Programmable Metasurface Based on Substrate-Integrated Waveguide for Compact Dynamic-Pattern Antenna

Li, Shangyang; Xu, Feng; Wan, Xiang; Cui, Tie Jun; Jin, Ya‐Qiu

doi:10.1109/tap.2020.3023581

Cited by 26 publications

(23 citation statements)

References 19 publications

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“…Proposed in this paper is a technique to overcome the limitations on bandwidth, gain, and efficiency of THz antennas fabricated on-chip. This is achieved by employing two different technologies, namely a substrate-integrated waveguide (SIW) and a 2D metamaterial, which is commonly referred to as a metasurface [14]. The proposed technique reduces the loss due to the substrate and suppresses the adverse effects of surface waves.…”

Section: Introductionmentioning

confidence: 99%

Antenna on Chip (AoC) Design Using Metasurface and SIW Technologies for THz Wireless Applications

et al. 2021

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This paper presents the design of a high-performance 0.45–0.50 THz antenna on chip (AoC) for fabrication on a 100-micron GaAs substrate. The antenna is based on metasurface and substrate-integrated waveguide (SIW) technologies. It is constituted from seven stacked layers consisting of copper patch–silicon oxide–feedline–silicon oxide–aluminium–GaAs–copper ground. The top layer consists of a 2 × 4 array of rectangular metallic patches with a row of subwavelength circular slots to transform the array into a metasurface. This essentially enlarges the effective aperture area of the antenna. The antenna is excited using a coplanar waveguide feedline that is sandwiched between the two silicon oxide layers below the patch layer. The proposed antenna structure reduces substrate loss and surface waves. The AoC has dimensions of 0.8 × 0.8 × 0.13 mm3. The results show that the proposed structure greatly enhances the antenna’s gain and radiation efficiency, and this is achieved without compromising its physical size. The antenna exhibits an average gain and efficiency of 6.5 dBi and 65%, respectively, which makes it a promising candidate for emerging terahertz applications.

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Section: Introductionmentioning

confidence: 99%

Antenna on Chip (AoC) Design Using Metasurface and SIW Technologies for THz Wireless Applications

et al. 2021

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“…Pattern reconfiguration is achieved by tuning working frequency 22 or controlling metasurface's structure. 23 In the aforementioned design techniques, there are conflicts among antenna performances of gain, directivity, and bandwidth, which are mainly determined by the ground plane's shape. An antenna with a complete ground has high directivity and high gain but narrow bandwidth.…”

Section: Introductionmentioning

confidence: 99%

“…(5) Substrate‐integrated waveguide (SIW) antenna with radiative metasurface. Pattern reconfiguration is achieved by tuning working frequency 22 or controlling metasurface's structure 23 …”

Section: Introductionmentioning

confidence: 99%

A wideband planar pattern reconfigurable antenna for IEEE 802.11ac WLAN applications

Liu

Geng²,

Zhao³

et al. 2022

Int J RF Mic Comp-Aid Eng

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A novel planar pattern reconfigurable antenna is presented. The proposed antenna consists of four identical antenna elements distributed at different positions on a F4B255 substrate forming a cross shape. Each antenna element is composed of a direct fed magnetic dipole with bow tie shape and four coupling fed magnetic dipoles with rectangular shape which achieves wide bandwidth and titled radiation pattern. The ground plane under each antenna element is etched with taper shape to reduce the coupling among antenna elements. The four antenna elements are linked to and fed by one port via a step shaped metal strip on the ground plane and radiation layer, respectively. A PIN diode is mounted in each strip to switch the connection/disconnection of each antenna element with the feeding port. Pattern reconfiguration is obtained by electrically choosing the excitation of each antenna element. The proposed antenna operates in four states with four steerable beam directions of θ = ±45° in both xoz and yoz planes. The measured common bandwidth for the four states is 5.15–5.93 GHz and the measured gain ranges from 6.14 to 8.45 dBi for four states within the bandwidth. The proposed antenna has a low profile and wide bandwidth which makes it a good candidate of micro base station for IEEE 802.11ac Wireless Local Area Network (WLAN) (5.15–5.85 GHz) applications.

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“…These techniques fall into two categories. The first type of techniques is implemented by passive or active phased arrays that require phase shifters 1–10 . Among them, some load switches on antennas, 6–8 and some adopt phase gradient surface 9 or lens 10 to realize wider angle beam‐scanning.…”

Section: Introductionmentioning

confidence: 99%

“…The first type of techniques is implemented by passive or active phased arrays that require phase shifters. [1][2][3][4][5][6][7][8][9][10] Among them, some load switches on antennas, [6][7][8] and some adopt phase gradient surface 9 or lens 10 to realize wider angle beam-scanning. Phased array antenna has the advantages of flexible beam-controlling, wide-angle beam-scanning and high reliability, but the disadvantages of high cost and high profile are also obvious which limit its application in wireless communication systems requiring miniaturized antennas.…”

Section: Introductionmentioning

confidence: 99%

A novel low‐cost beam‐controlling antenna based on digital coding metasurface

Sheng

Cao

Mei

et al. 2022

Int J RF Mic Comp-Aid Eng

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In this paper, a novel beam‐controlling antenna based on a single‐layer digital coding metasurface (DCMS) is presented. A transmission‐type DCMS is placed in the near‐field of the source antenna to form a low‐profile structure with the height of 0.15λ0 in total. These DCMS elements have two kinds of particles with different transmissivity responses to y‐polarized wave, corresponding to two basic digital element 0 and 1 respectively. By designing the coding sequences on DCMS carefully, the radiating mode can be dynamically and real‐time controlled. The proposed antenna has multi‐function that can realize wide‐angle beam‐scanning and wide‐to‐narrow beam switching simultaneously. The scanning angle ranges from −85° to +85° in H‐plane with the gain fluctuation less than 2dBi. The simulation results are verified by experiments. This type of antenna can be applied in a variety of wireless communication systems with the outstanding advantages of low‐profile, low‐cost, and multi‐function.

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Programmable Metasurface Based on Substrate-Integrated Waveguide for Compact Dynamic-Pattern Antenna

Cited by 26 publications

References 19 publications

Antenna on Chip (AoC) Design Using Metasurface and SIW Technologies for THz Wireless Applications

Antenna on Chip (AoC) Design Using Metasurface and SIW Technologies for THz Wireless Applications

A wideband planar pattern reconfigurable antenna for IEEE 802.11ac WLAN applications

A novel low‐cost beam‐controlling antenna based on digital coding metasurface

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