transmission line transformer

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transmission line transformer

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Antennas : Baluns

Antennas : End-Fed : End Fed Half Wave Antenna
  • 1:49 unun for end fed half wave antennas - 1:49 UNUN using two stacked FT240-43 cores for end fed halfwave antenna. To match the end fed half wave antenna to the coaxial feeder, it is necessary to have a matching network or transmission line transformer.
    [ Hits: 386 | Votes: 10 | Rating: 8.1 ]
Antennas : Feed Lines Antennas : Feed Lines : Coax Stubs
  • The Quarter-wave stub - The Quarter-wave stub can be used for many purposes. If it is left with an open end it can be used as a notch filter to attenuate certain frequencies. A quarter wave length of a transmission line can also be used as an impedance transformer, to know more about the Quarter-wave impedance transformer
    [ Hits: 134 | Votes: 1 | Rating: 8 ]
Antennas : Theory : Impedance matching
  • Matching with one-twelfth-wavelength feed line - Matching with a half wave or wuarter wave coaxial cable is pretty well known, but an existing 1961 system to do that with two one-twelfth-wavelength transmission lines.
    [ Hits: 540 | Votes: 1 | Rating: 10 ]
Manufacturers : Baluns
  • CWS ByteMark - CWS ByteMark's Baluns (Balanced to Unbalanced) and Ununs (unbalanced to unbalanced) transformers are developed jointly with Dr. Jerry Sevick, W2FMI, who is known worldwide for his work on transmission line transformers
    [ Hits: 1042 | Votes: 3 | Rating: 4.33 ]
Software : Circuit Design
  • FT CALC 1.3 - Ferrite Toroidal Core HF Calculator - This EXCEL Program Worksheet calculates the safe operating conditons for a toroidal transformer operating between 1 and 50 MHz. Manufacturer data for complex permeability, magnetic dimensions, and saturation flux density must be available. Some core types which are commonly used in amateur transmission are included. The program produces limiting winding voltages for linear operation and temperature rise over the range of frequencies and power specified.
    [ Hits: 283 | Votes: 1 | Rating: 2 ]
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