Wideband beam-steerable configuration of metasurface loaded slot antenna

被引：13

作者：

Katare, Kranti Kumar ^{[1
]}

Biswas, Animesh ^{[1
]}

Akhtar, M. Jaleel ^{[1
]}

机构：

[1] Indian Inst Technol Kanpur, Dept Elect Engn, Kanpur, Uttar Pradesh, India

来源：

INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING | 2018年 / 28卷 / 08期

关键词：

beam steering; metasurface; slot antenna; wide band;

D O I：

10.1002/mmce.21408

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

In this article, a wideband two dimensional (2D) beam-steerable antenna structure is presented. The proposed structure is based on a radially gradient hybrid metasurface (RGHMS) illuminated through a slot antenna. The half aperture of the RGHMS comprises of a gradient phase profile topology, while its other half aperture consists of a constant phase profile configuration. The slot antenna possessing the bidirectional radiation pattern is printed on a relatively thin substrate, which operates over a wide bandwidth of 1420MHz (15.10%). The placement of RGHMS tilts the main beam of slot antenna by 15 degrees away from normal direction. Further, in-plane movement of MS provides beam steering in both elevation and azimuth planes, with a conical region of an apex angle of 30 degrees. Apart from the beam steering capability, the placement of RGHMS in front of slot antenna also enhances the overall bandwidth and gain by 360MHz and 5dB, respectively. Thus, a wide band beam steering configuration with the impedance bandwidth of 1780MHz (18.85%) is obtained. In order to investigate the frequency dependent beam tilting capability of the RGHMS in the elevation plane, a detailed analysis is carried out using the principle of refraction.

引用

页数：7

共 17 条

[1] Steering the Beam of Medium-to-High Gain Antennas Using Near-Field Phase Transformation [J].

Afzal, Muhammad U. ;

Esselle, Karu P. .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2017, 65 (04) :1680-1690

[2]

Balanis C., ANTENNA THEORY ANAL

[3] Broadband compact CPW-fed metasurface antenna for SAR-based portable imaging system [J].

Cai, Ming ;

Li, Xiaoqiang ;

Fan, Leming ;

Yang, Guangli ;

Sharma, Satish Kumar .

INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING, 2018, 28 (02)

[4] Tilted-beam MPA with broad-useful bandwidth [J].

Chacko, Bybi Puthenkalapurayil ;

Augustin, Gijo ;

Denidni, Tayeb A. .

IET MICROWAVES ANTENNAS & PROPAGATION, 2017, 11 (04) :471-476

[5] A metasurface-based slit-loaded wideband circularly polarized crossed dipole antenna [J].

Chen, Qiang ;

Zhang, Hou ;

Yang, Lu-Chun ;

Zhong, Tao .

INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING, 2018, 28 (01)

[6] Using Rotatable Planar Phase Shifting Surfaces to Steer a High-Gain Beam [J].

Gagnon, Nicolas ;

Petosa, Aldo .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2013, 61 (06) :3086-3092

[7] Inductive-varying grid for highly beam-steerable cavity antennas [J].

Ghasemi, A. ;

Burokur, S. N. ;

Dhouibi, A. ;

de Lustrac, A. .

ELECTRONICS LETTERS, 2013, 49 (05) :319-320

[8] Microwave beam steering of planar antennas by hybrid phase gradient metasurface structure under spherical wave illumination [J].

Katare, Kranti Kumar ;

Biswas, Animesh ;

Akhtar, M. Jaleel .

JOURNAL OF APPLIED PHYSICS, 2017, 122 (23)

[9] Circular Polarization Wide-Angle Beam Steering at Ka-Band by In-Plane Translation of a Plate Lens Antenna [J].

Lima, Eduardo B. ;

Matos, Sergio A. ;

Costa, Jorge R. ;

Fernandes, Carlos A. ;

Fonseca, Nelson J. G. .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2015, 63 (12) :5443-5455

[10] Tilted-Beam High Gain Antenna System Composed of a Patch Antenna and Periodically Arrayed Loops [J].

Nakano, Hisamatsu ;

Mitsui, Subaru ;

Yamauchi, Junji .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2014, 62 (06) :2917-2925

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