Search

The article focuses on a general synthesis method of designing resistorless nth-order current-mode universal filters of radio frequency (RF) or microwave systems. They can provide different filter responses including bandpass, high pass, low pass, bandstop and all-pass without altering the topology. Based on current differencing trans conductance amplifier (CDTA), they are assembled to suit integrated-circuit (IC) processes.

The article focuses on the benefits of using the low-noise amplifier, a broadband amplifier, in the operation of the ultrawideband (UWB) communications systems. The broadband amplifier has been viewed efficient to cover the UWB frequency range form 3.1 to 10.6 Gigahertz with low noise figure. The LNA has been designed for the receiver with low DC power consumption.

The article focuses on low-noise amplifiers (LNAs). It is stated that multiple communications standards could be served by LNAs by merit of its low noise figure. It is noted that to suppress interference and maintain good receiver sensitivity, high linearity is important in an LNA. It is mentioned that semiconductor process in which all required components can be integrated is the basis of the LNA.

The article reports that a fully integrated differential low-noise amplifier (LNA) has been designed with an interstage LC parallel tank circuit with common-gate (CG) and common-source (CS) transistors. It consumes 34.3 mW from a +1-VDC supply and achieves peak gain of 23.8 dB and minimum noise figure of 3 dB with -3.8 dBm output power.