AN EFFICIENT SPICE-BASED TECHNIQUE FOR PERFORMANCE CHARACTERIZATION OF BJT MIXERS

作者：Raut Rabin^*; Devabhaktuni Vijay; Roy Niladri

来源：Journal of Circuits, Systems, and Computers, 2010, 19(6): 1333-1344.

DOI：10.1142/S0218126610006700

• AC analysis
• BJT integrated circuits
• equivalent circuits
• radio-frequency mixers
• SPICE

In this paper, we present a fast and simple SPICE-based technique for the performance characterization of BJT mixers. First, exploiting fundamental concepts, an AC equivalent circuit of a radio-frequency bipolar junction transistor mixer is derived. Second, this equivalent circuit is used to estimate the conversion gain, noise-figure, and nonlinearity characteristics of the mixer. The proposed technique has been validated using simulations on integrated and discrete transistor based mixer circuits.

• 出版日期2010-10