An alternative method to generate chirp signals in SFCW-radars based on sigma-delta fractional synthesizers which allow to get high resolutions in a great bandwidth and with high linearity, necessary qualities for the systems SFCW.
Coaxial networks like Satellite Master Antenna Television (SMATV) or Cable Antenna Television (CATV) there are a lot of devices on serial connections, and it is very important to compute return loss performance of the complete system. When there are many devices in cascade connection, each output of individual device is connected to the input of other. Then the matching depends of both individual impedances and length of interconnection coaxial cables, so that it is possible to evaluate the performance through uncertainty mismatch expression based in S parameters of the devices. Therefore, the overall prediction of the return loss of the system is hard without an accurate characterization of the interconnections.In this paper we propose an analytical solution for individual devices specifications to ensure the return loss performance in all points of the network. The solution is independent of the length of connections. In addition, we present a practical graphic to calculate the solution and a very simple expression with less than 0.61 dB of error for devices return losses specifications bigger or equal than 10 dB
An alternative method to generate chirp signals in SFCW-radars based on sigmadelta fractional synthesizers which allow to get high resolutions in a great bandwidth and with high linearity, necessary qualities for the systems SFCW.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.