5G SIW-Based Phased Antenna Array With Cosecant-Squared Shaped Pattern

Abstract

In this article, a concept of a phased antenna array based on substrate integrated waveguide (SIW) technology for 5G base stations is proposed. The array has a cosecant radiation pattern in the vertical plane for uniform illumination in a sector area. The array itself consists of 16 SIW traveling wave subarrays of 12 slot-coupled microstrip patch antennas associated with a pair of reflection-canceling vias and phasing elements to get the tapered distribution both in amplitude and phase for the cosecant-shaped radiation pattern. The array is designed to be operational at 28 GHz with a bandwidth of more than 10%, a candidate mm-wave frequency band for 5G. The phased antenna array supports wide-angle scanning of +/−60 • in azimuth and exhibits good active impedance properties. The array design is successfully verified experimentally.

A High Isolation, Low-Profile, Triple-Port SIW Based Annular Slot Antenna for Millimeter-Wave 5G MIMO Applications

“…Also, with the 2 port excitation, the proposed antenna can achieve a similar antenna gain as [14], [16]. But the antennas demonstrated in [6], [8], [15], [17], [18] still have higher gain than the proposed antenna. At this point, it should be noted that these are antenna arrays, not a single antenna element.…”

“…Furthermore, the isolation between ports is not high enough compared to recently published ones. In [6], the authors proposed a substrate-integrated waveguide (SIW) based mm-wave antenna array for 5G base stations. This design requires a separate antenna element for each port, increasing the overall size of the array.…”

“…In this paper, a triple-port, single element, mm-wave SIW VOLUME x, 2022 based annular slot antenna is presented. The antenna structure is easy to fabricate compared to [2], [4]- [6] since it has only a single dielectric layer. Furthermore, it has more compact size than [6], [7] due to its circular shape and adopting SIW as the transmission line type.…”

“…The antenna structure is easy to fabricate compared to [2], [4]- [6] since it has only a single dielectric layer. Furthermore, it has more compact size than [6], [7] due to its circular shape and adopting SIW as the transmission line type. The high isolation between the ports enables the proposed antenna to be compatible with 5G mmwave in-band full-duplex (IBFD) systems as a monostatic STAR antenna.…”

Integrated Microstrip Antenna Reflector Based on SIW for 5G Networks

“…Puskely et al [2] proposed an antenna array based on substrate integrated waveguide (SIW) technology for 5G base stations. The proposed antenna array has a cosecant radiation pattern in the vertical plane for uniform illumination in the sector area.…”