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Amplifier Research 200T26z5G40A TWT Amplifier 26.5 GHz 40 GHz 200W

Description

Amplifier Research 200T26z5G40A 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 subsystem provides a conservative 200 watts minimum at the amplifier output connector. Stated power specifications are at the 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, 0 dBm input, VSWR protection, gain control, forward and reflected RF output sample ports, 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. The rated power is developed by efficiently power combining the outputs from two 120 watts (nominal) microwave tubes that are factory matched in gain and phase.

Housed in a stylish contemporary cabinet, the unit is designed for benchtop use but can be removed from the cabinet for rack mounting.

The Model 200T26z5G40A 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. This sub-octave amplifier features moderate harmonic content.

Features

  • Broadband
  • Forced air cooled
  • Digital display
  • AM, FM or pulse modulation
  • IEEE-488 (GPIB) interface
  • VSWR protection
  • Gain control
  • 0 dBm input
  • RF output Sample ports
  • Auto sleep

Specifications

POWER (fundamental), CW, @ OUTPUT CONNECTOR

Nominal

225 watts

Minimum

200 watts

Linear @ 1 dB Compression

50 watts minimum

FLATNESS

± 10 dB maximum

FREQUENCY RESPONSE

 26.5 - 40 GHz instantaneously

INPUT FOR RATED OUTPUT

1.0 milliwatt maximum

GAIN (at maximum setting) 

53 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 40 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.

VIDEO PULSE CAPABILITY

Pulse Width

0.1 microseconds min

Pulse Rate (PRF)

10 kHz max

Duty Cycle

Some restrictions apply. Contact AR with application requirements.

RF Rise and Fall

100 ns max (10% to 90%)

Delay

500 ns max from pulse input to RF90%

Pulse width distortion

200 ns max (50% points of output pulse width compared to 50% points of input pulse width)

Noise Power Density, (pulse off)

Minus 140 dBm/Hz (typical)

Pulse Off Isolation

80 dB minimum, 90 dB typical

Pulse Input

TTL Level, 50 Ohm nominal termination, high level enables RF when video pulsing mode is selected.

NOISE POWER DENSITY

Minus 70 dBm/Hz (maximum)

Minus 75 dBm/Hz (typical)

HARMONIC DISTORTION

Minus 20 dBc maximum

Minus 30 dBc typical

PRIMARY POWER

190-260 VAC, 50/60 Hz single phase, 3 kVA maximum

CONNECTORS

RF input

Type K female on rear panel

RF output

Type WR-28 waveguide flange on rear panel

RF output sample ports 

Type K female on rear panel

GPIB

IEEE-488 on rear panel

Interlock

DB-15 female on rear panel

Video

BNC female on rear panel

COOLING

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

WEIGHT(approximate)

91 kg, 200 lbs

SIZE (W x H x D)

50.3 x 43 x 81 cm, 19.8 x 17 x 32 in.

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