»  Categories   »      Microwave Amplifier   »    Low Power Amplifier   »    High Frequency Amplifier   »    Broadband Amplifier   »    Amplifier   »    TWT Amplifier  

image enlarge

Amplifier Research 50T4G18A Microwave Amplifier 4.2 GHz 18 GHz 50W

Description

The Model 50T4G18A is a self contained, forced air cooled, broadband traveling wave tube (TWT) microwave amplifier designed for applications where wide instantaneous bandwidth, high gain and moderate power output are required. A reliable TWT provides a conservative 50 watts minimum at the amplifier output connector over most of the frequency range. Stated power specifications are at fundamental frequency.

The amplifier's front panel digital display shows forward and reflected output plus extensive system status information accessed through a series of menus via soft keys. Status indicators include power on, warm-up, standby, operate, faults, excess reflected power warning and remote. Standard features include a built-in IEEE-488 (GPIB) interface, 0dBm input, VSWR protection, gain control, RF output sample port, auto sleep, plus monitoring of TWT helix current, cathode voltage, collector voltage, heater current, heater voltage, baseplate temperature and cabinet temperature. Modular design of the power supply and RF components allow for easy access and repair. Use of a switching mode power supply results in significant weight reduction.

Housed in a stylish contemporary cabinet this unit is designed for benchtop use but can be removed from the cabinet for rack mounting. The Model 50T4G18A provides readily available RF power for a variety of applications in Test and Measurement, (including EMC RF susceptibility testing), Industrial and University Research and Development, and Service applications.

Features

  • Travelling Wave Tube Broadband Amplifier
  • Rated Output Power at 50 Watt minimum
  • Designed for instantaneous Bandwidth and High Gain requirements
  • Built-in IEEE-488 (GPIB) interface
  • 0dBm input
  • VSWR protection
  • Gain control
  • RF output sample port
  • Auto sleep

Specifications

POWER (fundamental), CW, @ OUTPUT CONNECTOR

Nominal

60 watts

Minimum

50 watts

Linear @ 1dB Compression

10 watts minimum

FLATNESS

±10 dB maximum, 4.2 - 18 GHz

FREQUENCY RESPONSE

4.2-18 GHz instantaneously

INPUT FOR RATED OUTPUT

1.0 milliwatt maximum

GAIN (at maximum setting)

47 dB minimum

GAIN ADJUSTMENT

(continuous range)35 dB minimum

INPUT IMPEDANCE

50 ohms, VSWR 2.0:1 maximum

OUTPUT IMPEDANCE

50 ohms, VSWR 2.5:1 typical

MISMATCH TOLERANCE

Output power foldback protection at reflected power exceeding 20 watts. Will operate without damage or oscillation with any magnitude and phase of source and load impedance. May oscillate with unshielded open due to coupling to input. Should not be tested with connector off.

MODULATION CAPABILITY

Will faithfully reproduce AM, FM, or pulse modulation appearing on the input signal. AM peak envelope power limited to specified power.

NOISE POWER DENSITY

Minus 80 dBm/Hz (maximum)

Minus 90 dBm/Hz (typical)

HARMONIC DISTORTION (at 50 watts)

4.2-4.5 GHz; Plus 2.5 dBc maximum, Minus 0 dBc typical

4.5-6 GHz; Plus 0.5 dBc maximum, Minus 1 dBc typical

6-8 GHz; Minus 4 dBc maximum, Minus 6 dBc typical

8-10 GHz; Minus 6 dBc maximum, Minus 9 dBc typical

Above 10 GHz; Minus 10 dBc maximum, Minus 15 dBc typical

PRIMARY POWER

99-260 VAC

50/60 Hz single phase,

800 VA maximum

CONNECTORS

RF input

Type N precision female on rear panel

RF output

Type N precision female on rear panel

RF output

sample port .Type N precision female on rear panel

GPIB

IEEE-488-(f)

Interlock

DB-15 female on rear panel

COOLING

Forced air (self contained fans), air entry and exit in rear.

SIZE (W x H x D)

19.8 x 6.5 x 27 in., 50.3 x 16.5 x 68.6 cm.

WEIGHT (approximate)

70 lbs, 32 kg

Standards

CISPR
CISPR 11
CISPR 14 - 1
CISPR 14 - 2
CISPR 14 - 2
CISPR 16 - 1
CISPR 16 - 2
CISPR 16 - 3
CISPR 16 - 4
CISPR 22
CISPR 24
IEC
IEC/TR EN 61000 - 1 - 1
IEC/TR EN 61000 - 2 - 1
IEC/TR EN 61000 - 2 - 3
IEC EN 61000 - 3 - 2
IEC EN 61000 - 3 - 4
IEC/TC EN 61000 - 3 - 5
IEC EN 61000 - 4 - 2
IEC EN 61000 - 4 - 3
IEC EN 61000 - 4 - 4
IEC EN 61000 - 4 - 5
IEC EN 61000 - 4 - 6
IEC EN 61000 - 4 - 7
IEC EN 61000 - 4 - 8
IEC EN 61000 - 4 - 9
IEC EN 61000 - 4 - 11
European
EN 50 081 part 1
EN 50 081 part 2
EN 55 011
EN 55 013
EN 55 014
EN 55 015
EN 55 020
EN 55 022
EN 55 024
EN 50 082 part 1
EN 50 082 part 2
EN 50 093
American
FCC Part 15
MIL-STD - 461E