Abstract: The acoustically excited antennas based on the piezo-electric effect (PE) have been shown to reduce the size of the long wave communication system transmitter (Tx) to 10 −4 of the wavelength ...

Abstract: A dual-mode radial uniform circular array (UCA) is proposed for orbital angular momentum (OAM) generation and in-band full-duplex (IBFD) systems. The presented configuration is composed of ...