How to realize a matching load in microstrip structure?

[shmily0447]

Hi,

Can anyone please kindly instruct how to realize a 50 Ohm matching load by microstrip structure? The matching band is from 57 GHz to 64 GHz.

I heard that the microstrip fan can fulfill this task, is that true? Can anyone please kindly provide some realted information?

Thanks in advance.

 

[pico]

You need a filter for 57 GHz to 64 GHz band.
Try this one.
**broken link removed**

 

[shmily0447]

Hi Pico,

Thank you very much. But I think I need a 50 Ohm matching load with one port from 57 GHz to 64 GHz.

How can I realize it by using a filter?

Can you provide more details?

Thanks in advance.

 

[volker_muehlhaus]

I heard that the microstrip fan can fulfill this task, is that true?

The fan stub can be used to implement a short circuit at certain frequencies. Now you need a 50 ohm resistor in series between your microstrip and the fan stub.

The reason to use a fan stub and not a simple via: the via through PCB will have some series inductance, depending on the substrate thickness.

 

[shmily0447]

Hi volker,

Thanks alot for you information. It really helps.