Design and Development of a New Electrically Small 3D UHF Spherical Antenna with 360° of Opening Angle in the Whole Space for RFID, WSN, and RSN Applications

<div>(a) Structure of the 3D spherical antenna with folded arms and (b) current direction along the folded arms.</div>

International Journal of Antennas and Propagation

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Figure 13

Figure 13: Design and Development of a New Electrically Small 3D UHF Spherical Antenna with 360° of Opening Angle in the Whole Space for RFID, WSN, and RSN Applications 

Figure 13 | Design and Development of a New Electrically Small 3D UHF Spherical Antenna with 360° of Opening Angle in the Whole Space for RFID, WSN, and RSN Applications 