Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Could you please re-phrase and describe your question a little better? If you have a circuit using microstrip transmission lines as interconnection, it is almost impossible that the microstrips will limit your bandwidth. What's your circuit anyway? Isn't the bandwidth definition a -3 dB point in the frequency amplitude response? Therefore where the microstrip has 3 dB attenuation, there's your bandwidth of the microstrip line...
The only things fundamentally limiting bandwidth in a microstrip circuit are the enclosure size (at very high frequencies the enclosure will support a waveguide mode) and the substrate thickness (thicker substrates do funny things at very high frequencies, 0.015 inch thick duroid should be ok to 18 GHz or so).
i want to design a microstrip matching circuit for UHF tv band in 470-860MHz. and i want to know that i could design the matching for 665MHz or anywhere.
thanks
it is not the bandwidth of the microstrip line you are looking for, it is the bandwidth of your matching network then. It depends of the topology used. However, considering frequencies of interest, you will be better off using lumped elements for the matching. Microstrip line, depending of the technology, can be used in mm wave region.
Time for all of the Engineers on this board to re-calibrate. There are a rash of posts from students/neophytes that are inarticulate and do not mean at all what they are saying. This topic is a case in point, the guy is asking bandwidth of microstrip when he meant to ask about bandwidth of a lumped element UHF matching network. You can not take these simplistic questions at face value anymore.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.