Wideband MIMO Antenna with Diverse Polarization and Radiation Pattern for 5G Applications

2019 ◽  
pp. 677-687
Author(s):  
Dinesh Sharma ◽  
E. Kusuma Kumari
Keyword(s):  
Radiation Pattern ◽  
Mimo Antenna

scholarly journals Dual-Band, Dual-Polarized Two Element Slot Antenna for Fifth Generation Mobile Devices

2021 ◽  
Vol 12 (3) ◽  
pp. 4822-4830
Author(s):  
Jitendra Vaswani
Keyword(s):  
Mobile Devices ◽  
Radiation Pattern ◽  
Cost Effective ◽  
User Equipment ◽  
Dual Band ◽  
Slot Antenna ◽  
Dual Polarization ◽  
Mimo Antenna ◽  
Fifth Generation ◽  
Dual Polarized

This paper presents a two-element dual-band MIMO antenna with dual-polarization for 5G user equipment. Both operating frequencies are of sub-6 GHz band centered at 3.6 GHz and 5.5 GHz respectively and are independent of each other. Antenna polarizations depend on the placement of the feed elements on the PCB. The antenna is designed on FR-4 substrate to ensure its easy availability and keeping it cost-effective. The resultant radiation pattern of the antenna set is bi-directional with good gain and efficiency.

Compact UWB–MIMO antenna with quad-band-notched characteristic

2016 ◽  
Vol 9 (5) ◽  
pp. 1147-1153 ◽  
Author(s):  
Ling Wu ◽  
Yingqing Xia
Keyword(s):  
Correlation Coefficient ◽  
Radiation Pattern ◽  
Mimo System ◽  
Ground Plane ◽  
Multiple Input Multiple Output ◽  
Mimo Antenna ◽  
X Band ◽  
Multiple Input ◽  
Input Multiple Output ◽  
Better Than

With quad-band-notched characteristic, a compact ultrawideband (UWB) multiple-input-multiple-output (MIMO) antenna is introduced in the paper. The UWB–MIMO system has two similar monopole elements and occupies 30 × 45 mm2. By inserting two L-shaped slots, CSRR and C-shaped stubs, four notched bands are achieved (3.25–3.9, 5.11–5.35, 5.5–6.06, and 7.18–7.88 GHz) to filter WiMAX, lower WLAN, upper WLAN, and X-band. Meanwhile, the isolation is obviously enhanced with three metal strips on the ground plane. Results indicate that the antenna covers UWB frequency band of 3.1 – 10.6 GHz except four rejected bands, isolation of better than −18 dB, envelope correlation coefficient of <0.02, and good radiation pattern, thus making it useful for UWB systems.

scholarly journals Compact Design of 2 × 2 MIMO Antenna with Super-Wide Bandwidth for Millimeters Wavelength Systems

Symmetry ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 233
Author(s):  
Haitham Alsaif ◽  
Mohamed A. H. Eleiwa
Keyword(s):  
Radiation Pattern ◽  
Radio Frequency Identification ◽  
Computer Aided Design ◽  
Ground Plane ◽  
Antenna System ◽  
Ultra Wideband ◽  
Tangent Loss ◽  
Total System ◽  
Wide Bandwidth ◽  
Mimo Antenna

A novel compact planar 2 × 2 antenna system with super-wide bandwidth is presented in this paper. The MIMO antenna has four square-shaped patches with two slots in each that are interconnected with each other using four strip lines printed on a substrate of Rogers Duroid RT 5880 with relative permittivity of εr = 2.2 and tangent loss of δ = 0.0009. The proposed antenna system has a partial ground plane with two enhancement fractured slots. The design is characterized by a super-wide impedance starting from 15.2 to 62 GHz (a bandwidth of 46.8 GHz) and compact total system size of 11.2 × 15.25 mm2 with a thickness of 0.12 mm. The proposed MIMO design has omnidirectional radiation pattern for far field and the achieved peak gain reaches 13.5 dBi. The presented planar antenna which relies on computer aided design, has been designed and simulated using an industrial standard simulation code. Its performance results showed that the MIMO design is characterized by super wide bandwidth, omnidirectional radiation pattern, and high-power gain with miniaturized physical size; thus, it is suitable for radio-frequency identification (RFID) systems, fifth-generation applications, ultra-wideband systems, and others.

scholarly journals Radiation Pattern Analysis of Antenna Systems for MIMO and Diversity Configurations

2005 ◽  
Vol 3 ◽  
pp. 157-165 ◽  
Author(s):  
O. Klemp ◽  
H. Eul
Keyword(s):  
Radiation Pattern ◽  
Channel Capacity ◽  
Communication Systems ◽  
Pattern Analysis ◽  
Multiple Input Multiple Output ◽  
Analytical Description ◽  
Radiation Characteristics ◽  
Antenna Radiation ◽  
Mimo Antenna ◽  
Antenna Systems

Abstract. Multiple-input multiple-output (MIMO) antenna systems and antenna configurations for wideband multimode diversity rank among the emerging key technologies in next generation wireless communication systems. The analysis of such transmission systems usually neglects the influences of real antenna radiation characteristics as well as the influences of mutual coupling in a multielement antenna arrangement. Nevertheless, to achieve a detailed description of diversity gain and channel capacity by using several transmit- and receive antennas in a wireless link, it is essential to take all those effects into account. The expansion of the radiation fields in terms of spherical eigenmodes allows an analytical description of the antenna radiation characteristics and accounts for all the coupling effects in multielement antenna configurations. Therefore the radiation pattern analysis by spherical eigenmode expansion provides an efficient alternative to establish an analytical approach in the calculation of envelope correlation or channel capacity.

Design of a Miniaturized UWB-MIMO Antenna with Four Notched-Band Characteristics

Frequenz ◽  
2019 ◽  
Vol 73 (7-8) ◽  
pp. 245-252 ◽  
Author(s):  
Ling Wu ◽  
Hao Lyu ◽  
Huaqing Yu ◽  
Jing Xu
Keyword(s):  
Radiation Pattern ◽  
Multiple Input Multiple Output ◽  
Mimo Antenna ◽  
Ground Plan ◽  
Notched Band ◽  
X Band ◽  
Multiple Input ◽  
Input Multiple Output ◽  
Better Than

Abstract With four rejected bands, a miniaturized ultrawideband multiple-input-multiple-output (UWB-MIMO) antenna is presented. Four notched bands are realized by applying three pairs of L-shape slots and two symmetrical C-like metal stubs. Thus the system can relief latent interference from 3.5 GHz WiMAX/5.3 GHz lower WLAN/5.8 GHz upper WLAN/8.1 GHz X-band. To minimize port coupling and covering 3.1–10.6 GHz UWB band, a T-like metal stub is designed in the ground plan. The results proves that the antenna has four rejected bands across the working band of 3.1 ~ 11 GHz. Moreover, the antenna has compact volume of 21 × 27 × 0.8 mm3, better than −18 dB port isolation, preferable radiation pattern and gentle gain.

scholarly journals Miniaturized MIMO Antenna with Low Inter-radiator Transmittance and Band Rejection Features

2021 ◽  
Vol 21 (4) ◽  
pp. 307-315
Author(s):  
Muhammad Irshad Khan ◽  
Muhammad Irfan Khattak ◽  
Mauth Al-Hasan
Keyword(s):  
Correlation Coefficient ◽  
Radiation Pattern ◽  
Mimo System ◽  
Ground Plane ◽  
Diversity Gain ◽  
Reflection Coefficients ◽  
Mimo Antenna ◽  
Transmission Coefficients ◽  
Multiple Input ◽  
Envelope Correlation

In this article, compact a multiple-input and multiple-output (MIMO) system with flag-shaped radiators and a mountain-shaped ground plane is presented. Isolation is enhanced with the help of a decoupling stub placed between radiators, where two bands are stopped with the help of slits etched into the radiators. The overall size of the proposed antenna is 15 mm ×25 mm ×1.6 mm. The reflection coefficients are less than -10 dB between 3–10.9 GHz, except the bands WiMAX (3.2–3.7 GHz) and WLAN (5–6 GHz); similarly, measured and simulated transmission coefficients are less than -20 dB across the entire band of UWB. The envelope correlation coefficient (ECC) is less than 0.02 and the diversity gain is greater than 9.9 dB. The gain, ECC, radiation pattern, multiplexing efficiency, diversity gain and various other parameters are discussed and evaluated in detail.

scholarly journals Coplanar Wave Guide Fed Dual Band Notched MIMO Antenna

2016 ◽  
Vol 6 (4) ◽  
pp. 1732
Author(s):  
D S Ramkiran ◽  
B T P Madhav ◽  
Kankara Narasimha Reddy ◽  
Shaik Shabbeer ◽  
Priyanshi Jain ◽  
...  
Keyword(s):  
Radiation Pattern ◽  
Satellite Communication ◽  
Wave Guide ◽  
Dual Band ◽  
Pass Band ◽  
Mimo Antenna ◽  
Notch Band ◽  
Current Design ◽  
Gain Reduction ◽  
5 Ghz

A coplanar wave guide fed of semicircle monopole antenna is designed in this work to overcome polarization diversity mimo technique is implemented in this paper. The proposed antenna is designed to notch a particular band of frequencies in UWB range. The designed model is notching the first band from 2 to 5 GHz &amp; the second band from 7 to 11 GHz. The proposed antenna has been fabricated on FR4 substrate with di electric constant 4.4 &amp; tested for its reliability on ZNB20 vector network analyzer. The operating bands will come under WLAN, KU band, satellite communication applications. A peak realized gain of 4.3 dB with radiation efficiency 90% is attained at the operating bands of the designed antenna. At notch band significant gain reduction is observed from the current design. The antenna is showing omnidirectional radiation pattern in the pass band &amp; disturbed radiation pattern in the notch band. Antenna is fabricated with dimensions of 40x68x1.6 mm &amp; simulation works are carried with finite element method based HFSS tool.

Sign in / Sign up

Export Citation Format

Share Document