Title :
A novel absorb/transmit FSS for secure indoor wireless networks with reduced multipath fading
Author :
Kiani, Ghaffer I. ; Weily, Andrew R. ; Esselle, Karu P.
Author_Institution :
Dept. of Electron., Macquarie Univ., Sydney, NSW, Australia
fDate :
6/1/2006 12:00:00 AM
Abstract :
A novel absorb/transmit frequency selective surface (FSS) is presented for 5-GHz wireless local area network (WLAN) applications. The novelty of the design is that it is capable of absorbing, as opposed to reflecting, WLAN signals while passing mobile signals. The FSS consists of two layers, one with conventional conducting cross dipoles and the other with resistive cross dipoles. The absorption of the WLAN signal is important to reduce additional multipaths and resultant fading otherwise caused by the FSS. The structure has good transmission characteristics for 900/1800/1900-MHz mobile bands and performs well for both horizontal and vertical polarizations. The distance between the two layers is less than a quarter free-space wavelengths. Theoretical and experimental results are presented.
Keywords :
fading channels; frequency selective surfaces; indoor radio; mobile radio; multipath channels; radiowave propagation; telecommunication security; wireless LAN; 1800 MHz; 1900 MHz; 5 GHz; 900 MHz; WLAN signals; absorb/transmit FSS; absorb/transmit frequency selective surface; horizontal polarizations; mobile bands; reduced multipath fading; resultant fading; secure indoor wireless networks; vertical polarizations; wireless local area network; Absorption; Buildings; Communication system security; Fading; Filters; Frequency selective surfaces; Polarization; Signal design; Wireless LAN; Wireless networks; Frequency selective surface (FSS); multipath fading; security; wireless local area network (WLAN); wireless network;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2006.875589
