6G energy‐efficient systems based on arrays combined with dielectric lenses

Abstract

It is demonstrated that combining phased array antennas with dielectric lenses constitutes a suitable solution to increase the energy efficiency in next‐generation communication systems. A dielectric lens is designed to increase the gain of an array antenna working in the 3GPP n257 band (26.5–29.5 GHz). The simulated results demonstrate that the dielectric lens increases the gain between 0.4 and 1.3 dB in a large scanning range from 0° to 60° at 28 GHz; meaning that the output RF power can be decreased by up to 26% for a same equivalent isotropic radiated power required from the base station.

2D Ray Tracing Model for Multilayer Dielectric Dome Arrays With Inner Reflections

“…The combination of dielectric lenses and arrays, known as dielectric dome antennas, is a promising antenna solution for the next generation of radio access systems and satellite communications [27]- [33]. These antennas can be used to enhance certain properties of phased arrays, such as their field of view [7], [26], to modify their radiating performance to suit different scenarios [34], or to reduce the power consumption of power amplifiers to achieve a specific Equivalent Isotropic Radiated Power (EIRP) value [35]. When the goal is to increase the operating scanning range, the dome introduces the phase variation required to deflect the beam in the desired direction [36], and due to the vertical dimension of the lens, the effective aperture will increase.…”