Wideband and Low-Profile H-Plane Ridged SIW Horn Antenna Mounted on a Large Conducting Plane

Zhao, Yun; Shen, Zhongxiang; Wu, Wen

doi:10.1109/tap.2014.2354420

Cited by 97 publications

(71 citation statements)

References 15 publications

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“…Other typical feeding devices widely used in surface wave antennas are rectangular waveguides and flare horns [12]. Nevertheless, a poor impedance matching will be introduced when the dielectric thickness is very low [13], [14], which may limit these feeding structures for wideband and low-profile applications. Ridged structures are often employed to increase the bandwidth [15]- [17].…”

Section: Introductionmentioning

confidence: 99%

Wideband Flush-Mounted Surface Wave Antenna of Very Low Profile

Chen

Shen

2015

IEEE Trans. Antennas Propagat.

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This paper presents the design of a compact and wideband surface wave antenna that exhibits very low profile and can be flush-mounted on a conformal platform. The proposed antenna comprises a tapered grounded ceramic slab, a unidirectional surface wave launcher, and a tapered impedance transition. The ceramic slab is smoothly tapered to transform the guided surface wave into radiated space wave over a wide frequency range. The surface wave launcher employs a probe-fed parallel plate waveguide with a modified parabolic reflecting wall and a metallic post, which are critical for effectively transforming the cylindrical waves to a unidirectional plane wave within a broad frequency range. Simulated results show that the proposed surface wave antenna achieves a wide operation bandwidth from 6.1 GHz to 18 GHz with a thickness of only 0.12 at the center frequency. Acceptable gain values with stable and quasi end-fire radiation beams are obtained over the entire frequency band. A prototype of the proposed antenna is fabricated and tested. Measured results are in good agreement with simulated ones.Index Terms-Flush-mounted, low-profile, surface wave antenna, surface wave launcher, wideband antenna. 0018-926X (c) He is currently serving as theSecretary of IEEE AP-S. His research interests include design of small and planar antennas for various wireless communication systems, analysis and design of frequency-selective structures and absorbers, hybrid numerical techniques for modeling RF/microwave components and antennas. He has authored or co-authored more than 130 journal papers and presented another 120 conference papers. Zhuozhu Chen (S'13) was born in Hunan province, China. He received the B.Eng. degree and the M.S. degree in electronic engineering from Beijing Institute of Technology, China, in 2010 and 2013, respectively. He is currently working toward the Ph.D. degree in electrical and electronic engineering at Nanyang Technological University, Singapore.His research interests include design of RF/microwave antennas and circuit.

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Section: Introductionmentioning

confidence: 99%

Wideband Flush-Mounted Surface Wave Antenna of Very Low Profile

Chen

Shen

2015

IEEE Trans. Antennas Propagat.

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“…It consists of a wideband ridged SIW power divider and four H-plane horn antennas. The horn antenna element is quite similar to that introduced in [13], which is constructed of a ridged flare part and a dielectric slab extending along the horn aperture with an arc-shaped taper printed on the upper surface. W and L are the width and length of the substrate.…”

Section: Design Of the Wideband And Linear Array Of The H-plane Horn mentioning

confidence: 99%

“…In this letter, a wideband and low-profile array of H-plane horns is proposed based on our previous work [13]. As the aperture size of the horn is decreased to be comparable with one wavelength in the free space to construct a linear array in the H-plane, the impedance matching in the lower frequency range is destroyed.…”

Section: Introductionmentioning

confidence: 99%

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Wideband and Low-Profile Linear Array of H-Plane Horns on a Conducting Ground Plane

Zhao¹,

Wu²

2016

PIER Letters

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Abstract-This paper presents a design of wideband and low-profile linear array of H-plane horn antennas. In order to construct the linear array in H-plane, the aperture size of the horn antenna in the H-plane should be comparable with one wavelength in the free space, which leads to a poor impedance matching especially in the lower frequency range. The approach to the problem is removing the side walls of the flare part of the antennas. The array is fed by a wideband 4-way ridged SIW power divider. The designed array operates from 5.6 GHz to 18 GHz for VSWR 2.5 and exhibits stable radiation beam with a narrow beam-width in H plane over the same frequency rang while retaining the antenna array height of only 4 mm (0.17λ 0 at the center frequency). The designed array is fabricated and tested. It is observed that measured results agree well with simulated ones.

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“…H-plane horn antennas are another promising candidates [9]- [13]. Thin and compact SIW horn antennas have been designed in [9] and [10] with the thickness of larger than 0.08 λL and the bandwidth of narrower than 17%.…”

Section: Introductionmentioning

confidence: 99%

Compact Wideband and Low-Profile Antenna Mountable on Large Metallic Surfaces

Zhang

Pedersen

2017

IEEE Trans. Antennas Propagat.

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This paper proposes a compact wideband and low-profile antenna mountable on large metallic surfaces. Six rows of coupled microstrip resonators with different lengths are printed on a Teflon block. The lengths of the microstrip resonators in different rows are gradually reduced along the end-fire direction. The first four rows of resonators provide four resonances at different frequencies for bandwidth enhancement. The last two rows of resonators are used as two directors to suppress sidelobe levels at high frequencies. A trapezoidal launcher is applied to serve as a reflector and provide one resonance at the lowest frequency. A trapezoid-shaped capacitive-feed (C-fed) strip is utilized and also printed on the Teflon block to globally optimize the wideband impedance matching. The proposed antenna covers a relative bandwidth of 109% for VSWR<2 with a height of 0.044 λL and a volume of only 0.03 λL 3 (λL being the free-space wavelength at the lowest operating frequency). Within the operating band, the realized gain is better than 6.5 dBi and the radiation efficiency is higher than 95%.Index Terms-Low-profile, wideband antenna, end-fire radiation, vertical polarization, large metallic surface, coupled microstrip resonator.

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Wideband and Low-Profile H-Plane Ridged SIW Horn Antenna Mounted on a Large Conducting Plane

Cited by 97 publications

References 15 publications

Wideband Flush-Mounted Surface Wave Antenna of Very Low Profile

Wideband Flush-Mounted Surface Wave Antenna of Very Low Profile

Wideband and Low-Profile Linear Array of H-Plane Horns on a Conducting Ground Plane

Compact Wideband and Low-Profile Antenna Mountable on Large Metallic Surfaces

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