MEMS Integrated and Micromachined Antenna Elements, Arrays, and Feeding Networks

Pan, Bo; Papapolymerou, John; Tentzeris, Manos M.

doi:10.1002/9780470294154.ch17

Cited by 6 publications

(4 citation statements)

References 35 publications

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“…According to the property of FA, the positions of the FAs can be altered mechanically using drive components, such as stepper motors. In addition to motor-based FAs, an alternative and efficient approach to implementing FAs is through the microelectromechanical systems (MEMS)-integrated antenna [30]. It has compact components and thus can be easily integrated in small devices.…”

Section: Proposed Fluid Antenna-assisted Index Modulationmentioning

confidence: 99%

Index Modulation for STAR-RIS Assisted NOMA System

et al. 2023

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In this letter, we first incorporate the concept of index modulation (IM) into simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) aided non-orthogonal multiple access (NOMA) system to improve the spectral efficiency. Specifically, the proposed IM aided STAR-RIS-NOMA system enables extra information bits to be transmitted by allocating subsurfaces to different users in a pre-defined subsurface allocation pattern. Furthermore, an approximate closed form expression on bit error rate (BER) is derived. Simulation results demonstrate that the proposed IM aided STAR-RIS-NOMA system is able to acquire transmission rate improvement compared to the conventional STAR-RIS NOMA.

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Section: Proposed Fluid Antenna-assisted Index Modulationmentioning

confidence: 99%

Index Modulation for STAR-RIS Assisted NOMA System

et al. 2023

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Section: Analysis For Performance Enhancement In the Antennas For 5g ...mentioning

confidence: 99%

“…The efficiency of the antenna elements is determined by the ratio of power radiated to the power transmitted into the free space. From the standard far-field radiation pattern method, the efficiency can be calculated as [94]: where, E θ represents field pattern in the vertical direction. E f represents field pattern in horizontal direction.…”

Section: Slotted Loopmentioning

confidence: 99%

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Multiple input multiple output (MIMO) and fifth generation (5G): an indispensable technology for sub-6 GHz and millimeter wave future generation mobile terminal applications

Ishteyaq

Muzaffar

2021

Int. J. Microw. Wireless Technol.

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The in-depth exploration in the future 5G technology symbolizes a revolution in technology for antenna designers to encounter the all time increasing need as well as demand for higher data rate wireless communications. The paper gives out an exhaustive review of the evolution and characteristics of the 5G spectrum allocations, the MIMO antenna design with regard to mutual coupling reduction techniques and safer user applications. It precisely covers almost all the aspects of 5G which mainly include the types of antenna designs and their performance parameters related to MIMO design. The paper also presents a brief description of massive MIMO technology for base station applications. The main aim of the paper is: (1) to emphasize the frequencies allocated for the 5G including sub-6 Ghz and mm-wave bands; (2) to underline the suitable antenna designs for MIMO applications for mobile devices and base stations; (3) to highlight the mutual coupling effects in MIMO designs and its reduction techniques; (4) to consider the gaps in the literature and the challenges for reducing SAR effects for the safety of the users. This review paper has been an attempt to explore the evolution of 5G bands and antenna designs for 5G applications, comparison based on the literature, and the techniques implemented for enhancing the MIMO antenna performances.

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