Dr. Robert Baker, Jr. proposes a new design for an open cavity High-Frequency Gravitational Wave Detector in the GHz band, which consists of a high-quality-factor open microwave cavity and a Gaussian beam (GB) passing through a static magnetic field in free space. Essentially this effect is an inverse Gertsenshtein effect in which HFGWs are converted into electromagnetic (EM) waves when passing through a static magnetic field. Baker is regarded as the preemininent researcher in the field of High-Frequency Gravitational Wave research, and proposes this new detector model as a means of facilitating significant new potential applications for the wireless telecommunications sector.