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

Why cutting a slot on SIW structure produce band pass response?

Hello!!! Simple SIW (Substrate Integrated waveguide) structure is a rectangular guide created within a substrate by adding a top metal over the ground plane and caging the structure with rows...

03 April 2019 4,649 1 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

What thickness need for ITO to use as conductive layer?

I want to do RF sputtering of ITO on glass substrate using magnetron sputtering. what thickness do i need to make it good conductive layer to use it for PSC. Moreover, whats about thickness of...

01 March 2021 395 3 View

Is there any published or unpublished statistics on dropout rate (Dose1 to Dose-2) for Covid-19 vaccination in India, US, UK or any other country?

Are there any published or unpublished statistics or papers on the dropout rate (Dose1 to Dose-2) for Covid-19 vaccination in India, USA, UK, or any other country where vaccination has started at...

28 February 2021 4,237 1 View

Please suggest the website or link for the collection of data for (Cancer Incidance Rates in India)?

We are doing research for the prediction of cancer incidance rates increases in India upto next five years. Please help us to get the exact data for Cancer Incidance Rates in India. This will...

19 February 2021 8,478 2 View

How can I measure the surface interaction or surface interfacial chemistry between polishing abrasives and upper surface of substrate ?

I am working on polishing abrasives. I need to do few characterizations ? which can provide the on time surface chemistry of substrate with polishing abrasive during optical polishing. I would...

18 February 2021 5,319 3 View

Access to supercomputer resources in India?

Hello everyone, I want to perform some gaussian calculations and want to use Materials studio for my research work. Can anyone guide me how to get access to supercomputer resources in India for...

15 February 2021 8,264 3 View

What is India's InternationalTrade Policy during Pendamic? How do you find the policy as successful one?

During Covid-19 Pendamic Government are facing problem to maintain business. India is one of them so this question is perfect to be discussed here.

08 February 2021 2,725 3 View

Which satellite image gives best results for Land Use land cover classification(specifically for built up regions) for Indian region ?

Landsat, sentinel and USGS satellite images have varying accuracy for identification of urban built up dynamics ? Which one is best suited for India

04 February 2021 8,632 8 View

What is the role of IQAC to improve the grading of an institution?

IQAC provides all information about institution and its various activities to NAAC, Bangluru, India in order to get good grading. In this light what is the role of IQAC??

03 February 2021 6,916 1 View

Is it possible to have a diffusion of oxygen from the glass substrate (SiO2) into the absorbent layer during annealing process?

02 February 2021 382 7 View

I want some expert (free) advice and guidance in interpreting depositional environment from well logs in a deltaic setting. Anyone ready to help?

I am looking into the geophysical well logs from a coaliferous basin in India. I need some help in depicting the depositional environment from well logs.

02 February 2021 6,052 3 View