Concealed Target Detection Using S/C Dual-Band Nonlinear Antenna
Year: 2024
Type: article
Abstract: Nonlinear radar systems can detect nonlinear response signals, such as harmonics and intermodulations, generated by nonlinear electronic targets. Typically, nonlinear radar systems use separate antennas for transmit (Tx) and receive (Rx) since they operate at different frequencies. However, to miniaturize the overall system, it is effective to use a dual-band antenna on a single platform. For such antennas, a high isolation between bands is essential to prevent signal interference between the Tx and Rx ports. This paper presents the detection results of nonlinear concealed targets using an S/C dual-band antenna. The proposed system operates at 3 GHz for Tx and 6 GHz for Rx, which corresponds to the second harmonic of the Tx frequency. The detection results using four different targets demonstrate the system’s capability of detecting concealed nonlinear targets.
Authors: Sooyoung Oh, Wonryeol Lee, Sun-Ki Hong
Language: English
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
Award: G4080400115
OpenAlex ID: W4405761487