Integration of millimeter-wave and optical link for duplex transmission of hierarchically modulated signal over a single carrier and fiber for future 5G communication systems

This paper presents a design of a triangular slot-loaded planar rectangular antenna array for wideband millimeter-wave (mm-wave) 5G communication systems. The proposed array realizes an overall size of 35.5 × 14.85 mm2. To excite the array elements, a four-way broadband corporate feeding network was designed and analyzed. The proposed array offered a measured impedance bandwidth in two different frequency ranges, i.e., from 23 to 24.6 GHz and from 26 to 45 GHz. The single-antenna element of the array consists of a rectangular patch radiator with a triangular slot. The partial ground plane was used at the bottom side of the substrate to obtain a wide impedance bandwidth. The peak gain in the proposed array is ≈12 dBi with a radiation efficiency of >90%. Furthermore, the array gives a half-power beamwidth (HPBW) of as low as 12.5°. The proposed array has been fabricated and measured, and it has been observed that the measured results are in agreement with the simulated data.

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A 21.6–30.3 GHz injection‐locked frequency tripler with Darlington injection for 5G communication systems

International Journal of Circuit Theory and Applications ◽

10.1002/cta.2929 ◽

2021 ◽

Author(s):

Zhen Li ◽

Zhenrong Li ◽

Xing Quan ◽

Zeyuan Wang ◽

Yiqi Zhuang

Keyword(s):

Communication Systems ◽

5G Communication

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Design of a Microwave Power Detection System in the 5G-Communication Frequency Band

Sensors ◽

10.3390/s21082674 ◽

2021 ◽

Vol 21 (8) ◽

pp. 2674

Author(s):

Qingying Ren ◽

Wen Zuo ◽

Jie Xu ◽

Leisheng Jin ◽

Wei Li ◽

...

Keyword(s):

Frequency Band ◽

Microwave Power ◽

Communication Systems ◽

Detection System ◽

Measurement Sensitivity ◽

Detection Range ◽

Detection Systems ◽

Detection Frequency ◽

Communication Frequency ◽

5G Communication

At present, the proposed microwave power detection systems cannot provide a high dynamic detection range and measurement sensitivity at the same time. Additionally, the frequency band of these detection systems cannot cover the 5G-communication frequency band. In this work, a novel microwave power detection system is proposed to measure the power of the 5G-communication frequency band. The detection system is composed of a signal receiving module, a power detection module and a data processing module. Experiments show that the detection frequency band of this system ranges from 1.4 GHz to 5.3 GHz, the dynamic measurement range is 70 dB, the minimum detection power is −68 dBm, and the sensitivity is 22.3 mV/dBm. Compared with other detection systems, the performance of this detection system in the 5G-communication frequency band is significantly improved. Therefore, this microwave power detection system has certain reference significance and application value in the microwave signal detection of 5G communication systems.

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Millimeter Wave Spatial Channel Characterization for Vehicular Communications

Proceedings ◽

10.3390/ecsa-6-06562 ◽

2019 ◽

Vol 42 (1) ◽

pp. 64 ◽

Cited By ~ 2

Author(s):

Fidel Rodríguez-Corbo ◽

Leyre Azpilicueta ◽

Mikel Celaya-Echarri ◽

Peio López-Iturri ◽

Imanol Picallo ◽

...

Keyword(s):

Millimeter Wave ◽

Autonomous Vehicles ◽

Communication Systems ◽

Vehicular Networks ◽

Small Scale ◽

Vehicular Communications ◽

Next Generation ◽

Vehicular Communication ◽

High Definition ◽

High Data

With the growing demand of vehicle-mounted sensors over the last years, the amount of critical data communications has increased significantly. Developing applications such as autonomous vehicles, drones or real-time high-definition entertainment requires high data-rates in the order of multiple Gbps. In the next generation of vehicle-to-everything (V2X) networks, a wider bandwidth will be needed, as well as more precise localization capabilities and lower transmission latencies than current vehicular communication systems due to safety application requirements; 5G millimeter wave (mmWave) technology is envisioned to be the key factor in the development of this next generation of vehicular communications. However, the implementation of mmWave links arises with difficulties due to blocking effects between mmWave transceivers, as well as different channel impairments for these high frequency bands. In this work, the mmWave channel propagation characterization for V2X communications has been performed by means of a deterministic in-house 3D ray launching simulation technique. A complex heterogeneous urban scenario has been modeled to analyze the different propagation phenomena of multiple mmWave V2X links. Results for large and small-scale propagation effects are obtained for line-of-sight (LOS) and non-LOS (NLOS) trajectories, enabling inter-data vehicular comparison. These analyzed results and the proposed methodology can aid in an adequate design and implementation of next generation vehicular networks.

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