Conclusion and Future Outlook

Rodrı́guez, Jonathan

doi:10.1002/9781118867464.ch12

Cited by 18 publications

(22 citation statements)

References 16 publications

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“…Grant et al [ 2 ] address the fundamentals of RF switches, providing a comparison between semiconductor and RF MEMS switches. RF MEMS switches are widely used in radar [ 3 ], satellite communication systems [ 4 ], smart antennas with beam forming and phased array capabilities [ 5 ], tunable filters [ 6 ], phase-shifting networks [ 7 ] and other important fields. Daneshmand et al [ 4 ] describe the potential applications of RF MEMS switch matrices in the satellite industry, wherein mass reduction and performance improvement are crucial.…”

Section: Introductionmentioning

confidence: 99%

“…Daneshmand et al [ 4 ] describe the potential applications of RF MEMS switch matrices in the satellite industry, wherein mass reduction and performance improvement are crucial. J. Rodriguez [ 5 ] tells us that RF MEMS switches and transmission lines can realize the function of phase shift so that they can point out the antenna beam to a desired location with high precision.…”

Section: Introductionmentioning

confidence: 99%

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Novel High Isolation and High Capacitance Ratio RF MEMS Switch: Design, Analysis and Performance Verification

et al. 2022

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In this paper, a novel high isolation and high-capacitance-ratio radio-frequency micro-electromechanical systems (RF MEMS) switch working at Ka-band is designed, fabricated, measured and analyzed. The proposed RF MEMS switch mainly consists of a MEMS metallic beam, coplanar waveguide (CPW) transmission line, dielectric layer and metal–insulator–metal (MIM) fixed capacitors. The measured results indicate that the insertion loss is better than 0.5 dB at 32 GHz, and the isolation is more than 35 dB at the resonant frequency. From the fitted results, the capacitance ratio is 246.3. Compared with traditional MEMS capacitive switches, this proposed MEMS switch exhibits a high capacitance ratio and provides a wonderful solution for cutting-edge performance in 5G and other high-performance applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Novel High Isolation and High Capacitance Ratio RF MEMS Switch: Design, Analysis and Performance Verification

et al. 2022

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“…The 5th Generation Mobile Communication Technology (5G) is becoming the focus of both industry and academia worldwide, as they are predicted to be able to deliver 1,000 times the capacity of current mobile networks, along with 10–100 times higher data rates compared to 4G wireless networks ( Le et al, 2015 ). According to Rodriguez (2015) and Liyanage (2018) , mobile stakeholders are already preparing to meet the challenging 5G requirements, such as 10–100 times more connected devices, a peak rate of up to 10GBits bits per second, 100 times more energy and cost efficiency, and 10–30 times lower latency. The benefits of deploying 5G networks are not limited to pure individual needs for lifestyle changes, but also extend to national economic, political, and military enhancement.…”

Section: Introductionmentioning

confidence: 99%

The effects of expectancies and patriotism on Chinese use intention of 5G network

Zhang

Jiayi²,

Chen³

2022

Front. Psychol.

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China leads the world in the development and rollout of 5G network, yet less research has been done on the drivers of Chinese people’s adoption of 5G network, especially the specific role of national sentiments, such as the influence of patriotism on their attitude toward 5G network. The study obtained 804 effective online questionnaires from the respondents of various ages, genders, areas, and educational levels. The results based on the structural equation modeling (SEM) analysis showed that patriotism was an antecedent to Chinese users’ cognition of the conditions provided by the government and telecom operators and the extent that users were influenced by media and surrounding people, which in turn increased users’ expectations of the performance of 5G network and their confidence in adapting to 5G network, and resulted in an increased willingness to use 5G network. This research helps to understand the role of patriotism, which is an emotional factor, in stimulating Chinese users’ attitudes toward 5G network at the time when 5G network is putting into large-scale commercial use in China.

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“…Use of WLAN, WiMAX, UWB, multiple-input–multiple-output (MIMO) antenna systems, and modulation techniques have contributed in the access of higher data rates in indoor as well as in urban areas [26]. The common issues coming up from these are the range problems, number of users connected to a single access point, and the distribution of access points over the infrastructure [27].…”

Section: Introductionmentioning

confidence: 99%

5G beamforming techniques for the coverage of intended directions in modern wireless communication: in-depth review

Rao¹,

Pant²,

Malviya³

et al. 2020

Int. J. Microw. Wireless Technol.

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The growing need of the compact and portable antennas with high speed and low latency wireless communication is the present and future demand of the voice over Internet protocol, on-demand bandwidth, and multimedia applications. Fifth-generation (5G) covers certain low-frequency bands under 6 GHz spectrum, and most of the high-frequency bands under 60 GHz. 5G is the part of the millimeter wave spectrum (30–300 GHz) and is introduced to overcome the problem of spectrum shortage due to exponential enhancement of wireless applications in industry, medical, airborne, radar, satellite, and research fields. The International Telecommunication Union's objective of wireless communications promises to provide higher data rates up to 10 Gbps for 5G mobile users and connectivity to the artificial intelligence devices, along with high spectral efficiencies and enhanced coverage. The users for the 5G require around 5 and 50 Gbps of data rates for low and high mobility, respectively. Beamforming in 5G is the modern powerful technique for the coverage of the intended user/direction using the narrow beam width radiation patterns. A brief survey on 5G beamforming techniques, i.e. analog, digital, hybrid, switched, and adaptive etc. and its types, working algorithms, design of compact antennas, gain, and size/type of the substrates is carried out in this paper. The study of the hybrid coupler, branchline coupler, Wilkinson power divider, and Butler matrix in beamforming is required for 5G smart antennas. Different beam widths like ±15, ±35, ±45, and ±55° etc. are produced for the intended directions using a variety of beamforming techniques. From lower to higher frequency band beamforming applications with Roger's Duroid 4003/4350/5880, tectonic, and aluminum oxide dielectric substrates are discussed here. Various beamforming techniques with their merits, demerits, and applications are included in the paper for the knowledge extension of the beamforming antenna designers and research community.

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Conclusion and Future Outlook

Cited by 18 publications

References 16 publications

Novel High Isolation and High Capacitance Ratio RF MEMS Switch: Design, Analysis and Performance Verification

Novel High Isolation and High Capacitance Ratio RF MEMS Switch: Design, Analysis and Performance Verification

The effects of expectancies and patriotism on Chinese use intention of 5G network

5G beamforming techniques for the coverage of intended directions in modern wireless communication: in-depth review

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