ABSTRACT .This text introduction a kind of center frequency's ising a 400 MHz, bandwidth is 50~75 resistance transformation of the 40 MHz the design of the machine with imitate true process.All said category, use and development of the radio frequency resistance transformation machine in the text.At analysis the resistance match the foundation of the theories basic knowledge up, discuss the radio frequency resistance transformation machine of design process, then through an ADS software carry on design and imitate true, and carried on analysis summary towards imitate truely result.
Keyword:Radio frequency; Impedance matching; Smith circle diagram; VSWR(voltage standing wave ratio); ADS
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