Abstract
An experimental evolution of the imaging detection system's 57–64 GHz ISM-band probe for security checkpoint applications is presented. The Dual-polarized antipodal Fermi tapered slot antenna with sin-corrugation (DP-AFTSA-SC) is a low profile microstrip probe that is lightweight, high gain and broadband, and achieves a good standard MMW image. The DP-AFTSA-SC antenna is employed as a sensor. Its performance is compared with the standard gain horn (SGH) for use in imaging/detection systems with a short pulse based on time domain reflectometry (TDR) generated by a PNA network analyzer. The targets are placed on material emulating the human body. The image is reconstructed using a 2D linear scanning platform with a cross range resolution achieving a 100 × 100 pixel image. Resolutions for reconstructed images scanned with the proposed low profile DP-AFTSA-SC probe are of similar quality to those generated using the SGH antenna.
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