This paper describes the Integrated Finline Front-end Radar Receivers at Ka
-Band. The Front-receivers developed for Radar applications include combini
ng of finline components on a single MIC substrate with various planar tran
smission lines. The integrated systems so developed have better noise figur
e and control over phase and gain imbalances as compared to discrete compon
ent systems. Two types of Integrated Front-ends Radar receivers are describ
ed here. The developed systems are highly compact and reliable.