TY - JOUR
T1 - Beamwidth Reconfigurable Magneto-Electric Dipole Antenna Based on Tunable Strip Grating Reflector
AU - Ge, Lei
AU - Luk, Kwai Man
PY - 2016
Y1 - 2016
N2 - A new magneto-electric (ME) dipole antenna with a dynamic beamwidth control in the H-plane is presented. The design methodology uses tunable strip gratings placed on the sides of an ME dipole along its H-plane. Each strip is equally divided into 16 short parts and connected in series by using 15 PIN diodes; accordingly, by controlling the on/off-state of the PIN diodes, the strips can operate as a grating reflector or be transparent for the radiating wave. Therefore, the size of the reflector can be reconfigured, which leads to the tunable beamwidth. A fully functional prototype with an as wide as 40% impedance bandwidth (for SWR ≤ 1.5) is developed and tested, demonstrating the H-plane beamwidth with a tuning range from 81° to 153°. Radiation efficiencies are better than 90% in all the states of operation.
AB - A new magneto-electric (ME) dipole antenna with a dynamic beamwidth control in the H-plane is presented. The design methodology uses tunable strip gratings placed on the sides of an ME dipole along its H-plane. Each strip is equally divided into 16 short parts and connected in series by using 15 PIN diodes; accordingly, by controlling the on/off-state of the PIN diodes, the strips can operate as a grating reflector or be transparent for the radiating wave. Therefore, the size of the reflector can be reconfigured, which leads to the tunable beamwidth. A fully functional prototype with an as wide as 40% impedance bandwidth (for SWR ≤ 1.5) is developed and tested, demonstrating the H-plane beamwidth with a tuning range from 81° to 153°. Radiation efficiencies are better than 90% in all the states of operation.
KW - beamwidth tunable
KW - Magneto-electric dipole
KW - Reconfigurable antenna
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U2 - 10.1109/ACCESS.2016.2615947
DO - 10.1109/ACCESS.2016.2615947
M3 - RGC 21 - Publication in refereed journal
SN - 2169-3536
VL - 4
SP - 7039
EP - 7045
JO - IEEE Access
JF - IEEE Access
M1 - 7588158
ER -