Premium
A miniaturized wideband antenna using hybrid L/T‐shaped metasurface structure
Author(s) -
Che Qizhou,
Chen Dongxu,
Che Wenquan
Publication year - 2021
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.32872
Subject(s) - wideband , miniaturization , reflection coefficient , bandwidth (computing) , materials science , optics , microstrip antenna , microstrip , aperture (computer memory) , optoelectronics , electrical impedance , antenna (radio) , capacitor , physics , electrical engineering , acoustics , telecommunications , engineering , voltage , nanotechnology
A novel miniaturized wideband antenna based on a hybrid L/T‐shaped metasurface structure is proposed, which is fed by an aperture coupling through a microstrip line. To realize the miniaturization of the metasurface antenna, the hybrid L/T‐shaped metasurface structure composed of several L‐shaped metal patches and T‐shaped metal patches is firstly presented. By placing the L‐ and T‐ shaped metal patches with an inverted arrangement, the capacitances caused by interdigital‐like capacitors can be introduced accordingly, which can decrease the resonance frequency and then realize obvious size reduction. The fabricated antenna prototype exhibits a wide impedance bandwidth of 44.0% (5.93 ~ 9.28 GHz) with reflection coefficient ≤ −10 dB and peak gain of 6.57 dBi within a compact radiation aperture size of 0.32λ 0 × 0.39λ 0 .