Dual-Band Shared-Aperture Multiple Antenna System With Beam Steering for 5G Applications

Abstract

This brief presents a high-efficiency shared-aperture multiple antenna system. Unlike general shared-aperture antennas, the proposed antenna system with the size of 0.384× 0.384×0.171λ 3 makes high reuse the aperture in the two respective frequency bands, and the antenna structures of the two bands can each generate positive mutual enhancement for their radiating characteristics in the two bands. The flat Luneburg lens can realize beam steering capability for mm-wave antenna from 25.5 to 29.5 GHz with the gain of 19.3 dBi and improve the wide-angle scanning matching impedance for the Sub-6 GHz antenna from 3.2 to 3.45 GHz with the gain of 6.2 dBi. Meanwhile, as the radiating patch of the Sub-6 GHz antenna, the meta-surface can reduce the focal distance of the lens and maintain the high gain of the mm-wave antenna. Hence, a compact antenna system can achieve beam steering capabilities (up to 112°) in the Sub-6 GHz band and (up to 56°) mm-wave band with high gain, respectively. And the port isolation of the proposed antenna system between two frequency bands is generally better than 25 dB and even up to 40 dB at the Sub-6 GHz band. As reported in the simulated and measured results in a linear array, the antenna system shows good radiating performance with a dual-polarization state. Hence, the proposed multiple antenna system is a good candidate for 5G applications because of the high-efficiency, beam steering with high gain and full 5G band.

Wide Band Beam Steering Digital Metasurface Reflectarray Antenna for Millimeter Wave Applications

“…9(b). The 'Z d ' in the equivalent circuit represents the transmission line characteristic impedance of the substrate and can be calculated using (1). The equivalent values of inductance 'L' and capacitance 'C' are calculated using ( 5) and ( 6) [20]:…”

“…The millimeter-wave communication/ 5G communication system such as (28 GHz and 38 GHz frequency band) is one of the possible solutions. Highly directive and compact millimeter-wave antennas are required for millimeter-wave communication to achieve higher values of signal-tonoise ratio (SNR) [1], [2]. The highly directive mm-wave antennas can be designed using metasurfaces.…”

A Low-Profile Shared Aperture Antenna for FR1 and FR2 5G Frequency Bands

“…In [18], a dual-band dual-polarized magnetoelectric dipole antenna for the FR1 and FR2 frequency bands is proposed. In [19], a metasurface antenna is integrated with a slimmed flat Luneburg lens, to obtain the desired gain at mm-wave with a single patch antenna. A metasurface is employed also in [20], where it acts as antenna in S-band and as a partially reflective surface (PRS) in Ka.…”

Fractal Patch Antenna based on Crystal Photonic applied to Intelligent Transportation Systems in the 40 GHz Millimeter Waveband

“…quency ranges of 5G New Radio (NR). This frequency band has received a lot of attention due to its short range efficient coverage and high bandwidth [14,15,16], and consists of the sub-millimetre wave bands and mm Wave frequency bands within (24.25-52.6) GHzto support enhanced mobile broadband (eMMB) and ultra-reliable low-latency communications (URLLC). The use of the FR2 frequency range for the 5G of mobile phones causes many changes in the antenna systems in mobile phones.…”