TY - JOUR
T1 - Miniature dual-band meander-line monopole chip antenna with independent band control
AU - Xia, Zhen-Xing
AU - Leung, Kwok Wa
AU - Lee, Mike W. K.
AU - Yang, Nan
PY - 2019/9
Y1 - 2019/9
N2 - A dual-band monopole chip antenna with an overall size of 5 × 3 × 2.1 mm3 is investigated for 2.4/5.2/5.8 GHz WLAN applications. The chip antenna has three substrates with four copper layers in total. It deploys a modified nonuniform folded meander line and capacitive loading patches to reduce the antenna size. A fundamental monopole mode and a higher order mode are excited to obtain the 2.4 GHz (2.40-2.48 GHz) and 5 GHz (5.150-5.350 GHz and 5.725-5.875 GHz) WLAN bands, respectively. The lower and upper bands can be independently controlled by the widths of the meander lines on the first and third layers, respectively. A prototype was fabricated and measured to verify the idea. A reasonable agreement between the measured and simulated results is observed. The measured 10 dB impedance bandwidths of the lower and upper bands are 5.3% (2.38-2.51 GHz) and 19.3% (5.14-6.24 GHz), respectively, fully covering the 2.4/5.2/5.8 GHz WLAN bands. The measured efficiency of the chip antenna is higher than 60% for the two bands.
AB - A dual-band monopole chip antenna with an overall size of 5 × 3 × 2.1 mm3 is investigated for 2.4/5.2/5.8 GHz WLAN applications. The chip antenna has three substrates with four copper layers in total. It deploys a modified nonuniform folded meander line and capacitive loading patches to reduce the antenna size. A fundamental monopole mode and a higher order mode are excited to obtain the 2.4 GHz (2.40-2.48 GHz) and 5 GHz (5.150-5.350 GHz and 5.725-5.875 GHz) WLAN bands, respectively. The lower and upper bands can be independently controlled by the widths of the meander lines on the first and third layers, respectively. A prototype was fabricated and measured to verify the idea. A reasonable agreement between the measured and simulated results is observed. The measured 10 dB impedance bandwidths of the lower and upper bands are 5.3% (2.38-2.51 GHz) and 19.3% (5.14-6.24 GHz), respectively, fully covering the 2.4/5.2/5.8 GHz WLAN bands. The measured efficiency of the chip antenna is higher than 60% for the two bands.
KW - Chip antenna
KW - dual-band antenna
KW - meander line
KW - monopole antenna
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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85072111482&origin=recordpage
U2 - 10.1109/LAWP.2019.2931986
DO - 10.1109/LAWP.2019.2931986
M3 - RGC 21 - Publication in refereed journal
SN - 1536-1225
VL - 18
SP - 1873
EP - 1877
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
IS - 9
M1 - 8781919
ER -