2017
DOI: 10.1002/mmce.21116
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Multi-band pattern reconfigurable Yagi-Uda antenna

Abstract: In this study, novel designs of single‐band and tri‐band pattern reconfigurable antennas are proposed. The design of single‐band pattern reconfigurable antenna is accomplished by the use of varactor diodes with the parasitic elements placed on both sides of the driven conventional printed dipole antenna. By tuning the capacitance of varactor, the antenna operates in four different configurations of radiation pattern which include bi‐directional end‐fire, broadside, and uni‐directional end‐fire radiation patter… Show more

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Cited by 10 publications
(15 citation statements)
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“…3 has a flat radiating gain response with higher value in the passbands when additional parasitic elements are introduced. This is due to the fact that parasitic element I serves as a director and parasitic element II acts as a reflector for the driven dipole . The obtained results show that by introducing parasitic elements, the passband bandwidth, and antenna gain can be effectively improved.…”
Section: Design and Analysismentioning
confidence: 94%
“…3 has a flat radiating gain response with higher value in the passbands when additional parasitic elements are introduced. This is due to the fact that parasitic element I serves as a director and parasitic element II acts as a reflector for the driven dipole . The obtained results show that by introducing parasitic elements, the passband bandwidth, and antenna gain can be effectively improved.…”
Section: Design and Analysismentioning
confidence: 94%
“…PIN diodes are selected as switches to change working states. Designs of single‐band and tri‐band pattern reconfigurable antennas are presented in Reference . The radiation patterns of single‐band antenna can be reconfigured by tuning the capacitance of varactor.…”
Section: Introductionmentioning
confidence: 99%
“…Several methods have been reported in the literatures to realize the pattern reconfigurability, and the most common ways are switching radiators, feed networks, and reflectors . In reference [], by altering two diodes, the radiation pattern of the antenna can be switched between omnidirectional and broadside patterns.…”
Section: Introductionmentioning
confidence: 99%
“…Three different modes of the antenna can be altered in reference [] by changing the feed network, but the biasing circuit is complicated. Pattern reconfigurable antenna designs based on Yagi‐Uda antennas are studied in references . By controlling the diodes to change the equivalent length of the parasitic microstrip stubs, the radiation patterns of the antennas can be altered.…”
Section: Introductionmentioning
confidence: 99%