Design of triple band printed dipole antenna for indoor small cell base station in lte systems

Iswandi, Iswandi; Jaya, Albert Kristian Danan; Rahayu, Eny Sukani

doi:10.1109/icitisee.2017.8285496

Cited by 2 publications

(3 citation statements)

References 5 publications

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“…The discussed works [6]- [10] are arrays that achieved good omnidirectionality in horizontal polarization but may have a large size when considering the frequency of 698 MHz. Dipoles in [11]- [13] represent different types of dipole may have deep null at azimuth plane when placed horizontally as expected. None of this work considers pigtail application and the design have not considered the cable effect that may have a higher discrepancy of the radiation pattern.…”

Section: Fabrication and Measurementsupporting

confidence: 56%

“…The deep nulls have been a concern for the telecommunication operator due to the higher risk of unstable connectivity or blind spots at locations covered by the nulls. The reported works for other wideband or multiband single element antennas such as asymmetrical dipole of circular shape [11], elliptical monopole on trapezoid ground plane [12] and multiple folded radiating elements with multiband [13] are only focused on the bandwidth enhancement and its omnidirectionality for vertical polarization. There is not much attention was given on improving the deep nulls of the radiation pattern in the azimuth plane for ultralow profile antenna when it is horizontally polarized.…”

Section: Introductionmentioning

confidence: 99%

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Azimuth Null-Reduced Radiation Pattern, Ultralow Profile, Dual-Wideband and Low Passive Intermodulation Ceiling Mount Antenna for Long Term Evolution Application

Ng¹,

Islam

Alevy

et al. 2019

IEEE Access

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An ultralow profile, dual-wideband and low passive intermodulation (PIM) in-building ceilingmount antenna for long term evolution (LTE) distributed antenna system (DAS) application is presented. The proposed antenna was designed based on asymmetrical dipole concept having a ground plane with an inclined feeding edge to achieve wideband characteristic and reduced null radiation pattern in the azimuth plane when oriented horizontally. Various dipole and monopole design approaches are presented to give an insight into the typical elevation dipole-liked radiation pattern in the azimuth plane when oriented horizontally to achieve ultralow profile feature. The proposed antenna improves from a simple rectangular monopole to a newly innovated design with off-center feeding location and radiating elements by implementing new design features, e.g. having variation between edges of the radiator and ground plane, slots within monopole radiator and ground plane and inclination of the feeding edge of the ground plane. These additional features enable the proposed design to have a good compromise between the azimuth plane radiation pattern and impedance matching. A production-quality prototype was fabricated to ensure the best PIM performance is achievable. The performance of the prototype was measured. The antenna offers dual-wideband characteristic covering most of the LTE frequency ranges of 698-960MHz and 1350-3800MHz. The passive intermodulation levels that measured for both 700MHz and 1920MHz bands are better than-150 dBc at carrier input of 2 × 20 Watts. INDEX TERMS Broadband antennas, dipole antennas, antenna radiation patterns.

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Section: Fabrication and Measurementsupporting

confidence: 56%

Section: Introductionmentioning

confidence: 99%

Azimuth Null-Reduced Radiation Pattern, Ultralow Profile, Dual-Wideband and Low Passive Intermodulation Ceiling Mount Antenna for Long Term Evolution Application

Ng¹,

Islam

Alevy

et al. 2019

IEEE Access

View full text Add to dashboard Cite

show abstract

“…Therefore, a modification to match with bandwidth and frequency allocation is still required in further investigation. This paper is proposed the bandwidth enhancement of printed dipole antenna with triple band at 900, 1,800, and 2,300 MHz frequencies band [7], [8]. The enhancement was carried out by adjusting the length and width of radiating element to match with the LTE frequency allocation in Indonesia.…”

Section: Introductionmentioning

confidence: 99%

Bandwidth Upgrade in Printed Dipole Antennas Design for LTE Base Station

Prasetyo

Iswandi

Rahayu

2019

IJITEE

Self Cite

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In this research, the design of triple band printed dipole antenna is modified to enhance the antenna bandwidth and adjust its operating frequency range into the LTE allocated frequency band in Indonesia. The radiating elements of antenna are geometrically modified to adjust the bandwidth and resonant frequency range. The LTE frequency bands for Indonesia are taken as the reference frequencies. The design is initially assessed by using numerical simulation, then fabricated and empirically evaluated. The results shows that the proposed antenna can performs 81% in 900 MHz, 79% in 1,800 MHz, and 92% in 2,300 MHz which much better than previous reference design. The resonant frequency range of antenna also more compatible to allocated frequency bands.

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Design of triple band printed dipole antenna for indoor small cell base station in lte systems

Cited by 2 publications

References 5 publications

Azimuth Null-Reduced Radiation Pattern, Ultralow Profile, Dual-Wideband and Low Passive Intermodulation Ceiling Mount Antenna for Long Term Evolution Application

Azimuth Null-Reduced Radiation Pattern, Ultralow Profile, Dual-Wideband and Low Passive Intermodulation Ceiling Mount Antenna for Long Term Evolution Application

Bandwidth Upgrade in Printed Dipole Antennas Design for LTE Base Station

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