Effect of open stub and short stub of Band pass filter performance??

Dear All! I have seen several papers on design of microstrip band pass filter using open/short stub...I am not quite clear about where to use open stub and where to use short stub or what is the...

09 October 2019 7,410 3 View

How to calculate dimension of stubs of stub loaded resonator BPF to work in UWB band?

Hello!! I have seen several papers using various techniques (e.g., SLR, SIR) to design BPF for UWB band applicaton..I wish to ask how the dimensions of filter are decided/choosen so that it...

08 September 2019 3,781 4 View

Why fractal filters(BPF) usually have better selectivity (roll off rate)??

Dear Researchers, I have studied several papers on design of band pass filter (BPF) using fractal structures say Koch Fractal, Minkowski Fractal etc. They all usually have good rolloff rate. What...

03 April 2019 9,186 2 View

In Multi Mode Resonator(MMR) band pass filter (BPF) using open stubs, why position of Transmission Zeros (TZs) is dependent on stub length??

Dear Researchers, I have designed a SIW MMR filter using comb slot (acting as open stub). In the mode chart, the position of TZ (transmission zero) esp at upper stop band is changing with the...

02 March 2019 7,146 4 View

Extract Permittivity and Permeability using NRW Method?

Dear Reserachers, How to Extract Permittivity and Permeability using NRW Method for a metamaterialin HFSS software. Anyone who know, kindly guide the steps.. Thanks Nitin

10 November 2018 3,946 5 View

Rule of Plagiarism in reputed Journals (IEEE/Wiley/Elsevier/Springer)??

Dear Researchers, Can someone kindly guide about rules of plagiarism in these reputed journals? Is it counted for consecutive four(4) words or more..As per new UGC rules (in India) 14...

08 September 2018 3,211 4 View

Regarding review time of few journals in Electromagnetics?

Regarding review time of few journals in Electromagnetics I need to know average review time of following journals:1. journal of electromagnetic waves and applications (Taylor francis)2. IETE...

07 August 2018 5,900 3 View

How to calculate roll off rate of a band pass filter?

dear Reserachers, pls guide how to find value of roll off rate at both edges of Band pass filter in term of dB/GHz. i have attached a graph of someone's paper.kindly guide how he has found value...

07 August 2018 9,227 1 View

How to calculate roll off rate of a band pass filter?

Please find attached paper.In second last page, author have given formula of roll off rate. Can anyone guide howto read 40db and 3 db attenuation point in S(S Vs f) parameter graph as given in...

31 December 2017 2,892 2 View

Effect of slot on freq. band of SIW?

Hello, i designed a SIW say x=12, y=12mm. and got fc ~10GHz(HPF). Now introduced a slot of size 4x4mm at centre and want to see effect on freq. band(BPF) of slot.. Where should it shift??? In my...

11 December 2017 7,078 1 View

Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 View

What kind of intervention will be relevant to increase motivation among young sport trainees?

Any suggestion on what book to read is also welcome.

03 March 2021 1,646 4 View

What are the values needed for gabor filter's parameter for cifar10 data?

Hi, I implemented a code to gabor filter cifar10 data but the images after being filtered and stacked are not clear like the original images. I think the problem is in the way I am using the...

03 March 2021 6,317 1 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

Should we change media after1st 6hrs after plating HUVEC bought from INVITROGEN?it's not recomended by invitrogen.Will DMSO present in stock matter?

We have HUVEC bought from Invitrogen. Cat no -C-003-5c. while first plating the cells we have bought the protocol suggests not to centrifuge the cell with media to remove the DMSO. Should we...

02 March 2021 3,713 2 View

How to normalise data on OPM package from R Studio ?

Good afternoon, I recently used OmniLog from BIOLOG for my experimentations : I tested the metabolism of different strains on 2 types of plates. I have 16 strains of 3 different groups...

02 March 2021 3,584 1 View

I am interested in medicinal chemistry field, which books are highly recommended to learn from?

I am at the beginner level in drug design and drug discovery, and I am interested to learn more about this field. Which books are highly recommended to start from and gives me all essential...

02 March 2021 8,437 2 View

Please suggest a good text book for "Research Methodology in Life Sciences". Which book would be good for PhD Scholars?

Please provide Book Title and author name

02 March 2021 9,059 3 View

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View