Modified Tem Horn Antenna for Broadband Applications

Mallahzadeh, Alireza; Karshenas, F.

doi:10.2528/pier08123106

Cited by 41 publications

(15 citation statements)

References 21 publications

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“…There are varied horns applied for special occasions: singledominant mode conical and rectangular horn [7-11, 24, 25], multimode circular and rectangular horn [12][13][14][15], corrugated horn [11,16], modified box-horn [17,18], half oval horn [19], ridged-loaded UWB horn and modified TEM horn [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Design and Experiments of the Gw High-Power Microwave Feed Horn

Chang¹,

Zhu²,

Liu³

et al. 2010

PIER

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Abstract-Design and optimization of high-power microwave (HPM) feed horn by combining the aperture field with radiation patterns are presented in the paper. The optimized feed horn in C band satisfies relatively uniform aperture field, power capacity higher than 3 GW, symmetric radiation patterns, low sidelobes, and compact length. Cold tests and HPM experiments were conducted to investigate the radiation patterns and power capacity of the horn. The theoretical radiation patterns are consistent with the cold test and HPM experimental results. The power capacity of the compact HPM horn has been demonstrated by HPM experiments to be higher than 3 GW.

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Section: Introductionmentioning

confidence: 99%

Design and Experiments of the Gw High-Power Microwave Feed Horn

Chang¹,

Zhu²,

Liu³

et al. 2010

PIER

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“…A numerical technique solving the hybrid field integral equation (HFIE) by method of moments was developed for electrically large pyramidal horn antennas [30]. Recently, several novel horn antennas of new types were designed and analyzed such as compound box-horn antenna and modified TEM horn antenna [31,32]. The former one possessed the advantages of both the modified box-horn and pyramidal horn antennas whereas the latter one removed fluctuations introduced by conventional TEM horn antenna by carving an arc shape on the antenna's open end.…”

Section: Introductionmentioning

confidence: 99%

A Metamaterial-Based E-Plane Horn Antenna

Hwang¹,

Liu²,

Chin³

2009

PIER

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Abstract-In this paper, we reported an E-plane horn antenna incorporating a metamaterial. Such a metamaterial is made up of metallic cylinders organized in a two-dimensional square lattice. After properly designing the lattice constant and unit cell pattern, we synthesized a medium with the effective refractive index smaller than unity. Therefore, once the waves were excited within the metamaterial, the refractive waves tend to be perpendicular to the interface between the metamaterial and uniform medium. Based on this concept, a 4-way beam splitter was designed to equally distribute the input power into 4 different directions. We then guide each of the power into individual E-plane flared opening to radiate a directional beam pattern in each sector. We have fabricated this antenna and measured its radiation characteristics including the return loss and far-field pattern. The excellent agreement between the measured and simulated results was obtained. Due to the properties of robust, low-loss, and low-cost, this antenna may have promising application in a point-to-multiple-point downlink system.

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“…An important application for horn antennas is the feed for reflectors including near-field or far-field focused, single reflected or multi-reflected and other constructions [1][2][3][4][5][6]. In this application and many other applications such as space-fed arrays and lens arrays, beam efficiency is very important since it has influence on the spillover loss.…”

Section: Introductionmentioning

confidence: 99%

Rectangular Horn Antennas With Limiting Plates for Symmetrical Pattern and Beam Efficiency Improvement

Fartookzadeh¹,

Ghaffarian²,

Zamani³

et al. 2016

PIER C

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Abstract-This paper proposes a horn antenna with limiting plates inside to produce symmetrical pattern in E-plane and H-plane. Sidelobes of the antenna are reduced using the limiting plates, and therefore, the beam efficiency of the antenna is improved up to 90% without changing the antenna dimensions. The antenna dimensions are adjusted to achieve the best beam efficiency. Simultaneously, the reflection coefficient is maintained lower than −15 dB. In addition, it is indicated that this antenna has wide bandwidths without reducing the efficiency and performance of the antenna. Finally, the reflection coefficient is improved to −20 dB without degradation of the antenna performance.

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Modified Tem Horn Antenna for Broadband Applications

Cited by 41 publications

References 21 publications

Design and Experiments of the Gw High-Power Microwave Feed Horn

Design and Experiments of the Gw High-Power Microwave Feed Horn

A Metamaterial-Based E-Plane Horn Antenna

Rectangular Horn Antennas With Limiting Plates for Symmetrical Pattern and Beam Efficiency Improvement

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