A Ku-Band Magnified Active Tx/Rx Multibeam Antenna Based on a Discrete Constrained Lens

Electronics

Giovanni Toso¹  Gianfranco Ruggerini²  Pasquale Giuseppe Nicolaci³ 

[1] Antenna and Sub-Millimeter Waves Section, European Space Agency, ESTEC, 2200 AG Noordwijk, The Netherlands;ST4I Space Technologies for Innovation, 00131 Rome, Italy;TICRA, DK-1119 Copenhagen, Denmark;

关键词: active antennas;    discrete lens antennas;    transmit (Tx) and receive (Rx) antennas;    confocal antennas;    multibeam antennas;    Ku-band satellite antennas;   

DOI  :  10.3390/electronics10222824

来源: DOAJ

【 摘 要 】

This paper presents the design, manufacturing, and testing of a Ku-band magnified active Tx/Rx multibeam antenna based on a discrete constrained lens. Multibeam antennas based on constrained lenses generate a significant number of beams on a large operative frequency bandwidth. The main novelty and challenge in this development are associated with the combined transmitting and receiving functionality of this active array. An innovative RF building blockchain working in dual-polarization and covering both the transmitting and receiving bandwidth is successfully implemented. In order to improve the accommodation constraints and the thermal control, the active lens is magnified by two confocal paraboloidal reflectors. To validate the design procedure, experimental results are compared with numerical ones.

【 授权许可】

Unknown