Wyniki 1-1 spośród 1 dla zapytania: authorDesc:"Ammar Alhegazi"

Integrated Filtering Antenna with High Selectivity Band Rejection for UWB Applications DOI:10.15199/48.2016.09.55

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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. Streszczenie. 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. Antena UWB ze zintegrowanym filtrem do selektywnego usuwania wybranego pasma. Keywords: Bandstop filter, defected microstrip structure, filtering-antenna, ultra-wideband (UWB). Słowa kluczowe: antenna UWB, filtr pasmowy. Introduction Nowadays, ultra-wideband (UWB) technology received a major boost for use in several present and future applications that required transmitting and receiving data with very high data rates over short-range wireless communication systems using the existing communication standards. One of the problems that the UWB technology is facing the interference with other narrow band technologies (e.g., WLAN, HIPERLAN) operating in a frequency band occupied by the UWB bandwidth. Therefore, in order to overcome this problem band rejected technique is used to remove undesired signals and reduce the possible interference. Currently, most research improvements trend towards miniaturization and simplicity, thus it is great interest to combine a microwave antenna and filter into a single device that [...]

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