scholarly journals A Slot Antenna Array With Low Mutual Coupling for Use on Small Mobile Terminals

2011 ◽  
Vol 59 (5) ◽  
pp. 1512-1520 ◽  
Author(s):  
Sema Dumanli ◽  
Chris J. Railton ◽  
Dominique L. Paul
Keyword(s):  
Antenna Array ◽  
Mutual Coupling ◽  
Slot Antenna ◽  
Mobile Terminals

scholarly journals Quasi-Yagi Slotted Array Antenna with Fan-Beam Characteristics for 28 GHz 5G Mobile Terminals

2020 ◽  
Vol 10 (21) ◽  
pp. 7686
Author(s):  
Sungpeel Kim ◽  
Jaehoon Choi
Keyword(s):  
Mutual Coupling ◽  
Beam Steering ◽  
Ground Plane ◽  
Array Antenna ◽  
Slot Antenna ◽  
Mobile Terminals ◽  
Beam Radiation ◽  
Steering Mechanism ◽  
Half Power ◽  
Beam Characteristics

A quasi-Yagi slotted array antenna with fan-beam characteristics is proposed for 28 GHz 5G mobile terminals. The antenna is composed of a 1 × 8 slot antenna array with directors to enhance the half-power beamwidth (HPBW). The proposed antenna has a fan-beam radiation pattern with a simulated HPBW of 256.72° and a peak gain of 11.16 dBi. In addition, the proposed antenna covers ±48° using a beam steering mechanism. Mutual coupling reduction is achieved by inserting slits between the adjacent slot radiators on the ground plane. The simulated −10 dB reflection coefficient bandwidth of the proposed antenna is 1.79 GHz (27.03–28.82 GHz), and the mutual coupling between each of the slot radiators is lower than −25.02 dB over the 28 GHz target band (27.5–28.35 GHz). To investigate the effect of a human body in a practical environment, the power density was considered to estimate the electromagnetic exposure with a simplified skin model. The measured results were in good agreement with the simulated ones and demonstrated that the proposed antenna could be used for 5G mobile terminals.

A broad band circularly polarized cross slot cavity back array antenna with sequentially rotated feed network for improving gain in X-band application

2016 ◽  
Vol 9 (3) ◽  
pp. 705-710 ◽  
Author(s):  
Majid- Fakheri ◽  
Mohammad Naser-Moghadasi ◽  
Ramezan Ali- Sadeghzadeh
Keyword(s):  
Antenna Array ◽  
Mutual Coupling ◽  
Broad Band ◽  
Optimization Procedure ◽  
Axial Ratio ◽  
Slot Antenna ◽  
Impedance Bandwidth ◽  
Circularly Polarized ◽  
Feed Network ◽  
And Performance

This paper presents a new broad band circularly polarized slot antenna array based on substrate-integrated waveguide (SIW) and aperture feeding techniques. The antenna element's impedance and 3 dB axial-ratio (AR) bandwidths are from 8.8 to 10.4 GHz (16.67%) and 9.5–10.7 GHz (12%), respectively. Employing aperture-coupled feed and combining this method with sequentially rotated network, a 2 × 2 antenna array is achieved. Parametric optimization procedure is used to enhance the antenna specifications. In the presented scheme by reducing mutual coupling caused by the SIW technique and sequentially rotated feed network, all parameters of antenna are improved. Consequently a novel antenna array with impedance bandwidth of 2.8 GHz (8.7–11.5 GHz) and 3 dB AR bandwidth of 2.1 GHz (9–11.05 GHz) are obtained. The average gain of the proposed antenna is about 16.7 dBic. A new method is used to increase the gain of antenna array. The extracted result shows that side lob level, mutual coupling, impedance bandwidth, and performance of antenna simultaneously are controlled.

Efficient SIW-Feed Network Suppressing Mutual Coupling of Slot Antenna Array

2021 ◽  
pp. 1-1
Author(s):  
Aida Abdi Diman ◽  
Farzad Karami ◽  
Pejman Rezaei ◽  
Ali Amn-e-Elahi ◽  
Zahra Mousavirazi ◽  
...  
Keyword(s):  
Antenna Array ◽  
Mutual Coupling ◽  
Slot Antenna ◽  
Feed Network

scholarly journals Two-Element Tapered Slot Antenna Array for Terahertz Resonant Tunneling Diode Oscillators

2014 ◽  
Vol 2014 ◽  
pp. 1-8
Author(s):  
Jianxiong Li ◽  
Yunxiang Li ◽  
Weiguang Shi ◽  
Haolin Jiang ◽  
Luhong Mao
Keyword(s):  
Antenna Array ◽  
Integrated Circuit ◽  
Resonant Tunneling ◽  
Mutual Coupling ◽  
Beam Width ◽  
High Gain ◽  
Resonant Tunneling Diode ◽  
Slot Antenna ◽  
Tunneling Diode ◽  
Metal Insulator Metal

Two-element tapered slot antenna (TSA) array for terahertz (THz) resonant tunneling diode (RTD) oscillators is proposed in this paper. The proposed TSA array has the advantages of both the high directivity and high gain at the horizontal direction and hence can facilitate the horizontal communication between the RTD oscillators and other integrated circuit chips. A MIM (metal-insulator-metal) stub with a T-shaped slot is used to reduce the mutual coupling between the TSA elements. The validity and feasibility of the proposed TSA array have been simulated and analyzed by the ANSYS/ANSOFT’s High Frequency Structure Simulator (HFSS). Detailed modeling approaches and theoretical analysis of the proposed TSA array have been fully addressed. The simulation results show that the mutual coupling between the TSA elements is reduced below −40 dB. Furthermore, at 500 GHz, the directivity, the gain, and the half power beam width (HPBW) at theE-plane of the proposed TSA array are 12.18 dB, 13.09 dB, and 61°, respectively. The proposed analytical method and achieved performance are very promising for the antenna array integrated with the RTD oscillators at the THz frequency and could pave the way to the design of the THz antenna array for the RTD oscillators.

Broadband antipodal tapered slot antenna array with low mutual coupling and high gain properties

2019 ◽  
Vol 13 (10) ◽  
pp. 1653-1659 ◽  
Author(s):  
Ziyu Xu ◽  
Helin Yang ◽  
Qisheng Zhang ◽  
Linyan Guo ◽  
Zhengwei Yang
Keyword(s):  
Antenna Array ◽  
Mutual Coupling ◽  
High Gain ◽  
Slot Antenna
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