Reviews of High Image Rejection Up and Down Converters for Next-Generation Satellite Applications

In this paper, a review of high image rejection up-or down-converters is presented. Next-generation satellite applications need high uplink and downlink speeds, so a broadband design with a low image rejection ratio is important. By using a 0.18 μm CMOS single-quadrature architecture, this paper presents a 28-30GHz up-converter with a low-IF frequency range of 1.2 GHz and an IRR of <;-38 dBc. Also presented is a 17-21 GHz down-converter with a low-IF frequency range of 2.2 GHz and a <;-40 dBc IRR.