This device generates gravitational waves which can be utilized as a thruster or as a communication device. It is comprised of a linear antenna array that is injected with a Radio Frequency (RF) signal. The antennas are configured to convert electromagnetic (EM) waves into gravitational waves.When the antennas are arranged in a linear phased-array configuration, a thrust is produced that allows the device to be used as a method of propulsion. Part I of this article describes the device when configured as a thruster and documents the test results.Part II will document the test results of the device when configured as a gravitational wave transmitter. If the injected RF signal is modulated with an Intermediate Frequency (IF) signal, the gravitational waves produced are also modulated. The invention can then function as a communication device by using the gravitational waves as a carrier instead of EM waves. A gravitational wave detector at the receiving end will demodulate the gravitational waves, thereby extracting the original (IF) signal.