The HMC158 devices are miniature frequency doublers that are available in a monolithic microwave integrated circuit (MMIC) die (HMC158) and a nonhermetic, ceramic surface mount package (HMC158C8). Suppression of undesired fundamental and higher order harmonics is 40 dB typical with respect to input signal level. The doublers use the same diode/balun technology used in Hittite MMIC mixers, feature small size, and require no dc bias.ApplicationsWireless local loopLocal multipoint distribution systems (LMDS)Very small aperture terminal (VSAT)Point-to-point radiosUnlicensed National Information Infrastructure (U-NII) and high performance radio LAN (HiperLAN)Test equipment