A topological method for the design and optimization of planar circularly polarized (CP) directional antenna with low profile was presented. By inserting two parasitic layers, generated by particle swarm optimization, between the equiangular spiral antenna and the ground, a low-profile wideband CP antenna with directional radiation pattern and high gain is achieved. The optimized antenna shows an impedance matching band () of 4–12 GHz with a whole-band stable directional pattern in 4–11.5 GHz, and the antenna gain peak is 8 dBi, which work well in the available band. Measured return loss, antenna gain, and far field patterns agree well with simulation results.
from #AlexandrosSfakianakis via Alexandros G.Sfakianakis on Inoreader http://ift.tt/2pJyZ9I
via IFTTT
Εγγραφή σε:
Σχόλια ανάρτησης (Atom)
Δημοφιλείς αναρτήσεις
-
Essay Thesaurus Generator eisenschiml thesis Short essay on great wall of china how to start a compare and contrast essay sample assessing c...
-
How to write a Scholarship Essay - Examples. Scholarship Essays should use this formatting unless specified otherwise: Two to three pages in...
-
The Notch signaling pathway is a very conserved system that controls embryonic cell fate decisions and the maintenance of adult stem cells t...
-
Abstract Chromatin structure is a major barrier to gene transcription that must be disrupted and re-set during each round of transcription....
-
Through the Wormhole: Is There an Edge to... Science - 43 min - ★ It is commonly theorized that the universe began with the Big Bang... Thro...
-
Web version of a book about Subversion. Work in progress, however already very complete. The book should be published by O'Reilly and As...
-
3D CAD Services Streamline Design Process. Neco Inc., of Denver, Colorado, provides 3D Computer Aided Design and support services primarily ...
-
http://ift.tt/2p7HgAl
-
Reported by Scientific American, this Week in World War I: March 24, 1917 -- Read more on ScientificAmerican.com from #Alexandro...
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου