A Compact Broadband Planar Inverted-F Antenna with Dual-Resonant Modes
Source abstract
Abstract
In this paper, a compact broadband planar inverted-F antenna (PIFA) with dual-resonant modes (TM1/2,2 and TM3/2,0) is proposed for 5G applications. By loading a pair of horizontal slots on the patch, the TM3/2,0 mode can be shifted downward and combined with the TM1/2,2 mode, leading to a dual-mode operation. Meanwhile, another pair of slots, which are orthogonal to the previous pair, is introduced to improve the impedance matching of the antenna. Moreover, the substrate with a high dielectric constant is used in this design to achieve a compact antenna size. In order to verify the principle and the design method, an antenna prototype was fabricated and measured. Experimental results show that the PIFA has a good performance with a −10 dB impedance bandwidth of 14.5% (3.17–3.67 GHz), a peak gain of 6.23 dBi, a low cross-polarization level of −17.3 dB, and a compact size of 0.45 × 0.26 × 0.03 λ013 (λ01 is the free-space wavelength at 3.5 GHz). The antenna is predicted to be suitable for 5G terminal applications.
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Research context
OpenAlex topics: Antenna Design and Analysis · Microwave Engineering and Waveguides · Advanced Antenna and Metasurface Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Information Science and Technology, Nantong University, Nantong 226019, China
The Nantong Research Institute for Advanced Communication Technologies, Chongchuan District, Nantong 226019, China
Funding
National Natural Science Foundation of China · National Natural Science Foundation of Jiangsu · Qing Lan Project of Jiangsu Province · State Key Laboratory of Millimeter Waves (Nanjing)
References (34)
Show source-provided references
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