Title :
A feature of rice husk as an antenna absorber
Author :
Jamlos, M.F. ; Kahar, N.F. ; Jusoh, M. ; Saad, P. ; Malek, M.F.
Author_Institution :
Sch. of Comput. & Commun. Eng., Univ. Malaysia Perlis (UniMAP), Kangar, Malaysia
Abstract :
The rice husk is investigated as an absorber of RF signals produced by hybrid antennas in this research. The fabricated element plank of rice husk is placed between the feed line of the beam shaping antenna and radiating element of the beam steering antenna. Beam shaping antenna is activated by particular PIN diode switches to radiate with four well-developed multi-formities of beam shaping radiation patterns. The patterns contain the gain of 3.6 dB, 7.2 dB, 9.9 dB and 14.64 dB with HPBW of 135°, 85°, 35° and 25° respectively. It is proven that the signal reliability is paramount since the system could self-elucidate the mutual coupling effects with the aid of rice husk element plank. Through the deployment of green technology RF absorber, the antenna is potentially an effective way to decrease the number of drop outs, lost connections and provides larger coverage.
Keywords :
absorbing media; antenna feeds; antenna radiation patterns; beam steering; PIN diode; RF signal absorber; antenna absorber; beam shaping antenna; beam shaping radiation patterns; beam steering antenna; fabricated element plank; feed line; four well-developed multiformities; gain 14.64 dB; gain 3.6 dB; gain 7.2 dB; gain 9.9 dB; green technology RF absorber; hybrid antennas; mutual coupling effects; radiating element; rice husk element plank; signal reliability; Antenna radiation patterns; Beam steering; Gain; Mutual coupling; Slot antennas;
Conference_Titel :
Antenna Technology (iWAT), 2012 IEEE International Workshop on
Conference_Location :
Tucson, AZ
Print_ISBN :
978-1-4673-0036-0
DOI :
10.1109/IWAT.2012.6178665
