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![Figure 2. A combline, band pass filter [2]](profile/Mohammed-Lahsaini/publication/349773945/figure/fig2/AS:997739760451585@1614891104574/A-combline-band-pass-filter-2_Q320.jpg)
This paper describes a procedure for designing broadband low noise amplifier for X-Band applications. The design and implementation are based on HEMT transistors AFP02N2-00 of Alpha Industries®. The matching circuit used for modeling the microwave amplifier is the quarter-wave transformers impedance matching technique associated to combline bandpas...
Balanced amplifier is the structure proposed in this article, it provides better performance. In fact, the single amplifier meets the specification for noise figure and gain but fails to meet the return loss specification due to the large mis-matches on the input & outputs. To overcome this problem one solution is to use balanced amplifier topograp...
p>Balanced amplifier is the structure proposed in this article, it provides better performance. In fact, the single amplifier meets the specification for noise figure and gain but fails to meet the return loss specification due to the large mis-matches on the input & outputs. To overcome this problem one solution is to use balanced amplifier topogr...
![Fig. 1. Geometry of the microstrip transmission [8]](profile/Mohammed-Lahsaini/publication/282851710/figure/fig1/AS:296558110232579@1447716371258/Geometry-of-the-microstrip-transmission-8_Q320.jpg)
![Fig. 2. Electric and magnetic field lines [8]](profile/Mohammed-Lahsaini/publication/282851710/figure/fig2/AS:296558110232582@1447716371286/Electric-and-magnetic-field-lines-8_Q320.jpg)
![Fig. 5. Quarter wave transformers [1]](profile/Mohammed-Lahsaini/publication/282851710/figure/fig5/AS:296558110232592@1447716371565/Quarter-wave-transformers-1_Q320.jpg)
Low noise amplifier (LNA) constitutes one of the essential component in wireless communication systems. It is used especially for designing different types of communication receivers. The main function of LNA is to provide sufficient gain to overcome noise of other blocks. Amplifier design requires a matching circuit of impedance to have a low nois...
