Low-Cost Millimeter-Wave Antenna with Simultaneous Sum and Difference Patterns for 5G Point-to-Point Communications

Tamayo‐Domínguez, Adrián; Fernández-González, José-Manuel; Castañer, Manuel Sierra

doi:10.1109/mcom.2018.1700989

Cited by 26 publications

(13 citation statements)

References 12 publications

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“…For example, monopulse antennas can be designed using parabolic or lens-based configurations, which can become very complicated, expensive, and heavy [1]. Several alternatives have been proposed based on radial-line slotted arrays [19], [20], planar microstrip arrays [21], substrate integrated waveguide technology [22], [23], FPCAs [24], holographic LWAs [25], and gap waveguide technology [26].…”

Section: Introductionmentioning

confidence: 99%

Design of a Polarization-Diverse Planar Leaky-Wave Antenna for Broadside Radiation

et al. 2019

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The design of a K-band radial leaky-wave antenna is presented for polarization diversity applications. The antenna structure is constituted by an annular, radially periodic, and metallic strip grating printed on top of a single-layer grounded dielectric slab. The integrated feeding system is defined by a 2 × 2 array of planar slot sources for cylindrical surface-wave excitation. By the addition of the grating, the surface wave is perturbed and enables cylindrical leaky-wave radiation by means of a fast n = −1 space harmonic, whose behavior is characterized through a full-wave dispersive analysis. By proper phasing and spacing of the four independent TM feeds, positioned close to the center of the annular grating and on the ground plane, we demonstrate the possibility of radiating directive broadside beams offering linear, left-or right-handed circularly polarized radiation, and sum and delta patterns. Thus, we propose an original solution to flexibly control the polarization of a high-gain beam by means of a simple and low-cost feeding system, made by the minimum number of integrated array sources. To accurately assess the antenna features and performance, the role of a zeroth-and first-order cylindrical leaky waves propagating along the antenna aperture is also discussed. The proposed antenna design may be of interest for direction-of-arrival estimation by means of monopulse radars, as well as for a wide class of applications where flexible control of the polarization is desired, such as satellite and terrestrial point-to-point communication systems and earth observation.

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Section: Introductionmentioning

confidence: 99%

Design of a Polarization-Diverse Planar Leaky-Wave Antenna for Broadside Radiation

et al. 2019

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“…Similar circular, semicircular and elliptical lens structures require multiple feeding points to be able to host multiple beams simultaneously. This requires multi-feed excitors like waveguide-based horn antennas [39], groove gap waveguides [85,86] and dipoles [82]. A specialized form of similar feed uses leaky-wave antenna operating at 21.9-23.9 GHz band.…”

Section: Mmwave Radio Signals Have Propagation Characteristics Such Amentioning

confidence: 99%

Beamformer development challenges for 5G and beyond

Abbasi

Fusco

2020

Antennas and Propagation for 5G and Beyond

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Antenna's beamforming technology [1] is vital in the utilization of the microwave and millimeter-wave (mmWave) frequency bands for the fifth-generation (5G) communication technology, and beyond, applications that include the sixth generation (6G), Internet of Things and Industry 4.0 [2,3]. Antenna beamforming can be defined as the ability of an antenna array to steer the maximum radiation toward a prescribed direction, or, conversely, the ability of the antenna array to estimate the direction of arrival (DOA) of an impinging signal. Beamforming is generally achieved by using multiple antennas, spatially colocated to either function as an independent radiator or as a unit cell in larger array arrangements. Recently, the term multiple-input-multiple-output (MIMO) has been used in conjugation with the beamforming technology since it also involves multiple antenna systems, thus linking it to the beamforming technology [4]. When the number of antennas used in the MIMO operation becomes very large, it is generally termed massive MIMO technology [5]. Different beamforming concepts are used for the two frequency spectrum classifications in cellular technology, i.e., sub-6 GHz and mmWave. The majority of beamformer challenges at sub-6 GHz are already resolved, and prototypes are now available [6]; however, there are still major fundamental challenges that engineers face while developing beamformers for use in the mmWave bands, i.e., >28 GHz. Challenges include, but are not limited to, high path loss, power generation, adaption to account for realistic channel estimation, hardware impairments, energy leakage in circuits, high development cost, spatial-temporal channel variations, signal blockages due to the presence of obstacles such as beamformer casing, user body and hand. Also, multiuser MIMO techniques are not easily implementable in mmWave frequencies. In addition to this, beam coordination at transmitter and receiver antenna systems especially in mmWave spectrum is very challenging. In this chapter, we will first classify the beamformers based on the system architecture, operational frequency

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“…On the other hand, SIWs can be considered a good candidate for designing both traveling-wave and standing-wave slotted antenna arrays at millimeter waves, since slots can be readily etched on SIWs, by making use of mature technologies for printed circuits, such as photolithography. Hence, most of the techniques developed in the last years for the synthesis of almost arbitrary aperture field distributions in planar slotted devices, such as for instance radial-line slot-arrays (RLSA) for both antenna [11][12][13][14][15] and focusing [16][17][18][19][20] applications, can be suitably applied also to SIW devices.…”

Section: Introductionmentioning

confidence: 99%

Design and Fabrication of a Sectoral Beam Slotted Antenna in Siw Technology for Surveillance Applications at Millimeter Waves

Pavone¹,

Albani²

2020

PIER

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In this paper, we present the design and fabrication of a sectoral beam slotted antenna in substrate integrated waveguide (SIW) technology able to achieve a high roll-off sectoral pattern in the horizontal plane and a very narrow beam in the vertical plane, as required in surveillance applications in the band 76-77 GHz. The proposed antenna is designed and fabricated in multi-layer PCB technology, which allows to integrate both the corporate feeding network and the radiating aperture in the same planar and lightweight device. To achieve a remarkable roll-off (> 5.5 dB/deg) and a reduced ripple (< 1.5 dB), the antenna has been designed by synthesizing a sinc-shaped (uniform) aperture distribution along x-direction (y-direction). The synthesis and optimization of so tapered aperture distributions is not easy to be found in the literature, especially for planar devices. A prototype of such an antenna has been fabricated with a horizontal half-power beamwidth (HPBW) of 30 • , by embedding both the feeding network and the radiating aperture in three stacked dielectric substrates. Measurements of the prototype show a fair agreement with numerical simulations.

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Low-Cost Millimeter-Wave Antenna with Simultaneous Sum and Difference Patterns for 5G Point-to-Point Communications

Cited by 26 publications

References 12 publications

Design of a Polarization-Diverse Planar Leaky-Wave Antenna for Broadside Radiation

Design of a Polarization-Diverse Planar Leaky-Wave Antenna for Broadside Radiation

Beamformer development challenges for 5G and beyond

Design and Fabrication of a Sectoral Beam Slotted Antenna in Siw Technology for Surveillance Applications at Millimeter Waves

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