![]() These include characterizations of nonlinear distortion, noise, and dynamic range. ![]() This chapter begins with examples of module usage and then develops metrics that characterize microwave modules. These modules can consist of simply receiver and transmitter amplifiers with an antenna switch or can contain advanced phase and amplitude control functionality for realizing active phased array antennas. where transmitter and receiver share the same antenna. The system frequency plan must be developed that trades-off cost and performance while minimizing interference. Transmit-Receive T/R modules are a necessary part of a radio where transmitter/receiver duplexing is needed, i.e. Modules are interconnected by transmission lines, and bias settings and matching networks must be designed. Foremost the system designer must have knowledge of available modules and be prepared to design a module itself if this results in competitive performance or better manages cost. In system design modules are chosen for their dynamic range, noise performance, DC power consumption, and cost. ![]() Economics necessitate that since modules are expensive to design that they be developed for multiple applications. Most microwave design uses modules such amplifiers, integrated circuits (ICs), filters, frequency multipliers, and passive components to create systems.
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