Reconfigurable multibeam feed network for 38 GHz application

Abstract

A feed network based on substrate integrated waveguide for 38 GHz application is proposed in this article. The network consists of a 90 hybrid, a 180 hybrid, a power divider, and a switchable phase shifter. There are two input ports in the reconfigurable multibeam feed network (RMBFN) and a set of symmetrical radiation pattern will be excited by the two input ports. In addition, the other symmetrical patterns will be obtained by adjusting the different states of the switchable phase shifter. The simulated results show that the S 11 and S 22 are found to be better than −13 dB over 37-40 GHz. Meanwhile, the amplitude of the three output ports is about −6.6 AE 1 dB, and the phase difference is AE60 AE 10 or AE120 AE 10 . When the proposed RMBFN feeds for an antenna array, four different beams with the main beam pointing to the AE22 AE 3 and AE43 AE 3 are obtained.four different beams, reconfigurable multibeam feed network, switchable phase shifter

Planar dual‐polarized differentially fed multibeam patch antenna array

“…W ith the rapid development of the wireless communication, the multibeam antennas (MBAs) have been greatly developed. On account of the advantage that it can cover a wide area with a number of high directivity radiation beams, the MBAs play an important role in the fifth generation (5G) mobile communication application technologies 1–4 . After years of development, there are a lot of MBAs reported, which have a variety of structures and forms such as MBAs loaded lens, MBAs based on beamforming network 5–9 .…”

“…On account of the advantage that it can cover a wide area with a number of high directivity radiation beams, the MBAs play an important role in the fifth generation (5G) mobile communication application technologies. [1][2][3][4] After years of development, there are a lot of MBAs reported, which have a variety of structures and forms such as MBAs loaded lens, MBAs based on beamforming network. [5][6][7][8][9] These MBAs have good performance of 1-or 2-D scanning capacity, high gain and wide beam coverage.…”