Open AccessA Ka-band Balanced Feed Antenna with High Selectivity
Author(s) -
Yi Sun
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1607/1/012009
Subject(s) - antenna factor , antenna efficiency , antenna measurement , antenna noise temperature , coaxial antenna , optics , antenna (radio) , radiation pattern , acoustics , physics , computer science , telecommunications
In order to obtain a high-selectivity antenna array, a filter antenna based on balanced feed system is investigated in the paper. The balanced feed structure excites the each sub-array with the same phase and amplitude so that the radiation beam is stable steering to normal direction over the entire working bandwidth. Meanwhile, in order to reduce the overall size of the system and improve the selectivity of the antenna array, the filter will be integrated into the input port of the antenna array. The simulated bandwidth of VSWR less than 1.5 is 28.2 GHz∼31.2GHz, and the maximum gain of the antenna is 16.43 dB.