Agilent Technologies 24A Guide de l'utilisateur Page 175

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 453
  • Table des matières
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 174
2-44
Making Mixer Measurements (Option 089 Only)
Isolation Example Measurements
Isolation Example Measurements
Isolation is the measure of signal leakage in a mixer. Feedthrough is specifically the
forward signal leakage to the IF port. High isolation means that the amount of leakage or
feedthrough between the mixer's ports is very small. Isolation measurements do not use
the frequency offset mode. Figure 2-33 illustrates the signal flow in a mixer.
Figure 2-33 Signal Flow in a Mixer Example
LO to RF Isolation
LO to RF isolation is the amount the LO power is attenuated when it appears directly at
the RF port.
1. Initialize the analyzer by pressing .
2. To select the analyzer frequency range and source power, press:
( , 8722ES)
This source stimulates the mixer's LO port.
3. To select a ratio B/R measurement, press:
4. Make the connections as shown in Figure 2-34.
Preset
Start 10 M/µ
Stop 3000 M/µ
Power 0
PWR RANGE MAN
x1 10 x1
Meas
INPUT PORTS
B/R
Vue de la page 174
1 2 ... 170 171 172 173 174 175 176 177 178 179 180 ... 452 453

Commentaires sur ces manuels

Pas de commentaire