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Pi/T Attenuator Calculator and Equations by.
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#Used network kit series
Unpopulated series positions may require 0 Ω jumpers. Contact conductance ensures DC connectivity, and the capacitive coupling between the SMA body and enclosure provides AC connectivity.ĭiagrams show only the component positions used in the specified circuit. The enclosure makes contact by friction, and can be secured with a cyanoacrylate adhesive (Superglue) or epoxy. For SMA models an extruded rectangular enclosure is provided. A toothed washer and nut secure the enclosure and provide DC contact. A gender changer may be used to create a M/M style for other configurations.įor BNC models a metal tube enclosure provides protection and shielding. Male/male styles are available for the SMA π and T configurations only.
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The kits can be populated with as few as one series component, or as many as 28 series and shunt components, enabling a wide range of applications.įive available connector styles (BNC M/F, BNC F/F, SMA M/F, SMA F/F, and SMA M/M) and a low-profile design enable inline insertion into your transmission line, with or without cables. Other examples include a feed-through decoupling capacitor, using one shunt capacitor to make an ideal low pass filter for noise reduction at I/O ports. In this case, we constructed a simple DC Restorer using a coupling capacitor and a shunt Schottky diode to ground. In another example, we level-shifted a -6V to +10V pulse to 0V to +16V for driving a high impedance circuit. In one example, we easily fabricated a 24 dB attenuator with non-standard impedance for the interface between a vacuum tube output and a TTL input circuit, using a two-stage design with discrete SMT resistors. With the addition of a Bias Tee, active device test fixtures can be built as well. The double-sided footprint (identical on both sides of the PCB) allows non-standard resistor, inductor, and capacitor values to be fabricated easily and economically. Three PCB designs (π, T and multi-pole) enable easy construction of nearly any series and or parallel network. They can be used to build commonly-used circuits, such as a 50 Ω shunt termination, or to build one-of a-kind fixtures not commercially available.
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