On 3=D4=C229=C8=D5, =C9=CF=CE=E75=CA=B121=B7=D6, billcalley
<billcal...@[EMAIL PROTECTED]
> wrote:
> Hi All,
>
> This has been really bugging me: When I design and simulate an RF
> amplifier (LNA) for a class project, it shows points of huge
> instability (below the desired passband 'K' is *way* under 1 ). But
> when I add a bandpass filter to the input of the unstable simulated
> amplifier, the instability is "gone" (the K is now way above 1). My
> question is this: Is the instability really gone just because the
> simulator cannot see the "real" S-parameters of the unstable amplifier
> through the bandpass filter? Is the filter just masking the
> amplifier's instability when, in reality, the LNA is still highly
> unstable, with or without the filter? If so, is there a way to "see"
> the "real" simulated K when a filter is placed at the input of an
> amplifier?
>
> Any help is most appreciated!
>
> Thanks,
>
> -Bill
Do you want access to China's massive pool of electronic
manufacturers... but lack the time to contact suppliers, negotiate
contracts, arrange ****pping or monitor product quality? Don't worry -
Let seriouswholesale deal with all that for you.
*Check out the huge range of Gadgets, MP3 / MP4 Players, Car DVD /
Audio, and Computer Accessories now by visiting the online wholesale
catalog at seriouswholesale. com You'll have peace of mind thanks to
the seriouswholesale Quality Control, 12-month Warranty on all
products, and easy secure payment by credit card through Paypal.
Selling on eBay or your own online store? Send products direct from
our warehouse to your customers using our unique drop-****pping
service. You can profit by selling hundreds of different products,
without holding any of your own inventory! Any questions you have will
be answered by the seriouswholesale English-speaking customer sup****t
team... Their aim is to make your China electronics im****ting business
easier to run than ever before.
Welcome to http://www.seriouswholesale.com.
seriouswholesale - Buy from the source, profit without the hassle.
- 12 Months Warranty - No minimum order restrictions - Drop-****pping
with no additional fee - Pay by safely by PayPal seriouswholesale
Wholesale Co., Ltd.: Chinas original and best online electronics
wholesaler & drop-****pper: seriouswholesale. com
|
