TY - JOUR
T1 - Directive multiband antenna based on rectangular loop array and dumbbell-shaped slot radiator
AU - Tirado-Mendez, Jose Alfredo
AU - Jardon-Aguilar, Hildeberto
AU - Flores-Leal, Ruben
AU - Vasquez-Toledo, Luis Alberto
AU - Rangel-Merino, Arturo
AU - Marcelin-Jimenez, Rricardo
AU - Rodriguez-Colina, Enrique
AU - Pascoe-Chalke, Michael
N1 - Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2021/11/1
Y1 - 2021/11/1
N2 - In this article, a combination of rectangular loop array and slot radiator for multiband applications is presented. The antenna is configured by arranging, concentrically, a set of rectangular loop radiators excited by electromagnetic coupling provided by a dumbbell slot. The size of the loops is calculated to obtain the desired resonant frequencies, which are almost independent of the adjacent rings. The exciting slot is designed to operate in a wideband frequency range to cover the upper desired resonance. In addition, to obtain directive radiation patterns, a reflector shaped like a box is introduced, giving a stable gain, radiation pattern shape, and port matching at the selected frequencies. The configuration presents great results, since to the authors’ knowledge, even a similar configuration given in the open literature presents some disadvantages compared to this one; moreover, not just any structure can be employed as the resonating elements, obtaining multiband behavior at the same time.
AB - In this article, a combination of rectangular loop array and slot radiator for multiband applications is presented. The antenna is configured by arranging, concentrically, a set of rectangular loop radiators excited by electromagnetic coupling provided by a dumbbell slot. The size of the loops is calculated to obtain the desired resonant frequencies, which are almost independent of the adjacent rings. The exciting slot is designed to operate in a wideband frequency range to cover the upper desired resonance. In addition, to obtain directive radiation patterns, a reflector shaped like a box is introduced, giving a stable gain, radiation pattern shape, and port matching at the selected frequencies. The configuration presents great results, since to the authors’ knowledge, even a similar configuration given in the open literature presents some disadvantages compared to this one; moreover, not just any structure can be employed as the resonating elements, obtaining multiband behavior at the same time.
KW - Antenna array
KW - Directive antenna
KW - Multiband antenna
KW - Resonant loop
KW - Slot radiator
UR - http://www.scopus.com/inward/record.url?scp=85118588487&partnerID=8YFLogxK
U2 - 10.3390/s21217082
DO - 10.3390/s21217082
M3 - Artículo
C2 - 34770389
AN - SCOPUS:85118588487
SN - 1424-8220
VL - 21
JO - Sensors
JF - Sensors
IS - 21
M1 - 7082
ER -