some questions about using hfss
时间：04-01
整理：3721RD
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i have two questions to ask:
(1) how to excite two ports at the same time in hfss, what can i do to realize it?
(2) how to set high-resistivity line or plane?assign it impedance boundary?
more quations:
(1) a paper mentioned: sheet resistence is around Rs=10κΩ/sq and each resistive line was designed to be at least 20 squares long. my question is how long a square is ? a square=(? )m.
(2) "the bias line conclude in dc pads of 150 and 400 pitch", so what is pitch?
(3) the loss tangent of high-resistivity Si?
That is all, any help will be appreciated!
(1) how to excite two ports at the same time in hfss, what can i do to realize it?
(2) how to set high-resistivity line or plane?assign it impedance boundary?
more quations:
(1) a paper mentioned: sheet resistence is around Rs=10κΩ/sq and each resistive line was designed to be at least 20 squares long. my question is how long a square is ? a square=(? )m.
(2) "the bias line conclude in dc pads of 150 and 400 pitch", so what is pitch?
(3) the loss tangent of high-resistivity Si?
That is all, any help will be appreciated!
thank you ,asdfaaa.then i want to ask:
1 i want the bulk conductivity of high-resistivity Si in X-band (8-12GHz),can anybody tell me ,thank you!
2 "square " is often used, i want to know it represents which unit in general.
3 the last,"pitch" is what?
i will appreciated your help!