Frontiers of Information Technology & Electronic Engineering
>> 2022,
Volume 23,
Issue 2
doi:
10.1631/FITEE.2000456
A compact ultra-wideband crossed-dipole antenna for 2G/3G/4G/IMT/5G customer premise equipment applications
Affiliation(s): Key Laboratory of Antennas and Microwave Technologies, Xidian University, Xi'an 710071, China; Huawei Technologies Co., Ltd., Xi'an 710075, China; less
Received: 2020-09-03
Accepted: 2022-02-28
Available online: 2022-02-28
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Abstract
A compact ultra-wideband crossed-dipole antenna is proposed for 2G/3G/4G/IMT/5G customer premise equipment (CPE) applications. The arms of the crossed-dipole antenna are formed by step-shaped patches, and a wideband operation can be realized by properly selecting the order of the step-shaped patches; its bandwidth can be further enhanced by extending the end of crossed dipole downward. Each dipole is excited by a microstrip stub that is directly connected to a coaxial cable. Furthermore, a slotted rectangular parasitic patch is added beneath the crossed dipoles to further support a 5G sub-6-GHz band without additional space cost. The test results for the prototype of the proposed antenna show that the crossed-dipole antenna has a bandwidth of 147.3% (0.77–5.07 GHz) for return loss lower than 10 dB and an isolation higher than 20 dB between two ports.
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