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variation of o/p freq. of a microwave osc. with dielectric resonator(DR) placement

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per_lube

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Hi,

I got a question regarding Microwave DRO (Dielectric Resonator Oscillator).

Could anyone explain how sensitive is the output frequency of a DRO with the dielectric resonator placement between coupling lines?

If the oscillator is set to work at 10 GHz, what will be the variation of output frequency with the resonator is displaced as follows...

1. if the resonator displaced about 0.1~0.2 mm away from the coupling line from the original position
2. if the resonator displaced about 0.1~0.2 mm closer to the coupling line from the original position
3. if the resonator is raised about 0.1~0.2 mm from the substrate

I don't have access to a DRO to do this experiment.

cheers,
per_lube
 

tony_lth

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I remember there are several free softwares can do simulation, try to find them. Then you can have answer. the software is a little old.
 

per_lube

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Thanks for the reply tony_lth.

I'm looking for the softwares, still couldn't find a one. However I'll continue the search for such software.

I've got two more questions....
1. What is the widely used method for accurate placing (to keep the accuracy of the placement) of a DRO in an assembly line in the industry?
2. Which kind of mounting and adhasives used for mounting the DRO on the RF PCB?

could anyone tell the answers please..

cheers,
per_lube
 

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