Hittite introduces two low noise GaAs PHEMT x2 active frequency multiplier chips. These broadband multipliers are suitable for use in LO multiplier chains in microwave and VSAT radios yielding reduced inventory count vs. traditional approaches. When driven with a 0 dBm signal, the HMC448 provides +11 dBm of typical output power and excellent Fo and 3Fo isolation of 20 dB with respect to the output level. The HMC448 has a output frequency range of 10 to 25 GHz. The HMC449 has an output frequency range of 27 to 33 GHz, providing +10 dBm of typical output power from a 0 dBm input signal, and Fo and 3Fo isolation of 34 dB and 17 dB respectively. The low additive phase noise of the HMC449 at -132 dBm/Hz helps the user maintain good system noise performance.
Hittite Microwave Corporation