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Low‐profile wideband Fabry‐Perot resonator antenna using artificial magnetic conductor surface
Author(s) -
Tran Huy Hung,
NguyenTrong Nghia,
Nguyen Truong Khang
Publication year - 2019
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.31581
Subject(s) - optics , wideband , ground plane , antenna gain , dielectric resonator antenna , materials science , conductor , radiation pattern , dipole antenna , fabry–pérot interferometer , antenna (radio) , resonator , wavelength , antenna factor , physics , engineering , electrical engineering , composite material
A low‐profile, high gain Fabry‐Perot Resonator antenna with a wide operation bandwidth (BW) is presented in this paper. The proposed design consists of an ellipse‐shaped dipole as a wideband radiating source, which is reflected by an artificial magnetic conductor ground plane to achieve low‐profile structure. The antenna gain can be significantly enhanced by the use of a half‐wavelength‐thick dielectric slab as a partial reflecting surface. Additionally, this dielectric slab also contributes to improving the radiation pattern characteristics of the proposed design, especially in the high frequency region. A final prototype with an overall size of 1.2 λ L × 1.2 λ L × 0.4 λ L ( λ L is free‐space wavelength at the lowest frequency of 3‐dB gain BW) has been fabricated to validate the concept. The measured results show that the proposed antenna yielded a wide 3‐dB gain BW of approximately 50.3% with a peak gain of 14 dBi and impedance matching BW of 48.9%.