A unit cell design for construction of quasi-optical power combining oscillator arrays

At millimeter and sub-millimeter-wave frequencies individual solid-state devices have a limited ability to produce enough power for system applications. Therefore, it is desirable to combine the power generated from many individual devices. Here, the design and fabrication of a unit cell for construction of large quasi-optical power combining oscillator arrays will be presented. The oscillator unit cell was designed at 10 GHz and fabricated on a Duroid substrate. The power generated is radiated into free space via a circular slot antenna. The measurement results obtained at 10.02 GHz are presented in this paper.