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Amplifier Research 20S4G18 RF Power Amplifier; 20 watt CW, 4 to 18 GHz

Model Number: 20S4G18

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Amplifier Research 20S4G18 RF Power Amplifier; 20 watt CW, 4 to 18 GHz

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Amplifier Research 20S4G18 RF Power Amplifier; 20 watt CW, 4 to 18 GHz

The Model 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 buss 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.

Test Standards
  • Rated Power Output: (5-18 GHz) 20 watts maximum, (4-5Ghz) 12 watts maximum
  • Power Output @ 3dB Compression: 25 watts(Nominal) and 20/12 watts(Minimum)
  • Power Output @ 1dB Compression: 22 watts(Nominal) and 18/10 watts(Minimum)
  • Flatness: ±3.0 dB typical and ±4.0 dB maximum
  • Frequency Response: 4.0 – 18 GHz instantaneously
  • Input for Rate 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
  • 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 maximum at 20 watts (5-18 GHz), 12 watts (4-5 GHz)
  • Third Order Intercept Point: 49 dBm typical
  • Primary Power (select automatically): 90-132/180-264 VAC, 50/60Hz single phase, <600 watts maximum
  • Safety Interlock: 15 Pin Sub miniature D
  • Cooling: Forced air (self contained fans)
Standard Accessories Included
All Standard Accessories

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