beautypg.com

Spectral purity – Atec Agilent-E8257D User Manual

Page 8

background image

8

Output impedance

50 Ω (nom)

SWR (internally leveled)
250 kHz to 2 GHz

< 1.4:1 (typ)

> 2 GHz to 20 GHz

< 1.6:1 (typ)

> 20 GHz to 40 GHz

< 1.8:1 (typ)

> 40 GHz to 67 GHz

< 2.0:1 (typ)

Leveling modes

Internal leveling, external detector leveling,

millimeter source module, ALC off

External detector leveling
Range

–0.2 mV to –0.5 V (nom) (–36 dBm to

+4 dBm using Agilent 33330D/E detector)

Bandwidth

Selectable 0.1 to 100 kHz (nom)

(Note: not intended for pulsed operation)

Maximum reverse power

1/2 Watt, 0 V

DC

Harmonics

1

(dBc at +10 dBm or maximum specified

output power, whichever is lower)

< 10 MHz

–28 dBc (typical below 1 MHz)

10 MHz to 2 GHz

–30 dBc

2,3

10 MHz to 2 GHz (with Option 1EH filters on) –55 dBc

4

> 2 GHz to 20 GHz

–55 dBc

> 20 GHz to 67 GHz (Option 532, 540, 550 & 567) –50 dBc (typical)
Harmonics (measured)

1. Specifications are typical for harmonics beyond specified frequency range (beyond 50 GHz for Option 567).
2. Specification applies to units with serial numbers ending with 45130000 or greater. For units with lower serial numbers, the specification is –28 dBc.
3. Typical below 250 MHz if Option 1EH is installed and the filters are off.
4. In ramp sweep mode (Option 007), harmonics are –30 dBc below 250 MHz.

Spectral purity

Option 520 standard harmonic

performance (measured)

Frequency (MHz)

0 2000 4000 6000

-30

-40

-50

-60

-70

-80

Harmonics (dBc)

-3

-4

-5

-6

-7

-8

Harmonics (dBc)

armonic

ed)

Option 532/540 standard ha

performance (measured)

Frequency (MHz)

6000 8000 10000

0 5000 1000

-30

-40

-50

-60

-70

-80

Harmonics (dBc)

Option 567 standard harmonic performance

2nd harmonic (dBc)

Carrier frequency (GHz)

-30

-40

-50

-60

-70

-80

-90

-100

0

5

10

15

20

25

30

35

Standard

Carrier frequency (MHz)

Standard vs.Option 1EH harmonics (measu

2nd harmonic (dBc)

0

-10

-20

-30

-40

-50

-60

-70

-80

-90

0

500

1000

1500

2000

Option 1EH