A High Gain and Directivity Bow Tie Antenna Based on Single-Negative Metamaterial

Liu, Li; Zhang, Chengguang; Liu, Yu; Hua, Yujin

doi:10.1590/2179-10742018v17i21116

Cited by 12 publications

(4 citation statements)

References 24 publications

(20 reference statements)

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“…A ground penetrating radar (GPR) was recently designed by Karamzadeh et al in 2016 [17], in which a bow-tie antenna was utilized aiming at improving its performance. Also, Liu et al developed a bow-tie antenna that was used in GPR applications [18]. They adjusted the parameters of the antenna to change its equivalent capacitance and inductance, while it was tuned to operate in the frequency range from 0.5 to 1.2 GHz, thereby realizing an ultra-wideband antenna.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2020

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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.

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Section: Introductionmentioning

confidence: 99%

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

et al. 2020

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“…According to the needs of these specific applications, performances of PBAs have been tried to be improved. There are many useful methodologies such as implementations of metamaterials, feeding line modifications, employment of slots, different ground plane variations, matching stubs and lumped elements, fractal and array structures, parasitic directors, reflectors and additional bow extensions are suggested in order to improve the performances of PBA in terms of radiation pattern, gain, and bandwidth. However, relatively smaller structures have comparably narrower bandwidths while the ones with relatively wider bandwidth have larger dimensions .…”

Section: Introductionmentioning

confidence: 99%

Compact wideband tapered‐fed printed bow‐tie antenna with rectangular edge extension

Bozdağ

Seçmen

2019

Micro & Optical Tech Letters

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In this article, a wideband printed bow‐tie antenna is designed entire band of GPS (L5), PCS, IMT‐2000, Bluetooth, Wi‐Fi, WiMAX bands, and the most of frequency range of UWB. Apart from the traditional designs, the proposed antenna includes tapered printed line with a feeding point patch and triangular bows with rectangular edge extensions, which makes the antenna more compact. The antenna realized at the frequency band of 1.49‐9.5 GHz (more than 6.3:1 ratio bandwidth) has the dimensions of 122 mm × 56 mm (0.61λ0 × 0.28λ0). According to measurement results, the realized gain varies between almost 1 and 6.5 dBi with 4.44 dBi average, which are in good agreement with simulation results. Radiation patterns at the lower frequencies of operating band show dipole like radiation pattern with higher cross‐pol discrimination levels while they degrade at the higher frequencies due to increase in gain.

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“…Selain itu, sistem GPR juga memperhatikan nilai late-time ringing yang dapat mempengaruhi tingkat resolusi kerja antena. Antena ultrawide-band (UWB) dengan frekuensi antara 10 MHz -10 GHz merupakan antena yang memenuhi karakteristik sistem GPR [3], [4].…”

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“…Antena bowtie memiliki keunggulan yaitu desain yang compact dan ringan dibandingkan dengan antena yang lainnya [6]. Namun, gain dan direktivitas antena bowtie tergolong relatif kecil [4].…”

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Pengembangan Antena Bowtie 2,1 GHz Terintegrasi Artificial Magnetic Conductor (AMC) untuk Aplikasi Antena Transmitter pada Sistem Ground Penetrating Radar (GPR)

Nur

Widyananda

Wijanto

2020

JRE

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Radio Detection and Ranging (Radar) adalah suatu sistem yang memanfaatkan gelombang elektromagnetik untuk mendeteksi letak suatu objek. Sistem radar bekerja berdasarkan karakteristik gelombang elektromagnetik yang dipancarakan dan diterima kembali oleh sistem. Ground Penetrating Radar (GPR) atau Surface Penetrating Radar (SPR) merupakan salah satu teknologi yang memanfaatkan sistem radar untuk mendeteksi letak suatu objek yang berada jauh di bawah permukaan tanah. GPR dapat diaplikasikan pada berbagai bidang seperti bidang lingkungan, arkeologi, sipil, militer, dan sebagainya [1], [2].Sistem GPR memiliki karakteristik antena dengan bandwidth yang lebar dan lebar pulsa yang sempit serta

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A High Gain and Directivity Bow Tie Antenna Based on Single-Negative Metamaterial

Cited by 12 publications

References 24 publications

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

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

Compact wideband tapered‐fed printed bow‐tie antenna with rectangular edge extension

Pengembangan Antena Bowtie 2,1 GHz Terintegrasi Artificial Magnetic Conductor (AMC) untuk Aplikasi Antena Transmitter pada Sistem Ground Penetrating Radar (GPR)

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