13.5GHz PLL/Synthesizer [hlp]

[elf61]

Goodnoon;
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?

 

[boy]

There are some VCOs that can work up to 25 GHz.

www.siversima.com

 

[khouly]

i think it can be done both discreet and MMIC
it will depend on ur spec's and application and cost
check this link
https://www.hittite.com/index.cfm?b...source=leftnav&subID=95,96,97,98,99&subHead=8

it is hittite dividers for microwave


khouly

 

[elf61]

Khouly wrote:

i think it can be done both discreet and MMIC
it will depend on ur spec's and application and cost

explain more. draw block diagram, introduce components, etc.
What technique do u use?

 

[khouly]

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

 

[elf61]

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.

 

[boy]

There are some prescalers that can work up to 18 Ghz.

https://www.hittite.com/index.cfm?b...source=leftnav&subID=95,96,97,98,99&subHead=8

You can then use any PLL chip that can work at 2 GHz, for example, LMX series.

 

[elf61]

There are some prescalers that can work up to 18 Ghz.

h**p://www.hittite.com/index.cfm?body_content=products&type=freq_div_det&catid=7&sort=function&source=leftnav&subID=95,96,97,98,99&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?

 

[boy]

Use the nornal PLL with DDS as a reference source. You would not find any DDS for 13 GHz.

 

[elf61]

Use the nornal PLL with DDS as a reference source. You would not find any DDS for 13 GHz.

what about discrete design? explain.

 

[khouly]

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 "
www.synergymwave.com/Articles/PDF/Synthesizers.pdf

khouly