The high gain frequency- and radiation pattern-reconfigurable antenna based on meta-surface

2017 ◽  
Author(s):  
Ai Xin Chen ◽  
Xin Liu
Keyword(s):  
Radiation Pattern ◽  
High Gain ◽  
Reconfigurable Antenna

scholarly journals Wideband Dual-Polarized VHF Antenna for Space Observation Applications

Sensors ◽  
2020 ◽  
Vol 20 (15) ◽  
pp. 4351
Author(s):  
Alexandru Tatomirescu ◽  
Alina Badescu
Keyword(s):  
Radiation Pattern ◽  
Group Delay ◽  
High Gain ◽  
Antenna Element ◽  
Frequency Bandwidth ◽  
Radio Emissions ◽  
Relative Bandwidth ◽  
Pattern Stability ◽  
Dual Polarized ◽  
Delay Variation

This work presents the design for an antenna element that can be used in radio arrays for the monitoring and detecting of radio emissions from cosmic particles’ interactions in the atmosphere. For these applications, the pattern stability over frequency is the primary design goal. The proposed antenna has a high gain over a relative bandwidth of 88%, a beamwidth of 2.13 steradians, a small group delay variation and a very stable radiation pattern across the frequency bandwidth of 110 to 190 MHz. It is dual polarized and has a simple mechanical structure which is easy and inexpensive to manufacture. The measurements show that the ground has insignificant impact on the overall radiation pattern.

scholarly journals Radiation Pattern Reconfigurable Antenna for IoT Devices

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Zakaria Mahlaoui ◽  
Eva Antonino-Daviu ◽  
Miguel Ferrando-Bataller
Keyword(s):  
Radiation Pattern ◽  
Reconfigurable Antenna ◽  
Characteristic Mode ◽  
Pin Diodes ◽  
Iot Applications ◽  
Different Dimensions ◽  
Iot Devices ◽  
Characteristic Mode Theory ◽  
Good Agreement ◽  
Metallic Plates

Based on the characteristic mode theory, a versatile radiation pattern reconfigurable antenna is proposed. The analysis starts from two parallel metallic plates with the same and different dimensions. By means of two PIN diodes, the size of one of the parallel metallic plates can be modified and consequently the behavior of the radiation pattern can be switched between bidirectional and unidirectional radiation patterns. Moreover, a SPDT switch is used to adjust the frequency and match the input impedance. The reconfigurable antenna prototype has been assembled and tested, and a good agreement between simulated and measured results is obtained at 2.5 GHz band which fits the IoT applications.

High Gain Beam-Steerable Reconfigurable Antenna using Combined Pixel and Parasitic Arrays

2021 ◽  
Author(s):  
Devakumaran Subramaniam ◽  
Muzammil Jusoh ◽  
Thennarasan Sabapathy ◽  
Ping Jack Soh ◽  
Mohamed Nasrun Osman ◽  
...  
Keyword(s):  
High Gain ◽  
Reconfigurable Antenna

Optimal Radiation Pattern of Feed of Luneburg Lens for High-Gain Application

2020 ◽  
Vol 68 (12) ◽  
pp. 8139-8143
Author(s):  
Guangjun Guo ◽  
Yulong Xia ◽  
Cun Wang ◽  
Muhammad Nasir ◽  
Qi Zhu
Keyword(s):  
Radiation Pattern ◽  
High Gain ◽  
Luneburg Lens

scholarly journals Wide-Angle Scanning Phased Array Antenna using High Gain Pattern Reconfigurable Antenna Elements

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
ByungKuon Ahn ◽  
In-June Hwang ◽  
Kwang-Seok Kim ◽  
Soo-Chang Chae ◽  
Jong-Won Yu ◽  
...  
Keyword(s):  
Phased Array ◽  
High Gain ◽  
Array Antenna ◽  
Reconfigurable Antenna ◽  
Wide Angle ◽  
Phased Array Antenna ◽  
Design Guideline ◽  
Phased Array Antennas ◽  
Array Antennas ◽  
Scanning Range

AbstractThis paper presents a wide-angle scanning phased array antenna using high gain pattern reconfigurable antenna (PRA) elements. Using PRA elements is an attractive solution for wide-angle scanning phased array antennas because the scanning range can be divided into several subspaces. To achieve the desired scanning performance, some characteristics of the PRA element such as the number of switching modes, tilt angle, and maximum half-power beamwidth (HPBW) are required. We analyzed the required characteristics of the PRA element according to the target scanning range and element spacing, and presented a PRA element design guideline for phased array antennas. In accordance with the guideline, the scanning range was set as ±70° and a high gain PRA element with three reconfigurable patterns was used to compose an 8x1 array antenna with 0.9 λ0 spacing. After analyzing whether the active element patterns meet the guideline, the array antenna was fabricated and measured to demonstrate the scanning performance. The fabricated array can scan its beam from -70° to 70° by dividing the scanning range into three subspaces. It shows that even if the array antenna has large element spacing, the desired scanning performance can be obtained using the elements designed under the guideline.

scholarly journals Wideband Reconfigurable Antenna with Beams Switching for Wireless Systems Applications

Proceedings ◽  
2020 ◽  
Vol 63 (1) ◽  
pp. 36
Author(s):  
Faouzi Rahmani ◽  
Naima Amar Touhami ◽  
Abdelmounaim Belbachir Kchairi ◽  
Nihade Taher
Keyword(s):  
Radiation Pattern ◽  
Intelligent Transportation System ◽  
Wireless Systems ◽  
Intelligent Transportation ◽  
Transportation System ◽  
Reconfigurable Antenna ◽  
Pin Diodes

In this paper, a new wideband reconfigurable antenna with beams switching for wireless systems applications is presented and studied. The radiation pattern of the proposed antenna can be changed using the PIN diodes. The designed antenna has a bandwidth of 26.75% from 5.31 to 6.95 GHz and can steer the beam in the azimuth plane. The simulated realized gain of the antenna obtained is 5.9 dB at 5.8 GHz. The proposed antenna can operate for various wireless systems, such as Wi-Fi, WiMAX, Intelligent Transportation System (ITS) and C-band satellite. The simulated results are also presented and investigated.

Low-Profile Wideband High-Gain Reconfigurable Antenna With Quad-Polarization Diversity

2018 ◽  
Vol 66 (7) ◽  
pp. 3741-3746 ◽  
Author(s):  
Huy Hung Tran ◽  
Nghia Nguyen-Trong ◽  
Tuan Tu Le ◽  
Amin M. Abbosh ◽  
Hyun Chang Park
Keyword(s):  
High Gain ◽  
Reconfigurable Antenna ◽  
Polarization Diversity ◽  
Low Profile

scholarly journals Ultrawideband Low-Profile and Miniaturized Spoof Plasmonic Vivaldi Antenna for Base Station

2020 ◽  
Vol 10 (7) ◽  
pp. 2429 ◽  
Author(s):  
Li Hui Dai ◽  
Chong Tan ◽  
Yong Jin Zhou
Keyword(s):  
Radiation Pattern ◽  
Frequency Band ◽  
High Gain ◽  
Base Station ◽  
Ultra Wideband ◽  
Radiation Patterns ◽  
Low Profile ◽  
Simulation Results ◽  
Vivaldi Antenna ◽  
Good Agreement

Stable radiation pattern, high gain, and miniaturization are necessary for the ultra-wideband antennas in the 2G/3G/4G/5G base station applications. Here, an ultrawideband and miniaturized spoof plasmonic antipodal Vivaldi antenna (AVA) is proposed, which is composed of the AVA and the loaded periodic grooves. The designed operating frequency band is from 1.8 GHz to 6 GHz, and the average gain is 7.24 dBi. Furthermore, the measured results show that the radiation patterns of the plasmonic AVA are stable. The measured results are in good agreement with the simulation results.

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