Amplifier Research 20S4G18 Solid State Amplifier 4 GHz – 18 GHz 20W

Description

Amplifier Research 20S4G18 is a portable, self-contained, air-cooled, broadband, completely solid-state amplifier designed for applications where instantaneous bandwidth, high gain and linearity are required. The Model 20S4G18, when used with a sweep generator, will provide a minimum of 20 watts from 5 to 18 GHz and 12 watts of RF power instantaneously from 4-5 GHz. The 20 watt model can be expanded to 40 watts inside the same cabinet.

The Model 20S4G18 is equipped with a Digital Control Panel (DCP) which provides both local and remote control of the amplifier. The DCP uses a graphic Liquid Crystal Display, menu assigned softkeys, a single rotary knob, and a dedicated power on/off switch to offer extensive control and status reporting capability. The display provides gain setting and reports of internal amplifier status. Special features include a gain control and input overdrive protection.

All amplifier control functions and status indications are available remotely in GPIB/IEEE-488 format, RS-232 hardwire and fiber optic, USB, and Ethernet. The bus interface connector is located on the back panel and positive control of local or remote operation is assured by a keylock on the front panel of the amplifier.

The Model 20S4G18 is designed to have low spurious signals, linearity and is extremely load tolerant which enables it to be used in many RF applications such as: RF susceptibility testing, antenna/component testing, and communication technology testing. It can be used as a test instrument covering multiple frequency bands and is suitable for a variety of communication technologies such as CDMA, W-CDMA, TDMA, GSM, UWB, WiMAX etc.

 

Features

  • Solid State Broadband
  • Mismatch Tolerant
  • Modulation Capability
  • Digital Control Panel
  • Automatic Primary Power Selection
  • RF Input Leveling Circuit – Overdrive Protection
  • Over Temperature Protection
  • Standard Remote Interfaces
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Specifications

RATED POWER OUTPUT

(5-18 GHz) 20 watts minimum

(4-5 GHz) 12 watts minimum

POWER OUTPUT @ 3dB COMPRESSION

Nominal

25 watts

Minimum

(5-18 GHz) 20 watts

(4-5 GHz) 12 watts

POWER OUTPUT @ 1dB COMPRESSION

Nominal

22 watts

Minimum

(5-18 GHz) 18 watts

(4-5 GHz) 10 watts

FLATNESS @RFin= –20dBm

±3.0 dB typical

±4.0 dB maximum

FREQUENCY RESPONSE

4.0-18 GHz instantaneously

INPUT FOR RATED OUTPUT

1.0 milliwatt maximum, 0 dBm

GAIN (at maximum setting)

44 dB minimum (5-18) GHz, 42 dB min (4-5 GHz)

GAIN ADJUSTMENT (Continuous Range)

10 dB minimum (4096 steps remote)

INPUT IMPEDANCE

50 ohms, VSWR 2.5:1 maximum

OUTPUT IMPEDANCE

50 ohms, nominal

MISMATCH TOLERANCE

100% of rated power without foldback. Will operate without damage or oscillation with any magnitude and phase of source and load impedance.

MODULATION CAPABILITY

Will faithfully reproduce AM, FM, or pulse modulation appearing on the input signal

HARMONIC DISTORTION

Minus 20 dBc max at 20 watts (5-18 GHz); 12 watts (4-5 GHz)

THIRD ORDER INTERCEPT POINT

49 dBm typical

PRIMARY POWER

(selected automatically)

90-132, 180-264 VAC

50/60 Hz, single phase

<600 watts maximum

CONNECTORS

RF INPUT & OUTPUT

Precision N female, rear

REMOTE INTERFACES

IEEE-488

24 pin female

RS-232

9 pin Subminiature D (female)

RS-232 (Fiber-optic)

Type ST

USB 2.0

Type B

Ethernet

RJ-45

SAFETY INTERLOCK

15 Pin Subminiature D

COOLING

Forced air (self contained fans)

SIZE (W x H x D)

50.3 x 24.9 x 54.6 cm, 19.8 x 9.8 x 21.5 in

WEIGHT (approximate)

36 kg (79 lbs)

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