A Double-layer Transmitarray Element Based on Complementary FSS Structure

In this paper, a novel transmitarray element is reported for millimeter wave applications. Novel double-layer FSS structure is designed for simplicity purpose. To augment the element's transmission performance, complementary structure element are proposed by combining patch and slot type element together. With this novel configuration, the phase compensation range of new transmitarray element is improved significantly, compared with other FSS designs. The element performance are simulated by a full-wave commercial software. The numerical results demonstrate a satisfactory performance for a low-cost high-performance transmitarray element design at 60 GHz.