A planar dual-polarized phased array is proposed for 5G cellular communications. The has the properties of dual-polarization, wideband, and quasi-endfire radiation, which printed on one side a single-layer substrate. design contains two eight-element subarrays including horizontally polarized endfire dipole antennas vertically periodic slot antennas, employed PCB ground plane mobile platform. B...

Approaches for instantaneous passive source localization using a towed horizontal receiver array in a random range-dependent ocean waveguide are examined. They include: (1) Moving array triangulation, (2) array invariant, (3) bearings-only target motion analysis in modified polar coordinates via the extended Kalman filter, and (4) bearings-migration minimum mean-square error. These methods are ...

This letter presents a wideband compact dual-polarized antenna with endfire radiation pattern for the fifth-generation millimeter-wave (mm-wave) applications. The achieves –10 dB S 11 bandwidth of 16.5% (25–29.5 GHz). has thickness 1.6 mm an...

In this communication, a substrate integrated waveguide (SIW) end-fire antenna array with zero clearance is proposed for fifth-generation (5G) mobile applications using machine learning-assisted optimization. particular, novel impedance matching architecture that involves three arbitrary pad-loading metallic vias investigated and adopted the element. Due to stringent design requirements, locati...

In this communication, a high-gain phased array antenna with wide-angle beam-scanning capability is proposed for fifth-generation (5G) millimeter-wave applications. First, novel, endfire, dual-port element dual functionalities of radiator and power splitter designed. The composed substrate integrated cavity (SIC) dipole based on it. resonant frequencies the SIC can be independently tuned to bro...

Time delay of arrival (TDOA) estimation between signals input to two or more microphones plays an important role in speaker localization. Most methods employ a linear array of two or more microphones and use the generalized cross correlation method or eigenspace analysis (AEDA) methods. TDOA estimation with linear arrays, however, is highly sensitive to estimation errors when the signals arrive...

The theory, computer simulations, and experimental measurements are presented for electrically small two-element supergain arrays with near optimal endfire gains of 7 dB. We show how the difficulties of narrow tolerances, large mismatches, low radiation efficiencies, and reduced scattering of electrically small parasitic elements are overcome by using electrically small resonant antennas as the...

Loudspeaker arrays are increasingly being used in a variety of applications where there is a restriction on the electrical power consumption and the array must be robust to changes in the acoustic environment. Previous work has demonstrated that the efficiency and robustness of a two-source endfire loudspeaker array can be improved by acoustically coupling the two loudspeakers via a common encl...

In this paper, a new beamforming technique for planar two-dimensional arrays is proposed optimizing the sidelobe levels (SLLs) by using recursive multibeam pattern subtraction (MPS) technique. The MPS beamformer demonstrated and its convergence to lower SLL values investigated controlled. performance analysis has shown that can effectively reduce down less than −50 dB relative mainlobe level ut...

This paper presents a very low-profile ( $0.105\lambda _{0}$ at 28 GHz) dual-band dual-polarized millimeter-wave phased array for 5G smartphones. The element is based on two distinct antennas to realize orthogonal linear polarizations...