scholarly journals Small-Signal Analysis of Common-Gate Amplifier for RF Applications

2020 ◽  
pp. 20-24
Author(s):  
Frederick Ray I. Gomez
Keyword(s):  
Frequency Response ◽  
Signal Analysis ◽  
Effective Bandwidth ◽  
Small Signal ◽  
Maximum Frequency ◽  
Analysis And Design ◽  
Small Signal Analysis ◽  
Common Gate ◽  
Rf Applications ◽  
Design Tradeoffs

The paper presents a study of common-gate amplifier focused in small-signal analysis. Small-signal or frequency response of the amplifier determines the maximum frequency of operation and the effective bandwidth of the circuit. With the analysis, the circuit could be modeled and designed to achieve gain at the desired frequency of operation. Design tradeoffs are inevitable and are carefully considered in the analysis and design, for radio frequency (RF) applications.

scholarly journals AC Analysis of Differential Active Balun Topology

2020 ◽  
pp. 1-5
Author(s):  
Frederick Ray I. Gomez
Keyword(s):  
Complementary Metal Oxide Semiconductor ◽  
Cmos Technology ◽  
Oxide Semiconductor ◽  
Effective Bandwidth ◽  
Small Signal ◽  
Analysis And Design ◽  
Active Balun ◽  
Design Tradeoffs ◽  
Ac Response ◽  
Better Than

The current manuscript aimed to study a differential active balun circuit in terms of the small-signal analysis, implemented in a standard 90-nm complementary metal-oxide semiconductor (CMOS) technology. Small-signal or alternating current (AC) response or frequency response of the active balun determines the maximum frequency of operation and the effective bandwidth of the circuit. With the analysis, the active balun circuit could be modeled and designed to achieve gain or attenuation at the desired frequency of operation. Design tradeoffs are inevitable and are carefully considered in the analysis and design. Eventually, the differential active balun design achieved a gain difference better than 1 dB and a phase difference of 180°±10° or better at the frequency of operation of 5.8 GHz, comparable to previous designs and researches.

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