Smart Leaky‐Wave Antennas for Iridescent<scp>IoT</scp>Wireless Networks

Gómez‐Tornero, José Luis

doi:10.1002/9781119813910.ch4

Cited by 31 publications

(5 citation statements)

References 174 publications

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“…2. Solving the SLAE using Gaussian elimination consumes time proportional to O(N) 3 , where N is the order of the SLAE, and the required memory is O(N) 2 . Consequently, the antenna mass decreased by a factor of N/N S =1.71, the required memory reduced by (N/N S ) 2 =2.92, and the time for solving the SLAE decreased by (N/N S ) 3 =5 times.…”

Section: A Horn Antennamentioning

confidence: 99%

“…Many studies have been conducted on antenna modelling and manufacturing, as antennas are an essential component of any radio electronic device [1]. Thanks to advancements in computational methods, researchers have proposed a wide range of innovative solutions for antenna modelling, particularly, for smart [2,3], wearable [4,5], and satellite antennas [6,7]. These solutions have helped achieve the desirable final product that the market demands.…”

Section: Introductionmentioning

confidence: 99%

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Modelling and Designing Wire-Grid Sparse Antennas Using MoM-based Approaches for Enhanced Performance and Reduced Cost

Alhaj Hasan,

Nguyen,

Gazizov

2023

Mikrotalasna revija = Microwave Review

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In today's competitive market, it is crucial to continually improve antenna manufacturing technologies to keep up with the increasing demands. Researchers can utilize numerical methods to create novel and highly effective antenna designs, pushing the boundaries of antenna engineering. This paper considers two approaches to efficiently model and design sparse wire-grid antennas. The main idea is to create an optimal wire structure that closely approximates the current paths in the antenna while maintaining its integrity with minimal mass. This structure can be used in further simulations with controlled characteristic accuracy and less resources. In this study, these approaches were applied to modelling horn, conical horn, and reflector antennas. The verification was conducted by comparing their results with those obtained from numerical and experimental tests for the same antenna designs. The findings demonstrated good agreement between the results. In addition, we investigated the impact of using these approaches on the antenna characteristics and found that they can enhance the performance of certain characteristics while reducing costs in manufacturing and modelling.

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Section: A Horn Antennamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modelling and Designing Wire-Grid Sparse Antennas Using MoM-based Approaches for Enhanced Performance and Reduced Cost

Alhaj Hasan,

Nguyen,

Gazizov

2023

Mikrotalasna revija = Microwave Review

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“…This last feature is of special interest for modern multibeam and reconfigurable antennas operating in 5G and future 6G wireless networks. [3,4] In the present paper, the efficient synthesis of broadbeam radiation patterns using LWAs is addressed. This type of confined patterns cover a wide angular region with stable gain and high rejection out of this prescribed zone, acting as an angular filter that allows robust reception of the radio signal in the prescribed angular region while rejecting the signals received out of this angular zone.…”

Section: Introductionmentioning

confidence: 99%

“…This last feature is of special interest for modern multibeam and reconfigurable antennas operating in 5G and future 6G wireless networks. [ 3,4 ]…”

Section: Introductionmentioning

confidence: 99%

Design of Wide‐Beam Leaky‐Wave Antenna Arrays Based on the Bilinear Transformation of IIR Digital Filters and the Z Transform

Verdú‐Monedero,

Gómez‐Tornero,

Morales‐Sánchez

2023

Advcd Theory and Sims

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In the pioneering work, the radiation diagrams of leaky wave antenna arrays can achieve attenuation nulls and gains at specific angles by manually placing the zeros and the poles in the Z domain of the corresponding discrete linear time‐invariant (LTI) system. This handcrafted design procedure does not allow radiation diagrams with wide beams since the interaction between poles involved in the wide beam and their corresponding leaky modes cannot be easily handled. To overcome this limitation, this paper describes a novel method for designing radiation diagrams of leaky‐wave antenna arrays based on the theory of IIR discrete filters. The proposed method relies on the design of discrete filters with the prototypes of analog low‐pass filters defined by Butterworth and Chebyshev type I polynomials, whose roots along with the bilinear transformation provide the location of the poles and the zeros of the discrete LTI system and, therefore, the parameters of the leaky‐wave antenna array. Results with different designs and a comparison with other approaches show the utility and effectiveness of this novel method to design wide‐beam leaky‐wave antenna arrays.

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“…LWAs proposed earlier for such applications in V-band [16], [24] can have large scanning range, but are characterized by a low rate of change of the main beam pointing direction with frequency, i.e., a low beam steering rate (𝑆 m ). To limit the spectral resources for a given scanning range [11], [27], [28], a faster 𝑆 m is required.…”

Section: Introductionmentioning

confidence: 99%

On-Body V-Band Leaky-Wave Antenna for Navigation and Safety Applications

Vadher

Sacco

Nikolayev

2022

2022 IEEE Microwaves, Antennas, and Propagation Conference (MAPCON)

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This paper proposes a dual-band frequency scanning meandering microstrip leaky-wave antenna with linear polarization in the Ku-band and circular polarization in the Kband. This is achieved by making use of two spatial harmonics for radiation. The unit cell of the periodic microstrip antenna contains three meanders with mitred corners. To ensure circular polarization, a theoretical formulation is developed taking into account the delay caused by microstrip length intervals. It defines the unit cell geometry by determining the length of the meanders to ensure that axial ratio remains below 3 dB throughout the operational band. Moreover, the meanders are used to provide better control over scanning rate (the ratio of change of angle of maximum radiation with frequency) and reduce spurious radiation of harmonics by ensuring single harmonic operation within the operational band. To guarantee continuous scanning through broadside direction, open stopband is suppressed using mitered angles. The antenna is designed on a 0.254-mm substrate making it suitable for conformal applications. The fabricated antenna shows a backward to forward beam steering range of 72°(-42°to 30°) in the K-band (19.4-27.5 GHz) with circular polarization and of 75°(-15°to 60°) in the Ku-band (11-15.5 GHz) with linear polarization.

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Smart Leaky‐Wave Antennas for IridescentIoTWireless Networks

Cited by 31 publications

References 174 publications

Modelling and Designing Wire-Grid Sparse Antennas Using MoM-based Approaches for Enhanced Performance and Reduced Cost

Modelling and Designing Wire-Grid Sparse Antennas Using MoM-based Approaches for Enhanced Performance and Reduced Cost

Design of Wide‐Beam Leaky‐Wave Antenna Arrays Based on the Bilinear Transformation of IIR Digital Filters and the Z Transform

On-Body V-Band Leaky-Wave Antenna for Navigation and Safety Applications

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