TY - EJOU
AU - Ahmad, Ikhlas
AU - Dildar, Haris
AU - Khan, Wasi Ur Rehman
AU - Ullah, Sadiq
AU - Ullah, Shakir
AU - Albreem, Mahmoud A.
AU - Alsharif, Mohammed H.
AU - Uthansakul, Peerapong
TI - Frequency Reconfigurable Antenna for Multi Standard Wireless and Mobile Communication Systems
T2 - Computers, Materials \& Continua
PY - 2021
VL - 68
IS - 2
SN - 1546-2226
AB - In this paper, low profile frequency reconfigurable monopole
antenna is designed on FR-4 substrate with a compact size of 30 mm3 ×
20 mm3 × 1.6 mm3. The antenna is tuned to four different modes through
three pin diode switches. In Mode 1 (SW1 to SW3 = OFF), antenna covers a
wideband of 3.15–8.51 GHz. For Mode 2 (SW1 = ON, SW2 to SW3 = OFF),
the proposed antenna resonates at 3.5 GHz. The antenna shows dual band
behavior and covers 2.6 and 6.4 GHz in Mode 3 (SW1 and SW2 = ON, SW3 =
OFF). The same antenna covers three different bands of 2.1, 5 and 6.4 GHz
when operating in Mode 4 (SW1 to SW3 = ON). The proposed antenna has
good radiation efficiency ranges from 70%∼84%, providing adequate average
gain of 2.05 dBi in mode 1, 1.87 dBi in mode 2, 1.4–1.75 dBi in mode 3 and
1.05–1.56 dBi in mode 4. The achieved impedance bandwidths at respective
frequencies ranges from 240 to 5000 MHz. The Voltage Standing Waves Ratio
(VSWR) of less than 1.5 is achieved for all operating bands. To validate
the simulation results, the proposed antenna is fabricated and experimentally
tested in antenna measurement laboratory. Due to its reasonably small size
and support of multiple bands operation, the proposed antenna can be used
in modern communication systems for supporting various applications such
as fifth generation (5G) mobile and wireless local area networks (WLAN).
KW - Reconfigurable antenna; pin diode; communication systems; 5G; WLAN
DO - 10.32604/cmc.2021.016813