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- Title
A compact broadband antenna for ultra high frequency and L band on 5G new radio base stations.
- Authors
Cui, Yuehui; Tu, Zhenxing; Qin, Yue; Li, RongLin
- Abstract
A simple method is proposed for the realisation of compact dual‐polarised antennas. The aperture area of a dual‐polarised dipole antenna can be reduced by half by surrounding the antenna with a square loop. Based on the method, a broadband compact dual‐polarised antenna is developed. The broadband dual‐polarised antenna consists of two ±45°‐polarised dipoles surrounded by a square loop and fed by two orthogonal broadband baluns. A resonance at a sfrequency (fLr = 0.7 GHz) is created by the square loop, leading to a compact size of about λLr/4 × λLr/4, where λLr is the wavelength in free space at fLr. Another resonance at a higher frequency (fHr = 1.5 GHz) is generated by etching open slots on the ±45°‐polarised dipoles. A combination of the lower‐frequency and the higher‐frequency resonances results in a broadband operation. Simulation and experimental results show that the compact dual‐polarised antenna achieves an impedance bandwidth of 75% (0.69–1.52 GHz) for return loss > 15 dB with stable radiation patterns, which is potential to be used for 5G new radio base‐station applications.
- Subjects
UHF antennas; SHORTWAVE radio; RADIO stations; ANTENNAS (Electronics); LOOP antennas; BROADBAND antennas; 5G networks; DIPOLE antennas
- Publication
IET Microwaves, Antennas & Propagation (Wiley-Blackwell), 2023, Vol 17, Issue 5, p361
- ISSN
1751-8725
- Publication type
Article
- DOI
10.1049/mia2.12343