Saurabah :

Itsn`t usual to generate de SSB in 10 GHz.
The logic solution is :
1) Make al SSB generator in the  70 MHz range (+ or -).
2) Then, upconvert this SSB signal up to frecuency that
     you desire.

Please, excuse  my poor English.
Regards.
R.Bunader



----- Original Message -----
From: Saurabh Sinha
To: PICLIST@MITVMA.MIT.EDU
Sent: Friday, May 25, 2001 3:25 AM
Subject: Re: Help! Single side mixer CMOS


Hi!

Thank you for your mail. There is no problem with filtering. However, in
this case since the frequency is too close (10GHz and 10.5GHz), they are not
too far apart, so if I filter the one, the filteration of the other is
automatic! Any hints?! (other method would probably do the trick...)


Regards,

S. Sinha (Saurabh)
Tel/Fax: (012) 343-4912
Cell: 0825405577
E.Mail: ssinha@IEEE.ORG
Visit: http://home.mweb.co.za/si/sinha
ICQ: 82010326

----- Original Message -----
From: "Peter L. Peres" <plp@ACTCOM.CO.IL>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Monday, May 21, 2001 10:42 AM
Subject: [EE]: Help! Single side mixer CMOS


> > Any CMOS experts that can help me with a SSB mixer. I managed to
> > design a gilbert cell mixer (MOS level design) but it generates double
> > side bands, I only need one of them. Filtering tends to eliminate both
> > as the two frequencies are too close. Please suggest a URL or
> > something from experience. I have tried to do net searches, found many
> > hits, but none helpful.
>
> This is nothing to do with CMOS. Do the math. Both sidebands must be there
> after the multiplication.
>
> To remove one, you can use a second identical mixer and phasing networks
> so they work 90 degrees out of phase. Then you can substract or add the
> outputs and get rid of the unwanted sideband.
>
> Peter
>
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