Planar-type sectored antenna based on slot Yagi–Uda array

Simba, Ally Y.; Yamamoto, Masahito; Nojima, Toshio; Itoh, Kiyohiko

doi:10.1049/ip-map:20045076

Cited by 19 publications

(10 citation statements)

References 7 publications

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“…Multiple types of antennas have been adopted to realise endfire radiation on a large conducting plane, such as log-periodic antennas [1][2][3], surface wave antennas [4,5], horn antennas [6,7], Yagi antennas [8][9][10][11][12][13][14][15], and leaky-wave antennas [16][17][18][19]. However, for the antennas in [1][2][3][4][5][6][7][8][9][10][11][12][13][14], the lengths of radiating apertures are too short, which results in a low endfire gain. Moreover, the antennas in [1][2][3][4][5] have the problem of non-uniform energy distribution on the radiating aperture, because only part of the radiating aperture is used at a single frequency point.…”

Section: Introductionmentioning

confidence: 99%

“…The phase constants are not suitable for the endfire radiation in the antennas [6,7], which leads to a sloping-upwards main-beam direction. For the Yagi antennas in [8][9][10][11][12][13][14][15], since the director element couples less energy from the space when it is far away from the driven element, the increase of the director element has a weaker influence on the endfire gain.…”

Section: Introductionmentioning

confidence: 99%

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Half‐mode dielectric waveguide antenna fed by a micro‐strip line with air media for endfire radiation

Hou

Zhang

et al. 2019

IET Microwaves, Antennas & Propagation

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A half‐mode dielectric waveguide antenna fed by a micro‐strip line with air media is presented. The proposed antenna consists of two dielectric cuboids and an air‐substrate micro‐strip line. Due to similar modal field configurations, the dielectric cuboids are excited effectively by the micro‐strip line, and they work as two half‐mode waveguide antennas working on the TM0 mode. With the length of 6.5 wavelength at the centre frequency of 5 GHz, a measured endfire gain of 12.2 dBi is achieved. The measured 1 and 3‐dB gain bandwidths could reach 17 and 46%, respectively. Good matching is obtained over the entire operating band from 3.5 to 6.5 GHz. Compared with the antennas mounted on a large conducting plane, the proposed antenna has the advantages of a high endfire gain, a wide endfire gain bandwidth, and a stable endfire radiation pattern.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Half‐mode dielectric waveguide antenna fed by a micro‐strip line with air media for endfire radiation

Hou

Zhang

et al. 2019

IET Microwaves, Antennas & Propagation

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“…Monopole and slot Yagi-Uda arrays achieved high gain more than 10 dBi in [10]- [11]. A 4-sector Vivaldi antenna was designed to achieve a 50% bandwidth and a 6 dBi gain in [12].…”

Section: Introductionmentioning

confidence: 99%

A Four-Element Array of Wideband Low-Profile H-Plane Horns

Yang

Shen

et al. 2015

IEEE Trans. Veh. Technol.

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A wideband wide-coverage H-plane horn array with vertical polarization is proposed. Due to its light weight and low profile, the designed array is suitable for applications in spectrum monitoring systems on moving platforms. The switched-beam symmetrical array consists of four identical short H-plane horns. Pattern deterioration occurring in high frequency range is solved by inserting two pins in each horn. The measured impedance bandwidth is almost 100% for VSWR<2 owing to its fed structure with a thick-cylinder-loaded probe. The measured azimuth-plane beamwidth is about 90° over the entire frequency range from 860 MHz to 2500 MHz. Moreover, the measured results with the corresponding simulated ones are presented and discussed in this paper.Index Terms-H-plane horn, spectrum monitoring system, vehicular application, wide-band, wide-coverage. 0018-9545 (c)

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“…A well‐known example is the Yagi‐Uda array, a linear array of parallel dipoles, only one of which is connected to the feed line. Although most commonly seen as an array of metal rods, the Yagi‐Uda design can be implemented on a printed circuit board as either strips or slots , and can be used for the individual elements of a planar array . A planar array of nanoscale Yagi‐Uda elements has been designed for optical frequencies with a view to its connection to photonic circuits .…”

Section: Introductionmentioning

confidence: 99%

Measured characteristics of a planar array of parasitic elements fed by one active element

Salas-Sánchez

Fondevila-Gómez

Rodríguez‐González

et al. 2015

Micro & Optical Tech Letters

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An antenna design based on the use of an active dipole placed above a ground plane with an array of parasitic dipoles is presented. The presence of the parasitic dipoles increases the effective antenna size and significantly improves directivity over that of an isolated dipole in front of a ground plane. In addition, the use of just one active element makes for a very simple feed network that reduces the complexity of the antenna. As an application of this technique, a planar array of 48 parasitic dipoles above a ground plane, fed by a single active dipole at 5 GHz, was designed to afford a pencil beam pattern of moderate gain and bandwidth. Measurements agree well with theory. With a protective radome in place, directivity and gain were, respectively, 15.30 and 14.78 dB, the sidelobe level −6.15 dB, and the bandwidth 12.7% for S11 < −10 dB and 3.1% for gain loss <3 dB. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2807–2809, 2015

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Planar-type sectored antenna based on slot Yagi–Uda array

Cited by 19 publications

References 7 publications

Half‐mode dielectric waveguide antenna fed by a micro‐strip line with air media for endfire radiation

Half‐mode dielectric waveguide antenna fed by a micro‐strip line with air media for endfire radiation

A Four-Element Array of Wideband Low-Profile H-Plane Horns

Measured characteristics of a planar array of parasitic elements fed by one active element

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