3 papers indexed
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…
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…
Abeer Nasir Chaudhry, Salman Liaquat, Hasan Saeed Mir
Minimal-array time-difference-of-arrival (TDoA) localization with three planar receivers reduces to a scalar quadratic whose two roots can both be feasible target positions, leaving a branch-selection ambiguity intrinsic to the minimal geometry. Because a minimal array is the che…