scholarly journals Genetically engineered tri-band microstrip antenna with improved directivity for mm-wave wireless application

2022 ◽  
Vol 6 (1) ◽  
pp. 1-15
Author(s):  
Arebu Dejen ◽  
◽  
Jeevani Jayasinghe ◽  
Murad Ridwan ◽  
Jaume Anguera ◽  
...  
Keyword(s):  
Microstrip Antenna ◽  
Fitness Function ◽  
Geometry Optimization ◽  
Genetically Engineered ◽  
Patch Antennas ◽  
Band Frequency ◽  
Wireless Applications ◽  
Low Profile ◽  
Wireless Application ◽  
Broadside Radiation

<abstract><p>Multi-band microstrip patch antennas are convenient for mm-wave wireless applications due to their low profile, less weight, and planar structure. This paper investigates patch geometry optimization of a single microstrip antenna by employing a binary coded genetic algorithm to attain triple band frequency operation for wireless network application. The algorithm iteratively creates new models of patch surface, evaluates the fitness function of each individual ranking them and generates the next set of offsprings. Finally, the fittest individual antenna model is returned. Genetically engineered antenna was simulated in ANSYS HFSS software and compared with the non-optimized reference antenna with the same dimensions. The optimized antenna operates at three frequency bands centered at 28 GHz, 40 GHz, and 47 GHz whereas the reference antenna operates only at 28 GHz with a directivity of 6.8 dB. Further, the test result exhibits broadside radiation patterns with peak directivities of 7.7 dB, 12.1 dB, and 8.2 dB respectively. The covered impedance bandwidths when S<sub>11</sub>$ \leq $-10 dB are 1.8 %, 5.5 % and 0.85 % respectively.</p></abstract>

scholarly journals Designing a tri-band microstrip antenna for targetting 5g broadband communications

2018 ◽  
Vol 218 ◽  
pp. 03015 ◽  
Author(s):  
Ahmad Firdausi ◽  
Galang Hakim ◽  
Mudrik Alaydrus
Keyword(s):  
Microstrip Antenna ◽  
Communication Systems ◽  
Reflection Factor ◽  
Promising Candidate ◽  
Band Frequency ◽  
Coupling Structure ◽  
Broadband Communications ◽  
Wireless Application ◽  
5G Communication ◽  
Proximity Coupling

One of the technologies that has wireless application nowadays was 5G mobile communication.This paper presents the designing of a Tri-band microstrip antenna for targeting 5G broadband communications, This element antenna has 3x3 rectangular patches with feeding line structures are branched. With the use of double feeding proximity coupling structure, we intend to maximize antenna bandwidth, therefore the antenna cover range tri-band frequency from 40 GHz to 70 GHz. The reflection factor comparation between simulation and measurement has a minimum with respective frequency at 45.3 GHz, 57 GHz, and 66 GHz. The total measurement bandwith 11.5 Ghz. With this combination tecnique, the proposed antenna is a promising candidate for 5G communication systems.

Low-Profile and Wideband Microstrip Antenna With Stable Gain for 5G Wireless Applications

2018 ◽  
Vol 17 (4) ◽  
pp. 621-624 ◽  
Author(s):  
Wenxing An ◽  
Yue Li ◽  
Haipeng Fu ◽  
Jianguo Ma ◽  
Weigang Chen ◽  
...  
Keyword(s):  
Microstrip Antenna ◽  
Wireless Applications ◽  
Low Profile

Bandwidth enhancement of compact patch antennas by loading inverted “L” and “T” strips

2020 ◽  
pp. 1-8
Author(s):  
Abdelheq Boukarkar ◽  
Rachdi Satouh
Keyword(s):  
Patch Antenna ◽  
Resonant Mode ◽  
Patch Antennas ◽  
Bandwidth Enhancement ◽  
Wireless Applications ◽  
Low Profile ◽  
Resonant Modes ◽  
Relative Bandwidth ◽  
Operating Bandwidth ◽  
Patch Edge

Abstract We propose simple designs of compact patch antennas with bandwidth enhancement. Firstly, an inverted “L” strip is loaded onto the corner of one radiating patch edge to create an additional resonant mode which can be combined with that one of the conventional patch to enhance the operating bandwidth. Secondly, the “L” strip is replaced by inverted “T” strip to improve further the bandwidth by creating two adjustable resonant modes. The two proposed patch antennas have the particularity of enhancing the bandwidth significantly without increasing their profile and their overall sizes. Two antenna prototypes are fabricated and tested. Measurements reveal that the patch antenna loaded with “L” strip has stable radiation characteristics with 5.2 times enhancement in the relative bandwidth compared with a conventional patch antenna. The antenna loaded with inverted “T” strip has wider bandwidth (6.25 times wider than the conventional patch) and covers the operating band 5.07–5.89 GHz (15%) with measured peak gain and peak efficiency of 6.25 dBi and 78%, respectively. The proposed antennas are easy to fabricate, have a low-profile, and exhibit good performances which make them good candidates to use in real wireless applications.

Alternative Approach In Enhancing The Bandwidth Of The Microstrip Antenna

2012 ◽  
Author(s):  
D. Yoharaaj ◽  
Alyani Ismail ◽  
Raja Syamsul Azmir Raja Abdullah
Keyword(s):  
Microstrip Antenna ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Area Network ◽  
Ieee 802.11B ◽  
Bandwidth Enhancement ◽  
Enhancement Technique ◽  
Wireless Applications ◽  
Wireless Application

Antena merupakan satu komponen penting dalam sistem komukasi wayarles. Antena mikrojalur boleh digunakan untuk aplikasi wayarles kerana ia mempunyai ciri–ciri seperti ringan, mudah dipasang dan dihasilkan dalam kuantiti yang banyak. Walaupun antenna mikrojalur mempunyai ciri–ciri tersebut yang menjadikannya sesuai untuk digunakan dalam aplikasi wayarles, namun ia mempunyai satu kekurangan yang agak serius, iaitu ciri lebar jalur yang sempit. Selalunya, antena mikrojalur mempunyai jalur di antara 1 – 3%. Tetapi, sekiranya kekurangan ini dapat diatasi, potensi antena mikrojalur boleh dimaksimumkan. Satu teknik alternatif untuk memperluaskan lebar jalur antena mikrojalur telah dikaji dan dicadangkan di sini. Aplikasi wayarles yang telah dipilih untuk dikaji ialah rangkaian kawasan tempatan tanpa wayar (WLAN) berasaskan kepada piawaian IEEE 802.11b. Di Malaysia, jalur WLAN adalah di antara 2.4 GHz hingga 2.48 GHz. Teknik yang dipilih untuk meluaskan lebar jalur ini ialah Antena Mikrojalur Dua Tampal Serupa Dengan Ruangan Udara (IDMA). Dengan menggunakan teknik ini, perluasan lebar jalur hingga lebih kurang 11% dapat dicapai. Jalur ini sememangnya dapat merangkumi jalur WLAN dengan frekuensi operasinya pada 2.45 GHz. Kata kunci: Rangkaian kawasan tempatan wayarles (WLAN); antena mikrojalur dua tampal serupa dengan ruangan udara (IDMA) Antenna is a vital component in wireless application systems. The microstrip antenna can be used for wireless applications as it has features such as light weight, easily mounted and it is easy to mass produce. Although there are many features that suits well for microstrip antenna to be deployed for wireless applications, there is a very serious limitation where it has a very narrow bandwidth. The typical bandwidth of the microstrip antennas is between 1 – 3%. If this limitation is eliminated, the microstrip antenna can be used to its full potential. An alternative bandwidth enhancement technique is studied and then proposed in order to broaden the bandwidth of the microstrip antenna. The wireless application that is selected to be studied is the Wireless Local Area Network (WLAN) based on the IEEE 802.11b standard. In Malaysia, this WLAN band spans from 2.4 GHz to 2.48 GHz. The bandwidth enhancement technique which is selected is the Identical Dual–Patch Microstrip Antenna with Air–Gap (IDMA). By using this technique, a bandwidth enhancement of about 11% has been achieved. This bandwidth very well covers the required WLAN band with an operating frequency of 2.45 GHz. Key words: Wireless local area network (WLAN); identical dual patch microstrip antenna with air–gap (IDMA)

Reconfigurable antennas with frequency, polarization, and pattern diversities for multi-radio wireless applications

2015 ◽  
Vol 9 (1) ◽  
pp. 121-132 ◽  
Author(s):  
Chilukuri Sulakshana ◽  
Lokam Anjaneyulu
Keyword(s):  
Wireless Communication ◽  
Radiation Pattern ◽  
Standing Wave ◽  
Return Loss ◽  
Reconfigurable Antennas ◽  
Reconfigurable Antenna ◽  
Patch Antennas ◽  
Band Frequency ◽  
Wireless Applications ◽  
Good Agreement

This paper presents different reconfigurable antennas with frequency, polarization, and pattern diversities. All the antennas have a very simple, novel, and compact structures, which are used for different wireless communication applications. These antennas employ switching for obtaining different reconfigurations. At first, an E-shaped antenna is designed for multi-band frequency reconfigurability. Second, circular and rectangular-shaped patch antennas are designed for achieving diversity in polarization. At last, a pattern reconfigurable antenna is designed with multiport excitation. These antenna performances are analyzed using various parameters such as return loss, radiation pattern, voltage standing wave ratio (VSWR), and gain. The prototypes of the antennas are fabricated and measured results along with simulated ones are presented. Both the results are in good agreement.

scholarly journals Review of Reconfigurable Microstrip Patch antenna for Wireless Application

2019 ◽  
Vol 7 (6) ◽  
pp. 25-28
Author(s):  
Shraddha Pandey ◽  
Pankaj Vyas
Keyword(s):  
Microstrip Antenna ◽  
Research Area ◽  
Antenna System ◽  
Microstrip Patch Antenna ◽  
Dual Band ◽  
Pin Diode ◽  
Patch Antennas ◽  
Microstrip Patch Antennas ◽  
Microstrip Patch ◽  
Wireless Application

In recent time, world have seen a rapid growth in wireless communication. Development in antenna from single band to dual band and multi band had made the antenna system more compact. A frequency reconfigurable microstrip antenna using a PIN diode for multiband operation is using many application and hot research area. In this paper, reconfigurable microstrip patch antennas and their types like frequency, polarization, radiation pattern and gain are described.

A multi-band switchable antenna for Wi-Fi, 3G Advanced, WiMAX, and WLAN wireless applications

2018 ◽  
Vol 10 (8) ◽  
pp. 991-997 ◽  
Author(s):  
Sadiq Ullah ◽  
Shaheen Ahmad ◽  
Burhan A. Khan ◽  
James A. Flint
Keyword(s):  
Ground Plane ◽  
Wireless Devices ◽  
Antenna Measurement ◽  
Band Frequency ◽  
Wireless Applications ◽  
Lumped Element ◽  
Low Profile ◽  
Mobile Satellite ◽  
The Given ◽  
Multi Band

AbstractThis paper presents a hexa-band frequency reconfigurable planar antenna, printed on a 1.6 mm thicker FR 4 substrate and backed by a truncated ground plane. The given antenna operates in four different frequency modes, depending on the state of the two lumped element switches. The proposed antenna works at six frequencies, 2.10, 2.40, 3.35, 3.50, 5.28, and 5.97 GHz. These frequency bands are dedicated to useful wireless applications, including 3G Advanced (2.10 GHz), Wireless Fidelity (Wi-Fi) (2.40 GHz), WiMAX (3.35 GHz), WiMAX (3.5 GHz), WLAN (5.28 GHz) and fixed-satellite and mobile satellite services (5.97 GHz). Satisfactory gain of 1.96, 2.20, 2.671, 2.81, 3.80, and 3.88 dBi, efficiency of 92.5, 94.5, 94.56, 95.0, 93.8, and 97.0% and bandwidth of 332, 485, 1020, 1080, 512, and 465 MHz has been obtained at 2.10, 2.40, 3.35, 3.50, 5.28, and 5.97 GHz, respectively. The modeling and simulations are conducted in CST MWS (2014). The simulated reflection coefficient and radiation pattern are validated in antenna measurement facility. In addition, the specific absorption rate of the antenna on a flat section of human body is also studied. The antenna is compact, low profile, and vastly suitable for multi-band wireless devices.

scholarly journals Low profile microstrip fed printed antenna for portable RF energy harvesting system

2018 ◽  
Vol 7 (2) ◽  
pp. 828
Author(s):  
Rajasekhar Alladi ◽  
Praveen V. Naidu ◽  
Raveendra P ◽  
Srinivasa Reddy Kotha ◽  
Siva Charan ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Microstrip Antenna ◽  
Low Cost ◽  
Printed Antenna ◽  
Rf Energy Harvesting ◽  
Wireless Applications ◽  
Low Profile ◽  
Portable System ◽  
Energy Harvesting System ◽  
Rf Energy

This work presents, a printed wideband microstrip antenna that can be used for portable RF energy harvesting applications. The antenna is designed, simulated and validated using 3D electromagnetic HFSS simulator. The targeted frequency band of operations are from 0.825 GHz to 1.05 GHz for catering GSM/3G wireless applications. Following the antenna design in the HFSS software, the structure has been fabricated on low cost substrate FR4 and the structure performance is analyzed experimentally. The achieved wideband, omni directional patterns with constant gain monopole antenna can be suitable for all portable system applications.

scholarly journals Design and Simulation of Microstrip Patch Antenna for Wireless Applications

2017 ◽  
Vol 2 (3) ◽  
pp. 365-368 ◽  
Author(s):  
Kawan F. Ahmed ◽  
Rawaz H. Abdullah
Keyword(s):  
Return Loss ◽  
Low Cost ◽  
Dielectric Substrate ◽  
Microstrip Patch Antenna ◽  
Patch Antennas ◽  
Antenna Gain ◽  
Wireless Applications ◽  
Microstrip Patch Antennas ◽  
Microstrip Patch ◽  
Low Profile

In this paper two rectangular microstrip patch antennas are designed to operate in and  bands, using Computer Simulation Technology (CST) Microwave Studio. The designed antenna can be used for industrial, scientific and medical (ISM) band applications. The RO4350B hydrocarbon ceramic laminates from ROGRES corporation substrate is chosen in the design of the dielectric substrate of the antennas. The designed antenna has low profile, low cost, easy fabrication and good isolation. The parameters such as return loss, voltage standing wave ratio (VSWR), antenna gain, radiation pattern has been simulated and analyzed.

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