Three‐dimensional printed millimetre wave dielectric resonator reflectarray

Abstract

Reflectarray antennas have attracted extensive attention due to their low loss, high gain, compact volume, and their excellent abilities to control the radiated beam. The use of dielectric resonators as the reflectarray elements minimises the ohmic loss and the coupling between elements. This study uses fused deposition modelling (FDM) three‐dimensional (3D) printing rapidly prototyping a low cost and light‐weight dielectric resonator reflectarray. The demonstrated reflectarray is composed of 625 3D printed dielectric resonator elements to control the reflected phase over the reflector surface. The total size is 12 × 12 cm2 and the mass is 67 g. Measurements show that this reflectarray provides 28 dBi gain at 30 GHz when offset fed by a Ka‐band horn antenna. This work demonstrates the potential of FDM for millimetre wave (mm‐wave) applications. The new 3D printing approach can be deployed for high‐gain mm‐wave antenna fabrication with significantly reduced labour time and material costs.

A single‐layer Ka‐band broadband reflectarray antenna using log‐periodic elements

“…For high‐gain applications, reflectarray antennas, which have virtues of low‐cost consume, control phase independently, simplified feed network, and planar structure, have received increasing attention, whereas phased array antennas and parabola antennas were often used in the past years . As a result of the above‐mentioned advantages, fruitful reflectarray antennas are studied in recent years, such as beam‐scanning reflectarrays, multibeam reflectarrays, multiband reflectarrays, dual‐reflectarrays, resonator reflectarrays, conformal reflectarrays, and so on . Furthermore, reflectarrays are the one with a very high prospective for the fifth generation (5G) wireless communication system .…”

“…1 As a result of the above-mentioned advantages, fruitful reflectarray antennas are studied in recent years, such as beamscanning reflectarrays, multibeam reflectarrays, multiband reflectarrays, dual-reflectarrays, resonator reflectarrays, conformal reflectarrays, and so on. [2][3][4][5][6][7][8][9] Furthermore, reflectarrays are the one with a very high prospective for the fifth generation (5G) wireless communication system. 10,11 In the 5G communication system, wideband behavior is required due to the pursuit of higher data rates, which is supported by the fast switching mechanisms.…”

A Narrow Beam, Beam Steerable and Low Side-Lobe Reflectarray Based on Macro Electro-Mechanical Technique

“…In this regard, reflectarray antenna has been introduced as a hopeful technique [5][6][7]. Also, their popularity increases because of their capability of implementation with new technologies [8,9].…”

Design and its state‐of‐the‐art of different shaped dielectric resonator antennas at millimeter‐wave frequency band

“…This is mainly attributed to the fact that DRAs do not suffer from conduction losses and characterize by high radiation efficiency, when the feed is excited properly. For bringing a new horizon, an overview of basic shapes DRAs and a complete state‐of‐the‐art for mm‐wave DRAs are presented, as a comparative focus. Then, a working methodology in the form of design, simulation, and analysis of basic shaped DRAs at 60 GHz mm‐wave frequency band are reported.…”