Results 141 to 150 of about 533,787 (299)

Reflectarray for K/Ka Band Terminal Antenna [PDF]

open access: yes, 2008
Different satellite systems have been defined to provide broadband communications and internet access in remote geographical areas in Ka band (20-30 GHz) [1-2], being the up-link at 30 GHz and the down-link at 20 GHz.
Barba Gea, Mariano   +1 more
core  

Butterflies (Lepidoptera Papilionoidea) diversity at Endau-Rompin Johor national park, Malaysia and prioritising the potential groups for nature tourism product [PDF]

open access: yes, 2018
From a total of 17,461 species of butterfly described worldwide, at least twothird are from the tropics. Peninsular Malaysia is home to 1038 butterfly species.
Chooi, Khim Phon   +4 more
core  

Improved dual‐feed single‐beam power‐combining reflectarray antenna [PDF]

open access: bronze, 2013
Eqab Almajali   +3 more
openalex   +1 more source

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