The design, integration and test results of a 77 GHz GaAs monolithic transmitter specifically optimized for low cost, large volume automotive collision avoidance systems is presented.Greater than +15 dBm of output power has been achieved at the output waveguide intexface across a 1 GHz bandwidth using monolithic chips exclusively. This module, due to its small size, light weight and low production cost, is a significant advance in MMW technology from traditional waveguide hybrid approaches and it now makes collision avoidance radars affordable.
This paper will present the design methodology and test results of several GaAs monolithic circuits (MMICs) specifically designed for 77 GHz collision avoidance radars. In addition, test data for an integrated transmitter is presented, along with projected 1995 cost tradeoffs between fundamental (77 GHz VCO using 0.15 micron pseudomorphic HEMTs) and multiplied (38.5 GHz VCO used with 0.25 micron power MESFET amplifiers and a multiplier) transmitter approaches.
This paper will examine markets, competing technologies and required production costs of 77 GHz automotive radars. These products will be offered to the market a few years from now and will represent the largest opportunity ever offered to the millimeter-wave (MMW) industry. To succeed in this business, an entire industry, primarily focused in the past on expensive small volume military applications, has to be reengineered to success-fully design and manufacture low cost, large volume parts.
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.