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Integrated filtering antenna with high selectivity band rejection for UWB applications

100%

Alhegazi A. , Zakaria Z. , Shairi N. , Salleh A. , Ahmed S.

Przegląd Elektrotechniczny

2016

tom R. 92, nr 9

224--228

In this paper, a new design composed of an UWB monopole antenna integrated with bandstop filter (BSF) has been proposed. The bandstop filter is constructed by using a defected microstrip structure (DMS). The proposed design covers frequency bandwidth from 3 GHz to 14 GHz (129.5%), with single band rejection from 5.1 GHz to 5.8 GHz (12.8%). The new integration of filter and antenna shows a high level of rejection, wide impedance bandwidth, realized peak gain of 5.23 dB and stable omnidirectional azimuth pattern. Therefore, the proposed design is suitable to be used in reducing the possible interference problem for the UWB applications.

W artykule opisano projekt anteny UWB ze zintegrowanym filtrem. Filtr został wykonany z wykorzystaniem struktury mikropaska . Antena umożliwia wykrywanie sygnałów w paśmie 3 – 14 GHz z możliwością usuwania pasma 5.1 – 5.8 GHz. Umożliwia to rozwiazywanie problemu interferencji fal.

A preliminary study on semen collection, its evaluation, and testicular and sperm morphometries in the wild proboscis monkey (Nasalis larvatus)

86%

Zainuddin Z. Z. , Tarmizi M. R. M. , Chee Y. K. , Erut A. , Fitri W. N. , Salleh A.

nr 3

Distribution of total petroleum hydrocarbons and polycyclic aromatic hydrocarbons in Musa Bay sediments (northwest of the Persian Gulf)

72%

Tehrani G. M. , Hashim R. , Sulaiman A. H. , Sany S. B. T. , Salleh A. , Jazani R. K. , Savari A. , Barandoust R. F.

Environment Protection Engineering

2013

tom Vol. 39, nr 1

115--128

Sediment samples were collected from the coastal area of the Petrochemical Special Economic Zone of Musa Bay. The samples were analyzed to determine the degree of hydrocarbon contamination and identify the sources of PAHs which were evaluated by employing the ratios of specific PAHs compounds and principal component analysis (PCA). The levels of TPH concentration in the studied area were relatively moderate compared to the world-wide chronically oil-contaminated locations. The concentration of total PAHs was lower than those in other parts of the Musa Bay but approached the NOAA sediment quality guideline value.