Title :
Experimental evaluation of complex form Friis’ transmission formula with indoor/outdoor for ultra wideband inpulse radio
Author :
Promwong, Sathaporn ; Panthap, Payungsak
Author_Institution :
Dept. of Inf. Eng., King Mongkut´´s Inst. of Technol. Ladkrabang, Bangkok
Abstract :
In free space propagation loss we have studied to use the Friispsila transmission formula in complex form to treat the UWB signals to take into account the waveform distortion due to the frequency characteristics of the antennas in Promwong, S., et al, (2004). It is noted that Friispsila transmission formula is applicable only in the far field region. In wireless personal area networks (WPANs) environments, however, the distance may not satisfy the far field condition. In this paper, we report the experimental results of the transmission signal waveform in a Fresnel regions for indoor and outdoor environments.
Keywords :
electromagnetic wave transmission; indoor radio; personal area networks; ultra wideband antennas; ultra wideband communication; waveform analysis; Fresnel regions; Friis transmission formula; UWB signals; antennas; free space propagation loss; transmission signal waveform; ultra wideband impulse radio; waveform distortion; wireless personal area networks; Antenna measurements; Antennas and propagation; Frequency measurement; Receiving antennas; Space technology; Transfer functions; Transmitting antennas; Ultra wideband antennas; Ultra wideband technology; Wireless personal area networks;
Conference_Titel :
Computer and Communication Engineering, 2008. ICCCE 2008. International Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4244-1691-2
Electronic_ISBN :
978-1-4244-1692-9
DOI :
10.1109/ICCCE.2008.4580766
