scholarly journals Microstrip Antenna with High Gain and Strong Directivity Loaded with Cascaded Hexagonal Ring-Shaped Metamaterial

Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7289
Author(s):  
Cheng Cui ◽  
Yingnan Ren ◽  
Pengfei Tao ◽  
Binzhao Cao
Keyword(s):  
Microstrip Antenna ◽  
Reference Value ◽  
High Gain ◽  
Microstrip Antennas ◽  
Impedance Bandwidth ◽  
Resonant Frequencies ◽  
Hexagonal Ring ◽  
Unit Structure ◽  
Ground Plate ◽  
Simulation Results

A new cascaded hexagonal ring-shaped metamaterial element is designed, which is arranged periodically and placed on the top of a traditional microstrip antenna to optimize the performance of the traditional antenna. The simulation results show that the new metamaterial microstrip antenna works at near 10 GHz, the impedance bandwidth is extended by 0.25 GHz and the gain is increased by 113.6% compared with a traditional microstrip antenna. Cross-shaped slots are etched on the ground plate of the microstrip antenna to widen the impedance bandwidth. It is shown that the impedance bandwidths at the resonant frequencies of 10 GHz and 14 GHz are broadened by 0.06 GHz and 0.56 GHz, respectively, and the gain of the slot-etched antenna is 13.454 dB. After the metamaterial unit structure is optimized, a nested double-hexagon ring-shaped electromagnetic metamaterial unit structure is proposed. The metamaterial slot microstrip antenna operates in two frequency bands of 10 GHz and 14 GHz; the relative bandwidths are increased to 16.9% and 19.4% with two working bandwidths of 1.74 GHz and 4.98 GHz, respectively; and the gain and directivity are also improved compared with the traditional microstrip antenna. The metamaterial unit structure proposed in this paper is of certain reference value for the variety of metamaterial and the application of metamaterial in traditional microstrip antennas.

Microstrip Antenna-inception, Progress and Current-state of The Art Review

2020 ◽  
Vol 13 (6) ◽  
pp. 769-794 ◽  
Author(s):  
Gunaram ◽  
Vijay Sharma
Keyword(s):  
Microstrip Antenna ◽  
Communication Systems ◽  
State Of The Art ◽  
Horn Antenna ◽  
High Gain ◽  
Microstrip Antennas ◽  
Impedance Bandwidth ◽  
Ieee Transaction ◽  
Manufacturing Techniques ◽  
Number Of Publications

Background: Microstrip antenna has gained significant attention for a large number of communication systems due to its adaptable features and compatibility. Objective: The major objective of this manuscript is to assess the microstrip antenna technology for structure adaptability, the feature based performance capabilities, design and versatility. Methods: The major reviews conducted in every decade on antenna technology highlighted the significance of microstrip antenna technology. Moreover, a review of the articles on microstrip antenna published in ‘IEEE Transaction on Antenna and Propagation’ revealed that these antennas can primarily be used instead of other types of antennas. : The available presentation of microstrip antennas includes features, such as small size, flatness (low profiles), wide-ranging impedance bandwidth, high gain, and circular polarization. A chronological assessment of the major endeavors in the microstrip antenna study conducted during the last four decades, is highlighted. Results: This manuscript focuses on the cutting-edge developments in the microstrip antenna technology and facilitates various modern designated extents, which provide the readers an insight into the tractability presented by microstrip antennas and their prospective benefits as compared to different types of other antennas like lens antenna, dish antenna, horn antenna, etc. The recent advancements in manufacturing techniques of microstrip antenna are reviewed. A large number of publications on the applications of microstrip antennas, such as communication, sensing, energy harvesting, biomedical relevance etc. are also included to show their importance at present. Conclusion: This article presents a state of the art evaluation of the research carried out on microstrip antennas from the time of their inception to till date. It consolidates the information for the researchers working in this field and will be helpful in enhancing the efforts for the research.

ANALYSIS PERFORMANCE OF SINGLY-FED CIRCULARLY POLARIZED MICROSTRIP ANTENNA FOR WIRELESS COMMUNICATION

2016 ◽  
Vol 78 (5-9) ◽  
Author(s):  
Muhammad Fauzan Edy Purnomo ◽  
Hadi Suyono ◽  
Panca Mudjirahardjo ◽  
Rini Nur Hasanah
Keyword(s):  
Wireless Communication ◽  
Circular Polarization ◽  
Microstrip Antenna ◽  
Axial Ratio ◽  
Microstrip Antennas ◽  
Impedance Bandwidth ◽  
Antenna Structure ◽  
Circularly Polarized ◽  
Large Bandwidth ◽  
Doubly Fed

The circularly polarized (CP) microstrip antennas, both of singly- and doubly-fed types, possess inherent limitation in gain, impedance and axial-ratio bandwidths. These limitations are caused mainly by the natural resonance of the patch antenna which has a high unloaded Q-factor and the frequency-dependent excitation of two degenerative modes (TM01 and TM10) when using a single feed. Many applications which require circular polarization, large bandwidth, and good performance, especially in the field of wireless communication, are still difficult to be designed by using antenna software. Some consideration to take will include the application target and design specification, the materials to be used, and the method to choose (formula, numerical analysis, etc). This paper explains and analyzes the singly-fed microstrip antenna with circular polarization and large bandwidth. This singly-fed type of microstrip antenna provides certain advantage of requiring no external circular polarizer, e.g. the 900 hybrid, as it only needs to apply some perturbation or modification to a patch radiator with a standard geometry. The design of CP and large-bandwidth microstrip antenna is done gradually, by firstly truncating one tip, then truncating the whole three tips, and finally modifying it into a pentagonal patch structure and adding an air-gap to obtain larger bandwidths of impedance, gain and axial ratio. The last one antenna structure results in a novelty because it is a rare design of antenna which includes all types of bandwidth (impedance, gain, and axial ratio) being simultaneously larger than the origin antenna. The resulted characteristic performance of the 1-tip (one-tip) antenna shows respectively 1.9% of impedance bandwidth, 3.1% of gain bandwidth, and 0.45% of axial-ratio bandwidth. For the 3-tip (three-tip) step, the resulted bandwidths of respectively impedance, gain, and axial ratio are 1.7%, 3.3% and 0.5%. The pentagonal structure resulted in the bandwith values of 15.67%, 52.16% and 4.11% respectively for impedance, gain, and axial ratio. 

Enhancement of the gain and bandwidth of the microstrip patch antenna with modified ground plane

2016 ◽  
Vol 9 (5) ◽  
pp. 1179-1184 ◽  
Author(s):  
Kalyan Mondal ◽  
Partha Pratim Sarkar
Keyword(s):  
Microstrip Antenna ◽  
Ground Plane ◽  
High Gain ◽  
Microstrip Patch Antenna ◽  
Impedance Bandwidth ◽  
Network Analyzer ◽  
Microstrip Patch ◽  
Optimum Selection ◽  
Peak Gain ◽  
Selection Of

In this work, microstrip antenna with W- and V-shaped radiating patches have been proposed. Here square- and circular-shaped modified ground planes have been designed by poly tetra fluoro ethylene (PTFE) substrate with dielectric constant 2.4. Broadband with high gain is obtained by optimum selection of radiating patch with modified ground plane. The ground planes are modified by loading a U-shaped slot. The simulated and measured results are compared. Considering −10 dB impedance bandwidth maximum frequency band of 6.97 GHz (3.04–10.01 GHz) with percentage bandwidth of 106.8% is achieved. The proposed antenna exhibits maximum peak gain of 5.1 dBi. The simulation and measurement have been done by Ansoft designer software and vector network analyzer.

scholarly journals Miniaturized Wideband Microstrip Antenna for Recent Wireless Applications

2018 ◽  
Vol 7 (5) ◽  
pp. 7-13 ◽  
Author(s):  
S. A. Shandal ◽  
Y. S. Mezaal ◽  
M. F. Mosleh ◽  
M. A. Kadim
Keyword(s):  
Microstrip Antenna ◽  
Return Loss ◽  
Ground Plane ◽  
Wide Frequency Range ◽  
Impedance Bandwidth ◽  
Wireless Devices ◽  
Microstrip Resonator ◽  
Resonant Frequencies ◽  
Compact Antenna ◽  
Wireless Applications

In this paper, a pentagon slot inside fractal circular patch microstrip resonator to design compact antenna over partial ground plane is introduced using 3rd iteration of adopted fractal geometry. This antenna is modeled on FR4 substrate with a size of (20 x 18) mm2, thickness of 1.5mm, permittivity of 4.3 and loss tangent of 0.02. The used type of feeding is microstrip line feed. It is designed to operate at wide frequency range of (4.5-9.3) GHz at resonant frequencies of 5.7GHz and 7.9GHz with impedance bandwidth of 4.8 GHz. Both lengths of ground plane Lg and width of feed line Wf are optimized in order to acquire optimum bandwidth. The simulated return loss values are -33 and -41 dB at two resonant frequencies of 5.7 and 7.9 GHz with gain of 3.2 dB. The simulated results offered noteworthy compatibility with measured results. Also, the proposed wideband microstrip antenna has substantial compactness that can be integrated within numerous wireless devices and systems.

A Novel-Shaped Reduced Size FSS-Based Broadband High Gain Microstrip Patch Antenna for WiMAX/WLAN/ISM/X-Band Applications

2021 ◽  
pp. 2150290
Author(s):  
Kalyan Mondal
Keyword(s):  
Patch Antenna ◽  
Microstrip Antenna ◽  
Ground Plane ◽  
High Gain ◽  
Microstrip Patch Antenna ◽  
Impedance Bandwidth ◽  
Antenna Structure ◽  
Microstrip Patch ◽  
Antenna Performance ◽  
Peak Gain

In this work, a broadband high gain frequency selective surface (FSS)-based microstrip patch antenna is proposed. The dimensions of the microstrip antenna and proposed FSS are [Formula: see text] and [Formula: see text]. A broadband high gain reference antenna has been selected to improve antenna performance. The reference antenna offers 1.2[Formula: see text]GHz bandwidth with 6.03[Formula: see text]dBi peak gain. Some modifications have been done on the patch and ground plane to enhance the bandwidth and gain. The impedance bandwidth of 7.70[Formula: see text]GHz (3.42–11.12[Formula: see text]GHz) with 4.9 dBi peak gain is achieved by the microstrip antenna without FSS. The antenna performance is improved by using FSS beneath the antenna structure. The maximum impedance bandwidth of 7.70[Formula: see text]GHz (3.32–11.02[Formula: see text]GHz) and peak gain of 8.6[Formula: see text]dBi are achieved by the proposed antenna with FSS. Maximum co- and cross-polarization differences are 21[Formula: see text]dB. The simulation and measurement have been done using Ansoft Designer software and vector network analyzer. The measured results are in good parity with the simulated one.

Design, fabrication, and test of a novel broadband dual-polarized microstrip antenna for WLAN applications

2018 ◽  
Vol 11 (3) ◽  
pp. 297-301
Author(s):  
Majid Karimipour ◽  
Iman Aryanian
Keyword(s):  
Transmission Lines ◽  
Linear Polarization ◽  
Microstrip Antenna ◽  
Large Scale ◽  
Impedance Bandwidth ◽  
Feeding System ◽  
Parasitic Patch ◽  
Measurement Results ◽  
Simulation Results ◽  
Dual Polarized

AbstractA dual-polarized dual-layer wideband microstrip antenna is presented. Dual orthogonal linear polarization and enhanced isolation between two ports are achieved by employing two radiating patches perpendicular to each other and printed on two separate substrates. Broadband behavior of the antenna is realized by using two wideband double-sided printed strip dipole and angular ring as radiating patches along with wideband baluns as feeding system. The patches are connected to baluns with two separate twin-lead transmission lines. Moreover, to improve the impedance bandwidth of the strip dipole significantly, a diamond-shape parasitic patch is artily incorporated into the top side of the upper layer of the antenna. The proposed antenna can easily be employed in large-scale arrays thanks to the feeding system of the patches. A prototype is fabricated to verify the simulation results where the measurement results show the −10 dB impedance bandwidths of 40% (4.3–6.5 GHz) and 43% (4.2–6.5 GHz) at port #1 and port #2, respectively. Besides, the isolation between two ports and the radiation gain are obtained around 35 dB and 9 dBi, respectively, which are useful for WLAN applications.

Study on Band-Gap Characteristics of EBG Material and its Application in Microstrip Antenna

2013 ◽  
Vol 391 ◽  
pp. 512-515
Author(s):  
Zhong Qing Wang ◽  
Li Dan Peng ◽  
Bao Li ◽  
Rong Sen Xu
Keyword(s):  
Band Gap ◽  
Microstrip Antenna ◽  
Impedance Matching ◽  
Dielectric Substrate ◽  
Resonant Frequencies ◽  
Electromagnetic Band Gap ◽  
Microstrip Patch ◽  
Gap Characteristics ◽  
Simulation Results ◽  
Coaxial Feed

In this letter, the characteristics of electromagnetic band-gap (EBG) material are studied, and then a novel microstrip antenna is proposed by using EBG structure. The antenna is constituted with loading the EBG structure into the dielectric substrate. The size of microstrip patch in EBG antenna with the coaxial feed is only 0.22×0.22 whereis the free space wavelength at 5.22 GHz, which the microstrip antenna is designed by the technique of patch grooved and short pin. The simulation results show that the EBG antenna has two resonant frequencies at 5.22GHz and 5.68GHz, the gains of them reaching to 5.32dB, 4.98dB respectively. Moreover, it has a good impedance matching in 5.14GHz~5.86GHz, which covers two bandwidths of WLAN.

scholarly journals New Compact Wideband Microstrip Antenna for Wireless Applications

2018 ◽  
Vol 7 (4) ◽  
pp. 85-92 ◽  
Author(s):  
S. Shandal ◽  
Y. S. Mezaal ◽  
M. Kadim ◽  
M. Mosleh
Keyword(s):  
Microstrip Antenna ◽  
Return Loss ◽  
Ground Plane ◽  
Computer Applications ◽  
Impedance Bandwidth ◽  
Substrate Thickness ◽  
Resonant Frequencies ◽  
Wireless Applications ◽  
Rectangular Patch ◽  
Rectangular Microstrip Antenna

In this paper, a miniature rectangular microstrip antenna over partial ground plane is presented by utilizing a space-filling property of fractal geometry in this design. It is simulated by High Frequency Software Simulator (HFSS) software, fabricated and tested by Vector Network Analyzer (VNA).Two types of slots are introduced in order to enhance antenna parameters such as bandwidth and return loss S1.1. This antenna is fabricated on FR4 substrate with a small size of (18 x 16 x 1.5) mm3, 1.5mm substrate thickness, 4.3 permittivity and 0.02 loss tangent. To feed this antenna,  microstrip line feed is used. This antenna is implemented for wide bandwidth (4.8-11.6) GHz, and has three resonant frequencies at 5.5GHz, 8.3GHz and 10.7GHz with impedance bandwidth of 6.8GHz. The gap value g between partial ground plane and rectangular patch at top layer is optimized in order to achieve optimal simulated return loss S1.1 is (-46,-32,-14) dB at three resonant frequencies (5.5, 8.3, 10.7) GHz and optimal radiation efficiency of 93.42% with gain of 3.63dB. The simulated results have tolerable agreement with measured results. This antenna is suitable for wireless computer applications within  C and X band  communications.

scholarly journals Metasurface Loaded High Gain Antenna based Microwave Imaging using Iteratively Corrected Delay Multiply and Sum Algorithm

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
M. Tarikul Islam ◽  
Md. Samsuzzaman ◽  
Salehin Kibria ◽  
Norbahiah Misran ◽  
Mohammad Tariqul Islam
Keyword(s):  
Breast Tissue ◽  
Low Cost ◽  
Dielectric Materials ◽  
High Gain ◽  
Microstrip Antennas ◽  
Positive Control ◽  
Microwave Imaging ◽  
Impedance Bandwidth ◽  
Multiple Tumor ◽  
Imaging Results

AbstractIn this paper, the design consideration is investigated for a cylindrical system with low-cost and low-loss dielectric materials for the detection of breast tumor using iteratively corrected delay multiply and sum (IC- DMAS) algorithm. Anomaly in breast tissue is one of the most crucial health issues for women all over the world today. Emergency medical imaging diagnosis can be harmlessly managed by microwave-based analysis technology. Microwave Imaging (MI) has been proved to be a reliable health monitoring approach that can play a fundamental role in diagnosing anomaly in breast tissue. An array of 16 high gain microstrip antennas loaded by Index Near-Zero (INZ) metasurfaces (MS), having the impedance bandwidth of 8.5 GHz (2.70–11.20 GHz) are used as transceivers for the system. The MS is used to increase the electrical length of the signal that results in the gain enhancements. The antennas are mounted in a cylindrical arrangement on a mechanical rotating table along with a phantom mounting podium. A non-reflective positive control switching matrix is used for transmitting and receiving microwave signals. A set of lab-made realistic heterogeneous breast phantoms containing skin, fat, glandular, and tumor tissue dielectric properties in individual layers are used to verify the performance of the proposed technique. The control of the mechanical unit, data collection, and post-processing is conducted via MATLAB. The system can detect multiple tumor objects. The imaging results and numerical Signal to Mean Ratio (SMR) values of the experiment validate the system efficiency and performance that can be a viable solution for tumor detections.

Design and characterization of an efficient multi-layered circularly polarized microstrip antenna

2015 ◽  
Vol 8 (7) ◽  
pp. 1101-1109 ◽  
Author(s):  
Pravin R. Prajapati ◽  
Amalendu Patnaik ◽  
M. V. Kartikeyan
Keyword(s):  
Microstrip Antenna ◽  
Axial Ratio ◽  
High Gain ◽  
Center Frequency ◽  
Impedance Bandwidth ◽  
Mobile Telecommunication ◽  
Defected Ground Structure ◽  
Circularly Polarized ◽  
Laboratory Prototype

A novel asymmetric “+” shaped fractal slotted circularly polarized microstrip antenna with a Yagi–Uda structure is proposed. Four asymmetric plus shape slots are embedded symmetrically in the center of all four quadrants of a square patch. To suppress undesirable higher modes, dumbbell-shaped defected ground structure (DGS) is introduced at the ground layer of the antenna. We introduce a method to compensate the reduction in gain occurring due to the presence of DGS, without changing in the overall size of the antenna. A 3 dB axial ratio bandwidth of 4 MHz at center frequency of 862 MHz, 10 dB impedance bandwidth of 13.20 MHz and a gain of 4.25 dB is achieved with the proposed antenna. A laboratory prototype of the proposed antenna is made to cross-verify the simulation results. Very good agreements between the two are obtained. The proposed antenna may prove useful for International Mobile Telecommunication application for designing high-gain arrays.

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