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A dipole‐type millimeter‐wave antenna with directional radiation characteristics
Author(s) -
Dong Yue,
Li Yingsong,
Sim ChowYenDesmond,
Xia Yinfeng,
Liu Xiaoguang
Publication year - 2020
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.22059
Subject(s) - radiation pattern , extremely high frequency , radiation , optics , bandwidth (computing) , dipole antenna , patch antenna , dipole , antenna gain , materials science , antenna (radio) , acoustics , antenna efficiency , physics , electrical engineering , telecommunications , computer science , engineering , quantum mechanics
A dipole‐type millimeter‐wave (mm‐wave) antenna with directional radiation characteristics is presented. A radiating patch structure composed of a dipole‐type radiation patch and a rectangular‐shaped parasitic patch are initially investigated to achieve a wider bandwidth. To further improve the operating bandwidth and to realize a directional radiation characteristic, this radiating patch structure is top‐loaded above a conducting cavity‐backed ground structure, which has a low profile (thickness of 3 mm). The measured results show that the proposed mm‐wave antenna can achieve a wide 10‐dB bandwidth of 51.3% (29.6‐50.0 GHz) and stable gain across the desired frequency range. Furthermore, good directional characteristics over the entire mm‐wave frequency band with a compact antenna size of 0.64λ 40GHz × 0.91 λ40GHz × 0.43 λ40GHz are also realized. Hence, it is suitable for many small size wireless mm‐wave systems.