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.
It is intended to encrypt raw data using an encryption method and hide the obtained data in a digital image by the means of steganography.
1- Can I use advanced encryption standard (AES) for data encryption and selected least significant bits (SLSB) for steganography? Is it worth working on for...
I want to design an x-band corrugated waveguide feed at the central frequency of 10 GHz.
If the ridge radius is the same as smooth waveguide radius (2*r1 = 23.83 mm) then based on the balanced condition, the slot radius of aperture (r0) will be:
Sm(x1, x0) = 0
x1 = k*r1, x0 = k*r0
(r1 =...
I see.
If you are familiar with MATLAB, you may not have any problem with "Genetic Algorithm".
Actually MATLAB comes with a toolbox for optimization and it has already the function "ga" which works based on genetic algorithm theory. The only important parameter needed for this function is the...
Hi thesisofantenna,
Here is the list of items you should know.
1- Designing a Patch Antenna
2- CST Suit Studio
3- Genetic Algorithm
Which item do you know about?
Consider the circuit in the attached picture.
R2 and R3 are noiseless. and V1 = (4*k*T*R1*B)
if C1 was not in the circuit, it would be possible to use the following equation and calculate the output noise voltage.
V0 = R3*V1/(R1 + R2 + R3)
However I do not know how to calculate the output...
Dear volker_muehlhaus ,
Thanks for replying. I made a mistake describing the system. Here in UK, 10.000 to 10.125 GHz is amateur band and I am using 10.00 to 10.02 GHz. Indeed my supervisor asked me to design a RF transmitter which can provide +0 dBm for the antenna.
I have no idea how he...
Well, to be crystal-clear, I am trying to design a Cassegrain reflector antenna @ 10 GHz. I need this antenna to transmit BPSK modulated data with 50 Mbps data rate. The link is 1 km.
This RF link is one part of a hybrid Optical/RF link. The RF link must be sight-to-sight to ensure the security...
Thanks volker_muehlhaus,
But I am not still sure that 400W is true for a sight-to-sight (directive) link.
Don't you think that I should consider health safety issues instead of OFCOM regulations?
Thanks jiripolivka & davenn,
So what I realized from your replies, is that, there is no regulation for amateur bands. I mean everyone can use it in any way that he likes. However if someone wants to use this band, he must accept the interference of other users.
Hi everyone,
I want to design a reflector antenna working at 10 GHz. How can I find the maximum E.I.R.P for this band?
I also need the regulations for radiation pattern?
If possible give me some reference for that.
Please help me.
Hi Everyone,
I want to measure "CNR" parameter of a receiver. I am using a spectrum analyzer which is not able to measure this parameter so I have to do it manually. However I have no idea how to do it!
Receiver:
Central Frequency: 10 GHz
Modulation: BPSK
symbol...
Thank everyone,
Acctually, "zrmotoring", I want to use for some kinds of birds. However I am not sure about the range of frequency and I need to perform some test to specify the frequency range.
Hi Everyone,
I am working on a project in which I need to produce acoustic waves in range of 20KHz to 80KHz. The main problem here, is to find a speaker able to generate such wave.
First of all, Is there such speaker? If yes, please guide me. Thanks in advance.
mfc on_ok
Hi Everyone!
I wrote a Dialog Based program using MFC Classes. I noticed that one can leave the program by pressing 'ESC' or 'Enter' key. I add an event handler to reject these keys but it doesn't work. Please help me.
Thanks in advance!
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.
