Low-profile and wideband dipole antenna with unidirectional radiation pattern for 5G

作者:An, Wenxing; Hong, Liuyan; Fu, Haipeng*; Ma, Jianguo; Dong, Jiaxiang
来源:IEICE Electronics Express, 2018, 15(13): 20180121.
DOI:10.1587/elex.15.20180121

摘要

A low-profile wideband unidirectional dipole antenna is presented for the 5G operation. Parasitic strips are utilized for broadband impedance matching at a relatively small height of 4.9 mm (0.067 lambda(0), where lambda(0) is the free-space wavelength at the center frequency). The measured results show that an impedance bandwidth of 55.4% is realized, ranged from 2.96 GIL to 5.23 GHz. The proposed antenna is with the merits of stable and symmetric unidirectional radiation patterns, low back-lobes and an average antenna gain of 7 dBi over the operating band, making it very promising for 5G system.