Tektronix Encore

Amplifier Research 200T8G18
Microwave Amplifier, 7.5 - 18 GHz, 200W

Amplifiers - RF and Microwave >> Above 1 GHz and 101 Watt to 999 Watt >> Microwave Amplifier, 7.5 - 18 GHz, 200W
Rent Used Test Equipment
Manufacturer: Amplifier Research
Model: 200T8G18

Amplifier Research 200T8G18 Microwave Amplifier, 7.5 - 18 GHz, 200W

Rent Test Equipment

Product Overview

Rent Amplifier Research 200T8G18 TWT Amplifier (Call for Availability):

The Amplifier Research 200T8G18 is a self contained, forced air cooled, broadband traveling wave tube (TWT) microwave amplifier designed for applications where instantaneous bandwidth and high gain are required. A reliable 250 watt TWT provides a conservative 200 watts minimum at the amplifier output flange. 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, RF output sample port, plus monitoring of TWT helix current, cathode voltage, collector voltage, external video pulsing, 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 external video pulsing feature reduces prime power use for pulse applications.


Housed in a stylish contemporary cabinet. This unit is designed for benchtop use, but can be removed from the cabinet for rack mounting. The Amplifier Research 200T8G18 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.


Functions and Specifications of the Amplifier Research 200T8G18 TWT Amplifier Include:


POWER (fundamental), CW @ OUTPUT FLANGE:

Nominal: 267 watts
Minimum: 200 watts
Linear @ 1dB Compression: 50 watts minimum


FLATNESS: ±12 dB maximum, equalized for

±5 dB maximum at rated power


FREQUENCY RESPONSE: 7.5-18 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 fold back protection at

reflected power exceeding 40 watts. Will operate without

damage or oscillation with any magni- tude and phase of

source and load impedance. May oscillate with unshielded

open due to coupling to in- put. 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: (pulse on) Minus 70 dBm/Hz

(maximum), Minus 72 dBm/Hz (typical)

(pulse off) Minus 140 dBm/Hz (typical)


HARMONIC DISTORTION: Below 10 GHz, minus 5 dBc max.,

minus 8 dBc typ. 10-12 GHz, minus 8 dBc max.,

minus 12 dBc typ. Above 12 GHz, minus 20 dBc max.,

minus 30 dBc typ.



50/60 Hz single phase,

2.0 KVA maximum


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


SIZE AND WEIGHT: See Model Configurations




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