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Compact multiband dual reconfigurable folded planar monopole antenna
Author(s) -
Abou Alalaa M.,
Elsadek H. A.,
Abdallah E. A.
Publication year - 2015
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.29173
Subject(s) - monopole antenna , microstrip antenna , electrical engineering , ground plane , patch antenna , reconfigurability , reconfigurable antenna , physics , dipole antenna , coaxial antenna , antenna (radio) , optoelectronics , optics , engineering , telecommunications
Compact multiband dual reconfigurable monopole antenna is presented. To achieve frequency and polarization reconfigurability, PIN diodes as well as MEMS switches are used. For frequency reconfigurability, one switch was inserted on the patch side. When this switch is OFF; the antenna operates at four bands 2.45 GHz, 3 GHz, 3.69 GHz, and 5.5 GHz with corresponding impedance bandwidth of 9.95%, 5.96%, 12.57%, and 10.76%, respectively. When the switch is ON; the antenna operates at 2.64 GHz, 3.67 GHz, 4.94 GHz, and 5.3 GHz with impedance bandwidthes of 21.15%, 11.76%, 5.79%, and 4.12%, respectively. L‐shaped slit was inserted in the ground plane to obtain dual polarization at 5.3 GHz and 5.5 GHz bands. Another switch was inserted on this slit to alter between linear and circular polarization. Folded and meandered techniques are used for miniaturize the antenna size. Antenna size is 15 × 37 × 0.8 mm 3 while the radiator part is 15 × 9 × 0.8 mm 3 . The proposed antenna is used in several applications as bluetooth (2400–2484 MHz), WLAN (802.11b/g/n [2.4–2.48 GHz], 802.11y [3.657–3.69 GHz], 802.11y [4.9 GHz], 802.11a/h/j/n [5.2 GHz]), Wi‐MAX (2.5–2.69 GHz), long term evolution (band7, band38, band41, band43), and S‐DMB (2605–2655 MHz). The antenna is analyzed using the CST Microwave Studio software package. The proposed antenna was fabricated and tested. Measurements and simulations show good agreement in most cases. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1557–1565, 2015