A Broadband Omnidirectional Antenna Array for Base Station

Wang, Bo; Zhang, Fu‐Shun; Jiang, Liu; Li, Qichang; Ren, Jian

doi:10.2528/pierc14082703

Cited by 7 publications

(4 citation statements)

References 12 publications

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“…There are three patches excited individually to cover the industrial, scientific and medical radio (ISM) band and UWB frequency of operation for the entire cellular bands. 15 Compared to the planar antennas, this 3D antenna maintains a high gain all over the frequency of operation. In Yu et al, 16 a wideband horizontally polarized antenna is demonstrated using closely coupled array of dipole.…”

Section: Introductionmentioning

confidence: 99%

“…A monopole antenna three‐layered structure is developed using the concept of a discone antenna. There are three patches excited individually to cover the industrial, scientific and medical radio (ISM) band and UWB frequency of operation for the entire cellular bands 15 . Compared to the planar antennas, this 3D antenna maintains a high gain all over the frequency of operation.…”

Section: Introductionmentioning

confidence: 99%

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High‐gain horizontally polarised omnidirectional planar antenna using parasitic directors for wireless sensor networks

Kumar,

Suseela,

Daiya

et al. 2024

Int J Communication

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SummaryWireless sensor networks (WSNs) are used to monitor the real‐time parameters of remote/restricted access areas of automation industries which are tightly sealed. In such scenarios, the main challenge is signal transmission in sealed environments. An omnidirectional radiation pattern is preferred as a control link for receiving packets or periodic updates from its neighbouring nodes. However, the gain and directivity of omnidirectional antenna should be sufficient enough to transfer the data to the collecting node. This paper proposes a high‐gain horizontally polarised omnidirectional radiation pattern planar antenna resonating at the 2.45 GHz. The developed microstrip planar antenna offers a very simple and compact structure printed on either side of FR4 epoxy substrate (ε = 4.4) suitable for WSN nodes. A printed dipole director is arranged orthogonally and offers horizontal polarisation. A pair of parasitic elements is placed parallel to dipole radiators to improve the total gain of the antenna. A parallel pair of parasitic elements is placed on an inclination of 45° in antenna design plane for uniform distribution of surface current to achieve the omnidirectional antenna. The symmetrical structure of the radiating element on either side of the substrate avoids the design of the traditional balun structure to reduce the complexity of feeding network. The developed antenna is simulated, fabricated, measured and tested using WSN. The measured radiation (directivity = 3.9 dBi) is maximum at Ⴔ = 0° and Ⴔ = 90°. The frequency response of the antenna indicates a −10 dB fractional bandwidth of 380 MHz (2.24 GHz–2.62 GHz). The measured far‐field response shows a stable average gain of 3.9 dBi over the ISM band. The real‐time received signal strength indicator (RSSI) of the antenna installed in the sensor node observed a success rate of 79.46% with a transmission error of 10%. The observed response of an antenna makes it well‐suitable for WSN in industrial automation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High‐gain horizontally polarised omnidirectional planar antenna using parasitic directors for wireless sensor networks

Kumar,

Suseela,

Daiya

et al. 2024

Int J Communication

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“…Nevertheless, these methods have a weakness of narrow bandwidths (about 6%). The concept of rotating electric field method is applied to conventional slot dipoles in [6] and an antenna array in [7], but their relative bandwidths are 15.4% and 39.4%, respectively. In addition, some new techniques are employed in [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Bandwidth of a Horizontally Polarized Omnidirectional Printed Antenna Array Based on Dual-Dipole Structure

Yang¹,

Zhang²,

Hong³

et al. 2017

PIER C

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Abstract-In this paper, a horizontally polarized (HP) omnidirectional antenna array with a broadband characteristic is presented. The proposed antenna consists of a circular array based on four planar arc dual-dipole structures, a wideband 1-to-4 feeding network with baluns, four reflectors and twelve directors. The arc dual-dipoles with four etched slots are introduced to obtain the broadband characteristic. By using twelve directors in front of the dipoles, the gain variation in the horizontal plane is improved. In addition, the reflector elements are able to improve the gain for the middle frequency band. With the concept, a prototype antenna with an overall size of 0.is the free-space wavelength at the lowest frequency) is fabricated and measured. The designed antenna exhibits a relative impedance bandwidth of 98.3% (1.245-3.652 GHz) for |S 11 | < −10 dB. The HP omnidirectional patterns provide a gain variation less than 3.0 dB over the frequency band 1.245-3.519 GHz (95.5%). Within the impedance bandwidth, the cross-polarization level is lower than −20 dB in the horizontal plane.

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“…The microstrip antennas are good candidates for these applications due to their small size, easy installation and low cost. For WLAN applications and WiMAX systems, several design methods for omnidirectional antennas have been developed in [1][2][3][4][5]. The collinear dipole array (COA) is a well-known high-gain dipole antenna introduced in [6] based on Franklin idea.…”

Section: Introductionmentioning

confidence: 99%

Three Optimized Omnidirectional Microstrip Antennas (Oma) for Wlan Applications

Esmaeli¹,

Khalaj‐Amirhosseini²,

Sedighy³

2015

PIER Letters

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Abstract-In this paper, three omnidirectional microstrip array antennas are optimized, fabricated and measured. The proposed planar antennas are composed from series of microstrip line sections with inverted top and bottom conductors at each section. The antenna design parameters are optimized to design three different antennas: wide bandwidth, high-gain and dual-band antennas. In the wideband antenna, a good impedance matching is obtained for relative bandwidth of 31% that covers the frequency range of WLAN. The dual-band omnidirectional antenna operates at 2.45 GHz and 5.25 GHz with gains of 6.69 dBi and 7.71 dBi, respectively. Also, the optimized high-gain antenna achieves 9.3 dBi gain. The three optimized antennas are fabricated and tested. The measurement results show a very good agreement with the simulation ones. The optimization results verify the ability and capability of the antenna to achieve the desired specifications.

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A Broadband Omnidirectional Antenna Array for Base Station

Cited by 7 publications

References 12 publications

High‐gain horizontally polarised omnidirectional planar antenna using parasitic directors for wireless sensor networks

High‐gain horizontally polarised omnidirectional planar antenna using parasitic directors for wireless sensor networks

Enhanced Bandwidth of a Horizontally Polarized Omnidirectional Printed Antenna Array Based on Dual-Dipole Structure

Three Optimized Omnidirectional Microstrip Antennas (Oma) for Wlan Applications

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