Antenna Arrays and Automotive Applications

Rabinovich, Victor; Alexandrov, Nikolai

doi:10.1007/978-1-4614-1074-4

Cited by 54 publications

(31 citation statements)

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“…As the electromagnetic waves radiated by the constituent elements combine coherently, affecting the spatial distribution of the transmitted power, antenna arrays represent one of the most manageable and versatile solutions to deal with the synthesis of complex waveforms at the radio frequencies. Furthermore, unlike the majority of other systems involving a single radiator, they are well suited for the simultaneous transmission of several independent beams, each of which can be encoded with a different information content and electronically controlled in direction, thus ensuring a high flexibility for multiplexing [24][25][26]. In the theoretical model that will be developed, the presence of an ideal beamforming network which provides the array excitations is assumed: noise, energy losses and couplings among the antennas will not be considered.…”

Section: Generation Of Vortex Waves Via Phased Antenna Arraysmentioning

confidence: 99%

Symmetry breaking in UCA-based vortex waves

Cagliero

2018

J. Phys. Commun.

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In literature, it is often said that a uniform circular array (UCA) composed of a sufficient number of radiating elements is able to generate a vortex wave with arbitrary topological charge. While providing a very simple and intuitive solution without the need for any synthesis method, the excitation of UCAs by means of a progressive phase shift does not always guarantee that vortex waves are correctly generated, since a major role is played by the symmetry and radiation properties of each individual element which constitutes the array. When the UCAs are employed in vortex communication links, these symmetry properties strongly affect the orthogonality of the channel modes and, therefore, the communication efficiency. In this work, the symmetry breaking associated with the radiation of vortex waves by UCAs and its impact on the mode orthogonality are explored in detail.

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Section: Generation Of Vortex Waves Via Phased Antenna Arraysmentioning

confidence: 99%

Symmetry breaking in UCA-based vortex waves

Cagliero

2018

J. Phys. Commun.

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“…Figure 2 illustrates the topology of the proposed antenna array. A microstrip array is chosen in this work due to its planar structure and ease of integration with other microwave structures in automobile applications [10]. The array is formed on a RT/Duroid 5880 substrate using 16-rectangular and circular radiating elements and is fed by a combination of series and corporate feed network as shown in …”

Section: Design Of the Wire Loaded Csr Unit Cellmentioning

confidence: 99%

Multi-Band Antenna Array Based on Double Negative Metamaterial for Multi Automotive Applications

Alqadami¹,

Jamlos²,

Islam³

et al. 2017

PIER

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Abstract-This paper presents a design of multi-band array antenna based on Double Negative Metamaterial (DNM) unit cells for multi-automotive applications. The antenna consists of 4 × 4 rectangular and circular radiating patches connected in series using microstrip lines and fed by a 50 Ω corporate microstrip line. An array of 4×6 wire loaded complementary spiral resonator (CSR) unit cells is placed on its reverse side to provide miniaturization and multiband features to the proposed design. The reflection coefficient (S 11 ), mutual coupling, effective diversity gain (EDG), envelope correlation coefficient (ECC), and radiation patterns are evaluated for four elements of the proposed antenna placed in four different locations on the car body model. Simulations and measurements indicated that the proposed antenna features a low mutual coupling (< −34 dB), low ECC (< 0.01), high EDG (> 9.995), high efficiency (72%-95%), and low on-car detuning over the desired five bands; 1.99 GHz to 3.03 GHz, 5.15 GHz to 6.369 GHz, 7.67 GHz to 7.99 GHz, 9.91 GHz to 10.23 GHz, and 11.79 GHz to 12.2 GHz. The performance of ECC between four antennas on car body has been investigated in different cases of isotropic, indoor, and outdoor. The metallic effect on antennas performance also has been investigated by evaluating the mutual coupling and transmission coefficient between two antennas served as transmitter and receiver with presence of car body. The results show transmission coefficient of proposed DNM antenna with metallic presence almost identical to free space across desired frequency bands. With all capabilities mentioned the antenna has potential for WiFi/WiMAX, Vehicleto-Vehicle (V2V), transportable earth exploration satellite, military requirement for land vehicles, and earth stations on vessels applications.

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“…The development of 5G telecommunication systems for applications at 60 GHz, for example, has required the identification of suitable materials (with low losses) and the development of new circuit components, such as connectors and laminated materials, as well as circuits, such as filters, frequency selective surfaces (FSSs), and antennas [1][2][3]. Despite the technological challenge, including the study of wave propagation, the development of new circuits with millimeter dimensions, makes possible the reduction of the size of users telecommunication equipment, such as laptops, smartphones, and smart TV sets [4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, Mandelbrot fractal geometries enable the development of multiband and compact microstrip patch antennas, being an excellent alternative for wireless and near millimeterwave applications, such as those in 5G communication systems [1,2], and in the automotive industry [3].…”

Section: Introductionmentioning

confidence: 99%