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26 Threads found on Design Noise Amplifiers
Dear sir myself maulik patel research scholar want to design low noise amplifier design using bjt in l band. So please guide me how to setup the bias network, matching and all other design parameters in ads as well as its mathematical analysis.
I'm trying to make a design using a SiC FET that has ringdown in the 10s of kHz. You mean MHz? Piezoelectric effects of high permittivity ceramic capacitors is mainly a problem of creating audible noise, and unwanted signals in low noise amplifiers. No problem with digital circuits, neither with high frequent power (...)
Hi I would like to know waht is the advantage of converting voltage to current in low noise transconductance amplifier when in traditional LNA design output is measured in terms of voltage only.
I have following clarification about P1 dB compression point (1) What is the significance of P1 dB compression for the design of low noise Amplifier. (2) What message P1dB compression point conveys to us. (3) What is its importance in the design of Low noise amplifier. (4) P1 dB compression point, how it is different (...)
If you are not using the amplifier in a radar design, is not worth to bother about its phase noise, because there are many other parameters that breaks before failing the system phase noise.
i want to design 10GHz problem is i don't what the first step i need to do or i need to know...please help me... thank you...
Please try "Analysis and design of Analog Integrated Circuits" by P.Gray...
In GSM, the 217Hz is a sensitive issue and happened due to the 4.6 msec TDMA operation of the RF power amplifier. The most important thing to avoid this problem is the layout design of the audio circuits of the mobile, mainly following the old rules of the audio amplifiers PCB design (a lot of designers don't follow, or do (...)
Just for Analysis or design? A spectrum Analyzer would be far superior. Got one? High impedance? Why? Ingres test? Better to use BPF to reduce noise factor if possible. Consider ADA4897-1: 1 nV/√HZ, LOW POWER, RAIL-TO-RAIL OUTPUT amplifiers vs 6 nV/√HZ
unless you verify your design parameters for Transmit path.. antenna pattern, received signal at RFID and return path received at reader, I cannot help. I wish I were a mind reader. :>)
hi guys, i am new here and want some help. i need different methods of designing low noise amplifier at frequency range from 1 hz to 3 khz.and i need to design a LNA in this frequency range.gain is not important for me but noise fig should be as minimum as possible.
Hi, wonder if anybody has come across designing a gain controlled LNA with gain of -10dB to 38dB of <=1dB per step. Would appreciate your recommendation on structure and the breakdown of gain & fine tuning method. Thank you in advance.
Ultra Wideband Antenna design
I wonder, what rules I must observe if I design low power amplifiers. Some of them 1. Long channels 2. Body connect to source instead substrate (I have double NWELL) 3. Guard rings low power or low noise? I think power is not the key performance in amplifiers. it is
Hi All, I am designing a low voltage bandgap <1v. In it have a opamp. What are the requirement of this amplifiers. I am aware that it should have high DC gain, Low ICMR.. My doubts is 1. How to fix the ICMR for this opamp and how can achive it. I read few papers on rail to rail opamp where bulk bias is used to achive this. Is there any alt
the best is Gonzalez book "microwave transistor amplifier analysis and design " Khouly
In microwave LNA design there are no lumped inductors. They use in general only microstrip inductors. Even at low frequencies some MMIC amplifiers are inductor free. Here is an example.
Low noise or high power.. You should first answer this question because of circuit topologies are very different. Which band will you use it?? VHF,UHF or both ?? If you don't know anything about wideband amplifier design, use "ready to use" amplifiers from WJ, Sirenza,RFMD, Anadigics, Mini Circuits etc... To implement an very wide (...)
Usually Instrumentation amplifiers are for amplifying low frequency signals. So the offset voltage and 1/f noise of the opamps are the biggest concerns (usually). So if you want to use a CMOS process for you design, you may have to use autozeroing or chopper stabilization to eliminate the offset and 1/f noise of opamps. OpAmp
Hi Everyone, I need help concerning CATV specifications. I crossed upon the C/N ratio and it's use in CATV system design. C/N of and amplifier means the ratio of Carrier to the output noise of it. For one unit this definition is fine, but what about a cascade of amplifiers ? In ordinary RF cascade design, one wants to (...)