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2. Balun - Wikipedia

   en.wikipedia.org/wiki/Balun

   For other uses, see Balun (disambiguation). This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (October 2008) (Learn how and when to remove this message) Pair of AC&E 120 Ω twisted pair (Krone IDC) to 75 Ω coaxial cable balun transformers. Actual length is about ...

3. Coaxial cable - Wikipedia

   en.wikipedia.org/wiki/Coaxial_cable

   Coaxial cable, or coax (pronounced / ˈ k oʊ. æ k s /), is a type of electrical cable consisting of an inner conductor surrounded by a concentric conducting shield, with the two separated by a dielectric (insulating material); many coaxial cables also have a protective outer sheath or jacket.

4. Attenuator (electronics) - Wikipedia

   en.wikipedia.org/wiki/Attenuator_(electronics)

   For instance, attenuators used with coaxial lines would be the unbalanced form while attenuators for use with twisted pair are required to be the balanced form. Four fundamental attenuator circuit diagrams are given in the figures on the left. Since an attenuator circuit consists solely of passive resistor elements, it is both linear and ...

5. Audio and video interfaces and connectors - Wikipedia

   en.wikipedia.org/wiki/Audio_and_video_interfaces...

   S/PDIF is an audio-only format carried over electrical coaxial cable (with RCA jacks) or optical fibre . Note that there are no differences in the signals transmitted over optical or coaxial S/PDIF connectors—both carry exactly the same information. Selection of one over the other rests mainly on the availability of appropriate connectors on ...

6. Stub (electronics) - Wikipedia

   en.wikipedia.org/wiki/Stub_(electronics)

   About 1/8 wavelength long: (left) 200 MHz stub is 19 cm, (right) 300 MHz stub is 12.5 cm 10 kW FM broadcast transmitter from 1947 showing quarter-wave resonant stub plate tank circuit In microwave and radio-frequency engineering, a stub or resonant stub is a length of transmission line or waveguide that is connected at one end only.

7. Impedance matching - Wikipedia

   en.wikipedia.org/wiki/Impedance_matching

   In many cases, there is a need to use the same circuit to match a broad range of load impedance and thus simplify the circuit design. This issue was addressed by the stepped transmission line, [ 1 ] where multiple, serially placed, quarter-wave dielectric slugs are used to vary a transmission line's characteristic impedance.

8. Galvanic isolation - Wikipedia

   en.wikipedia.org/wiki/Galvanic_isolation

   The same applies to magnetic amplifiers and transductors. While transformers are usually used to step up or step down the voltages, isolation transformers with a 1:1 ratio are used mostly in safety applications while keeping the voltage the same. If two electronic systems have a common ground, they are not galvanically isolated. The common ...

9. Low-noise block downconverter - Wikipedia

   en.wikipedia.org/wiki/Low-noise_block_downconverter

   One or more metal pins, or probes, protrude into the waveguide at right angles to the axis and act as antennas, feeding the signal to a printed circuit board inside the LNB's shielded box for processing. The lower frequency IF output signal emerges from a socket on the box to which the coaxial cable connects.