Abstract
This article has described the development of a 5.8-GHz microwave Doppler radar. The radar system's detection capability has been demonstrated under the testing environment diagrammed in the paper. To receive the maximum scattered field from the moving metallic target, the Tx and Rx ports of the radar module share a single antenna array using a PCB-based isolation device to realize a monostatic radar architecture. Due to the radar's operating frequency of 5.8 GHz, the minimum detectable motion range of the developed radar is limited to 100 nm. In the future, a higher operating frequency, such as 24 GHz, could be chosen to obtain a smaller detectable motion range.
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