In this study, design and simulation of 15GHZ and 10GHZ Low Noise Amplifiers (LNA) have been explored. The simulation has been performed by using the Agilent Advanced Design System (ADS) Software. Tuning and optimization tools of ADS software have been used to optimize results. The minimum Noise Figure (NF min) of the High Electron Mobility Transistor (HEMT) device in our simulation, is lower than previous works. We have designed a 15GHZ LNA based on three design methods basing on the lumped, the distributed and the radial stub elements. The scattering parameters of 15GHZ designed amplifier in the following manner, input return loss (S11), output return loss (S22), forward gain (S21), and isolation (S12) are-17.15dB,-16.92dB and 14.35dB as follow as-17.023 dB, respectively. Furthermore, noise figure of the 15GHZ designed amplifiers is 0.92 dB. Furthermore, the simulation results show that the scattering parameters and noise figure of 10GHZ LNA amplifiers are improved noticeably with respect to the previous works.
In this paper, design and simulation of a 10 GHz Low Noise Amplifier (LNA) for Wireless communication systems have been explored. The simulation result has been performed by using the Agilent Advanced Design System (ADS) software. Tuning and optimization tools of ADS software have been used to optimize results. The High Electron Mobility Transistor (HEMT) based on GaN is used for decreasing of Minimum Noise Figure (NFmin) of LNA. Also, for more decreasing NFmin of LNA radial stub elements are implemented in biasing network. We have designed a 10 GHz LNA based on three design manner basing on the lumped, the distributed and radial stub elements. The designed amplifier offers forward gain of 15.72 dB with the noise figure of 1.09 dB at 10 GHz. The input return loss (S11) is equal to-9.635 dB at 10GHz. The output return loss (S22) is equal to-10.009 dB at 10GHz. Also, the isolation (S12) of proposed structure is equal to-22 dB at 10 GHz. The simulation result have shown that the forward gain and noise figure of 10 GHz LNA are optimized noticeably with respect to the pervious works.
In this paper, we introduce the application of a microfluidic separator for detection and focusing of two different bioparticles with an integrated method utilizing acoustic and dielectrophoretic (DEP) force. In order to improve separation efficiency, we have integrated two different manipulation techniques. The separator designed and simulated relay on the combination of long-range acoustic waves and short-rang dielectrophoretic forces. The DEP manipulation is generated by an DC or AC non-uniform electronic field, while, acoustic force created using IDTs (Inter Digitated Transducers) patterned on a piezoelectric substrate such as Linbo3 (Lithium Niobate) to generate standing surface acoustic waves. The generated waves move through the PDMS (Polydimethylsiloxane) microchannel located between two same IDTS. We have two different separation steps. In the first step, particles will face with acoustic force to be focused in midline of the microchannel. In the second step, focused particles, will separated with a non-uniform electric field generated by metric 3D electrodes of Al (Aluminum) mold to the channel wall. These particles will separate and move to the different outlets. First kind of particles have a different manner of the second ones based on differ of their electrical properties. We counted the number of particles in the two different outlets at the end of separating process. Particles numbers showed a well separation efficiency. The method mentioned above is a process that that is enough flexible to utilize in a variety of applications especially in biological purposes.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.