scholarly journals Design and Analysis of Multiband Bloom Shaped Patch Antenna for IoT Applications

2021 ◽  
Vol 12 (3) ◽  
pp. 4578-4585
Author(s):  
R Ramasamy Et.al
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Low Cost ◽  
Substrate Material ◽  
Experimental Results ◽  
Antenna Design ◽  
Ratio Measurement ◽  
Antenna Structure ◽  
Iot Applications ◽  
Gain Measurement

A Microstrip Bloom shaped patch antenna is proposed for Internet of Things (IoT) application. This antenna operates at multiband frequencies between 1.6 GHz to 2.45 GHz. The Bloom shaped antenna provides multiband response that examined in HFSS Software. In this proposed antenna design, FR4 substrate material is used because it is easily available and low cost.  The proposed antenna structure simulated and analyzed in different experimental results including return loss measurement, Voltage Standing Wave Ratio measurement, radiation pattern measurement and gain measurement. This proposed Multiband Microstrip Bloom shaped patch antenna provides better experimental results in all the parameters

scholarly journals Design of Horse Shoe Patch antenna for wireless Applications

2018 ◽  
Vol 3 (1) ◽  
pp. 14-16
Author(s):  
N. Jayanti ◽  
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Substrate Material ◽  
Antenna Design ◽  
Substrate Thickness ◽  
Far Field ◽  
Wireless Applications ◽  
Substrate Layer ◽  
Cst Microwave Studio

This paper illustrates the design and analysis of a horseshoe patch antenna and compares the results of antenna for Duroid (ɛr = 2.2), Rogers RO4350 (ɛr = 3.66) and FR-4 (ɛr = 4.3) as substrate material and another comparison is between proposed antenna with and without an upper layer of substrate (duroid). The substrate thickness taken for this antenna is 1.57mm and for the substrate layer above the patch, thickness is 0.2mm. Comparison of these different structures has been done on the basis of return loss, VSWR, efficiency, and far-field. In these structures, a horse shoe-shaped patch is placed above the substrate. The proposed antenna has been designed and simulated using CST microwave studio 2014. The proposed antenna design can be used for WLAN, WiMAX, and IMT applications.

scholarly journals Inset-fed Multiband Square Patch Antenna on Flexible substrate for Fifth-Generation Wireless Communication

2021 ◽  
pp. 106-118
Author(s):  
Sujata S. K. ◽  
P. S. Aithal
Keyword(s):  
Frequency Band ◽  
Patch Antenna ◽  
Return Loss ◽  
Flexible Substrate ◽  
Dielectric Substrate ◽  
Industrial Applications ◽  
Substrate Material ◽  
Antenna Design ◽  
Fifth Generation ◽  
Research Analysis

Purpose: Over a decade, the antenna has sparked considerable interest in the 5G frequency band in the wireless domain (covering industrial applications, home automation and mobile communication) because of its numerous advantages like compact, conformal to surfaces, easily integrated with the devices, etc. In general, an Antenna can be defined as a conductor which is exposed to space operable for a specific application. The purpose of the study is to design the Slotted patch antenna for 5G applications on a flexible dielectric substrate material which makes the antenna compact in its design aspect. Design/Methodology/Approach: Initially, the antenna design is carried out using the theoretical framework based on the available equations. The microwave studio software - Computer Simulation Technology (CST) is used to create and model the different antennas. Findings/Result: Based on the simulated models, the slotted patch antenna design 5 has 2 bands namely: 3.25 GHz, the return loss is -17.47 dB, and 5.89GHz, the return loss is -21.37dB. Whereas design 6 has 4 resonant bands measured at 2.04 GHz, the return loss (RL) is -11.68 dB, at 5.80GHz, the RL is -22.36 dB, at 7.14 GHz, the RL is -28.71 dB and at 8.83 GHz, the RL is -13.36 dB. The maximum bandwidth achieved for slotted patch antenna design 5 is 5% and the maximum bandwidth achieved for slotted patch antenna design 6 is 8%. Whereas the design of Multi slotted patch antenna flexible substrate design 7 and design 8 has the maximum achieved bandwidth of 10 %. Originality/Value: The design of slotted patch and multi slotted patch antenna using inset feed method on a flexible substrate for 5G frequency band. Paper Type: Design based Research Analysis.

scholarly journals Material Modeling Approach for Graphene Antenna Design

2015 ◽  
Vol 16 (3) ◽  
pp. 480
Author(s):  
Rajni Bala ◽  
Anupma Marwaha ◽  
Sanjay Marwaha
Keyword(s):  
Patch Antenna ◽  
Substrate Material ◽  
Surface Conductivity ◽  
Antenna Design ◽  
Electromagnetic Properties ◽  
Reconfigurable Antenna ◽  
Ground Structure ◽  
Antenna Structure ◽  
Wireless Applications ◽  
Almost All

For the last few decades, in the field of patch antenna design for wireless applications the researchers have gone through experimenting with almost all types of variations in shape and dimensions of patch element, substrate material, exploiting with patch and ground structure with slots. Very little attention has been given to explore the pioneering approach of using different patch material improving the performance of antennas in terahertz regime. The graphene material is lately being used as patch material as it possesses a number of desirable electromagnetic and mechanical properties that assists in providing flexible and reconfigurable antenna structure. The material tunable conductivity accounts for the superior electromagnetic properties. Hence the authors have presented the simplified analytical solution for graphene surface conductivity to be utilized to characterize the graphene antenna parameters.

scholarly journals Performance Enhancement of Metamaterial Loaded Micro Strip Patch Antenna Design Using Gallium Doped Ba-Sr Hexagonal Ferrite as Substrate Material for X-band Applications

2021 ◽  
Author(s):  
Monika Rani ◽  
kamal Jit bhatia ◽  
Harjitpal Singh ◽  
Harsimrat Kaur ◽  
Nancy Gupta
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Performance Enhancement ◽  
Substrate Material ◽  
Performance Comparison ◽  
Hexagonal Ferrite ◽  
Center Frequency ◽  
Antenna Structure ◽  
X Band ◽  
Ferrite Substrate

Abstract An experimental study of microstrip patch antenna designed and fabricated on FR4 epoxy substrate is presented. Further a performance comparison of designed antenna is made with proposed design using Gallium doped Ba-Sr hexagonal ferrite substrate. Microstrip feed line is used for inputting the signal to antenna. The whole simulation is done on HFSS simulator (version 13.0).The center frequency for proposed antenna is 10GHz and is optimized for significant performance parameters viz return loss, bandwidth, VSWR and gain. It was observed that the designed antenna provides better results with ferrite substrate as compared to FR4 epoxy substrate showing -10db broad bandwidth of 4.2GHz in the frequency region 8.2GHz to 12.4GHz. Although, the results of other parameters like return loss, VSWR and gain are found to be optimum with FR4 substrate as compared to mentioned ferrite substrate. The prototype of proposed antenna with FR4 epoxy substrate is fabricated and tested to attain the experimental results. The measured results are found to be better than simulated results. Thus the proposed antenna structure can be considered suitable for microwave communication application in X-band.

scholarly journals A Novel Electrically Small Ground-Penetrating Radar Patch Antenna with a Parasitic Ring for Respiration Detection

Sensors ◽  
2021 ◽  
Vol 21 (6) ◽  
pp. 1930
Author(s):  
Di Shi ◽  
Taimur Aftab ◽  
Gunnar Gidion ◽  
Fatma Sayed ◽  
Leonhard M. Reindl
Keyword(s):  
Ground Penetrating Radar ◽  
Patch Antenna ◽  
Low Cost ◽  
Substrate Material ◽  
Geometric Parameters ◽  
Gas Explosions ◽  
Aerial Vehicle ◽  
Electromagnetic Characteristics ◽  
Ground Penetrating ◽  
Quick Search

An electrically small patch antenna with a low-cost high-permittivity ceramic substrate material for use in a ground-penetrating radar is proposed in this work. The antenna is based on a commercial ceramic 915 MHz patch antenna with a size of 25 × 25 × 4 mm3 and a weight of 12.9 g. The influences of the main geometric parameters on the antenna’s electromagnetic characteristics were comprehensively studied. Three bandwidth improvement techniques were sequentially applied to optimize the antenna: tuning the key geometric parameters, adding cuts on the edges, and adding parasitic radiators. The designed antenna operates at around 1.3 GHz and has more than 40 MHz continuous −3 dB bandwidth. In comparison to the original antenna, the −3 and −6 dB fractional bandwidth is improved by 1.8 times and 4 times, respectively. Two antennas of the proposed design together with a customized radar were installed on an unmanned aerial vehicle (UAV) for a quick search for survivors after earthquakes or gas explosions without exposing the rescue staff to the uncertain dangers of moving on the debris.

scholarly journals Miniaturized Broadband-Multiband Planar Monopole Antenna in Autonomous Vehicles Communication System Device

Electronics ◽  
2021 ◽  
Vol 10 (21) ◽  
pp. 2715
Author(s):  
Ming-An Chung ◽  
Chih-Wei Yang
Keyword(s):  
Communication System ◽  
Autonomous Vehicles ◽  
Low Cost ◽  
Antenna Design ◽  
Dual Band ◽  
Impedance Change ◽  
Antenna Structure ◽  
Low Profile ◽  
Performance Results ◽  
Wireless Standards

The article mainly presents that a simple antenna structure with only two branches can provide the characteristics of dual-band and wide bandwidths. The recommended antenna design is composed of a clockwise spiral shape, and the design has a gradual impedance change. Thus, this antenna is ideal for applications also recommended in these wireless standards, including 5G, B5G, 4G, V2X, ISM band of WLAN, Bluetooth, WiFI 6 band, WiMAX, and Sirius/XM Radio for in-vehicle infotainment systems. The proposed antenna with a dimension of 10 × 5 mm is simple and easy to make and has a lot of copy production. The operating frequency is covered with a dual-band from 2000 to 2742 MHz and from 4062 to beyond 8000 MHz and, it is also demonstrated that the measured performance results of return loss, radiation, and gain are in good agreement with simulations. The radiation efficiency can reach 91% and 93% at the lower and higher bands. Moreover, the antenna gain can achieve 2.7 and 6.75 dBi at the lower and higher bands, respectively. This antenna design has a low profile, low cost, and small size features that may be implemented in autonomous vehicles and mobile IoT communication system devices.

scholarly journals Analysis of substrateintegrated frequency selective surface antenna for IoT applications

2020 ◽  
Vol 18 (2) ◽  
pp. 875
Author(s):  
Govardhani Immadi ◽  
M. Venkata Narayana ◽  
A. Navya ◽  
C. Anudeep Varma ◽  
A. Abhishek Reddy ◽  
...  
Keyword(s):  
Patch Antenna ◽  
Low Cost ◽  
Frequency Selective Surface ◽  
Microstrip Patch Antenna ◽  
Iot Applications ◽  
The Past ◽  
Microstrip Patch ◽  
Rectangular Microstrip Patch Antenna ◽  
Frequency Selective ◽  
Tan Δ

<p>Antennas are long used for communication of data since a century and their usage has been diversified over the past two decades and the antennas also entered the domain of medical fields. A rectangular microstrip patch antenna has been designed on a substrate integrated waveguide with frequency selective surface which is in the shape of a square. The design of this antenna with SIW are done by using CST on a low cost FR4 substrate where є<sub>r</sub> =4.4, h=1.58 mm and tan δ=0.0035. The SIW structure merit is utilized on the traditional FSS is simulated and verified by using CST.</p>

scholarly journals Conformal and Disposable Antenna-Based Sensor for Non-Invasive Sweat Monitoring

Sensors ◽  
2018 ◽  
Vol 18 (12) ◽  
pp. 4088 ◽  
Author(s):  
Angie Eldamak ◽  
Elise Fear
Keyword(s):  
Dielectric Properties ◽  
Patch Antenna ◽  
Low Cost ◽  
Salt Solutions ◽  
Paper Substrate ◽  
Antenna Structure ◽  
Non Invasive ◽  
Nacl Concentration ◽  
Artificial Sweat ◽  
Cellulose Filter

This paper presents a feasibility study for a non-wearable, conformal, low cost, and disposable antenna-based sensor for non-invasive hydration monitoring using sweat. It is composed of a patch antenna implemented on a cellulose filter paper substrate and operating in the range 2–4 GHz. The paper substrate can absorb liquids, such as sweat on the skin, through two slots incorporated within the antenna structure. Thus, the substrate dielectric properties are altered according to the properties of the absorbed liquid. Changes in reflection-based measurements are used to analyze salt solutions and artificial sweat, specifically the amount of sampled solution and the sodium chloride (NaCl) concentration. Using the shift in resonant frequency and magnitude of the reflection coefficient, NaCl concentrations in the range of 8.5–200 mmol/L, representing different hydration states, are detected. The measurements demonstrate the feasibility of using microwave based measurements for hydration monitoring using sweat.

scholarly journals A t-shaped partial ground microstrip patch antenna based UHF sensor for partial discharge detection

2020 ◽  
Vol 20 (2) ◽  
pp. 704
Author(s):  
Nayli Adriana Azhar ◽  
Norazizah Mohd Aripin ◽  
Goh Chin Hock ◽  
Nayla Ferdous ◽  
Saidatul Hamidah
Keyword(s):  
Patch Antenna ◽  
Return Loss ◽  
Partial Discharge ◽  
Signal Strength ◽  
Substrate Material ◽  
Microstrip Patch Antenna ◽  
Microstrip Patch ◽  
Preventative Measures ◽  
Design Requirements ◽  
Simulation Results

Continuous partial discharge (PD) monitoring and early PD detection is important in making sure the necessary preventative measures can be taken accordingly. This paper proposed a T-shaped partial ground microstrip patch antenna that is able to detect PD signal within the UHF range. The antenna was designed and simulated using CST Microwave Studio. The antenna was then fabricated using FR4 substrate material and tested for reception test. The simulation results and the analysis from the fabricated antenna confirmed that the proposed antenna able to detect PD signal at UHF range (specifically at about 500 MHz) and fulfilled the design requirements in terms of the return loss, VSWR, bandwidth and gain. Reception test had confirmed that the proposed antenna was able to detect PD signals that are located at maximum distance, ranges from 37 cm to 70 cm (depending on the PD signal strength). The proposed antenna also had succesfully detected PD occurances at 300 MHz to 700 MHz. In conclusion, the proposed T-shaped partial ground microstrip patch antenna had been successfully designed and able to detect PD signal emitted in the UHF range.

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