A Kind of Tightly Coupled Array With Nonuniform Short-Circuited Branches for the Radiation of UWB Pulses

Wang, Shao-fei; Qiu, Yang-xin

doi:10.1109/tap.2023.3240624

Cited by 5 publications

(7 citation statements)

References 16 publications

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“…However, as previously noted, UWB pulses are typically measured in nanoseconds or picoseconds, and the rapid on/off switching makes the pulse shape non-rectangular but rather helps approximate it as a Gaussian function [ 17 , 27 ]. The basic modulation methods can be applied for UWB to encode information including pulse position modulation (PPM), burst position modulation (BPM), pulse amplitude modulation (PAM), and on–off keying (OOK) [ 68 , 69 ]. Generally, higher-order modulations can achieve higher throughput or good spectral efficiencies by enabling more bits to be sent per symbol [ 68 , 69 , 70 ].…”

Section: Uwb Characteristicsmentioning

confidence: 99%

“…The basic modulation methods can be applied for UWB to encode information including pulse position modulation (PPM), burst position modulation (BPM), pulse amplitude modulation (PAM), and on–off keying (OOK) [ 68 , 69 ]. Generally, higher-order modulations can achieve higher throughput or good spectral efficiencies by enabling more bits to be sent per symbol [ 68 , 69 , 70 ]. PPM is a common method for creating an M -ary system and is easy to implement but requires very good time resolution to modulate the pulses.…”

Section: Uwb Characteristicsmentioning

confidence: 99%

“…UWB technology transmits very short pulses within an extremely large bandwidth from

GHz, which provides a significant bandwidth advantage and a short duty cycle. As a result, UWB offers a larger capacity and higher data rates, making it an excellent choice [ 68 , 69 , 71 ].…”

Section: Uwb Characteristicsmentioning

confidence: 99%

“…Simple transceiver architecture and low cost: UWB uses carrierless waves to transmit data [ 68 , 69 , 71 , 72 ]. As a result, carrier oscillators are not required in order to transmit the carrier frequency for the signal transmission.…”

Section: Uwb Characteristicsmentioning

confidence: 99%

“…As a result, carrier oscillators are not required in order to transmit the carrier frequency for the signal transmission. This eliminates the requirements for a carrier recovery stage for the receiver side, and the UWB transceiver does not require modulators, demodulators, or intermediate frequency components [ 68 , 69 , 71 , 72 ]. This simplicity in the UWB transceiver architecture makes it more lightweight and beneficial compared to narrowband signals.…”

Section: Uwb Characteristicsmentioning

confidence: 99%

See 4 more Smart Citations

Indoor Positioning System (IPS) Using Ultra-Wide Bandwidth (UWB)—For Industrial Internet of Things (IIoT)

Che

Ahmed

Lazaridis

et al. 2023

Sensors

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The integration of the physical and digital world has become increasingly important, and location-based services have become the most sought-after application in the field of the Internet of Things (IoT). This paper delves into the current research on ultra-wideband (UWB) indoor positioning systems (IPS). It begins by examining the most common wireless communication-based technologies for IPSs followed by a detailed explanation of UWB. Then, it presents an overview of the unique characteristics of UWB technology and the challenges still faced by the IPS implementation. Finally, the paper evaluates the advantages and limitations of using machine learning algorithms for UWB IPS.

show abstract

Section: Uwb Characteristicsmentioning

confidence: 99%

Section: Uwb Characteristicsmentioning

confidence: 99%

“…UWB technology transmits very short pulses within an extremely large bandwidth from

GHz, which provides a significant bandwidth advantage and a short duty cycle. As a result, UWB offers a larger capacity and higher data rates, making it an excellent choice [ 68 , 69 , 71 ].…”

Section: Uwb Characteristicsmentioning

confidence: 99%

Section: Uwb Characteristicsmentioning

confidence: 99%

Section: Uwb Characteristicsmentioning

confidence: 99%

See 3 more Smart Citations

Indoor Positioning System (IPS) Using Ultra-Wide Bandwidth (UWB)—For Industrial Internet of Things (IIoT)

Che

Ahmed

Lazaridis

et al. 2023

Sensors

View full text Add to dashboard Cite

show abstract

Tightly coupled arrays with time-domain beam scan for the radiation of high-power ultrawideband electromagnetic pulses

Wang,

Zhu,

Tang

et al. 2023

Review of Scientific Instruments

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In this paper, a kind of tightly coupled array (TCA) with time-domain beam scan is developed for the radiation of high-power ultrawideband (UWB) electromagnetic pulses, and the peak-power pattern is proposed to characterize the directivity. First, the active voltage standing wave ratio (AVSWR) bandwidth of the TCA is optimized, which is the precondition for the beam scan. It indicates that the lower-cutoff frequency (LCF) is inversely proportional to the total length of the whole array; an increase in the distance between the array and the ground plane could remarkably reduce the LCF; and an increase in the element number can also decrease the LCF because of the increase in length, but more elements would make the center elements difficult to match in the low-frequency range, so there is a limitation on the number of elements for a certain LCF. Based on these results, a six-element linear array is designed. Then, the definition of the peak-power pattern is proposed to characterize the directivity of the UWB pulsed antenna. Finally, the optimized six-element array is developed, and the measured working band is 276 MHz–6.4 GHz (AVSWR < 3). The effective potential gain is 1.76, and it improves by 51.7% with a reduction in the aperture area by 68.4% compared with the previous TCA, which means that the aperture efficiency is remarkably improved. The half-power beam width of the developed TCA with the scan angle of 0° is 45°. The time-domain beam scan could be performed with time-delay feeding lines, and the maximum scan angle is over ±30° in the E-plane. The developed TCA can be applied for the generation of high-power electromagnetic environments for the study of intentional electromagnetic interference.

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A Low Profile and Extremely Wide-Band Tightly Coupled Array with Special Balun Structure

Ying,

Zhao,

Zhu

et al. 2024

2024 IEEE International Conference on Computational Electromagnetics (ICCEM)

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A Kind of Tightly Coupled Array With Nonuniform Short-Circuited Branches for the Radiation of UWB Pulses

Cited by 5 publications

References 16 publications

Indoor Positioning System (IPS) Using Ultra-Wide Bandwidth (UWB)—For Industrial Internet of Things (IIoT)

Indoor Positioning System (IPS) Using Ultra-Wide Bandwidth (UWB)—For Industrial Internet of Things (IIoT)

Tightly coupled arrays with time-domain beam scan for the radiation of high-power ultrawideband electromagnetic pulses

A Low Profile and Extremely Wide-Band Tightly Coupled Array with Special Balun Structure

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