ELVA-1 IMPATT Active Frequency Multipliers

ELVA-1 series IMPATT Active Frequency Multipliers (IAFM) are really unique devices, providing outstanding performance in terms of high efficiency and high output power. Available in multiplication factor up to 25 in one device, they cover the output frequency range of 20 to 180 GHz using a centimeter-wave range source. They are capable of handling very high input power without damage. Different IAFM’s would operate with the same centimeter-wave range pumping source. For example, in the picture above, you can see the pumping source (20 mW, 7.2775 GHz) and three different multipliers: IAFM-28 (5th harmonic, 36.3875 GHz), IAFM-15 (8th harmonic, 58.2200 GHz), and IAFM-10 (13th harmonic, 94.6075 GHz). The phase and amplitude stability of the output signal are defined by the quality of the pumping source. It is possible to achieve Hz resolution at 150 GHz using a state-of-the-art synthesized cm-wave source. The frequency multipliers are designed as a module that consists of a centimeter-wave high-power preamplifier, the multiplier itself, a band-pass filter, and an isolator. A current stabilizer is included for reliable, trouble-free operation. The band-pass filter rejects the side band noise of the source at about -50 dB. That allows the device to be used as a low-noise solid-state LO if the intermediate frequency is higher than the frequency of rejection. The input of multiplier is a coaxial connector, and the output is a waveguide flange