Wideband Beam Steering Antenna Array of Printed Cavity-Backed Elements With Integrated EBG Structure

Vilenskiy, Artem; Litun, Vladimir; Lyulyukin, Konstantin

doi:10.1109/lawp.2018.2888487

Cited by 15 publications

(7 citation statements)

References 14 publications

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“…Furthermore, the TX elements E-plane decoupling would result in the beam-steering improvement that is critical at higher frequencies. The cavity-backed patch resonators decoupling can be effectively achieved by employing the planar EBG structures [47].…”

Section: Experimental Study Of the Full 8 × 8 Array Prototype Andmentioning

confidence: 99%

Reconfigurable Transmitarray With Near-Field Coupling to Gap Waveguide Array Antenna for Efficient 2-D Beam Steering

Vilenskiy

Makurin

Lee

et al. 2020

IEEE Trans. Antennas Propagat.

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A novel array antenna architecture is proposed that can enable 2D (full-space) radiation pattern control and efficient beam steering. This solution is based on a fixed-beam gap waveguide (GWG) array antenna and a reconfigurable transmitarray (TA) that are coupled in the radiative near field. An equivalent two-port network model of the coupling mechanism is presented and validated numerically. The desired TA reconfiguration capability is realized by an 8×8 array of cavity-backed patch resonator elements, where two AlGaAs PIN-diodes are integrated inside each element providing a 1-bit phase shift. The TA is implemented in an 8-layer PCB, which includes radiating elements, fixed phase-shifting inner-stripline sections, impedance matching and biasing circuitry. The combined antenna design is low-profile ( 1.7 wavelength) owing to the small separation between two arrays ( 0.5 wavelength), as opposed to conventional TAs illuminated by a focal source. The design procedure of the proposed architecture is outlined, and the measured and simulated results are shown to be in good agreement. These results demonstrate 23.5-25.2 GHz-10-dB impedance bandwidth and 23.3-25.3 GHz 3-dB gain bandwidth, a beam-steering range of ±30° and ±40° in the E-and the H-plane with the gain peak of 17.5 dBi, scan loss ≤ 3.5 dB and TA unit cell insertion loss ≤ 1.8 dB.

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Section: Experimental Study Of the Full 8 × 8 Array Prototype Andmentioning

confidence: 99%

Reconfigurable Transmitarray With Near-Field Coupling to Gap Waveguide Array Antenna for Efficient 2-D Beam Steering

Vilenskiy

Makurin

Lee

et al. 2020

IEEE Trans. Antennas Propagat.

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“…While increasing the distance between elements can mitigate these effects, it must be noted that beyond a certain distance, undesired grating lobes may appear, particularly for thick substrates. To address this challenge, various techniques have been proposed, including wide-angle impedance matching (WAIM) surfaces [9], metasurfaces [10][11][12], modes [13], metal walls [14], SIW cavities [15,16], reconfigurable technology [17], decoupling networks [18], cavity backing [19], and shorting posts [20]. However, most of these solutions suffer drawbacks such as increased profile height [9][10][11][12], [14], an asymmetric scanning pattern [16], design complexity [13,18], and additional cost [17], making them unsuitable for some applications.…”

Section: Introductionmentioning

confidence: 99%

“…To address this challenge, various techniques have been proposed, including wide-angle impedance matching (WAIM) surfaces [9], metasurfaces [10][11][12], modes [13], metal walls [14], SIW cavities [15,16], reconfigurable technology [17], decoupling networks [18], cavity backing [19], and shorting posts [20]. However, most of these solutions suffer drawbacks such as increased profile height [9][10][11][12], [14], an asymmetric scanning pattern [16], design complexity [13,18], and additional cost [17], making them unsuitable for some applications. Therefore, we should take into account ways of simplifying design, reducing costs, and suppressing coupling in practical application design.…”

Section: Introductionmentioning

confidence: 99%

Improving Scanning Performance of Patch Phased Array Antenna by Using a Modified SIW Cavity and Sequential Rotation Technique

Liu,

Guan,

et al. 2024

Electronics

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A novel patch phased array antenna with improved scanning performance is presented in this paper. The active element pattern is changed as desired through a modified SIW cavity, resulting in an extension of the phased array’s 3 dB scanning range. Furthermore, sequential rotation is used to reduce the cross-polarization level of the array, which also improves the scanning gain at ±45°. Without altering the element size or profile, the array has the merits of low cost, low complexity, and a simple feed structure. The presented phased array antenna (PAA) exhibits a gain fluctuation of less than 2.2 dB when steering to 45°. Furthermore, the cross-polarization levels are below −68.1 dB when scanning to 45° in a E-/H-plane over the whole working band. To validate the proposed design, a prototype of a 24 × 16 active PAA is designed, fabricated, and measured. A good agreement between the simulated and measured results is achieved, Thus, this paper offers a viable solution to enhance the scanning performance of a PAA with fixed interelement spacing.

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“…In this regard, MMs are strong candidates to realize 5G antennas of required characteristics. In the literature, various approaches have been proposed for manipulating the antenna radiation characteristics, such as the electrical [32], [33], optical [34], [35], and mechanical methods [36], [37], integrated lens antennas [38], [39], and using the phased array antenna-based phase shifters [40], [41], the traveling wave antennas [42], [43], the beam-forming network (BFN) like the butler matrix [44], [45], and artificial materials, including Frequency Selective Surface (FSS) [46]− [48], Metasurface [49]− [51], Artificial Magnetic Conductor (AMC) [52], [53], Electromagnetic Band-Gap (EBG) [54]− [56], and MMs [57], [58].…”

Section: Introductionmentioning

confidence: 99%

Overview of Metamaterials-Integrated Antennas for Beam Manipulation Applications: The Two Decades of Progress

Esmail

Koziel

Golunski³

et al. 2022

IEEE Access

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Metamaterials (MMs) are synthetic composite structures with superior properties not found in naturally occurring materials. MMs have gained massive attention over the last two decades because of their extraordinary properties, such as negative permittivity and permeability. These materials enable many applications in communication subsystems, especially in the field of antenna design, to enhance gain, bandwidth, and efficiency, reduce the size, and deflect the radiation pattern. The demand for beam-deflection antennas is significant in modern wireless communication research studies due to their importance in enhancing service quality, system security, avoiding interference, and economizing power. The MM structures are usually included in the vicinity of the radiating element or incorporated in the antenna substrate for controlling the radiation pattern. This review study provides an introduction to MMs, focusing on their electromagnetic properties, classification, and design approaches. Furthermore, a detailed study of using the MMs to manipulate the radiation is carried out, where different properties such as the positive/negative refractive index, epsilon-near-zero (ENZ), and mu near-zero (MNZ) are employed to achieve a beamdeflection antenna. Reconfigurable MMs are also loaded to the antenna to achieve multi-directional beam deflection with negligible effect on the antenna's physical size. Moreover, the gradient-index (GRIN) based on MMs is used to obtain high deflection angles with minor effects on other antenna properties.INDEX TERMS, Beam deflection, gradient-index (GRIN), metamaterials (MMs), reconfigurable MMs.

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Wideband Beam Steering Antenna Array of Printed Cavity-Backed Elements With Integrated EBG Structure

Cited by 15 publications

References 14 publications

Reconfigurable Transmitarray With Near-Field Coupling to Gap Waveguide Array Antenna for Efficient 2-D Beam Steering

Reconfigurable Transmitarray With Near-Field Coupling to Gap Waveguide Array Antenna for Efficient 2-D Beam Steering

Improving Scanning Performance of Patch Phased Array Antenna by Using a Modified SIW Cavity and Sequential Rotation Technique

Overview of Metamaterials-Integrated Antennas for Beam Manipulation Applications: The Two Decades of Progress

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