scholarly journals Assessment of Compressive Sensing 2 × 2 MIMO Antenna Design for Millimeter-Wave Radar Image Enhancement

Electronics ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 624
Author(s):  
Neda Rojhani ◽  
Marco Passafiume ◽  
Matteo Lucarelli ◽  
Giovanni Collodi ◽  
Alessandro Cidronali
Keyword(s):  
Compressive Sensing ◽  
Millimeter Wave ◽  
Multiple Input Multiple Output ◽  
Array Antenna ◽  
Random Pattern ◽  
Mimo Antenna ◽  
Millimeter Wave Radar ◽  
Random Array ◽  
Wave Radar ◽  
Input Multiple Output

This paper presents a microstrip array antenna designed for a 2 × 2 Compressive Sensing Multiple-Input Multiple-Output (CS-MIMO) millimeter-wave radar operating at 37.5 GHz. The CS-MIMO linear array antenna is designed to obtain an optimal aperture by seeking a suitable random pattern for the antenna positions. Applying CS allows a considerable reduction in the number of antennas respect to a dense array based on the Nyquist criterion. In this study, we report all possible configurations of 2 × 2 CS-MIMO by placing antennas in random positions, plus their compression ratio. Finally, by selecting the proper design, we examine the experimental validation of the CS-MIMO antenna prototype by comparing measurements and simulations with a Standard MIMO (Std-MIMO) antenna prototype as a benchmark. The experimental results show that the angular resolution can be increased through a random array CS-MIMO by a factor of at least 2.9 respect to Std-MIMO while preserving the radar field of view.

scholarly journals High Isolation Millimeter-Wave Wideband MIMO Antenna for 5G Communication

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Fei Wang ◽  
Zhaoyun Duan ◽  
Xin Wang ◽  
Qing Zhou ◽  
Yubin Gong
Keyword(s):  
Wireless Communications ◽  
Transmission Coefficient ◽  
Millimeter Wave ◽  
Multiple Input Multiple Output ◽  
Mimo Antenna ◽  
High Isolation ◽  
Multiple Input ◽  
Input Multiple Output ◽  
The Stability ◽  
24 Ghz

A millimeter-wave wideband antenna is presented for the 5th generation applications. The operation band ranges from 24 GHz to 39 GHz which covers most of the Ka band. Furthermore, a 9×9 multiple-input-multiple-output (MIMO) antenna is developed. The high isolation is achieved without introducing external decoupling structures. The transmission coefficient is under −20 dB within only 0.4 mm space between antenna elements. The radiation pattern also shows the stability within the wide operation band. Both simulated and measured results show that this proposed MIMO antenna is suitable for the future wireless communications.

scholarly journals Desain U-slot Ganda untuk Meningkatkan Bandwidth Antena MIMO 5G Millimeter-wave

2020 ◽  
Vol 8 (1) ◽  
pp. 150
Author(s):  
EFRI SANDI ◽  
WISNU DJATMIKO ◽  
RIZKITA KURNIA PUTRI
Keyword(s):  
Millimeter Wave ◽  
Microstrip Antenna ◽  
Multiple Input Multiple Output ◽  
Antenna Design ◽  
Frequency Allocation ◽  
Mimo Antenna ◽  
Main Requirement ◽  
Multiple Input ◽  
Input Multiple Output ◽  
High Bandwidth

ABSTRAK Pada penelitian ini dikembangkan rekayasa antena mikrostrip (MSA) dengan penambahan U-slot ganda untuk meningkatkan performansi bandwidth antena mikrostrip. Penelitian sebelumnya berfokus pada penambahan U-slot tunggal dan didesain untuk frekuensi di bawah 15 GHz. Kebutuhan utama antena 5G adalah memiliki bandwidth yang lebar dan kemampuan Multiple Input Multiple Output (MIMO). Untuk itu perlu dikembangkan desain antena MIMO 5G dengan bandwidth yang lebih lebar pada frekuensi millimeter-wave 28 GHz sebagai kandidat utama alokasi frekuensi untuk komunikasi seluler 5G. Pada penelitian ini diajukan teknik desain antena MIMO dengan penambahan rekayasa U-slot ganda untuk meningkatkan performansi bandwidth. Hasil kalkulasi dan simulasi menunjukkan bahwa dengan penambahan U-slot ganda, dihasilkan peningkatan performansi bandwith sebesar 68% dibandingkan desain antena tanpa U-slot. Jika dibandingkan dengan hasil penelitian U-slot sebelumnya, penambahan U-slot ganda menghasilkan peningkatan bandwidth sebesar 76%. Kata kunci: U-Slot ganda, antena 5G millimeter-wave, MIMO, bandwidth ABSTRACT In this study, a microstrip antenna (MSA) was developed with the addition of a double U-slot to improve bandwidth performance. Previous studies have focused on adding single U-slots and designed for frequencies below 15 GHz. The main requirement for 5G antennas is high bandwidth performance and multiple inputmultiple output capabilities (MIMO). Therefore, it is necessary to develop a 5G MIMO antenna with broader bandwidth at the millimeter-wave frequency 28 GHz as the primary candidate for frequency allocation for 5G cellular communication. In this study, MIMO antenna design techniques were proposed with the addition of a double U-slot method to improve bandwidth performance. The calculation and simulation results show that with the addition of a double U-slot, an increase in bandwidth performance of 68% compared to antenna designs without U-slots and 76% when compared to using a single U-slot in previous studies. Keywords: Double U-Slot, millimeter-wave 5G antenna, MIMO, bandwidth

scholarly journals Automatic Calibration Using a Modified Genetic Algorithm for Millimeter-Wave Antenna Modules in MIMO Systems

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Cheng-Nan Hu ◽  
Philip Lo ◽  
Chien-Peng Ho ◽  
Dau-Chyrh Chang
Keyword(s):  
Genetic Algorithm ◽  
Millimeter Wave ◽  
Mimo Systems ◽  
Multiple Input Multiple Output ◽  
Rectangular Lattice ◽  
Mimo Antenna ◽  
Modified Genetic Algorithm ◽  
Input Multiple Output ◽  
Time Required ◽  
Antenna Module

This study proposes a method for designing and calibrating a millimeter-wave (mm-wave) multiple-input multiple-output (MIMO) antenna module. Herein, we adopt a design example involving a 64-element MIMO antenna array arranged in a triangular lattice (instead of the commonly used rectangular lattice) to achieve a 3°dB enhancement in effective isotropic radiated power. Analyzing a grating lobe diagram indicates a scan volume of ±60°/±45° in the azimuth/elevation direction. To calibrate the massive mm-wave MIMO antenna module, we propose a modified genetic algorithm to align the amplitude/phase of the transmitting/receiving signal of the module to reduce the time required for the calibration process. Finally, we conducted a simple experiment to validate the proposed method.

The Large Millimeter Wave Radar Phased Antenna Array

2000 ◽  
Vol 54 (10) ◽  
pp. 101-111
Author(s):  
Aleksey Alekseevich Tolkachev ◽  
Vasiliy Andreevich Makota ◽  
Mariya Petrovna Pavlova ◽  
Anatoliy Moiseevich Nikolaev ◽  
Vladimir Victorovich Denisenko ◽  
...  
Keyword(s):  
Antenna Array ◽  
Millimeter Wave ◽  
Millimeter Wave Radar ◽  
Wave Radar ◽  
Phased Antenna Array

Antenna for Navigational Shipborne Millimeter-Wave Radar

2006 ◽  
Vol 65 (16) ◽  
pp. 1453-1462
Author(s):  
A. N. Nechiporenko ◽  
L. D. Fesenko
Keyword(s):  
Millimeter Wave ◽  
Millimeter Wave Radar ◽  
Wave Radar
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