Wednesday, February 18, 2015

Indigenous CMOS Wideband Radio Amplifier - Our Lab's Contribution.


It is a proud moment that the work done in your lab (Analog and RF Systems Laboratory) at Indian Institute of Science (IISc), Bangalore, that contributes heavily to the development of the nation is brought out to show it to public of India for its use in strategic applications. A lot of time, money, sacrifice and effort has gone in it making so worthwhile. Kudos to our team !!

We, now, need not import the technology for the strategic applications. It is now indigenous.
The faculty incharge of this project, is my advisor, Dr. Gaurab Banerjee from the Electrical Communication Engineering department, IISc Bangalore​.

We are thankful for Department of Electronics and Information Technology (DeitY) under the Ministry of Communication and Information Technology (MCIT), Govt. of India and Bharat Electronics Limited (BEL), a Public Sector Undertaking for Defence and Aerospace for their support.

BEL is the leading Defence Electronic Equipment manufacturer for the Indian Armed forces. You can visit their stall at the AERO - INDIA 2015 to know more.

Javed GS
Research Scholar,
Analog and RF System Lab,
ECE Dept,
Indian Institute of Science, IISc

Thursday, February 12, 2015

Plots of "Life"

It is a troublesome time in a research scholar's life when his/her entire research work has to be summarized in a few plots/graphs. Now capturing all of these are difficult. How much can you show graphically?

Bringing in all the data, the inferences and outcomes due to them, all on a set of plots; I thought it wouldn't do justice to the amount of time, effort and the sacrifices that have come along generating and 'verifying' them .

My peers and seniors would say, 'It is easy. Very very easy'. How, I asked ?

'Don't you know some thing called 'MATLAB'. Use it, my friend.' (Just for the folks working in "my area of interest". There are a score of other tools available)

There are times when just adding a graph increases the value of your work manifold while writing papers to communicate your research work, this is one of them.

Why ? They are the "life" of the work. Each and every plot !!
Plots of "Life"

In my search to add more value to my work, I came across, few interesting links. I am just compiling a few here.

1. Plot 2-D lines on both y-axes
2. 1 x-axis, many y-axes, different y-limits. Try this one !!
3. ...

... to be continued.

Sunday, June 1, 2014

FMCW radars

FMCW radars – Frequency Modulated Continuous Wave Radars
A big, fancy name for a distance sensor. Yes, it is a sensor. And it works in the 77-81 GHz range. Where? In automobiles.
 Why? Collision Avoidance, Automated Parking, etc.

It is something similar to what bat uses, Echolocation. Ultrasounds are emitted and compared with the returning pulses to create an image of the surroundings for the bat to navigate/hunt.
A modulated frequency is sent and received, and the difference in frequency is used to directly determine the distance as well as the relative speed of the object.

Your car wants to think and drive, by itself. It wants echolocation. 

Automotive applications for CW Radars