Designs of Regular Shape Microstrip Antennas Backed by Bow-tie Shape Ground Plane for Enhanced Antenna Characteristics

2021 ◽  
pp. 153823
Author(s):  
Poonam A. Kadam ◽  
Amit A. Deshmukh
Keyword(s):  
Ground Plane ◽  
Microstrip Antennas ◽  
Regular Shape ◽  
Bow Tie ◽  
Antenna Characteristics

scholarly journals Bandwidth Improvement in Bow-Tie Microstrip Antennas: The Effect of Substrate Type and Design Dimensions

2020 ◽  
Vol 10 (2) ◽  
pp. 504 ◽  
Author(s):  
Halgurd N. Awl ◽  
Yadgar I. Abdulkarim ◽  
Lianwen Deng ◽  
Mehmet Bakır ◽  
Fahmi F. Muhammadsharif ◽  
...  
Keyword(s):  
Simulation Analysis ◽  
Microstrip Antennas ◽  
Ultra Wideband ◽  
The Novel ◽  
Substrate Type ◽  
Antenna Performance ◽  
Uwb Applications ◽  
The Impact ◽  
Bow Tie ◽  
Good Agreement

In this work, the impact of substrate type and design dimensions on bow-tie microstrip antenna performance and bandwidth improvement is presented both numerically and experimentally at 4–8 GHz. The finite integration technique (FIT)-based high-frequency electromagnetic solver, CST Microwave Studio, was used for the simulation analysis. For this purpose, four bow-tie microstrip antennas were designed, fabricated, and measured upon using different materials and substrate thicknesses. Precise results were achieved and the simulated and experimental results showed a good agreement. The performance of each antenna was analyzed and the impact of changing material permittivity, antenna dimensions and substrate thicknesses on antenna performance were investigated and discussed. The measured results indicated that the slot bow-tie antenna, which is one of the novel aspects of this study, is well matched and a 2-GHz bandwidth [5–7 GHz] is obtained, which is about 50% bandwidth in comparison with the wideband applications [4–8 GHz]. The proposed structure is useful in ultra-wideband (UWB) applications. This study provides guidance in selecting material types and thicknesses for microstrip antennas based on desired applications.

Bow-tie antenna using high-impedance ground plane

2008 ◽  
Vol 50 (11) ◽  
pp. 2928-2931 ◽  
Author(s):  
Yi-Chieh Lee ◽  
Jwo-Shiun Sun
Keyword(s):  
Ground Plane ◽  
High Impedance ◽  
Bow Tie

Design of reflectarrays using slotted microstrip antennas with via connecting to ground plane

2004 ◽  
Vol 43 (5) ◽  
pp. 368-370 ◽  
Author(s):  
S. M. Meriah ◽  
E. Cambiaggio ◽  
F. T. Bendimerad ◽  
R. Staraj ◽  
J. P. Damiano
Keyword(s):  
Ground Plane ◽  
Microstrip Antennas

scholarly journals Perancangan dan Realisasi Antena Mikrostrip Fraktal Kӧch untuk Aplikasi TV Digital di Dalam Ruangan

2020 ◽  
Vol 8 (1) ◽  
pp. 16
Author(s):  
IRSANDI ANGGELINA ◽  
TRASMA YUNITA ◽  
LEVY OLIVIA NUR
Keyword(s):  
Return Loss ◽  
Ground Plane ◽  
Microstrip Antennas ◽  
Digital Tv ◽  
Center Frequency ◽  
Digital Tv Broadcasting ◽  
Simulation Results ◽  
Koch Fractal ◽  
Study Designs ◽  
Tv Broadcasting

ABSTRAK Siaran TV digital umumnya menggunakan antena tipe Yagi dan Kubikal yang berukuran besar sehingga tidak fleksibel digunakan di dalam ruangan. Penelitian ini merancang dan merealisasikan antena mikrostrip miniaturisasi fraktal Köch agar dimensi antena lebih kecil dan bandwidth lebih besar sehingga cocok digunakan di dalam ruangan. Miniaturisasi antena berupa fraktal Köch iterasi-1 pada patch dan teknik slot iterasi-2 pada ground plane menggunakan pencatuan mikrostrip proximity coupled feed pada alokasi frekuensi TV digital Indonesia 478 – 694 MHz dengan bandwidth 216 MHz. Antena dirancang pada software perancang antena, direalisasikan, diukur, dan diaplikasikan pada TV digital. Hasil simulasi antena menunjukkan bandwidth yang lebih besar dari spesifikasi yaitu 245,99 MHz pada rentang frekuensi 477,81 – 723,8 MHz. Return loss dan gain untuk direalisasikan sebesar -16,67 dB dan 3,085 dB pada frekuensi tengah 586 MHz. Pola radiasi berbentuk bidirectional dan polarisasi berbentuk linier. Panjang dan lebar antena hasil realisasi 17,33 cm X 17,33 cm. Kata Kunci: TV digital, antena, mikrostrip, Fraktal, Köch ABSTRAC Digital TV broadcasting generally uses large Yagi and Cubical type antennas, so it is not flexible to be used indoor. This study designs and applies miniaturization of Köch fractal microstrip antennas to obtain smaller dimensions and larger bandwidth. The miniaturization of antenna are Köch fractal iteration-1 on patch and iteration-2 slot technique on ground plane using proximity coupled feed at frequency allocation 478 – 694 MHz and the bandwidth is 216 MHz. The antenna was designed in software and developed, measured, and applied to digital TV. Antenna simulation results show a greater bandwidth than specification, 245.99 MHz, at the frequency range of 477.81 – 723.8 MHz. Return loss and gain simulation results that meet the specifications to be applied to digital TV antennas are -16.67 and 3.085 dB at 586 MHz center frequency. The radiation pattern is bidirectional and polarization is linear. The length and width dimensions of the antenna is 17.33 cm × 17.33 cm. Keywords: TV digital, antenna, microstrip, Fractal, Köch

scholarly journals Design Studies of Ultra-Wideband Microstrip Antennas with a Small Capacitive Feed

2007 ◽  
Vol 2007 ◽  
pp. 1-8 ◽  
Author(s):  
Veeresh G. Kasabegoudar ◽  
Dibyant S. Upadhyay ◽  
K. J. Vinoy
Keyword(s):  
Patch Antenna ◽  
Ground Plane ◽  
Microstrip Antennas ◽  
Design Criterion ◽  
Air Gap ◽  
Ultra Wideband ◽  
Design Parameters ◽  
Impedance Bandwidth ◽  
Rectangular Patch ◽  
Almost All

The design of an ultra-wideband microstrip patch antenna with a small coplanar capacitive feed strip is presented. The proposed rectangular patch antenna provides an impedance bandwidth of nearly 50%, and has stable radiation patterns for almost all frequencies in the operational band. Results presented here show that such wide bandwidths are also possible for triangular and semiellipse geometries with a similar feed arrangement. The proposed feed is a very small strip placed very close to the radiator on a substrate above the ground plane. Shape of the feed strip can also be different, so long as the area is not changed. Experimental results agree with the simulated results. Effects of key design parameters such as the air gap between the substrate and the ground plane, the distance between radiator patch and feed strip, and the dimensions of the feed strip on the input characteristics of the antenna have been investigated and discussed. As demonstrated here, the proposed antenna can be redesigned for any frequency in the L-, S-, C-, or X-band. A design criterion for the air gap has been empirically obtained to enable maximum antenna bandwidth for all these operational frequencies.

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