A 12GHz Band Low Noise Block for Satellite Receiver Development with 0.18µm CMOS Process

Abstract

This paper presents a Ku-band low-noise block that includes a PLL with very low susceptibility to power supply in a 0.18µm CMOS technology. The front-end down-converts the input signal from the Ku-band (12∼18GHz) to the IF (∼2.1GHz). The fully integrated LNB is dedicated to both satellite receivers and microwave link products. The VCO that includes full differential varactor shows a very low supply sensitivity (Kpss=-0.18 [%/V]) that can eliminates on chip voltage regulator. The LNB performances include 28.2dB gain, -19.3dBm IIP3, 2.5dB NF, and -107dBc/Hz phase noise at 1MHz offset. The front-end consumes 364mW from a 1.8V supply. The core size is about 0.95×2.3 [mm²].