Series-Fed Microstrip Antenna Arrays and Their Application to Omni-Directional Antennas

Živanović, Bojana; Weller, Thomas M.; Costas, C.

doi:10.1109/tap.2012.2207317

Cited by 17 publications

(4 citation statements)

References 10 publications

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“…In this case the gain and impedance bandwidth are 15.7 dBi and 300 MHz, respectively. The series-fed microstrip antenna array in [14] has a gain of 6 dBi and impedance bandwidth of 750 MHz. In [15], the gain and bandwidth of a multi-layer 2×2 square patch antenna are improved by implementing a perforated superstrate.…”

Section: Introductionmentioning

confidence: 99%

Microstrip patch antenna array with cosecant-squared radiation pattern profile

Kaboutari

Zabihi

Virdee

et al. 2019

AEU - International Journal of Electronics and Communications

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In this paper the radiation pattern on either side of the main beam, which is created by a standard microstrip patch antenna, is configured to correspond to a cosecant-squared curve. The 8×2 antenna array comprises eight pairs of radiating elements that are arranged in a symmetrical structure and excited through a single common feedline. Interaction of the fields generated by each pair of elements contribute towards the overall radiation characteristics. The proposed array is shown to exhibit an impedance bandwidth of 1.93 GHz from 9.97 to 11.90 GHz for S11 ≤-10 dB with a peak gain of 14.95 dBi. The antenna's radiation pattern follows a cosecant-squared curve over an angular range of ±60.91°. The compact antenna array has dimensions of 106×34×0.813 mm 3. These characteristics qualify the antenna for radar applications at the X-band frequency.

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Section: Introductionmentioning

confidence: 99%

Microstrip patch antenna array with cosecant-squared radiation pattern profile

Kaboutari

Zabihi

Virdee

et al. 2019

AEU - International Journal of Electronics and Communications

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“…Vertically polarized omnidirectional antennas with high performance are paid more and more attention with the rapid development of modern wireless communications [1][2][3][4]. A vertically polarized omnidirectional antenna with the advantages of wide band, high gain, stable omnidirectional radiation pattern and being feasible and convenient to integrate with the feeding network is more likely widely adopted in a variety of services.…”

Section: Introductionmentioning

confidence: 99%

A Wideband Medium-Gain Vertically Polarized Omnidirectional Antenna Array

Yang¹

2018

PIER M

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A medium-gain vertically polarized omnidirectional antenna array (VPOA) with wide bandwidth is proposed in this paper. Initially, a conventional printed dipole antenna with integrated balun (IB) is introduced to use as the wideband element. Then, four antenna elements are alternately arranged in the vertical direction to achieve high gain. Moreover, the four elements are excited by a shunt-fed feeding network which is utilized to provide uniform amplitude and phase for the elements. The feeding network has a common ground with the balun, and it can be easily integrated with the IB. Furthermore, two metallic cylinders placed in the normal direction of the substrate are used as two reflectors to improve the gain variation in the horizontal plane. In order to validate the design method, a prototype is fabricated and measured. The measured results indicate that the proposed antenna has an impedance bandwidth of 56% (1.12-2 GHz) for VSWR 2 and a simple structure with lateral size of 0.45λ 0 (λ 0 is the free-space wavelength at center frequency). In addition, stable omnidirectional radiation patterns are obtained with gains around 6.5 dB and the gain variations in the horizontal plane less than 2 dB across the operating band.

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“…But the segmented array is long along the axis direction due to the fact that different radiating elements are used for different bands. The cylindrical arrangement of multiband radiators is usually used to generate omnidirectional coverage in the horizontal plane [8]- [9], which results in a large cross sectional dimension not suited for the slender configuration.…”

Section: Introductionmentioning

confidence: 99%

Dual-Band Stacked Annular Slot/Patch Antenna for Omnidirectional Radiation

Shi

Zhang

2016

Antennas Wirel. Propag. Lett.

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This letter presents the design of a new omnidirectional antenna, which is composed of annular slot and annular patch stacked together for dual band operation at 2.5 GHz and 3.5 GHz. The influence of the antenna parameters on the dual band operation is given with simulations. A prototype of the proposed antenna was manufactured with FR4 substrates for the purpose of demonstration. The measured reflection coefficient exhibits dual band operation at 2.32 GHz with fractional bandwidth of 19.3%, and at 3.59 GHz with fractional bandwidth of 18.6%. The stable measured omnidirectional radiation patterns can be obtained at both frequencies. The agreement between the measured and simulated patterns can be observed from the experimental results.

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Series-Fed Microstrip Antenna Arrays and Their Application to Omni-Directional Antennas

Cited by 17 publications

References 10 publications

Microstrip patch antenna array with cosecant-squared radiation pattern profile

Microstrip patch antenna array with cosecant-squared radiation pattern profile

A Wideband Medium-Gain Vertically Polarized Omnidirectional Antenna Array

Dual-Band Stacked Annular Slot/Patch Antenna for Omnidirectional Radiation

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