## Abstract In this study, a novel transmission line configuration has been proposed to design a sharpβrejecting, compact bandstop filter with wide rejectionβbandwidth. Signal interference technique is used to obtain transmission zeros, which provide the sharp rejection characteristic. Rejection ba
Design and optimization of LNA topologies with image rejection filters
β Scribed by Abbas Golmakani; Khalil Mafinejad; Abbas Kouzani
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 920 KB
- Volume
- 20
- Category
- Article
- ISSN
- 1096-4290
No coin nor oath required. For personal study only.
β¦ Synopsis
An important problem in designing RFIC in CMOS technology is the parasitic elements of passive and active devices that complicate design calculations. This article presents three LNA topologies including cascode, folded cascade, and differential cascode and then introduces image rejection filters for low-side and high-side injection. Then, a new method for design and optimization of the circuits based on a Pareto-based multiobjective genetic algorithm is proposed. A set of optimum device values and dimensions that best match design specifications are obtained. The optimization method is layout aware, parasitic aware, and simulation based. Circuit simulations are carried out based on TSMC 0.18 lm CMOS technology by using Hspice. V
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