Search Engine www.edaboard.com

272 Threads found on edaboard.com: Design Bandpass Filter
q1) in combline bandpass filter why the resonator impedance is greater than 50 ohm and in interdigital filter resonator impedance is less than 50 ohm? q2) what is the length of feedline we have to take while designing combline and interdigital filter and why that length??? why that length cannot be (...)
hi frnds iam supposed to fabricate a combline bpf having 1.1% (FBW) and in the low pass prototype iam getting external quality factor around 190 and coupling coefficients very low(i want to design using transformer coupling) the problem is when i want to know the spacing b/w resonators whether i have to take resonators having via hole grounding or
if i want to design using tapped line to design combline then what should be the length of tapped line and where i have to put the tap to the first resonator to get narrow band width.........another question is that if i want to design a filter using capacitive coupled series resonator(gap coupling) i found the value of capa
Hi, I'm designing an FM broadcast radio receiver front-end as a method to teach myself about RF design. I'm having some trouble designing the bandpass filter for my IF stage. To increase selectivity and eliminate image frequencies, I decided to design a dual-IF converter, using one (...)
I have work on filter design (bandpass filter) and i am designing filter with defected ground structure and i was simulate my design with AWR(Applied Wave Research) or Microwave Office. Now I turn to HFSS to learn and simulate with it Can anyone help me on how to model (...)
1) design of Quasi-Elliptic bandpass filter Based on Slow-Wave Open-Loop Resonators Authors: Zhang, X.C.1; Xu, J.1; Yu, Z.Y.1 Source: Journal of Electromagnetic Waves and Applications, Volume 22, Number 13, 2008 , pp. 1849-1856 2) A design of microwave resonator Source Recent Advances In Computer (...)
Hello, There is a free tool from Nuhertz filter solutions for filter design... & also a 30 days full version trial license also available it even as the dxf & sonnet export for Planar Hairpin resonator Transmissionline filters... Then finally use the Sonnet Lite free version to validate, see here some e
Hi..... you know your design better.. so asking a code :?: i suggest some steps.. follow that.. its easy to use matlab... in command prompt type >> fdatool i.e filter design automation tool... just fill out your required bandpass or low pass filter informations... and just select the option (...)
go with the simple steps analog design.. heart signals --> Instrumenation amplifier--> Right Leg Drive circuit --> bandpass pass filter --> T notch filter --> osclioscope output specification: filter frequencies and gain at each steps... then you can next go for Digital circuit (...)
hi, the best design method to realize the RF BPF (NOT CAVITY filterS) The specifications: Passband range: 400MHz-600MHz Passband Insertion Loss: < -3dB Passband Return Loss: >-15dB Attenuation at 10 % away from bandwidth is around -60dB please help in getting the best design method... thank you
hi, the best design method to realize the RF BPF (NOT CAVITY filterS) The specifications: Passband range: 1800MHz-2200MHz Passband Insertion Loss: < -3dB Passband Return Loss: >-15dB Attenuation at 10 % away from bandwidth is around -60dB please help in getting the design method... thank you
hi how to design a tunable bandpass filter using ferroelectric materials can anyone guide me in this
I see! In that case, crystal filters cannot be considered. Generally speaking, you can build any filter including helical filters by the coupling coefficient method. After you obtained the k values either from any commercial software or from g-value. You may find the right dimension and coupling apertures etc by simulations (HFSS for
Hi all im currently trying to design a guitar tuner in MATLAB and am new to this. Currently I record my string using the following code then bandpass filter it and then FFT it. I get the right result but I now need how to detect my peak so that I can look if it is on tune or not as my code just loops and records agian if the detection is (...)
Hello All, I am about to design a CT/BP/Complex ΔΣ ADC . First I have designed a LP DT Real NTF then changed it to CT prototype next I've shifted the center freq. to 5 MHz. When I plot the NTF and STF it seems the filter property is ok. I have also extracted the ABCD matrix to be able to simulate the system in time domain. But (...)
Hello MAHENDRA BABU, I suggest you to use Sonnet or AWR Microwave Office for SRR design & Analysis Here is nice article on SRR using Sonnet A novel bandpass filter based on complementary split rings resonators and substrate integrated waveguide Wenquan Che *, Chao Li, Kuan Deng, Lisheng Yang Department of Electrical Engineering, (...)
Dear friends, As a part of my thesis which is to design a bandpass sampling receiver I have two basic questions to ask: 1- How to express and show a single sideband bandpass signal in MATLAB. 2- I have the transfer function of a complex FIR filter and the coefficients but I don't know how to express it in MATLAB and (...)
Dear friends, As a part of my thesis which is to design a bandpass sampling receiver I have two basic questions to ask: 1- How to express and show a single sideband bandpass signal in MATLAB. 2- I have the transfer function of a complex FIR filter and the coefficients but I don't know how to express it in MATLAB and (...)
I have to design bandpass filter & I need bandpass filter code for Matlab for analysis. Please send the code to me if anybody have or provide links on net. Thanks..
Hi everyone; I have to design filter by using the window method without using 'fwind1' command of the code is: %----------------------------------------------------------------------------- = freqspace(21,'meshgrid'); Hd = ones(21); r = sqrt(f1.^2 + f2.^2); Hd((r<0.1)|(r>0.5)) = 0;%the desired bandpass response colormap(