Mobile communications have been undergoing a generational change every ten years or
so. However, the time difference between the so-called “G's” is also decreasing. While fifth …

Multiple antenna technologies have attracted much research interest for several decades
and have gradually made their way into mainstream communication systems. Two main …

Beamforming is a signal processing technique to steer, shape, and focus an electromagnetic
(EM) wave using an array of sensors toward a desired direction. It has been used in many …

This article presents a multibeam dual circularly polarized (CP) Luneburg lens (LL) antenna
based on quasi-icosahedron (QICO) models. The lens is sliced into multiple shells and each …

In this article, a compact, wideband Yagi-Uda antenna and its phased array antenna is
optimized by a multi-objective antenna for the millimeter-wave (mmWave) band of fifth …

Mobile communications have been undergoing a generational change every ten years or
so. However, the time difference between the so-called" G's" is also decreasing. While fifth …

Besides the prohibitive cost, complexity, and baseband scale, the development of millimeter-
wave (mmWave) digital-beamforming fifth-generation (5G) frontends is facing a physical …

This paper presents a physical frequency-diverse multimode lens-loaded cavity, designed
and used for the purpose of the direction of arrival (DoA) estimation in millimetre-wave …

Different from the conventional single-beam beamspace non-orthogonal multiple access
(NOMA) scheme, where the users only within the same analog beam can be served by the …

This paper presents a millimeter-wave direction of arrival estimation (DoA) technique
powered by dynamic aperture optimization. The frequency-diverse medium in this work is a …