This paper investigates the performance of a frequency-sweeping steering notch beam implemented with a simple two-element antenna array operating within the frequency range of 238 to 248 GHz. We assess the performance of this minimalistic scanning notch beam antenna array for three single-target measurement scenarios, comparing the effectiveness of different algorithms, including IFFT, FISTA, and MUSIC. The results demonstrate that the MUSIC algorithm achieves a range resolution of 13.5 mm, surpassing that of both FISTA and IFFT algorithms. Additionally, the steering notch exhibits superior angular resolution, with a resolution better than 9◦ compared to MUSIC and FISTA. This study explores the potential capabilities of this minimalistic radar and optimized signal processing techniques to reduce hardware complexity in radar systems and address evolving demands for cost-effective radar applications.