A Raspberry Pi Controlled Antenna System for Switchable Tilted-twin Beams

A complete antenna system controlled by Raspberry pi is presented for providing switchable tilted-twin beams. The antenna system is composed of a circular metal disk and sixteen T-shaped parasitic elements which are proximity-coupled to the disk. The open and short states of the T-shaped elements are obtained by using a switching circuit consisting of sixteen Single Pole Single Throw (SPST) switches. The SPST switches are controlled by a Python-based Graphical User Interface (GUI) running on a Raspberry Pi. The antenna provides sixteen switchable tilted-beams by changing the location of the open and short states of the T-shaped elements.

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