Design of transmittarray feed by filtering dielectric antenna for 5G

Abstract

In this article, a high gain transmittarray antenna for 5G is presented. The transmittarray antenna is composed of an ultra‐thin transmitarray and its feed structure of the filtering dielectric antenna. The ultra‐thin transmitarray based on cross‐shaped metasurface is designed to realize the gradient distribution of phase covering the range of 0~2 π. The compact low temperature co‐fired ceramic dielctric antenna array feed by subtrate integrated waveguide powder divider is exploited as the feed of the transmittarray. The experimental results show the metasurface of the structure has obvious convergence effect on the radiation energy of the antenna, and the directivity of the antenna is greatly enhanced. The sidelobe energy is effectively suppressed and the peak gain of the antenna is increased from 11.47 dB to 22.8 dB at the central frequency of 28.0 GHz. The high gain and small size make the transmittarray antenna suitable for application in 5G wireless communication.

Enhancing 5G antenna performance by using 3D FSS structures

“…20 More recently, meta-structures have been used to improve antenna performance for the fifth generation (5G) systems operating in the 24 to 30 GHz band. [21][22][23][24][25] In Reference 26, a multilayer FSS was used for tilted beam Vivaldi antenna in order to enhance the gain at 28 GHz. The gain of this Vivaldi antenna was limited to 5 dBi and an enhancement of 4 dBi was achieved.…”

2-D Beam Focusing Control Based on Passive Frequency Selective Surface (FSS)

“…The transmitarray has the design methodology controlling wave front of the source by the FSS and the total phase of the transmitarray is the sum of the phase of wave radiated by the source and the transmission phase of the FSS. The transmitarray can be utilized to a high gain antenna in the far-field region and a beam focusing in the near-field region [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. To achieve the high gain antenna and the beam focusing, the wave fronts of transmitarray have flat and parabolic shapes, respectively, as shown in Figure 1.…”