Agilent Technologies E8267D PSG Instrukcja Użytkownika Pobierz pdf (Strona 20)

Carrier at 900 MHz (measured)

-2

-4

-6

-8

-10

Relative gain (dB)

Offset from carrier (MHz)

-200 -150 -100 -50 0 50 100 150 200

Carrier at 2.4 GHz (measured)

-2

-4

-6

-8

-10

Relative gain (dB)

Offset from carrier (MHz)

-200 -150 -100 -50 0 50 100 150 200

Carrier at 1.8 GHz (measured)

-2

-4

-6

-8

-10

Relative gain (dB)

Offset from carrier (MHz)

-200 -150 -100 -50 0 50 100 150 200

Carrier at 38 GHz (measured)

-2

-4

-6

-8

-10

Relative gain (dB)

Offset from carrier (MHz)

-200 -150 -100 -50 0 50 100 150 200

Vector modulation

(Standard I/Q inputs)

External I/Q inputs

Input impedance switched 50 or 600 Ω (nom)

Input range

Minimum 0.1 V

rms

, maximum 1V

peak

Flatness ±1 dB within ±40 MHz of carrier (with ALC off) (typ)

RF path filters Carrier frequency Nominal filter cutoff

≤ 250 MHz 300 MHz low-pass ﬁlter

> 250 to 396 MHz 220 to 420 MHz bandpass ﬁlter

> 396 to 628 MHz 350 to 650 MHz bandpass ﬁlter

> 628 to 1000 MHz 1040 MHz low-pass ﬁlter

> 1.0 to 1.5 GHz 1.6 GHz low-pass ﬁlter

I/Q frequency response

(measured)

1. With Option 007, vector modulation is not useable in ramp sweep mode. With Option 1EH, speciﬁcations apply with ﬁlters off.

2. Different RMS levels are accommodated by adjusting the internal I/Q modulator attenuator, which may be either manually or automatically set. The minimum

input level required to maintain RF level accuracy is √(I

+ Q

) = 0.1 V

rms

3. Sine wave response, measured with input level = 0.5 V

rms

on one channel, and ALC off. For carrier frequencies at or below 1.5 GHz, modulation frequency

response within ±150 MHz of carrier may be limited by RF chain ﬁltering.

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