Tunable Multiferroics for Reconfigurable RF System Packages

Gaire, Pawan; Jaiswal, Veeru; Sayeed, Sk Yeahia Been; Volakis, John L.; Pulugurtha, Markondeya Raj; Bhardwaj, Shubhendu

doi:10.1109/nmdc50713.2021.9677517

Cited by 2 publications

(1 citation statement)

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“…Also, due to the number of layers, higher insertion losses are to be expected. To develop an active IE with a curved surface facing the impinging signal, one option is to divide the IE cylinder into multiple sectors or quadrants with tunable refraction properties to achieve desired effective n. Such advances in dielectric interface development techniques are discussed in [21], [32] and [33]. These approaches can be exploited to realize refractive responses similar to the ones shown in Fig.…”

Section: Active Refractive Iementioning

confidence: 99%

Reconfigurable Intelligent Edges: Illuminating the Shadow Region in Wireless Networks

Cotton¹,

Abbasi²,

Machado³

et al. 2022

IEEE Access

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This paper proposes a new wireless enabling technology for future smart radio environments. The approach aims to enhance signal coverage within the shadow region(s) of wireless networks with the aid of so-called 'intelligent edges (IEs)'. IEs may be installed at the fringes of shadowing objects such as buildings, walls and other obstacles which obscure the optical signal path from a transmitter to receiver. We investigate two different approaches to illuminating the shadow region in wireless networks using IEs which exploit refraction or diffraction, operating in passive or active mode. The operation of IE-assisted communications are investigated, in particular the ways they can redirect electromagnetic energy towards regions with little or no wireless network coverage. Following from this, a number of variations of IEs are tested in real-world scenarios which consider illuminating the shadow region behind high-rise buildings, first in a city center, and then along a shoreline. Refractive IEs in particular, are shown to provide significant gains compared to the case when no IEs are involved, enhancing signal reception in the shadow region at street level behind a high rise building by as much as 12 dB. Critically, it is shown that intelligent edges offer a low complexity and cost-effective solution for improving connectivity in shadowing-limited environments.

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Section: Active Refractive Iementioning

confidence: 99%