Leaky-Wave Antennas

Preez, Jaco du; Sinha, Saurabh

doi:10.1007/978-3-319-35068-4_2

Cited by 4 publications

(2 citation statements)

References 28 publications

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“…Among the various antenna choices suitable for these applications, leaky wave antennas (LWAs) provide a simple mechanism to obtain highly directive and steerable radiation performance [1]. In addition, this class of antenna has a low profile and simple fabrication, which are desirable traits in today's electronics [2]. These characteristics allow their seamless integration into microwave and millimeter wave applications such as automotive radar, surveillance, and other military and commercial applications [3].…”

Section: Introductionmentioning

confidence: 99%

Beam Steerable Half Mode SIW Leaky-Wave Antenna Using FPMS

Ali,

Cheema,

Ghaffar

2023

IEEE J. Microw.

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A novel leaky wave antenna (LWA) with integrated field-programmable microwave substrate (FPMS) unit cells is presented in this article. The proposed antenna consists of a Half Mode Substrate Waveguide (HMSIW), loaded with cross-shaped slots to generate the desired phase response and radiation characteristics. Using the agile FPMS technology, the substrate properties along one of the longitudinal edges of the antenna are varied, which allows the steering of the radiation direction at a single frequency. A total of 70-unit cells are integrated with the antenna at 12 GHz, resulting in a maximum beam steering of 72 • in simulations along the elevation. Experimental results of the fabricated prototype also demonstrate the practical viability of the proposed design concept with a total beam steering of 35°. The design presented in this research serves as a proof-of-concept, setting the stage for forthcoming advancements and refinements in the field of smart antenna systems using FPMS.INDEX TERMS Field programmable microwave substrate (FPMS), leaky wave antenna (LWA), half mode substrate waveguide (HMSIW).

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Section: Introductionmentioning

confidence: 99%

Beam Steerable Half Mode SIW Leaky-Wave Antenna Using FPMS

Ali,

Cheema,

Ghaffar

2023

IEEE J. Microw.

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“…Since W.W. Hansen invented the first known leaky wave antenna in 1940 [1], it has attracted an increasing attention in the research community because of their simple feeding network, high radiating directivity, and frequency scanning capability [2]. Different types of uniform, quasi-uniform, and periodic leaky wave antennas with one-dimensional and two-dimensional radiation characteristics have been investigated and reported in literature [3]- [5].…”

Section: Introductionmentioning

confidence: 99%

A Compact Beam-Scanning Leaky-Wave Antenna With Improved Performance

Tanoli

Khan

Fraz

et al. 2018

Antennas Wirel. Propag. Lett.

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Abstract-A compact microstrip leaky wave antenna (MLWA) with reduced side lobe level and increased linear frequency scanning capability is proposed in this article. Symmetric Yagi-like elements are introduced, which reduce the side lobe level by radiating the remaining power at the physical end of MLWA, and make the radiation plane (XZ plane) symmetric. Defected ground plane is used to optimize the working of Yagi-like elements. Measured results show that the side lobe is suppressed about 16 dB at 4.8 GHz. To further reduce the side lobe level, improve frequency scanning capability, and increase the gain., the leaky section of the antenna is tapered, and two slots of equal dimensions are introduced. The frequency beam scanning is improved compared with conventional MLWAs by achieving a total beam scan of 78 (from broadside [12] to end fire [90]). The measurements performed on the fabricated prototype exhibit good agreement with simulations. Index Terms-Microstrip leaky wave antenna, side lobe level, beam scanning, peak gain.Xiaodong Yang is with the

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