Integrated Control of Radiations and In‐Band Co‐Polarized Reflections by a Single Programmable Metasurface

Tian, Han Wei; Xu, Liang; Li, Xin; Jiang, Wei; Cui, Tie Jun

doi:10.1002/adfm.202302753

Cited by 14 publications

(8 citation statements)

References 58 publications

(73 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The working mechanism of the proposed SFPRS meta-atom shares some similarities with the radiation-reflection-switching metasurface, [57] as both involve radiation/sensing and reflec-tion functions. The difference is that the radiation-reflectionswitching metasurface needs switching components to alternate between the two functions, while the proposed SFPRS meta-atom can perform the two functions simultaneously at the cost of low sensing loss (≈−10 dB).…”

Section: Discussionmentioning

confidence: 96%

Simultaneously Intelligent Sensing and Beamforming Based on an Adaptive Information Metasurface

Jiang,

Ma,

et al. 2023

Advanced Science

View full text Add to dashboard Cite

Due to its ability to adapt to a variety of electromagnetic (EM) environments, the sensing‐enabled metasurface has garnered significant attention. However, large‐scale EM‐field sensing to obtain more information is still very challenging. Here, an adaptive information metasurface is proposed to enable intelligent sensing and wave manipulating simultaneously or more specifically, to realize intelligent target localization and beam tracking adaptively. The metasurface is composed of an array of meta‐atoms, and each is loaded with two PIN diodes and a sensing‐channel structure, for polarization‐insensitive and programmable beamforming and sensing. By controlling the state of the PIN diode, the proposed meta‐atom has 1‐bit phase response in the designed frequency band, while the sensing loss keeps higher than ‐10 dB for both “ON” and “OFF” states. Hence there is nearly no interaction between the beamforming and sensing modes. Experiments are conducted to show multiple functions of the metasurface, including intelligent target sensing and self‐adaptive beamforming, and the measured results are in good agreement with the numerical simulations and theoretical calculations.

show abstract

Section: Discussionmentioning

confidence: 96%

Simultaneously Intelligent Sensing and Beamforming Based on an Adaptive Information Metasurface

Jiang,

Ma,

et al. 2023

Advanced Science

View full text Add to dashboard Cite

show abstract

“…Programmable metasurfaces have huge capability to control the spatial EM beams in real time, − since the EM features of the unit cells can be manipulated by external DC voltages in a programmable way. Generally, the programmable metasurfaces can be broadly classified into two categories: reflection type , and transmission type. − The reflection-type design is limited by the presence of blocking effects, and both types exhibit disadvantages of high profile.…”

Section: Introductionmentioning

confidence: 99%

“…Generally, the programmable metasurfaces can be broadly classified into two categories: reflection type , and transmission type. − The reflection-type design is limited by the presence of blocking effects, and both types exhibit disadvantages of high profile. As a result, the architecture of integrated programmable metasurfaces , has emerged as a subject of considerable interests among researchers, as it offers a solution to overcome these drawbacks. However, simultaneous controls of the receiving and transmitting beams using a shared aperture have not been sufficiently addressed with an effective solution in designing the programmable metasurface.…”

Section: Introductionmentioning

confidence: 99%

Independent Manipulations of Transmitting and Receiving Channels by Nonreciprocal Programmable Metasurface

Li,

Wang

et al. 2024

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

The electromagnetic (EM) beam manipulations such as spatial scanning have always been the focus in information science and technology. Generally, the transmitting and receiving (T/R) beams of the same aperture should be coincident due to the reciprocal theory, and hence, more flexible controls of the spatial information are limited accordingly. Here, we propose a new approach to achieve independent controls of beam scanning in spatial T/R channels based on one aperture made by a nonreciprocal programmable metasurface. The meta-atom is designed to have independent propagation chains for T/R waves by introducing dual-direction power amplifiers (PAs) as the isolators for one-way transparency. A programmable phase shifter with a 360°coverage is loaded with the PA device in the transmitting or receiving chain to realize independent beam scanning in the T/R channels. A prototype of the proposed metasurface is fabricated, and independent beam scanning in the T/R channels is directly acquired with good performance in our measurements. In addition, a proof of concept of integrated sensing and auxiliary communications is accomplished to verify the validity of the presented method.

show abstract

“…Most recently, Tian et al reported a programmable metasurface for the control of both radiated and reflected waves. 28 Although various new applications have been developed, programmable metasurfaces studied so far are mostly focusing on the manipulation of single linearly polarized (LP) electromagnetic wave. 29−33 As one of the fundamental properties of electromagnetic waves, polarization plays a key role in many physical phenomena and applications.…”

Section: ■ Introductionmentioning

confidence: 99%

“…In ref , an integrated multifunctional programmable metasurface was presented for analog signal processing, polarization conversion, beam manipulation, and near-field sensing. Most recently, Tian et al reported a programmable metasurface for the control of both radiated and reflected waves …”

Section: Introductionmentioning

confidence: 99%

Single-Layer Programmable Metasurface for Manipulating Both Linearly and Circularly Polarized Electromagnetic Waves

Tian,

Shi,

et al. 2024

ACS Appl. Opt. Mater.

View full text Add to dashboard Cite

Programmable metasurfaces provide an innovative scenario to carry out promising control of electromagnetic waves. However, most works focus on the manipulation of only linearly polarized (LP) or circularly polarized (CP) waves, and multilayer configurations are typically desired due to the existence of direct current biasing networks. Here, a general strategy for designing programmable metasurfaces for the manipulation of both LP and CP waves is proposed and verified. As a result, the real-time programmable manipulation of quad-LP (x-polarized, y-polarized, upolarized, v-polarized) and dual-CP (right-hand, left-hand) waves could be achieved. Moreover, by placing both the direct current biasing network and the finely designed isolation circuit on top of the metasurface, only a single dielectric layer is required for such a programmable metasurface. As an example, a single-layer programmable metasurface consisting of 16 × 16 meta-atoms is designed, fabricated, and measured. The PIN diodes incorporated into each meta-atom are used as active components to provide a 1-bit reflective phase control. By shifting the working states of each PIN diode in the meta-atom, wide-angle beam scanning can be obtained. Both the simulated and measured results verify the capacity of the proposed strategy and demonstrate that the designed single-layer programmable metasurface exhibits stable beam scanning for both LP and CP waves, enabling promising applications in future wireless communications.

show abstract

Integrated Control of Radiations and In‐Band Co‐Polarized Reflections by a Single Programmable Metasurface

Cited by 14 publications

References 58 publications

Simultaneously Intelligent Sensing and Beamforming Based on an Adaptive Information Metasurface

Simultaneously Intelligent Sensing and Beamforming Based on an Adaptive Information Metasurface

Independent Manipulations of Transmitting and Receiving Channels by Nonreciprocal Programmable Metasurface

Single-Layer Programmable Metasurface for Manipulating Both Linearly and Circularly Polarized Electromagnetic Waves

Contact Info

Product

Resources

About