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As other gurus mentioned above for GaN devices you should follow the bias sequence as specified in the app notes.
Never apply the drain before the gate bias is settled.
As a general rule, you should apply a negative voltage to the gate making sure that the transistor is off.
Then apply the...
Hi
Make sure you carefully follow the design procedure:
1) Refer to transistor's datasheet and invoke the source and load impedances to be matched with transistor in the frequency of interest (Zs, ZL)
2)perform source/load pull simulation in ADS to find the best Zs and ZL to meet the delivered...
Any device in a transmission line should have the same impedance as the characteristic impedance of the line (Z0). otherwise it causes mismatch and reflected waves.
All devices have a limited bandwidth in which they are matched to the line Z0, refer to the device datasheet to find its operating...
Hi guys
I need help in designing a super-cap supply backup circuit in my design.
How should I use the super capacitor in my design and how can I charge it without using a charger IC like LTC3536.
BR
You can simulate your design in two states:
1) when the switch is open: put its open circuit equivalent circuit in place of the switch
2) when the switch is closed:put its closed circuit equivalent circuit in place of the switch (or simply replace it with a strip of PEC)
Hi
I have designed a UHF 30dB edge coupled stripline coupler on RO4003 substrate, everything was fine when i used HFSS waveports exactly at the ends of the stripline, but when i tried to extend the ports using microstrip lines, the port matchings are good but the isolation and directivity...
when subtracting the via cylinder make sure that the "clone tool objects before operation" check-box is checked.
Then you can assign a conductor or a PEC material to the via.
To select an object press O and when you click an object the whole object is selected.
If you wish to assign PEC...
Hi
I want to design a ku-band upconverter using rfic components.
Design requirements are:
1-RF frequency band 14-14.5 GHz
2-Baseband bit rate : 10-500 kbps
i searched the internet and decided to use ADF4350 synthesizer in a two level mixing design.
My question is what would be the suitable LO...
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