I have some question in MWO?

[jackie1116]

I have a circuit that have input port and output port,and i hope the port is (a+jB)
impedance not 50ohm(real) impedance,i don't know how can i do?

thanks!

PS : i use microwave office 2002

 

[yichien]

I cannot use complex impedance on port under MWO 2002.

try to use @DS, it works.

 

[jackie1116]

if use MWO 2003 or above 2003, can it solve my problem?

The@DS, you mean ADS software?

 

[midnite]

also with newer versions of MWO you cannot use complex impedance ports.
You can use ANSOFT DESIGNER. The student version is downloadble in the company web site.

regards,

midnite

 

[Manjunatha_hv]

Hi jackie,


Its very simple, define port impedence as variable ex : Z then
write a equation Z =A+jB with A=50 & B=0.5, etc....
You can use any version of Microwave Office...find attached ann example on the above...


---manju---

 

[jackie1116]

thank a lot! but this complex impedance are include 3 inductor and 2 captance,shall i transfer this equal
impedance ,first ? then use the way that you offer

I ever use one way, that is creat a new circuit,then use portin module and this portin's impedance is a
complex value, but it is not accuracy.

 

[Manjunatha_hv]

Hello jackie,


You mean to say you want a network/circuit terminated port...
Then select from The MWO Eleements -> Ports -> Network Terminated Circuit Port: PORT_TN;

This is a passive circuit termination that applies a load specified as the port NP of the schematic named in NET. The port number P is set automatically.

I modified the same circuit to sow this capability in MWO...
Where I created Microstrip With Circuit Port Schematic with Lumped Circuit Port Termination as per your rquirement...
Hope this helps

---manju---

 

[jackie1116]

Very thanks a lot!

Attached file is my circuit. file complex port is a complex impedance R+(R//C)==>
270+(750//150nF),and i created a new circuit (complex port) than used portin module to my circuit, but S21 and S11 is not accurate,so i don't know what is the best way to solved my problem .

And in your reply, you mean that the portin module is a terminate impedance,so
i can't use this way to my circuit ,doesn't it?

Pls offer your opinion!

thanks!

 

[maudape]

Hi, have you any experience in simulating antennas on MWO 2004??

Thanks

maudape

thank a lot! but this complex impedance are include 3 inductor and 2 captance,shall i transfer this equal
impedance ,first ? then use the way that you offer

I ever use one way, that is creat a new circuit,then use portin module and this portin's impedance is a
complex value, but it is not accuracy.

 

[Manjunatha_hv]

Is it Planar Patch Antenna then, Yes...Send me the DXF file with the substrate parameters...I will help you...