Four-Port Rectangular Monopole Antenna for Uwb-Mimo Applications

Abstract

This paper proposes a four-port rectangular monopole antenna for ultra-wideband multipleinput multiple-output (UWB-MIMO) applications. The proposed antenna was designed by using step etching on the ground plane and arrow-shaped slot etching on a radiating patch to enhance bandwidth and improve performances. The homogeneous elements and angular variation techniques were applied to reduce mutual coupling between multiple antenna elements. The structural simulation technique used Computer Simulation Technology (CST) program to analyze the antenna characteristics such as reflection coefficient, group delay, mutual coupling, envelope correlation coefficient, and radiation patterns. The measured results were found to cover a frequency range of 3.1-10.6 GHz for UWB communications. The envelope correlation coefficient for the MIMO system was obtained under 0.001 which is less than the specific parameters of UWB-MIMO antennas. The radiation pattern was bidirectional. Also, the efficiency of the four-port antenna was more than 85.70%.

Quad-Port Multiservice Diversity Antenna for Automotive Applications

“…1. The proposed antenna covers multiple bands, including UWB, whereas other antennas reported in the literature [38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53] operate on a single wideband frequency. 2.…”

Design and Performance Analysis of a Compact Quad-Element UWB MIMO Antenna for Automotive Communications

“…In [17][18][19][20][21], different slots and stubs were used to improve the isolation between the antenna elements. In [22][23][24][25][26][27][28][29][30][31][32], different MIMO antenna designs were reported with the UWB frequency range. In addition, it is important to investigate the characteristics of the antennas installed on a large metal body for the vehicular environment [33][34][35][36].…”

“…The proposed MIMO antenna performs better in terms of the DG, the TARC, and the MEG, whereas in [11,15,16,22,24,32] the DG of the reported antenna designs was not investigated.…”

Four-Element CPW-Fed Uwb Mimo Slot Antenna With High Isolation and Triple Band-Notched Characteristics

“…UWB antennas with band-notch characteristics have been presented in [9][10][11][12][13][14][15][16][17][18]. In [9], a twoelement MIMO antenna with UWB performance is presented, and a T-shaped strip is loaded at the middle of antenna to improve isolation.…”

“…A triple band-notched MIMO antenna with decoupling network is described in [13], Electromagnetic Band Gap (EBG) structure is used to filter the signals of WiMAX and WLAN bands. In [14], It proposes a CPW-fed four-port rectangular monopole antenna for UWB-MIMO applications. By etching step on the ground plane and arrow-shaped on the radiating patch, the bandwidth and performances have been promoted.…”