Temat: notch-band - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Optical generation of ultra-wideband signals with a reconfigurable spectral notch-band
Autorzy:: Xiang, P.
Chen, Y.
Chen, D.
Zhao, J.
Powiązania:: https://bibliotekanauki.pl/articles/174353.pdf
Data publikacji:: 2014
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: ultra-wideband (UWB)
ultra-wideband over fiber
notch-band
interference avoidance
Opis:: A novel method for optical generation of ultra-wideband signals with a reconfigurable spectral notch-band is proposed. In the proposed system, ultra-wideband signals are generated in the optical domain and an optical tunable delay line is deployed to introduce a notch-band to the spectral profile of the generated ultra-wideband signals, which can effectively avoid the signal interference between ultra-wideband signals and pre-planned narrowband wireless signals used in wireless local area networks (WLAN). A theoretical model describing the proposed system is derived; the optical generation and fiber transmission of ultra-wideband signals with a reconfigurable notch-band are demonstrated via computer simulations.
Źródło:: Optica Applicata; 2014, 44, 3; 411-419
0078-5466
1899-7015
Pojawia się w:: Optica Applicata
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Designing a Compact Microstrip Antenna Using the Machine Learning Approach
Autorzy:: Sharma, Kanhaiya
Pandey, Ganga Prasad
Powiązania:: https://bibliotekanauki.pl/articles/1839319.pdf
Data publikacji:: 2020
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: artificial neural network
dual band
microstrip antenna
notch
Opis:: This paper presents how machine learning techniques may be applied in the process of designing a compact dual-band H-shaped rectangular microstrip antenna (RMSA) operating in 0.75–2.20 GHz and 3.0–3.44 GHz frequency ranges. In the design process, the same dimensions of upper and lower notches are incorporated, with the centered position right in the middle. Notch length and width are verified for investigating the antenna. An artificial neural network (ANN) model is developed from the simulated dataset, and is used for shape prediction. The same dataset is used to create a mathematical model as well. The predicted outcome is compared and it is determined that the model relying on ANN offers better results.
Źródło:: Journal of Telecommunications and Information Technology; 2020, 4; 44-52
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Modified Groove Coupled Compact EBG Unit Cell as Notch Filter in a UWB Antenna
Autorzy:: Sarmah, Kumaresh
Goswami, Sivaranjan
Sarma, Angana
Baruah, Sunandan
Powiązania:: https://bibliotekanauki.pl/articles/227103.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: EBG
groove feed
UWB Antenna
band notch
Opis:: In this paper, a conventional mushroom-type EBG unit cell is made compact by etching a C-slot at its conducting surface. Further, the C-slotted mushroom-type EBG unit cell is coupled with a microstrip line using a novel groove-coupling technique to design a notch filter. The arrangement has achieved in the reduction of the electrical size of the mushroom type EBG unit cell by 46.15% and create a stop band suppression of -12 dB. The proposed EBG is applied to notch a narrow band centered at 5.2 GHz along with an ultra-wideband antenna. The far field gain of the antenna is suppressed by -5.8 dBi along the direction of its major lobe at 5.2 GHz. The overall size of the antenna system is 19 x 27 x 1.6 mm³ which is compact. The performance of the antenna is validated from the simulation and measured results.
Źródło:: International Journal of Electronics and Telecommunications; 2020, 66, 2; 261-266
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Band Notch Characteristics Reconfigurable UWB Leaf Shape Monopole Antenna
Autorzy:: Muthusamy, Pachiyaannan
Nallapaneni, Srikanta
Perumalla, Krishna Chaitanya
Punna, Bharghava
Powiązania:: https://bibliotekanauki.pl/articles/2055232.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: band notch
PIN diode
leaf shape monopole antenna
reconfigurable
UWB
Opis:: In this paper a band notch characteristics reconfigurable UWB leaf shape monopole antenna is reported. The proposed antenna size is 42×32×1.6 mm³ and simulated S11-10dB impedance bandwidth is from 2.1 to 13.0 GHz. The notch bands are embodied into the designed antenna to suppress Bluetooth and WiFi bands from 2.3-2.7 GHz and 4.6-5.3 GHz. The PIN Diode is loaded to slot on the DGS to achieve notch bands. It has 4.48dB and 1.7dB gain achieved when diode ON and OFF condition. Further, it encompasses a bio-inspired leaf shape patch having high feasibility for deployment in secret and military purposes.
Źródło:: International Journal of Electronics and Telecommunications; 2022, 68, 2; 223--228
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: Design of an Ultrawideband CPW-Fed Monopole Antenna with a Band-Notch Function
Autorzy:: Hosseini-Varkiani, M.
Hojat-Kashani, F.
Kamyab Hesari, M.
Powiązania:: https://bibliotekanauki.pl/articles/226522.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: monopole antenna
notch-band
coplanar waveguid
(CPW)
UWB
Opis:: In this paper, a CPW-fed monopole antenna for ultra wideband (UWB) applications using band-notch characteristics with size of (24×24×1.6 mm³ ) is presented. The antenna is designed for operation across the entire UWB from 3.1 to 10.6 GHz with band-notch in 5-6 GHz, by inserting an H-shaped slot on the CPW staircase feed line. The proposed antenna has a reflection coefficient below -10 dB through the frequency band. Also, reasonable gain values and good radiation pattern over the same frequency band have been observed. Details of the proposed antenna and experimental results are discussed and parametric study is presented.
Źródło:: International Journal of Electronics and Telecommunications; 2011, 57, 1; 109-113
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

Artykuł

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