A Leaky-Wave Antenna Array With Beam-Formed Radiation Pattern for Application in a Confined Space

Geng, Yunjie; Wang, Junhong; Liang, Zheng; Li, Yujian; Chen, Meie; Zhang, Zhan

doi:10.1109/access.2019.2926212

Cited by 23 publications

(15 citation statements)

References 16 publications

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“…In Table 3 we compare the pertinent parameters and performance between our proposed BCSIW LWA and previously published LWAs and we can see that the bandwidth, scanning range and the measured gain of the BCSIW LWA are better than those in Refs [13], [24], [25] and [27]. Comparing to the SIGW LWA in Ref [26], the measured bandwidth, scanning range and length (compactness) of the BCSIW LWA are much better, though the measured gain is slightly smaller.…”

Section: Comparison With Previous Workmentioning

confidence: 84%

A Simple High-Gain Millimeter-Wave Leaky-Wave Slot Antenna Based on a Bent Corrugated SIW

et al. 2020

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We propose a bent corrugated substrate integrated waveguide (BCSIW) structure that can be used to design a high gain leaky wave antenna (LWA). The design removes the need for a metallic via fabrication process needed for standard substrate integrated waveguides (SIW) and displays superior performance to previously reported structures. We use simulations to compare the performance of the proposed BCSIW LWA to equivalent standard SIW and corrugated SIW (CSIW) structures, as well as experimentally characterize a fabricated BCSIW LWA. Simulation results show that the BCSIW structure can help improve the impedance bandwidth of a slotted LWA by about 14.7% while still maintaining high gain (about 13.2-17.4 dBi) as compared to an LWA based on a CSIW structure. Measurement results indicate that the proposed BCSIW LWA has a wide impedance bandwidth (32.6%) and a high peak gain (12-16.2 dBi) throughout a large frequency range from 22 to 29.2 GHz with a large beam angle range from −69 • to −10 •. INDEX TERMS Leaky-wave antenna (LWA), substrate integrated waveguide (SIW), bent corrugated, low-cost.

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Section: Comparison With Previous Workmentioning

confidence: 84%

A Simple High-Gain Millimeter-Wave Leaky-Wave Slot Antenna Based on a Bent Corrugated SIW

et al. 2020

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“…The antennas in Refs. [32,37] realised a high FSS, which can release the bandwidth burden of the system. However, they are plagued by a relatively limited beam-scanning range.…”

Section: Experimental Validationmentioning

confidence: 99%

A unidirectional frequency beam‐scanning antenna using composite slow‐wave waveguide based on substrate integrated waveguide and spoof surface plasmon polariton structure

Wang

Chung

Kong

et al. 2021

IET Microwaves Antenna & Prop

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In this study, a novel frequency beam-scanning (FBS) antenna based on composite substrate integrated waveguide/spoof surface plasmon polariton (SIW/SSPP) waveguide is proposed. The composite SIW/SSPP slow-wave waveguide is designed by embedding a series of periodic subwavelength H-shaped grooves on the top surface of the SIW. Its transmission characteristics own both the features from SIW and SSPP, and can be flexibly mansplained by tuning the key structural parameters. To convert the propagating composite slow-wave mode into the radiation mode effectively, a new flexible digital modulation method with staggered metallic vias is proposed and used. The presented beam-scanning antenna has a simple feeding structure, a single dielectric layer, and a compact volume of 0.75 � 8.55 � 0.015 λ 0 3 . A prototype of the antenna is fabricated and tested to verify its performance. The experimental results demonstrate that the proposed antenna can realise a continuous beam-scanning angle of 49°in an operating bandwidth of 8.7-9.2 GHz with a high frequency-scanning sensitivity (FSS) of 9.8 °/100 MHz −1 . Moreover, the measured results indicate that the antenna has high peak gain with an average level of 12.7 dBi, high radiation efficiency with an average level of 87%, and stable unidirectional radiation pattern in the working band. K E Y W O R D Sfrequency beam-scanning (FBS) antenna, spoof surface plasmon polariton (SSPP), substrate integrated waveguide (SIW) This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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“…[7][8][9]13]. Furthermore, compared with LWAs with etched single transverse slot radiators [7][8][9]14], our design enables backward to forward beam scanning through the combination of two different types of radiators. In particular, besides more compact structure, the present LWA has much larger bandwidth (45.6%) than our earlier work [14] (28.1%).…”

Section: Fabrication and Characterizationmentioning

confidence: 99%

“…For this reason, recent focus has been on using a substrate integrated waveguide (SIW) as a dielectric-filled waveguide structure, since this structure has several attractive features such as low cost, low loss, and being easy to integrate with planar circuits [5]. Several types of SIW leaky-wave antennas with transverse slots have been reported [7][8][9]. Furthermore, the electric fields of microstrip line are evaluated by McMillan et al [10], and their analyses illustrate that the microstrip transmission line also allows a leaky mode.…”

Section: Introductionmentioning

confidence: 99%

A Novel Millimeter-Wave Backward to Forward Scanning Periodic Leaky-Wave Antenna Based on Two Different Radiator Types

Zhang¹,

Liu²,

Meng³

et al. 2020

PIER

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A periodic millimeter wave leaky-wave antenna (LWA), which has two different types of radiator elements that enable backward to forward radiation, is proposed. The unit-cell of the LWA consists of two quarter-wavelength microstrip lines and two corrugated substrate integrated waveguide (CSIW) cells with S-shaped quarter-wavelength open-circuit stubs. In addition to two parallel edge radiators, a single etched transverse slot with a tilt angle acts as an ancillary radiator, which ensures impedance matching in a large frequency range and achieves the backward to forward scanning. We analyze the proposed design through simulations, characterize a fabricated prototype, and find it to have good radiation properties including broad impedance bandwidth. The measurement results show a high peak gain from 11 to 15.8 dBi with a large scanning angle range from −34 • to +22 • in the K-band operating frequency range.

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A Leaky-Wave Antenna Array With Beam-Formed Radiation Pattern for Application in a Confined Space

Cited by 23 publications

References 16 publications

A Simple High-Gain Millimeter-Wave Leaky-Wave Slot Antenna Based on a Bent Corrugated SIW

A Simple High-Gain Millimeter-Wave Leaky-Wave Slot Antenna Based on a Bent Corrugated SIW

A unidirectional frequency beam‐scanning antenna using composite slow‐wave waveguide based on substrate integrated waveguide and spoof surface plasmon polariton structure

A Novel Millimeter-Wave Backward to Forward Scanning Periodic Leaky-Wave Antenna Based on Two Different Radiator Types

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