Transcription of RF Power Amplifiers - MIT OpenCourseWare
{{id}} {{{paragraph}}}
Example: stock market
RF Power Amplifiers - MIT OpenCourseWare
The World Leader in High-Performance Signal Processing SolutionsRF IFRF Power AmplifiersMay 7, 20032RF IFOutline PA IntroductionzPower transfer characteristicszIntrinsic PA metricszLinear and Non-linear amplifierszPA Architectures Single- stage Linear PAzLoad-line theoryzTransistors size zInput and Output MatchingzSo why is this so hard? High-efficiency PAszClass A, AB, B and C amplifiers3RF IFOutline (cont.) Real-World Design ExamplezSelecting architecture, number of stageszDesigning stageszTuning: inter- stage match and output System specificationszRuggedness: load mis-match and VSWRzLinearity: spectral mask (ACPR), switching transientszNoise in receive band Power Control4RF IFPA Transfer characteristicsDefining linearity:G01 Pin(dBm)Pout(dBm)Pout= Pin+ Glinearnon.
14 RF IF PA Architectures “Gain stage” is one transistor with passive elements “Active” components often limited to 2 or 3 transistors (gain stages) in signal path Transistor design very important! zMany parallel transistors – often look like mini-circuits themselves Passive components just as important as transistors! zCircuits must be tunable to account for …
Loading..
Tags:
Information
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document: