Title: System architecture for a 65-95 GHz, mm-wave instrument for space based solar event monitoring observation Abstract: This presentation is progress work for the Ph.D research study and it deals with comparing different system architectures for a compact, low cost mm-wave sun observation instrument. Single conversion and double conversion superheterodyne receivers are evaluated with regards to performances of commercially available components. State-of-the-art (SOTA) component parameters that were used are alternatives where commercially off-the-shelf (COTS) components are not available. thus based on SOTA parameters, components will be designed using IBM process. The system covers a frequency range of 65 to 95 GHz and it investigates new integration techniques on planar substrates.