Considering the environmental sustainability,the ceramic substrate is preferred in conventional global navigation satellite system(GNSS)antennas.However,the high-density ceramic increases the antennas'mass,and ban...Considering the environmental sustainability,the ceramic substrate is preferred in conventional global navigation satellite system(GNSS)antennas.However,the high-density ceramic increases the antennas'mass,and bandwidth of the GNSS antenna is narrowed by the high permittivity of ceramic.To solve these issues,a compact,lightweight circularly polarized(CP),transmitting(Tx)and receiving(Rx)integrated antenna was proposed for the lightweight and wide-bandwidth GNSS communications antennas.A hollowing sandwich layer was used to balance the bandwidth and weight performance.By optimizing hollowed dimensions,a lightweight and wide bandwidth GNSS antenna could be achieved.Both Tx-Rx antennas were integrated into a printed circuit board(PCB),minimizing the satellite installation space.Simulations and measurements are conducted.The results show that the operating frequency band around 1.6 GHz(Tx)and around 1.5 GHz(Rx),with realized gains 3 dBi(Tx)and 2.5 dBi(Rx).The total mass of the proposed antenna is around 59 g within a compact space of 50 mm×50 mm×10 mm.The proposed CP GNSS antennas show excellent performance in size,mass,and bandwidth,which can be a potential solution for the micro-nano satellite-ground communications.展开更多
基金funded by Basic Research Program of Jiangsu under grant BK20252030。
文摘Considering the environmental sustainability,the ceramic substrate is preferred in conventional global navigation satellite system(GNSS)antennas.However,the high-density ceramic increases the antennas'mass,and bandwidth of the GNSS antenna is narrowed by the high permittivity of ceramic.To solve these issues,a compact,lightweight circularly polarized(CP),transmitting(Tx)and receiving(Rx)integrated antenna was proposed for the lightweight and wide-bandwidth GNSS communications antennas.A hollowing sandwich layer was used to balance the bandwidth and weight performance.By optimizing hollowed dimensions,a lightweight and wide bandwidth GNSS antenna could be achieved.Both Tx-Rx antennas were integrated into a printed circuit board(PCB),minimizing the satellite installation space.Simulations and measurements are conducted.The results show that the operating frequency band around 1.6 GHz(Tx)and around 1.5 GHz(Rx),with realized gains 3 dBi(Tx)and 2.5 dBi(Rx).The total mass of the proposed antenna is around 59 g within a compact space of 50 mm×50 mm×10 mm.The proposed CP GNSS antennas show excellent performance in size,mass,and bandwidth,which can be a potential solution for the micro-nano satellite-ground communications.
