixed Attenuators / Terminations, Q/A
Q. Many of MCL’s fixed attenuators are specified up to 1500 MHz. How will they perform at higher frequencies? A. With the exception of the 75Ω models, most fixed attenuators perform reasonably well above 2000 MHz. Please refer to data pages for actual...
by minicircuitsadmin | Mar 20, 2015 | Engineering Resources, Limiters, Q/A
Q. Please describe the spectrum at the output of a limiter. A. Since a limiter acts in a saturated mode, its output contains many harmonics of the applied input signal. The harmonic content is a function of the bias current and applied power level. Figure 1 Q. Will a...
by minicircuitsadmin | Mar 14, 2015 | Engineering Resources, Filters, Q/A
Q. Is a filter a reciprocal device? Is it possible to interchange between input and output ports? A. Yes. Filter response is unaffected as long as the source and load impedances are the specified value. Q. I intend to use an MCL 50Ω filter in a 75Ω system. What might...
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