• Prakash Chandra Meshram
• Ajay Kumar Jain
• Ashok Kumar Sagar

Due to its unique properties, the THZ regime of electromagnetic spectrum is rich in new possibilities for a variety of applications, including wireless communication, imaging, non-destructive testing, security scans, and process control. The unique features of THZ waves are its nonionized radiation, superior resolution than microwaves, unique spectral absorption, and ability to pass through dielectrics. Spectroscopy with high spectral resolution at frequencies in the THZ region is an influential analytical instrument for examining the structure and energy levels of molecules and atoms. While THZ spectroscopy may be used to recognize explosive and illegal drugs, THZ radiation is covered as it can be transmitted quickly by materials such as plastics, paper products, luggage, clothing, and other non- conductive materials. It uses simple synthesis techniques to determine the physical parameters of PCDA with FSS. Thin overload is also used under the dipole antenna to improve antenna radiation efficiency, which also contributes to the overall efficiency of PCDA. This means that the antenna can withstand high voltages. Additionally, bending illumination imaging is required to design antennas with wavelengths. As a result, the antenna design is compact. Additionally, silicon lenses in built antenna configurations allow focusing on beams focused in the desired direction. Additionally, the proposed PCDA using silicon lenses improves the antenna output. This can be useful for THZ acquisition and image applications such as: Using the proposed simple PCDA and thin super-straight and silicon lenses, we achieved a direct 10.7 dBi of 91.59% at both the E and H levels and radiation efficiency.

Keywords: Frequency Selective Surface (FSS), Photoconductive Dipole Antennas (PCDA), Terahertz (THZ)

"DELINEATION OF MINOR-SPACE PHOTOCONDUCTIVE DIPOLE ANTENNA FOR TERAHERTZ VISUALIZATION ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 5, page no.h864-h868, May-2025, Available :http://www.jetir.org/papers/JETIR2505889.pdf

"DELINEATION OF MINOR-SPACE PHOTOCONDUCTIVE DIPOLE ANTENNA FOR TERAHERTZ VISUALIZATION ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 5, page no. pph864-h868, May-2025, Available at : http://www.jetir.org/papers/JETIR2505889.pdf