Design of broadband rectangular sleeve dipole antenna covering 850&amp;#x2013;2500 MHz

Khumanthem, T.; Ahirwar, S.D.; Sairam, C.; Kumar, Ashwani

doi:10.1109/amta.2008.4763094

Cited by 5 publications

(4 citation statements)

References 1 publication

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“…These antenna designs operated in different frequency ranges as follows: 400-900 MHz by Wang et al [15], 500-2,100 MHz by Thomas et al [5] and 120-520 MHz by Zhang et al [16]. Sleeve dipole antenna with 2.9:1 bandwidth is reported in [17]. Sleeve dipole antenna with three sleeves was reported in [18].…”

Section: Introductionmentioning

confidence: 99%

Design of Broadband Compact Canonical Triple-Sleeve Antenna Operating in UHF Band

Sairam

Vakula

Chakravarthy

2021

J Electromagn Eng Sci

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In this paper, a novel compact broadband antenna at UHF frequencies is presented with canonical shapes. Hemispherical, conical and cylindrical shapes have all been considered for antenna configuration. The designed antenna provides an instantaneous frequency range from 370 to 5,000 MHz with omnidirectional characteristics. The antenna was simulated in CST Microwave Studio, fabricated and evaluated; the results are presented. The simulated and measurement results are in good agreement. The antenna has voltage standing wave ratio (VSWR) ≤ 1.9:1 in 400–570 MHz, 2,530–3,740 MHz and 4,180–4,620 MHz; it has VSWR ≤ 3:1 over the operating frequency range 370–5,000 MHz and the measured gain varies from -0.6 to 4.5 dBi over the frequency band. The concept of canonical-shaped antenna elements and the incorporation of triple sleeves resulted in a reduction of the length of the antenna by 62% compared to the length of a half-wave dipole antenna designed at the lowest frequency. The antenna can be used for trans-receiving applications in wireless communication.

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Section: Introductionmentioning

confidence: 99%

Design of Broadband Compact Canonical Triple-Sleeve Antenna Operating in UHF Band

Sairam

Vakula

Chakravarthy

2021

J Electromagn Eng Sci

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“…The antenna required a ground plane of 400 mm diameter. Khumanthem et al designed a broadband rectangular sleeve dipole in the 850-2500 MHz range, giving a bandwidth ratio of 2.91 : 1 [11]. The antenna used a rectangular sleeve on a dipole to enhance impedance bandwidth of dipole antenna.…”

Section: Introductionmentioning

confidence: 99%

Design of Broadband Compact Canonical Tetra Sleeve Cage Antenna Covering Uhf Band

Sairam¹,

Vakula²,

Chakravarthy³

2019

PIER Letters

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In this paper, design of a novel broadband Canonical Tetra Sleeve Cage Antenna is presented. This antenna is designed using distributed antenna matching techniques. It has canonical shaped antenna elements and coaxial sleeves. The designed antenna operates over a wide frequency range in UHF band with omnidirectional characteristics. The proposed antenna is simulated in CST Microwave Studio, fabricated, evaluated, and the results are presented. The simulated and measurement results are in agreement. It has VSWR < 1.9 : 1 in frequency bands 270-330 MHz and 930-1670 MHz. The maximum value of VSWR in 250-1850 MHz is 3.3 : 1. The measured gain of the antenna varies from 0.6 to 5.5 dBi in the frequency range of 250 MHz to 1850 MHz. The implementation of distributed matching techniques by using canonical shaped antenna elements and tetra sleeves results in reduction of the length of the antenna by 59.86% compared to the length of a half wave dipole antenna designed at the lowest frequency. The proposed antenna finds applications in defence and wireless communication systems as a transceiver antenna.

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“…The return loss and radiation patterns of the antenna are presented, but gain of the antenna is not mentioned. A comparison of simulated and measured results is done for broadband rectangular sleeve dipole in 850-2500 MHz [14]. Tao Jian et al designed a multiple sleeve dipole in 0.8-2.5 GHz for bandwidth ratio of 3.125: 1 [15].…”

Section: Introductionmentioning

confidence: 99%

Design of Compact Broadband Omni directional Canonical Sleeve Antenna covering 500-3600 MHz

Ram¹,

Vakula²,

Chakravarthy³

2018

AEM

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A novel compact broadband Canonical Sleeve Antenna (CSA) covering 500-3600 MHz with omni directional characteristics is presented in this paper. A new method is employed in which the radiating antenna structure is designed as combination of three different canonical structures: hemispherical, conical and cylindrical elements. To accomplish the broad bandwidth with compact size, dipole antenna is designed by using cylindrical sleeve over the hemispherical dipole with conical extensions and cylindrical attachments. Performance characteristics of CSA is simulated and compared with BiConical Antenna (BCA) and other antenna configurations and found to be best antenna configuration with compact form factor. The antenna has height of 111.43 mm and diameter of 116.66 mm. Simulation studies are carried out using CST Microwave Studio. The simulated results are validated by fabricating CSA and evaluating its performance metrics. CSA has 7.2:1 bandwidth with measured VSWR <2.7:1 and Gain varies from 0 to 3.6 dBi. The antenna finds use in wireless communication industry, spectrum monitoring and defence applications.

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Design of broadband rectangular sleeve dipole antenna covering 850–2500 MHz

Cited by 5 publications

References 1 publication

Design of Broadband Compact Canonical Triple-Sleeve Antenna Operating in UHF Band

Design of Broadband Compact Canonical Triple-Sleeve Antenna Operating in UHF Band

Design of Broadband Compact Canonical Tetra Sleeve Cage Antenna Covering Uhf Band

Design of Compact Broadband Omni directional Canonical Sleeve Antenna covering 500-3600 MHz

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