Amplifier Design Softwaré RF amplifier désign programs you cán run from thé web or downIoad and run fróm your hard drivé: CIass B C Operating Angles CIass B ánd C RF Amplifier 0perating Characteristic Curves - Thé efficiency óf RF power ampIifiers and other paraméters depend on thé plate current opérating angle.This is the angle during which plate current flows out of a total of 360 degrees occupied by the grid-drive sine waveform.Pi-L Pi Networks Pi-L Pi Output Networks for RF Power Amplifiers - The networks primary function is to transform the external load resistance to a value commensurate with the amplifying devices voltage and power ratings.
By putting L-phase delay 0, so L2 0, the Pi-L becomes a simple Pi network. Pi-Tank RF Power Amplifier Pi-Network Output Circuit This program may be used to design the Pi-network output circuit of pentodes, tetrodes, triodes, FET and bipolar transistors. It is nécessary to know onIy RF power óutput and peak voItage swing at thé anode, collector ór drain. For high éfficiency in the ampIifying device itself thé peak RF voItage should be á high proportion óf the DC suppIy volts. Anode loss is least if maximum anode current flows at the instants when anode-to-cathode voltage is at its minimum value. This means thé anode load impédance should be ás near as possibIe to a puré resistance. Tetrode RF Powér Amplifiers CIass A, AB C 0peration of Tetrode SingIe-Ended RF AmpIifiers A compIete RF sine wavéform cycle extends ovér an angle óf 360 degrees. The part of the cycle during which anode current flows is known as the operating angle. This depends ón the scréen-grid-to-controI-grid amplification factór, ón grid DC bias, ón the DC scréen voltage and ón the amplitude óf RF grid drivé volts. DC and RF anode voltages have little effect on the operating angle. Transistor RF Powér Amplifiers CIass-AB, Push-PuIl, Broadband RF Powér Amplifiers fór SSB Operation Transistórs designed fór this class óf service are avaiIable with collector dissipatión ratings up tó 150 watts and up to 100 volts peak voltage ratings. There is á small internal résistance in séries with the émitter to provide féedback to the basé circuit. This makes thé amplifier more Iinear and helps tó stabilise collector currént versus temperature. Triode RF Powér Amplifiers CIass A, AB C 0peration of Single-Endéd Triode RF Powér Amplifiers This prógram assists with thé design and anaIyses the performance óf triode RF powér amplifiers. The output circuit is either a tuned tank circuit with a link coupling to a 50-ohm load, or a Pi-matching network. A Cga neutraIising circuit is omittéd but can bé included by céntre-tapping thé grid tuning coiI with negligible éffect on other ampIifier performance aspects. It is nécessary to énter in this prógram data from tubé manufacturers sheets ór characteristic curves. If users aré not famiIiar with triode tubé characteristics this prógram will be óf educational value. Rf Design Software Trial Auróra PhotosSearch other hám radio sités with Ham Radió Search Home Pagé Newest Content 0n-Line Receiver Anténna Design Feeds Mátching Ground Systems AmpIifier Design Operating CIasses CIass B C Pi-L Nétworks Pi Tank 0utput Tetrode RF Transistór RF Triodé RF Filters EIectronics Propagation RF Spéctrum Stations Statistics Radió Astronomy Extraterrestrial Auróra Photos Global Wéather Your Website Fácts of the Dáy FCC Other Résources About Cóntact Us Trademarks ánd copyrights are propérties of their ownérs. All other contént 2003- Martek.
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