Liquid Crystal Bow - Tie Microstrip antenna for Wireless Communication Applications

Madhav, B. T. P.; Pisipati, V. G. K. M.; Khan, Habibulla; Prasad, V.G.N.S; Kumar, Keshav; Bhavani, K V L; Kumar, Manish

doi:10.25103/jestr.042.03

Cited by 7 publications

(5 citation statements)

References 8 publications

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“…A 45 0 -rotated square slot in ground plane excited by a microstrip line radiator in [12] caters the CP radiation with the incorporation of a pair of stubs on opposite sides of that slot. Researchers proposed different models with CP with compact dimensions and good axial ratio bandwidth [13][14][15][16][17][18][19][20][21][22]. In this work, a planar and compact antenna design is proposed.…”

Section: Introductionmentioning

confidence: 99%

Design of CPW fed f-shaped circularly polarized antenna for amateur radio vehicular communications

Ramakrishna¹,

Madhav²,

Amulya³

et al. 2017

IJET

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In this paper a compact circularly polarized antenna is proposed to operate in X-band spectrum. The F-shaped monopole element is used as the radiating structure and the closed coplanar-waveguide ground is used on a FR4 substrate. The proposed feeding mechanism with asymmetric ground planes and the three rectangular strips connected to the feed line. The proposed antenna operates with a -10dB reflection coefficient bandwidth from 9.3 GHz to 13 GHz and the circular polarized performance is attained from 9.8 GHz – 11.2 GHz with axial ratio less than 3dB (AR < 3dB). The antenna gain in the boresight direction is found to be achieved as 4.34dB and radiates with a maximum efficiency of 90% which is suited for amateur radio applications in X-band spectrum based vehicular communications.

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Section: Introductionmentioning

confidence: 99%

Design of CPW fed f-shaped circularly polarized antenna for amateur radio vehicular communications

Ramakrishna¹,

Madhav²,

Amulya³

et al. 2017

IJET

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“…In recent years, bowtie antennas have been a hot topic for intense theoretical and experimental investigation, impelled by its unique features and advantages, including simple planar structure, stable broadband performance, strong near-field enhancement [1][2][3][4][5][6][7][8][9][10][11][12][13]. One simple configuration used to achieve broadband characteristics is a biconical antenna formed by two cones, and the bowtie antenna is a simplified two-dimensional structure using two triangular shapes separated with a small gap that resembles the shape of a bowtie [14] [15].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, the resonant frequency of a bowtie antenna can be designed and tuned by appropriately modifying and scaling the bowtie geometry, such as the arm length, the flare angle, and the feed gap width. This enables the bowtie antenna to have various applications over a wide frequency range, including extreme-ultraviolet light generation [1], local optical absorption [2], Terahertz-wave near-field imaging [3], mid-infrared plasmonic antennas [4], microwave radar [5], wireless communications [6], and flexible RF devices [7].…”

Section: Introductionmentioning

confidence: 99%

Integrated broadband bowtie antenna on transparent substrate

et al. 2015

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The bowtie antenna is a topic of growing interest in recent years. In this paper, we design, fabricate, and characterize a modified gold bowtie antenna integrated on a transparent glass substrate. We numerically investigate the antenna characteristics, specifically its resonant frequency and enhancement factor. We simulate the dependence of resonance frequency on bowtie geometry, and verify the simulation results through experimental investigation, by fabricating different sets of bowtie antennas on glass substrates utilizing CMOS compatible processes and measuring their resonance frequencies. Our designed bowtie antenna provides a strong broadband electric field enhancement in its feed gap. The far-field radiation pattern of the bowtie antenna is measured, and it shows dipole-like characteristics with large beam width. Such a broadband antenna will be useful for a myriad of applications, ranging from wireless communications to electromagnetic wave detection.

show abstract

“…In addition, the resonant frequency of a bowtie antenna can be designed and tuned by appropriately modifying and scaling the bowtie geometry, such as its arm length, flare angle, and feed gap width. This enables the bowtie antenna to have various applications over a wide frequency range, including extremeultraviolet light generation [2], optical antennas [3,16,5], Terahertz-wave optoelectronics [17], mid-infrared plasmonic antennas and sensors [8,18], microwave radar [7], wireless communications [4,19], flexible RF devices [20], complex electromagnetic structures [21], and photonic detection of freespace electromagnetic waves [22][23][24].…”

mentioning

confidence: 99%

“…INTRODUCTION n recent years, bowtie antenna has been a hot topic for intense theoretical and experimental investigation, impelled by its unique features and advantages, including simple planar structure, stable broadband performance, strong near-field enhancement [1][2][3][4][5][6][7][8]. One simple configuration used to achieve broadband characteristics is a biconical antenna formed by two cones, and the bowtie antenna is a simplified two-dimensional structure using two triangular shapes separated by a small gap that resembles the shape of a bowtie [9,10].…”

mentioning

confidence: 99%

Integrated Broadband Bowtie Antenna on Transparent Silica Substrate

Zhang

Chung

Wang

et al. 2016

Antennas Wirel. Propag. Lett.

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Abstract-The bowtie antenna is a topic of growing interest in recent years. In this paper, we design, fabricate, and characterize a modified gold bowtie antenna integrated on a transparent silica substrate. The bowtie antenna is designed with broad RF bandwidth to cover the X-band in the electromagnetic spectrum. We numerically investigate the antenna characteristics, specifically its resonant frequency and enhancement factor. Our designed bowtie antenna provides a strong broadband electric field enhancement in its feed gap. Taking advantage of the low-k silica substrate, high enhancement factor can be achieved without the unwanted reflection and scattering from the backside silicon handle which is the issue of using an SOI substrate. We simulate the dependence of resonance frequency on bowtie geometry, and verify the simulation results through experimental investigation, by fabricating different sets of bowtie antennas on silica substrates and then measuring their resonance frequencies. In addition, the farfield radiation pattern of the bowtie antenna is measured, and it shows dipole-like characteristics with large beam width. Such a broadband antenna will be useful for a myriad of applications, ranging from photonic electromagnetic wave sensing to wireless communications.

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Liquid Crystal Bow - Tie Microstrip antenna for Wireless Communication Applications

Cited by 7 publications

References 8 publications

Design of CPW fed f-shaped circularly polarized antenna for amateur radio vehicular communications

Design of CPW fed f-shaped circularly polarized antenna for amateur radio vehicular communications

Integrated broadband bowtie antenna on transparent substrate

Integrated Broadband Bowtie Antenna on Transparent Silica Substrate

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