Mixers and amplifier

Hittite Microwave has introduced two SMT MMIC mixers and a medium power amplifier for applications in microwave radios, sensors and test equipment from 6 to 31 GHz.

Providing good wideband performance, the HMC144LC4 is a high IP3 double-balanced MMIC passive mixer which can be used as an up or downconverter from 6-20 GHz. Broadband operation and 35 dB LO to RF isolation are provided by on-chip baluns which require no external components or DC bias.

The HMC264LC3B is a 21-31 GHz sub-harmonically pumped (x2) MMIC mixer with an integrated LO amplifier. The 2LO/RF isolation is 30 dB, eliminating the need for additional filtering. The mixer operates from a single +3 or +4 V bias, and requires only -4 to +4 dBm of LO drive. The RF and LO ports are DC blocked and matched to 50 ohm for ease of use while the IF covers DC to 6 GHz.

Combining high gain and linearity, the HMC498LC4 is a high dynamic range GaAs PHEMT MMIC medium power amplifier. Operating from 17-24 GHz, the amplifier provides 22 dB of gain and +26 dBm of saturated power at 23% PAE. Noise figure is 4 dB while output IP3 is +36 dBm enabling the device to function as a low noise front end as well as a driver amplifier.

Housed in leadless SMT packages, samples and evaluation PC boards are available from stock and can be order online. Released data sheets are available online at www.hittite.com