Amplifier Research 120T40G45 TWT Amplifier : The Amplifier Research 120T40G45 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 125 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, 0dBm input, VSWR protection, gain control, forward and reflected RF output sample port, auto sleep, plus monitoring of TWT helix cur, cathode voltage, collector voltage, heater cur, 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 80 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 Amplifier Research 120T40G45 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. Functions and Specifications of the Amplifier Research 120T40G45 TWT Amplifier Includes: POWER (fundamental), CW, @ OUTPUT CONNECTORNominal: 140 wattsMinimum: 120 wattsLinear @ 1 dB Compression: 30 watts minimum FLATNESS: ± 5 dB maximum FREQUENCY RESPONSE: 40 – 45 GHz instantaneously INPUT FOR RATED OUTPUT: 1.0 milliwatt maximum GAIN (at maximum setting): 51 dB minimum GAIN ADJUSTMENT (continuous range): 35 dB minimum INPUT IMPEDANCE: 50 ohms, VSWR 2.0:1 maximum OUTPUT IMPED: 50 ohms, VSWR 2.5:1 typical MISMATCH TOLERANCE: Output isolator used to offer excellentmismatch tolerance up to reflected power of 120 watts..Will operate without damage or oscillation with anymagnitude and phase of source and load impedance. Mayoscillate with unshielded open due to coupling to input.Should not be tested with connector off. MODULATION CAPABILITY: Will faithfully reproduce AM, FM, orpulse modulation appearing on the input signal. AM peakenvelope power limited to specified power. NOISE POWER DENSITY:Minus 70 dBm/Hz (maximum)Minus 75 dBm/Hz (typical) HARMONIC DISTORTION: Minus 20 dBc typical PRIMARY POWER: 190-260 VAC50/60 Hz single phase 2 kVA maximum CONNECTORSRF input: Type 2.4 mm female on rear panelRF output: Type WR-22 waveguide flange on rear panelRF output sample ports: Type 2.4 mm female on rear panelGPIB: IEEE-488 on rear panelInterlock: DB-15 female on rear panelCOOLING: Forced air (self contained fans), air entry and exit in rearWEIGHT (approximate): 105 kg, 230 lbsSIZE (W x H x D): 50.3 x 43 x 76 cm, 19.8 x 17 x 30 in.     

• Amplifier Research 120T40G45 - Datasheet (63 kB)