In this study, a high-gain and dual-polarized Quad Ridged Horn Antenna (QRHA) is proposed designed to be used in Obstacle Penetrating Imaging Radar (OPIR) applications. The quad ridged design developed then optimized by using the antenna simulator software; CST Microwave Studio. parameters including center frequency, frequency bandwidth radiation pattern beam width are considered based on requi...

Broadband double-ridged guide horn (DRGH) antennas are extensively used in antenna measurement and electromagnetic compatibility interference testing, especially the 1–18 GHz DRGH which is widely accepted as a standard for this band. Certain deficiencies radiation patterns have been identified corrected by several authors, but use was still limited to frequency The incorporation of absorber mat...

Platelets corrugated horn is a promising technology for its scalability to large array. In this communication, we present the design, fabrication, measurement, and uncertainty analysis of wideband 170–320 GHz platelet that features with low sidelobe across band (<−30 dB). We also propose an accurate universal method analyze axial misalignment platelets first time. It based on mode matching (MM)...