Low-Insertion Loss Pin Diode Switches Using Impedance-Transformation Networks

Liu, Mingming; Jin, Ronghong; Geng, Junping; Liang, Xianling

doi:10.2528/pierc12092604

Cited by 10 publications

(5 citation statements)

References 7 publications

(6 reference statements)

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“…In fact, the transceiver of Fig. 7 employs the same space-time-coded transmission schemes as the LTE-A standard, but it requires a large number of TA elements and a fast RF switching mechanism, which are affordable requirements in the context of millimeter-wave communications [46], [47] (see Section VI-D for further details), and with the aid of currently-available RF technology [58]- [61].…”

Section: A Green Wireless Network: On the Bandwidth-efficiency Versus...mentioning

confidence: 99%

Spatial Modulation for Generalized MIMO: Challenges, Opportunities, and Implementation

et al. 2014

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International audienceA key challenge of future mobile communication research is to strike an attractive compromise between wireless network's area spectral efficiency and energy efficiency. This necessitates a clean-slate approach to wireless system design, embracing the rich body of existing knowledge, especially on multiple-input-multiple-ouput (MIMO) technologies. This motivates the proposal of an emerging wireless communications concept conceived for single-radio-frequency (RF) large-scale MIMO communications, which is termed as SM. The concept of SM has established itself as a beneficial transmission paradigm, subsuming numerous members of the MIMO system family. The research of SM has reached sufficient maturity to motivate its comparison to state-of-the-art MIMO communications, as well as to inspire its application to other emerging wireless systems such as relay-aided, cooperative, small-cell, optical wireless, and power-efficient communications. Furthermore, it has received sufficient research attention to be implemented in testbeds, and it holds the promise of stimulating further vigorous interdisciplinary research in the years to come. This tutorial paper is intended to offer a comprehensive state-of-the-art survey on SM-MIMO research, to provide a critical appraisal of its potential advantages, and to promote the discussion of its beneficial application areas and their research challenges leading to the analysis of the technological issues associated with the implementation of SM-MIMO. The paper is concluded with the description of the world's first experimental activities in this vibrant research field

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Section: A Green Wireless Network: On the Bandwidth-efficiency Versus...mentioning

confidence: 99%

Spatial Modulation for Generalized MIMO: Challenges, Opportunities, and Implementation

et al. 2014

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“…A so small loading capacitance is an advantage of our structure. Using available switches based on pindiodes, one may easily obtain the loading capacitance of this magnitude in the ON state and zero capacitance in the OFF state, whereas the parasitic losses and inductances will be negligibly small [58].…”

Section: B the Mushroom-field Metasurfacementioning

confidence: 99%

Angular and Polarization Stability of Broadband Reconfigurable Intelligent Surfaces of Binary Type

Shabanpour

Simovski

2022

IEEE Access

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Recently, reconfigurable intelligent surfaces (RISs) gained notable consideration due to their ability to provide efficient and cost-effective wireless communication networks. However, this powerful concept often suffers from simplistic modeling which underestimates such features of RIS as the resonant frequency dispersion and strong angular dependency of the reflection phases for both TE and TM polarizations of the incident wave. The angular and polarization instability of the reflection phase is a fundamental restriction of RISs, especially restrictive if the operation frequency band is broad. In this paper, we address this challenge for a binary RIS performed as a metasurface. We have studied the reflection phase frequency dispersion (RPFD) analytically that allowed us to engineer the needed angular and polarization properties of the RIS. Our RIS is a self-resonant grid of Jerusalem crosses located on a thin metal-backed dielectric substrate. Adjacent crosses are connected by switchable capacitive loads. We have shown the advantage of our metasurface compared to switchable mushroom-field structures and meta-gratings of resonant patches. An RIS is also fabricated and measured, and the experimental results corroborate well our numerical full wave simulations and analytical predictions.INDEX TERMS Reconfigurable intelligent surface (RIS), wireless communication, angular stability.

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“…In the meantime, the receive beam indices are processed in the digital baseband in order to extract the transmitted log2(M) control information bits. From a practical point of view, RF switches capable of operating at nanosecond or even sub-nanosecond speeds are commercially feasible, [38] and [39], and can be used directly in the BIM systems.…”

Section: Beam Index Modulationmentioning

confidence: 99%

Beam Index Modulation Wireless Communication With Analog Beamforming

Ding

Fusco

Shitvov

et al. 2018

IEEE Trans. Veh. Technol.

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In this paper, we propose a new architecture and performance analysis for beam index modulation (BIM) wireless communication implemented with the aid of analog beamforming. The BIM concept is presented in order to extend and adapt the spatial modulation (SM) concept to sparse wireless communication channel environments. It is shown that when compared with the conventional beamforming and SM strategies, the BIM system can achieve higher spectrum efficiency in high signal to noise ratio (SNR) and non-line-of-sight (nLoS) sparse channel scenarios. Furthermore, different to the previous spatial scattering modulation (SSM) work the proposed BIM architectures have reduced hardware complexity, and, importantly, in some nLoS sparse channel conditions the BIM can also outperform the SSM. The above findings were further validated by some demonstrative experiments that were conducted at 10 GHz.

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Low-Insertion Loss Pin Diode Switches Using Impedance-Transformation Networks

Cited by 10 publications

References 7 publications

Spatial Modulation for Generalized MIMO: Challenges, Opportunities, and Implementation

Spatial Modulation for Generalized MIMO: Challenges, Opportunities, and Implementation

Angular and Polarization Stability of Broadband Reconfigurable Intelligent Surfaces of Binary Type

Beam Index Modulation Wireless Communication With Analog Beamforming

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