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  2. UHF connector - Wikipedia

    en.wikipedia.org/wiki/UHF_connector

    A typical SO-239 UHF female, properly hooded, has an impedance bump of about 35 ohms. The length of the bump is typically 1 ⁄ 2 inch, where the female pin flares to fit over the male pin. This bump can be mitigated by using a honeycomb dielectric in the female pin area. Many VHF/UHF amateur operators use special UHF females that maintain a 50 ...

  3. Stub (electronics) - Wikipedia

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

    Stubs can match a load impedance to the transmission line characteristic impedance. The stub is positioned a distance from the load. This distance is chosen so that at that point, the resistive part of the load impedance is made equal to the resistive part of the characteristic impedance by impedance transformer action of the length of the main ...

  4. List of RF connector types - Wikipedia

    en.wikipedia.org/wiki/List_of_RF_connector_types

    Mini-UHF connector, a smaller and much newer design than the standard UHF; SMA connector A 50 ohm screwed connection. The 0.9mm centre pin is the same diameter as the centre of RG402 Coax so that connections to that cable can be made with no discontinuity, forming the pin from the coax itself. Good to 18 GHz

  5. RF connector - Wikipedia

    en.wikipedia.org/wiki/RF_connector

    Various popular RF connectors Electronic symbols for the plug and jack coaxial connectors Time-domain reflectometry shows reflections due to impedance variations in mated RF connectors. An RF connector (radio frequency connector) is an electrical connector designed to work at radio frequencies in the multi-megahertz range.

  6. Impedance parameters - Wikipedia

    en.wikipedia.org/wiki/Impedance_parameters

    Z-parameters are also known as open-circuit impedance parameters as they are calculated under open circuit conditions. i.e., I x =0, where x=1,2 refer to input and output currents flowing through the ports (of a two-port network in this case) respectively.

  7. Horn antenna - Wikipedia

    en.wikipedia.org/wiki/Horn_antenna

    Corrugated conical horn antenna used as a feed horn on a Hughes Direcway home satellite dish. A transparent plastic sheet covers the horn mouth to keep out rain. A horn antenna serves the same function for electromagnetic waves that an acoustical horn does for sound waves in a musical instrument such as a trumpet.

  8. Hirose U.FL - Wikipedia

    en.wikipedia.org/wiki/Hirose_U.FL

    They are designed to have a characteristic impedance of 50 ohms. The mated connection is only 2.5 mm high and takes as little as 9 mm 2 (3.0 × 3.1 mm 2) of board space. [6] [7] [8] Much like many other electronic components, Hirose U.FL connectors were protected by patents [1] and trademarks. However, compatible third party connectors are ...

  9. Characteristic impedance - Wikipedia

    en.wikipedia.org/wiki/Characteristic_impedance

    The input impedance of an infinite line is equal to the characteristic impedance since the transmitted wave is never reflected back from the end. Equivalently: The characteristic impedance of a line is that impedance which, when terminating an arbitrary length of line at its output, produces an input impedance of equal value. This is so because ...