Dual-Mode Resonant Sectorial Monopole Antenna with Stable Backfire Gain  

作　　者：Feiyan JI Heng ZHANG Xiuqiong XING Wenjun LU Lei ZHU 

机构地区：[1]Jiangsu Key Laboratory of Wireless Communications,Nanjing University of Posts and Telecommunications,Nanjing 210003,China [2]Key Laboratory of Wireless Sensor Network&Communication,Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai 200050,China [3]Department of Electrical and Computer Engineering,Faculty of Science and Technology,University of Macao,Macao SAR,China

出　　处：《Chinese Journal of Electronics》2024年第6期1478-1486,共9页电子学报（英文版）

基　　金：supported by the National Key Research and Development Program of China(Grant No.2021YFE0205900);the Key Technologies R&D Program of Jiangsu(Prospective and Key Technologies for Industry)(Grant Nos.BE2022067,BE2022067-2,and BE2022067-1)。

摘　　要：A novel design approach to wideband,dual-mode resonant monopole antenna with stable,enhanced backfire gain is advanced.The sectorial monopole evolves from a linear,0.75-wavelength electric prototype monopole under wideband dual-mode resonant operation.As theoretically predicted by the two resonant modes TE3/5,1and TE9/5,1within a 150°radiator,the operation principle is revealed at first.As have been numerically demonstrated and experimentally validated at 2.4-GHz band,the designed antenna exhibits a wide impedance bandwidth over 90.1%(i.e.,2.06–5.44 GHz),in which the stable gain bandwidth in the backfire,-x-direction(θ=90°,φ=180°)with peak value of 3.2 dBi and fluctuation less than 3 dB is up to 45.3%(i.e.,3.74–5.44 GHz).It is concluded that the stable wideband backfire gain frequency response should be owing to the high-order resonant mode in the unique sectorial monopole antennas.

关 键 词：Dual-mode resonance BACKFIRE WIDEBAND Monopole antenna 

分 类 号：TN820[电子电信—信息与通信工程]