Circularly polarised periodic leaky‐wave antenna with filtering capability

Rahmani, Amir M.; Deslandes, Dominic

doi:10.1049/iet-map.2018.0168

Cited by 9 publications

(2 citation statements)

References 15 publications

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“…On the other hand, Figure 20 shows a typical example of FLWAs that belongs to the enabling technologies of "two-port antenna + filtering structure". It makes use of a two-port patch antenna incorporating microstrip stubs and shorting vias for filtering behavior control [178]. Note that the microstrip stub here acts as not only a filtering structure (i.e., a simple bandstop filter due to the stub's "element resonance") but also a radiator that may harmfully spoil the overall radiation performances of the proposed antenna.…”

Section: ) Filtering Leaky-wave Antennas: Construction Principles And...mentioning

confidence: 99%

Leaky-Wave Structures and Techniques for Integrated Front-End Antenna Systems

Zheng

Chan

2023

IEEE J. Microw.

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Leaky-wave antenna (LWA), as a special kind of waveguiding structure simultaneously characterized by both the guidance and radiation of electromagnetic waves along it, has received much attention and has been in the spotlight of both academia and industry since its inception in the 1940s. This is mainly because LWAs possess many appealing properties such as the highly directive beam, easy feeding mechanism, simple configuration, and particular frequency-driven beam-scanning, which enable them to hold promise in the development of a unique front-end antenna solution than others (e.g., reflector antenna and phased array). In addition to these inherent features, the exploitation of LWAs featuring multifarious sophisticated electrical functionalities (i.e., functional LWAs), with resort to engineering relevant radiating discontinuities and waveguiding structures, constitutes one mainstream research in the communities and increasingly prevails in the research & development of modern multifunctional wireless RF/microwave systems recently. This article is structured under this background, which is mainly dedicated to reviewing and investigating several enabling concepts, structures, and techniques that are specifically applied to the design of functional LWAs characterized by, for example, simultaneously low side-lobe and cross-polarization behaviors, rapid beam-scanning, stable radiation, frequency-selectivity, and open-stopband suppression. To make the technical discussions much more self-contained and systematic, this article begins with leaky-wave basics as well as general geometrical and electrical characteristics of LWAs. In addition, some representative system-level applications enabled by LWAs are briefly described, together with several promising research directions that can be further explored and galvanized, from the authors' perspective.

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Section: ) Filtering Leaky-wave Antennas: Construction Principles And...mentioning

confidence: 99%

Leaky-Wave Structures and Techniques for Integrated Front-End Antenna Systems

Zheng

Chan

2023

IEEE J. Microw.

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“…More useful antennas such as the circularly polarised antennas of [16][17][18] working in the millimetre wave band will have applications in 5G systems especially if they can also steer their beams. For example, the leaky-wave antenna by Rahmani and Deslandes [16] operates in 22-28 GHz band with gain values up to 10 dBi along with the capability of having a wide (84°) scanning range. Another circularly polarised antenna array by Mahmoud and Montaser [17] with 16.85 dBi gain operates in 28 and 38 GHz.…”

Section: Introductionmentioning

confidence: 99%

Broadband planar antenna array for future 5G communication standards

Ullah

Tahir

2019

IET Microwaves, Antennas & Propagation

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This study presents a 5G antenna array for millimetre‐wave communications. Overall size of the proposed antenna array is 40 × 15 mm2, and operates in a measured 23.76–42.15 GHz frequency range. A planar four‐way feed network has been designed, optimised and used to excite the antenna array elements. The single element of the array is spiral monopole surrounded by a boundary of vias with extended ground plane in an inverted U‐shaped manner. Hexagonal parasitic patches have been introduced at the backside to enhance impedance performance of the antenna element. Peak gain of the proposed antenna array is 11.5 dBi with radiation efficiency more than 83% in its entire operating band. The antenna gives a narrow beam‐width of as low as 10.1°. Single element and its 1 × 4 array have been fabricated using standard printed circuit board (PCB) process. Measured results show excellent compliance with the simulated design objectives. The antenna is low cost, low profile with simple design and is capable of being deployed in future 5G communication mobile networks.

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