scholarly journals Study the Ground Plane Effect of a Multiband Antenna for Multiple Wireless Communication Systems

2011 ◽  
Vol 15 ◽  
pp. 2521-2526 ◽  
Author(s):  
Zhao Wang ◽  
Eng Gee Lim ◽  
Xiaodong Chen
Keyword(s):  
Wireless Communication ◽  
Communication Systems ◽  
Ground Plane ◽  
Wireless Communication Systems ◽  
Multiband Antenna

Multiband-coupled sectoral antenna using high and low dielectric constant substrates

2014 ◽  
Vol 7 (6) ◽  
pp. 721-726
Author(s):  
Abhishek Kandwal ◽  
Jai Verdhan Chauhan ◽  
Sunil Kumar Khah
Keyword(s):  
Dielectric Constant ◽  
Wireless Communication ◽  
Antenna Array ◽  
Communication Systems ◽  
Ground Plane ◽  
Mobile Systems ◽  
Low Dielectric Constant ◽  
Wireless Communication Systems ◽  
Satellite Systems ◽  
Low Dielectric

Design analysis of multiband-coupled stacked sectoral antenna array with finite ground plane using high low dielectric constant substrates is proposed in this paper for modern communication systems and applied physics. Multiband planar antennas have been extensively developed due to demands for integration of wireless communication systems. In this paper, we present the design and development of a multiband microstrip antenna array with parasitic coupling and stacking using two different substrates. The stacked designed antenna resonates at three different frequencies: 3.8, 5.4, and 10 GHz; therefore, showing a multiband property with good radiation (far-field) characteristics. A significant comparison study is also presented considering different dielectric constant substrates. The proposed antenna is an attractive solution for different wireless communication systems such as mobile systems, satellite systems, etc.

scholarly journals Broadband Dual-Polarized 2 × 2 MIMO Antenna for a 5G Wireless Communication System

Electronics ◽  
2021 ◽  
Vol 10 (17) ◽  
pp. 2141
Author(s):  
Junghoon Cha ◽  
Choon-Seong Leem ◽  
Ikhwan Kim ◽  
Hakyoung Lee ◽  
Hojun Lee
Keyword(s):  
Wireless Communication ◽  
Communication Systems ◽  
Ground Plane ◽  
Wireless Communication Systems ◽  
Impedance Bandwidth ◽  
Dipole Antennas ◽  
Mimo Antenna ◽  
Coefficient Corrélation ◽  
Dual Polarized ◽  
5 Ghz

In this study, we proposed an indoor broadband dual-polarized 2 × 2 MIMO (multiple-input and multiple-output) antenna having dimensions of 240 mm × 200 mm × 40 mm, for application in 5G wireless communication systems. The proposed antenna comprised two vertically polarized circular monopole antennas (CMAs), two horizontally polarized modified rectangular dipole antennas (MRDAs), and a ground plane. The distance between the two MRDAs (MRDA1 and MRDA2) was 70.5 mm and 109.5 mm in the horizontal (x-direction) and 109.5 mm vertical (y-direction) directions, respectively. Conversely, the distance between the two CMAs (CMA1 and CMA2) was 109.5 mm and 70.5 mm in the horizontal (x-direction) and vertical (y-direction) directions, respectively. While the CMAs achieved broadband characteristics owing to the optimal gap between the dielectric and the driven radiator using a parasitic element, the MRDAs achieved broadband owing to the optimal distance between the dipole antennas. The observations in this experiment confirmed that the proposed could operate in the 5G NR n46 (5.15–5.925 GHz), n47 (5.855–5.925 GHz), n77 (3.3–4.2 GHz), n78 (3.3–3.8 GHz), and the n79 (4.4–5 GHz) bands. Moreover, it exhibited a wide impedance bandwidth (dB magnitude of ) of 101% in the 2.3–7 GHz frequency range, high isolation (dB magnitude of ), low envelope coefficient correlation (ECC), gain of over 5 dB, and average radiation efficiency of 87.19%, which verified its suitability for application in sub-6 GHz 5G wireless communication systems.

scholarly journals A Low-Profile Wideband Monocone Antenna Using Bent Shorting Strips

2019 ◽  
Vol 9 (9) ◽  
pp. 1896 ◽  
Author(s):  
Kyo-Seung Keum ◽  
Young-Mi Park ◽  
Jae-Hoon Choi
Keyword(s):  
Reflection Coefficient ◽  
Wireless Communication ◽  
Communication Systems ◽  
Ground Plane ◽  
Experimental Results ◽  
Wireless Communication Systems ◽  
Impedance Bandwidth ◽  
Wide Bandwidth ◽  
Low Profile ◽  
Radiation Properties

A low-profile wideband monocone antenna with bent shorting strips, and parasitic and circular sleeves is proposed. By loading the bent shorting strips, parasitic sleeves, and circular sleeves, miniaturization of the antenna is achieved. Along with bent shorting strips from the monocone hat to the ground plane, parasitic sleeves, and circular sleeves are mounted to enhance the impedance bandwidth. From the experimental results, the –10 dB reflection coefficient bandwidth of the proposed antenna ranges from 810 MHz to 5340 MHz. In addition to the wide bandwidth characteristics, the proposed antenna has highly desirable omnidirectional radiation properties for wireless communication systems.

scholarly journals Circularly Polarized Broadband Printed Antenna for Wireless Applications

Sensors ◽  
2018 ◽  
Vol 18 (12) ◽  
pp. 4261 ◽  
Author(s):  
Md. Samsuzzaman ◽  
Mohammad Islam
Keyword(s):  
Wireless Communication ◽  
Communication Systems ◽  
Ground Plane ◽  
Axial Ratio ◽  
Wireless Communication Systems ◽  
Impedance Bandwidth ◽  
Printed Antenna ◽  
Circularly Polarized ◽  
Wireless Applications ◽  
Design Structure

A simple, compact sickle-shaped printed antenna with a slotted ground plane is designed and developed for broadband circularly polarized (CP) radiation. The sickle-shaped radiator with a tapered feed line and circular slotted square ground plane are utilized to realize the wideband CP radiation feature. With optimized dimensions of 0.29λ × 0.29λ × 0.012λ at 2.22 GHz frequency for the realized antenna parameters, the measured results display that the antenna has a 10 dB impedance bandwidth of 7.70 GHz (126.85%; 2.22–9.92 GHz) and a 3 dB axial ratio (AR) bandwidth of 2.64 GHz (73.33%; 2.28–4.92 GHz). The measurement agrees well with simulation, which proves an excellent circularly polarized property. For verification, the mechanism of band improvement and circular polarization are presented, and the parametric study is carried out. Since, the proposed antenna is a simple design structure with broad impedance and AR bandwidth, which is a desirable feature as a candidate for various wireless communication systems. Because of the easy printed structure and scaling the dimension with broadband CP characteristics, the realized antenna does incorporate in a number of CP wireless communication applications.

Multiband antenna structure for heterogeneous wireless communication systems using DGS technique

2014 ◽  
Vol 6 (5) ◽  
pp. 521-526 ◽  
Author(s):  
Davinder Parkash ◽  
Rajesh Khanna
Keyword(s):  
Communication Systems ◽  
Coplanar Waveguide ◽  
Ground Plane ◽  
Wireless Communication Systems ◽  
Impedance Bandwidth ◽  
Defected Ground Structure ◽  
Central Frequency ◽  
Antenna Structure ◽  
Multiband Antenna ◽  
S Parameter

This proposed work illustrates the design of a defected ground structure (DGS)-based coplanar waveguide (CPW)-fed multiband microstrip antenna consisting of four vertical monopoles, joined together by the few rectangular horizontal strips. In this multiband antenna, I-shaped defects are inserted into both sides of ground plane of CPW feed creating a DGS-CPW. The 10 dB impedance bandwidth of lower band is 29%, ranging from 2.232 to 3.1 GHz, with respect to the central frequency of 2.52 GHz, and while that of the upper band is 2.1 GHz (4.712–6.81 GHz), about 35%, referred to the central frequency of 5.7 GHz. The parametric study is performed to understand the characteristics of the proposed antenna. To verify the simulated design concept, a prototype antenna is designed and fabricated on the FR4 substrate, and characterized experimentally. The characteristic of antenna parameters such as S-parameter, gain, current distribution, and radiation pattern have been studied. The proposed antenna is suitable for WLAN/WiMAX applications.

scholarly journals Compact Multiband Slot Antenna for WLAN/WiMAX Operations

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Jianhui Bao ◽  
Qiulin Huang ◽  
Xinhuai Wang ◽  
Xiaowei Shi
Keyword(s):  
Wireless Communication ◽  
Communication Systems ◽  
Microstrip Line ◽  
Ground Plane ◽  
Radiation Characteristic ◽  
Experimental Results ◽  
Slot Antenna ◽  
Wireless Communication Systems ◽  
Resonant Modes ◽  
Triple Band

A novel compact triple-band slot antenna is proposed for WLAN/WiMAX applications. With the use of three L-shaped slots and an open-ended slot on the ground plane, three resonant modes centered at 2.4/3.5/5.8 GHz are excited. These modes cover the standards of 3.5 GHz WiMAX and 2.4/5.8 GHz WLAN, three useful frequency bands for present wireless communication systems. The proposed antenna fed by L-shaped microstrip line has a small overall dimension of16×30 mm2. The numerical and experimental results show that acceptable radiation characteristic is obtained over the operating bands.

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