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Re: Antenna 406MHz
Hi, at this frequency I wouldn't recommend a patch antenna.. it would be quite cumbersome.. let's say about half a meter.. something less can be achieved but you pay it in therms of weight increase.. well.. it depends also on the application you need... for a commercial user...
Re: Ku SSPA
Hello, your problem description is not clear.. can you reword it?
On the other side, i can say that in Ku band TWTA are more indicated... why did you choose SSPA?
What requirements do you have?
Let me know.
Regards,
Lupin
Hi satellite,
in which band are you working? Do you have only one carrier or multicarriers? It should reduce your efficiency..
Let me know.
Regards,
Lupin
U can try:
- a "T" divider (if u don't need low coupling between output ports)
- magic "T" (u have a further freedom degree)
- a branchline (4 ports, advantages on isolation between putput ports and on reflection at the input port)
- Wilkinson divider (similar to the branchline but more...
Does anyone have experience on modulation simmetry? I am performing a ToA measurement and somebody told me that the modulation simmetry plays a role in the error figure.. can anyone illuminate me?
Thanks in advance.
Lupin
Can anyone clarify the meaning of the modulation simmetry and why is it considered important for example in ToA measurements?
Thanks in advance for your help.
Lupin
Hello, I have realized a WG to coaxial line transition in X band but I don't understand what you really need.. do u have an idea of the RF losses tha you expect?
Regards,
Lupin
Re: Rat-race Design
Hello people, I need to design a rat-race in C (5.03 GHz) band.
What technology do you suggest in terms of losses and weight? Stripline, WG or coaxial line?
Thanks for your support.
Lupin
Re: design, simulation active antennas for GPS/galileo syste
Hello, what kind of antennas do you have to simulate? On-ground or on-board?
Regards,
Lupin
Hi there,
can anyone give me evidence of a Matlab tool implementing a troposphere model for GPS applications?
Thanks in advance for your prompt reply.
Regards,
Lupin
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