SOLID STATE POWER AMPLIFIER LINEARIZER & DRIVER KEY FEATURES > K-Band Design (17.7 GHz to 20.2 GHz) > > 10% improvement in efficiency > Gain Enhancement to complement SSPAs (customizable up to 4dB) > Phase Lag to complement SSPAs (customizable up to 60°) > Output Power to drive SSPAs (customizable up to 25 dBm) > 20 dB Typical Gain > DC Power: < 2.0 Watts > Weight: < 100 grams The SSPA (Solid State Power Amplifier) Linearizer/Driver is a wideband SSPA driver operating in the K-Band frequency ranges. Use of this linearizer typically improves SSPA efficiency by greater than 10% by an RF pre-distortion technique which increases the linear output power for SSPAs. In particular, the SSPA Linearizer/Driver contains a built- in amplitude and phase pre-distortion generator to produce gain expansion and phase lag. The pre-distortion characteristics have been designed to complement Gallium Nitride (GaN) SSPAs and may be custom-tuned to specific SSPA mask performance. Typical increases in linear output power are between 1 dB and 3 dB. The linearizer incorporates output gain control to compensate for the gain variation of the SSPA with frequency. Gain may be varied through the command interface. The linearizer is constructed using thin film amplifier, attenuator, equalizer, linearizer, and control circuits. The thin film modules are enclosed in an aluminum laser-sealed hermetic housing. The housing has two Super SMA female RF connectors and a 15 pin Micro-D connector for DC/Command interface. The SSPA Linearizer is available on either a small four hole baseplate or can be mounted using the 4X #2-56 tapped holes on the bottom of the unit. SPACE GRADE SSPA LINEARIZER/DRIVER SPECIFICATIONS Parameter Units Specification Frequency Range GHz 17.7 to 20.2 Output Power Level dBM Up to 25 dBm (22 dBm Typ.) Gain Expansion dB 0 to 4 (2 dB Typ.) Phase Lag deg Up to 60° (10° Typ.) Output Gain Control Range dB 6 Input Power Level at Max Rated Power dBm -20 to +5 ( 0 dBm Typ.) RF Susceptibility dBi -75 RF Connectors mm Super SMA Female DC Voltage V +8.0 DC Power W 1.0 Nom., 1.5 Max. Mass g < 100