A 10/24-GHz CMOS/IPD Monopulse Receiver for Angle-Discrimination Radars

A new 10/24-GHz monopulse receiver is developed in this paper. The receiver consists of dual-band or broadband circuits such as low-noise amplifiers, a rat-race coupler, a switch, and mixers. These circuits are fabricated by a standard 0.18- μm CMOS or an integrated passive device (IPD) technology, and are integrated together in a flip-chip form. The overall chip area is 3.8 mm × 3.6 mm. With power consumption of 90.6 mW, the receiver results in 16.5/6.9-dB gain, 9.2/14.6-dB noise figure, -22.3/ -23.7-dBminput P1 dB, and 23.6/21.5-dB sum/difference amplitude ratio in the 10/24-GHz bands. Moreover, the monopulse measurement also demonstrates ±15° angle discrimination in the two bands. To authors' knowledge, this is the first demonstration of an original dual-band CMOS monopulse receiver architecture for angle detection applications.

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