Design and mutual coupling analysis on wideband wide-angle scan step-constant tapered slot antenna array

2010 ◽  
Author(s):  
Jing Shen ◽  
Zhi Xu ◽  
Ting Zheng
Keyword(s):  
Antenna Array ◽  
Mutual Coupling ◽  
Slot Antenna ◽  
Wide Angle ◽  
Coupling Analysis

scholarly journals A Study of a Wide-Angle Scanning Phased Array Based on a High-Impedance Surface Ground Plane

2019 ◽  
Vol 2019 ◽  
pp. 1-10
Author(s):  
Tian Lan ◽  
Qiu-Cui Li ◽  
Yu-Shen Dou ◽  
Xun-Ya Jiang
Keyword(s):  
Antenna Array ◽  
Mutual Coupling ◽  
Ground Plane ◽  
Wide Angle ◽  
Impédance Surface ◽  
Impedance Surface ◽  
The Real ◽  
Reflection Phase ◽  
High Impedance ◽  
High Impedance Surface

This paper presents a two-dimensional infinite dipole array system with a mushroom-like high-impedance surface (HIS) ground plane with wide-angle scanning capability in the E-plane. The unit cell of the proposed antenna array consists of a dipole antenna and a four-by-four HIS ground. The simulation results show that the proposed antenna array can achieve a wide scanning angle of up to 65° in the E-plane with an excellent impedance match and a small S11. Floquet mode analysis is utilized to analyze the active impedance and the reflection coefficient. Good agreement is obtained between the theoretical results and the simulations. Using numerical and theoretical analyses, we reveal the mechanism of such excellent wide scanning properties. For the range of small scanning angles, these excellent properties result mainly from the special reflection phase of the HIS ground, which can cause the mutual coupling between the elements of the real array to be compensated by the mutual coupling effect between the real array and the mirror array. For the range of large scanning angles, since the surface wave (SW) mode could be resonantly excited by a high-order Floquet mode TM−1,0 from the array and since the SW mode could be converted into a leaky wave (LW) mode by the scattering of the array, the radiation field from the LW mode is nearly in phase with the direct radiating field from the array. Therefore, with help from the special reflection phase of the HIS and the designed LW mode of the HIS ground, the antenna array with an HIS ground can achieve a wide-angle scanning performance.

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

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.

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