Sohaib Yaqoob Chaudhry — Papers on Cortexa

arxiveess.SP2026-07-12

An X-Band Monopulse Direction-Finding Receiver Based on a Rat-Race Comparator and a $2\times2$ Antipodal Vivaldi Array

M. Ahmad Nabil, Sohaib Yaqoob Chaudhry, Salman Liaquat

This paper presents the design, fabrication, and experimental validation of a compact monopulse direction-finding (DF) receiver operating in the X-band. The receiver combines a $2 \times 2$ antipodal Vivaldi antenna array with a rat-race (180-degree hybrid) comparator network tha…

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arxiveess.SP2026-07-12

Design and Experimental Validation of a Multiband Cross-Polarization Conversion (CPC) Metasurface for Radar Cross Section (RCS) Reduction

Sohaib Yaqoob Chaudhry, Malik Muhammad Abdullah, Salman Liaquat, Jamal Haider, Umar Khan, Azhar Hasan

Radar cross-section (RCS) reduction is a fundamental requirement in modern stealth technology, playing a critical role in the low-observable performance of aerial and naval platforms. Among the various passive RCS reduction strategies, including radar-absorbing materials, absorpt…

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