TY - JOUR
T1 - Compact Super Wideband Frequency Diversity Hexagonal Shaped Monopole Antenna with Switchable Rejection Band
AU - Faouri, Yanal
AU - Ahmad, Sarosh
AU - Naseer, Salman
AU - Alhammami, Khalid
AU - Awad, Noor
AU - Ghaffar, Adnan
AU - Hussein, Mousa I.
N1 - Publisher Copyright:
© 2013 IEEE.
PY - 2022
Y1 - 2022
N2 - To reduce interference from other wireless communications, a compact super wideband frequency diversity hexagonal shaped monopole antenna with switchable rejection band capabilities is proposed. The patch consists of hexagonal structure with an open-ended horizontal slot that divides the patch into upper and lower parts. The overall size of the proposed antenna is 36 mm \times\,\,36 mm \times\,\,1.6 mm on an FR-4 substrate material with a loss tangent of tan\delta = 0.02. The notch switchable features and the frequency diversity are controlled by changing the length of the resonator through alternating the state of two inserted parallel PIN diodes inside the horizontal open-ended slot. The upper part of the hexagonal patch is connected to the negative terminal of the diodes and the biasing circuit in the back layer through a conducting via. The lower part is connected to the positive terminal of the diode. When both diodes are OFF, the proposed antenna behaves as a super wideband covering a bandwidth from 3.37 GHz to 27.71 GHz. When both diodes are ON, there is a band notch and a frequency a frequency band (3.81-6.62 GHz) is filtered. The antenna's radiation pattern is broadsided directional, and the efficiency is observed 92.9% and 96% for the ON and OFF cases, respectively. The reflection coefficient ( S{11} ) at the rejection band is-3.06 dB at 5.38 GHz. Hence, the proposed super wideband antenna is well-suited for applications in wireless communications.
AB - To reduce interference from other wireless communications, a compact super wideband frequency diversity hexagonal shaped monopole antenna with switchable rejection band capabilities is proposed. The patch consists of hexagonal structure with an open-ended horizontal slot that divides the patch into upper and lower parts. The overall size of the proposed antenna is 36 mm \times\,\,36 mm \times\,\,1.6 mm on an FR-4 substrate material with a loss tangent of tan\delta = 0.02. The notch switchable features and the frequency diversity are controlled by changing the length of the resonator through alternating the state of two inserted parallel PIN diodes inside the horizontal open-ended slot. The upper part of the hexagonal patch is connected to the negative terminal of the diodes and the biasing circuit in the back layer through a conducting via. The lower part is connected to the positive terminal of the diode. When both diodes are OFF, the proposed antenna behaves as a super wideband covering a bandwidth from 3.37 GHz to 27.71 GHz. When both diodes are ON, there is a band notch and a frequency a frequency band (3.81-6.62 GHz) is filtered. The antenna's radiation pattern is broadsided directional, and the efficiency is observed 92.9% and 96% for the ON and OFF cases, respectively. The reflection coefficient ( S{11} ) at the rejection band is-3.06 dB at 5.38 GHz. Hence, the proposed super wideband antenna is well-suited for applications in wireless communications.
KW - PIN diodes
KW - Super wideband
KW - frequency reconfigurable
KW - notch characteristics
KW - time-domain analysis
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U2 - 10.1109/ACCESS.2022.3167387
DO - 10.1109/ACCESS.2022.3167387
M3 - Article
AN - SCOPUS:85128326595
SN - 2169-3536
VL - 10
SP - 42321
EP - 42333
JO - IEEE Access
JF - IEEE Access
ER -