Temat: leaf shape - Katalog OPAC zbiorów

Skocz do pozycji: 1.

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: 2.

Tytuł:: Zmienność cech morfologicznych liści brzozy brodawkowatej (Betula pendula Roth) w Polsce
Leaf morphology in Polish populations of silver birch [Betula pendula Roth]
Autorzy:: Wojda, T.
Powiązania:: https://bibliotekanauki.pl/articles/973201.pdf
Data publikacji:: 2007
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: brzoza brodawkowata
rody hodowlane
proweniencje
Betula pendula
cechy morfologiczne
zmienność cech
liście
leśnictwo
drzewa leśne
leaf morphology
leaf shape
silver birch
Opis:: Variation in leaf morphology in 9 populations of the silver birch in Poland was investigated. 11 measurements were made on each leaf. Leaf width and length as well as perimeter and area were positively correlated with petiole length. There was also strong positive relationship between perimeter, width and area. Analysis of variance showed significant differences between provenances in most of features of leaf. Provenances Browsk, Chełm, Siedlce were the most similar to each other. Leaves from Augustów had the biggest length but their petiole length, perimeter and area were the smallest
Źródło:: Sylwan; 2007, 151, 03; 3-10
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

Artykuł

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