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X-band 입사파 환경에서 안테나 송신 신호 on/off에 대한 RCS(Radar Cross Section) 성능에 관한 연구
정은태,박진우,유병길,김영담,김기철,서종우,Jung, Euntae,Park, Jinwoo,Yu, Byunggil,Kim, Youngdam,Kim, Kichul,Seo, Jongwoo 한국군사과학기술학회 2020 한국군사과학기술학회지 Vol.23 No.1
Many technologies are being studied to reduce the RCS(Radar Cross Section) of stealth aircraft. Most RCS-reduction technlogies correspond to platforms. It is important to identify factors that RCS performance through simulation analysis of aircraft Mounted equipment. In particular, there are no studies of RCS performance in the radar frequency band when antenna transmit signals are applied. In this paper, the RCS performance variation on the transmit signal on/off of antennas mounted on a stealth aircraft was verified. Antennas were selected for each frequency band and simulated analysis to the RCS performance changes during antenna transmitting signal. Finally, to verify the characteristics of the change in RCS performance, RCS test measurements on the low-profile antenna transmit signal on/off were performed. In addintion, antenna RCS test measurement was performed according to the change of transmit signal power output. As a result, it was confirmed that there is no change in RCS performance when an antenna transmit signal is applied.
박진우,유병길,정은태,박일현,서종우,정재수,Park, Jinwoo,Yu, Byunggil,Jung, Euntae,Park, Ilhyun,Seo, Jongwoo,Jung, Jaesoo 한국군사과학기술학회 2021 한국군사과학기술학회지 Vol.24 No.5
In this paper, an array antenna for LOS datalink for mounting UAV(Unmanned Aerial Vehicle) of low-probability of intercept is presented. For low RCS, radome was designed by conformal form, and other components were inserted into the UAV. The antenna of the transmitter and receiver are each composed of 12×12 array antennas, and include a beam steering function by controlling the phase of the unit element for the Uni-directional pattern and the Bi-directional pattern. As a result of the measurement of the manufactured antenna, it was confirmed that all the required specifications were met, and the installing possibility of the UAV platform on low-probability of intercept in the future was confirmed.