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Design of a compact dense dielectric patch antenna based on half‐cut technique
Author(s) -
Wang XueYing,
Tang ShiChang,
Qin Wei,
Chen JianXin
Publication year - 2019
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.21906
Subject(s) - ground plane , antenna (radio) , patch antenna , dielectric , optics , coupling (piping) , excited state , aperture (computer memory) , microstrip antenna , acoustics , physics , materials science , optoelectronics , electrical engineering , engineering , atomic physics , metallurgy
In this article, a half‐cut rectangular dense dielectric patch (DDP) with one grounded side plane is theoretically investigated for designing a compact low‐profile antenna. According to the properties and the E‐field distribution of the dominant TM 101 mode, the half‐wavelength ( λ /2) DDP can be bisected by effectively shorting the center plane to the ground, resulting in a miniaturized half‐cut λ /4 DDP. The size of the DDP is effectively reduced by 50% while maintaining the original resonant frequency of the dominant TM 101 mode. The half‐cut λ /4 DDP can be well excited through aperture coupling for antenna design. The design procedure of the proposed antenna is given in detail. For demonstration, an antenna prototype centered at 4.15 GHz is implemented and measured. The simulated and measured results are given, showing good agreement.