13.5GHz PLL/Synthesizer [hlp]
A project:
"Design a 13.5GHz PLL/synthesizer."
Help me (block/diagram, articles, papers, links).
Can you design it with MMIC or with discrete components?
There are some VCOs that can work up to 25 GHz.
www.siversima.com
i think it can be done both discreet and MMIC
it will depend on ur spec's and application and cost
check this link
http://www.hittite.com/index.cfm?bod...8,99&subHead=8
it is hittite dividers for microwave
khouly
Khouly wrote:
explain more. draw block diagram, introduce components, etc.
What technique do u use?
the simple pll is a feedback system composed of phase detector filter VCO and frequecny divider
the attacehd is a block diagram for the pll
Hello Khouly;
But the block diagram you uploaded is for a simple PLL. For the 13.5GHz probably we should use hybrid PLL or frequency multiplier.
There are some prescalers that can work up to 18 Ghz.
http://www.hittite.com/index.cfm?bod...8,99&subHead=8
You can then use any PLL chip that can work at 2 GHz, for example, LMX series.
I saw the Hittite's website. But I'm interested in a novel design, e.g. a 13GHz PLL, or a novel design method (e.g. using DDS), or a discrete design. Have you any idea?
Use the nornal PLL with DDS as a reference source. You would not find any DDS for 13 GHz.
what about discrete design? explain.
can u tell us about the other spec's of the PLL u want
like the frequncy step and so on
also check the book
Rohde "Microwave And Wireless Synthesizers "
http://www.synergymwave.com/Articles...nthesizers.pdf
khouly