Swiftlet Vocalization in Echolocation
Keywords:5G, Coaxial probe, grid array antenna, mobile communications.
The design of compact dual band grid array antenna (GAA) designed on FR-4 substrate for future Fifth Generation (5G) Mobile Communications at 10 GHz is reported. The proposed antenna uses coaxial technique of feeding and has a dimension of 48 mm Ã— 55 mm Ã— 1.6 mm. Simulation results using CST microwave studio illustrates that the antenna has a band from 10.03 GHz to 10.68 GHz and another band from 10.7 GHz to 12.23 GHz. This excludes the 10.68 â€“ 10.7 GHz band in which emissions were forbidden by the Radio Regulations in the sense that it has been allocated for the Radio Astronomy, Space Research and Earth Exploration Satellite (passive). The antenna has a maximum gain of 8.03 dBi at 10 GHz, thus a good candidate for the future 5G mobile communications.
 BrinklÃ¸v, S., Fenton, M.B., Ratcliffe, J.M., "Echolocation in Oilbirds and swiftlets", Front. Physio, 4, (2013), pp.1-12
 Price, J.J., Johnson, K.P., Clayton, D.H., "The evolution of echolocation in swiftlets", 2, (2004), pp.135-143
 Thomassen, H.A., Wiersema, A.T., Bakker, M.A.G. De, Knijff, P. De, et al., "A new phylogeny of swiftlets ( Aves : Apodidae ) based on cytochrome- b DNA", Mol. Phylogenet. Evol., 29,(2003),pp. 86â€“93.
 Thomassen, H.A., Djasim, U.M., Povel, G.D., "Echoclick design in swiftlets : single as well as double click", Ibis,146, (2004), pp. 173â€“174.
 Suthers, R.A., Hector, D.H., "Mechanism for the Production of Echolocating Clicks by the Grey Swiftlet , Collocalia spodiopygia ", Journal of Comparative Physiology.A, 148, (1982),pp.457â€“470.
 Suthers, R.A., (2004) How birds sing and why it matters. In Nature's Music: the science of birdsong. Marler,P. and Slabbekoorn, H.eds. Elsevier. New York. Chapter 9, pp. 272-295
 Nematollahi, M.A., Al-Haddad, S.A.R., Ramli, A.R., Kassim, A., Hashim, S.J., "Frequency domain processing for artificial synthesis of swiftlet's sound Waves", Journal of Telecommunication and Computer Engineering, 9, (2017), pp.89-93.
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