Evaluation of a single-input multiple-output antenna array for ultra-wide band applications

Ashraf, Muhammad A.; Jamil, Khalid; Sebak, Abdel-Razik; Alshebeili, Saleh; Shoaib, Mobien; Alkanhal, Majeed A. S.; Alhekail, Zeyad

doi:10.1016/j.aeue.2017.06.019

Cited by 2 publications

(2 citation statements)

References 27 publications

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“…There is the following relationship between the two signals S 1 (t) and S 2 (t) with perfect fidelity, as shown in formula (1). Compared with signal S 1 (t), signal S 2 (t) only has amplification in amplitude and translation in time (amplitude gain is A and the time delay is t 0 ).…”

Section: Design Of Power Dividermentioning

confidence: 99%

“…Impulse radiating system has been widely used in multitudinous fields, such as high-resolution imaging, target precisely-locating, through-the-wall radar/groundpenetrating radar, and high-speed communication [1,2,3,4,5]. UWB power divider (PD)/ synthesizer, as an essential component for power dividing or synthesizing in circuits or space, should not only behave high transmission efficiency, high waveform fidelity, but also should be as compact as possible [6,7,8,9].…”

Section: Introductionmentioning

confidence: 99%

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A large-transverse-size short-pulse 4-way power divider with high fidelity

Shi

Xia

Zhang

et al. 2023

IEICE Electron. Express

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A novel compact 4-way ultra-wideband short pulse power divider (PD) based on coaxial waveguide is proposed in this paper. A nylon conical shell is inserted to replace the original transformer oil with an air block at the resonant place of PD to widen the working bandwidth. The junction of all inner conductors is smoothed to increase the fidelity and power capacity. The proposed PD is fabricated and tested. The results show that return loss is better than 12 dB from 191 MHz to 1.33 GHz. The amplitude loss is less than 10% and fidelity is more than 0.95 when input by impulse with full width at half maximum (FWHM) of 1.24 ns.

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Section: Design Of Power Dividermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A large-transverse-size short-pulse 4-way power divider with high fidelity

Shi

Xia

Zhang

et al. 2023

IEICE Electron. Express

View full text Add to dashboard Cite

show abstract

A Fuzzy Based High-Performance DecisionMaking Model for Signal Detection in Smart Antenna Through Preference Leveled Evaluation Functions

Khanum,

Gunasekaran,

et al. 2024

Intelligent Technologies for Research and Engineering

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In a densely populated area with many users, adding a new wireless access point may not necessarily improve Wi-Fi performance. There are times when students must deal with poor download rates even with Access Points (AP) in every classroom. Cochannel interference is the root cause of several typical Wi-Fi issues. A discussion may be compared to Wi-Fi communication. The capacity to communicate and listen properly are both essential for effective communication. When two speakers are speaking in a similar tone, the conversational uncertainty is exacerbated. Wi-Fi broadcasts are the same way. The interference and drag performance might be worsened by two or more nearby APs using the same channel. This study suggests a smart antenna technology. When a smart antenna AP finds a nearby AP signal, it will automatically alter its pattern to minimise interference and provide quick and reliable transmission. The same principle applies when we cup our hands over our lips or ears to enable us to yell or listen more clearly. There are a lot of false positives in the typical approaches for WLAN node signal recognition. The optimal signal for a WLAN node is therefore identified using this study's proposed BPNN model, which uses the PFMDMM system for signal classification. This Decision-Making Model Using Parameterized Fuzzy Measures has been shown via experiments. A WLAN node's optimal signal may be more accurately predicted using a decision-making model based on preference-leveled evaluation functions. The precision of the signal identification and the anticipated findings were found to be almost identical to those obtained from real ground measurements. The test team mimicked cochannel interference, which would occur in a setting with plenty of APs, such as a workplace, hotel, or airport. The suggested smart antenna AP regularly outperformed other apps by an average of 75% greater coverage and unmatched performance.

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Evaluation of a single-input multiple-output antenna array for ultra-wide band applications

Cited by 2 publications

References 27 publications

A large-transverse-size short-pulse 4-way power divider with high fidelity

A large-transverse-size short-pulse 4-way power divider with high fidelity

A Fuzzy Based High-Performance DecisionMaking Model for Signal Detection in Smart Antenna Through Preference Leveled Evaluation Functions

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