THE new Ophir model 5303039D class broadband A/AB linear amplifier with a frequency range of 20 to 1000MHz is suitable for wide-band communications requiring receive/transmit functions in CW/AM/FM/PM and pulse modes. It is available from Westek Electronics Pty Ltd.
The Ophir 5303039D amplifier has exceptionally low noise power (kTB) where k is Boltzman's constant, T is absolute temperature and B the -3dB bandwidth).
The amplifier can be switched within 2μs to be at 20dB of kTB, making it suitable for electronic warfare applications.
The amplifier has a saturated output of typically 50W and can withstand input power of +20dBm.
Another feature is excellent harmonic performance having harmonics contributions of less then -20dBc at a power output of 30W.
Small signal gain exceeds +25dB and small signal response flatness is ±2.0dB max.
Spurious signal contribution is less than -60dBc at a power output of 30W.
The amplifier is supplied as a module suitable for cold-plate mounting and requiring only a single 28V dc power supply.
The amplifier is suitable for operation in ambient temperatures from 0ºC to +50ºC, up to 95% RH and to altitudes of 3000m.