A Two-Stage Beam-Forming Antenna Using Butler Matrix and Reconfigurable Frequency Selective Surface for Wide Angle Beam-Tilting

• Published in: IEEE antennas and wireless propagation letters pp. 1 - 5
• Main Authors: Dutta, Ranjit Kumar, Jaiswal, Rahul Kumar, Saikia, Mondeep, Srivastava, Kumar Vaibhav
• Format: Journal Article
• Language: English
• Published: IEEE 14.06.2023
• Subjects: Antenna arrays; Antennas; Beam-forming; beam-tilting; Butler matrices; Butler matrix; Freeports; PIN photodiodes; reconfigurable frequency selective surface; Reflection; Reflection coefficient

A two-stage beam-forming technique for a wide tilt angle is proposed in this letter. The proposed structure has the potential to overcome the limitations of Butler matrix-based beam-forming technique and reconfigurable FSS-based beam-forming technique, both of which normally lag behind in the presen...