Circuito conversor de analizadores de espectro de bajo coste en analizadores de redes escalares
2007
An ultra-low cost and high performance RF scalar network analyzer for research and educational purposes have been developed. This device is based on a low cost Schottky “zero-bias” sensor diode connected to a microstrip directional coupler to measure the reflection port and a basic spectrum analyzer with tracking generator to measure the transmission port. A high impedance video output has been added to the detector circuitry in order to make compatible this device with the usual circuitry available in a basic RF laboratory (multimeter and an educational spectrum analyzer). The able to measure the magnitude of S11 and S21 scattering parameters coupled with the ultra-low cost of the circuitry, makes this system interesting tool to use by users at any level.
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