Implementation of Antenna Array Beamforming Networks Designed on Wilkinson Bridges

Ruchenkov, V.A.; Teplyakov, V. D.; Петров, А. С.

doi:10.1134/s1064226918040095

Cited by 3 publications

(2 citation statements)

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“…Internet-of-Things (IoT) is taking a spotlight with 5G communication systems are on the horizon, as significant part of this 5G network is expected to form of IoT devices [33]. These beam steering or repositioning array antennas have many applications in communication field [34][35][36].…”

Section: Beam Steering Of the Proposed 2*1 Array-antenna With Slotsmentioning

confidence: 99%

Design of Antenna Array Based Beam Repositioning for IoT Applications

Mushtaq

Rajawat

Gupta

2021

Wireless Pers Commun

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Internet-of-things has altered pervasive figuring with many applications created around different kinds of sensors/devices. As for these applications lower data-rate is required, so Long Range i.e., LoRa, which is a progressive wireless standard for low power WAN rightly serves this requirement. In the present work, the proposed array antenna has dimensions as 159 × 210 × 2.55 mm 3 with patch of annealed copper and FR-4 (lossy) as the substrate, operating at 433 MHz (LoRa band). Slots are cut in shape of letter 'T' to further improve the performance parameters. The simulation results showed a considerable improvement with the proposed array antenna, as the behavior of the antenna improves in terms of its gain i.e., 2.67 dB which is higher than the gain of single patch i.e., 0.9822 dB. Further the slotted ground plane improved the gain to the best of its value i.e., 3.561 dB. Lastly, beam steering or re-positioning was observed and its effect on main-lobe direction was studied. In this work other parameters like surface current, return loss and current density were also analyzed. The simulations are performed in "Computer Simulation Technology" i.e., CST Microwave Studio. The various parameters have been optimized to obtain the desired values.

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Section: Beam Steering Of the Proposed 2*1 Array-antenna With Slotsmentioning

confidence: 99%

Design of Antenna Array Based Beam Repositioning for IoT Applications

Mushtaq

Rajawat

Gupta

2021

Wireless Pers Commun

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“…Wilkinson power dividers (WPDs) are lossy reciprocal devices with a 1 × N port configuration, characterized for having all their N + 1 ports matched (no reflections) and having N mutually isolated ports. , WPDs provide functionalities of power division/combination , as well as coherent perfect absorption (CPA). − The lossy character of WPDs plays a fundamental role on their mode of operation, since their matching and isolation properties are ultimately enabled by the dissipation of unwanted signals in resistor elements. , WPDs are widely used at RF and microwave frequencies for communication and sensing applications, being a common component of transceivers, transistors, modulators, and phased arrays. − Due to their ability to cover multiple frequency bands, they have been deployed in 5G and satellite communication infrastructures. − In addition, WPDs have been used in networks of amplifiers, , using paralleled configurations to increase their dynamical range. Recent reports also suggest that WPDs might increase the SNR of beam-forming networks …”

Section: Introductionmentioning

confidence: 99%

Noise Cancellation Effects in Integrated Photonics with Wilkinson Power Dividers

Ortega‐Gomez¹,

Hernández²,

Oña³

et al. 2023

ACS Photonics

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Wilkinson power dividers (WPDs) are a popular element in RF and microwave technologies known for providing isolation capabilities. However, the benefits that WPDs could offer to integrated photonic systems are far less studied. Here, we investigate the thermal emission from and the noise performance of silicon-on-insulator (SOI) WPDs. We find that WPDs exhibit a noiseless port, with important implications for receiving systems and absorption-based quantum state transformations. At the same time, the thermal signals exiting noisy ports exhibit nontrivial correlations, opening the possibility for noise cancellation. We analyze passive and active networks containing WPDs showing how such nontrivial correlations can prevent the amplification of the thermal noise introduced by WPDs while benefiting from their isolation capabilities. Using this insight, we propose a modified ring-resonator amplifier that improves by N times the SNR in comparison with conventional traveling wave and ring-resonator amplifiers, with N being the number of inputs/outputs of the WPD. We believe that our results represent an important step forward in the implementation of SOI-WPDs and their integration in complex photonic networks, particularly for mid-IR and quantum photonics applications.

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