To: SteveG who wrote (3781 ) 2/10/1998 12:59:00 AM From: SteveG Respond to of 12468
<A> HP Introduces GaAs ICs for Microwave and Millimeter-Wave Communication Links SANTA CLARA, Calif.-- Three New Compact MMIC Building Blocks Simplify Assembly of Point-to-point and Point-to-multipoint Transceivers Hewlett-Packard Company today introduced three new GaAs microwave monolithic integrated circuit (MMIC) building blocks particularly suited for microwave or millimeter-wave point-to-point and point-to-multipoint wireless communications systems, including commercial Local Multipoint Distribution Services (LMDS) and Local Multipoint Communications Systems (LMCS). The announcement was made here at the 1998 Wireless Symposium. The products are two amplifiers for added power-handling capability in transmitters and a double-balance mixer with integrated local oscillator (LO) amplifier. The HMMC-3040 is a broadband 20GHz to 43GHz versatile double-balanced mixer with an integrated high-gain LO amplifier. It can be used as an up-converter or as a down-converter in microwave/millimeter-wave transceivers. The LO amplifier also can be biased to function as a frequency multiplier and can enable harmonic mixing of an LO source. The MMIC provides repeatable conversion-loss (requiring no tuning), making it suitable for automated assembly processes. It is supplied as a 1.8mm2 chip. The HMMC-5032 and HMMC-5033 are power amplifiers designed for use in wireless transmitters that operate within the 17.7GHz to 32GHz range. The HMMC-5032 provides +22 dBm of output power (P-1dB) and 8 dB of small-signal gain from a small (1.1mm2 chip), easy-to-use device. The HMMC-5033 provides +26 dBm of output power (P-1dB) and 18 dB of small-signal gain at 28GHz. It is supplied as a 3.1mm2 chip. Both amplifiers are designed to be driven by the HMMC-5040 (20GHz to 40GHz) or by the HMMC-5618 (5.9GHz to 20GHz) MMIC amplifier for linear transmitter applications. All three MMICs feature input and output matching circuitry for operation in standard 50ohm environments. Both power amplifiers have integrated output power detectors. HP's Microwave Technology Division in Santa Rosa, Calif., where these particular devices are manufactured, has three depletion-mode processes, with operating frequencies ranging up to 50GHz in production. HP's GaAs processes utilize the following: -- molecular beam epitaxy (MBE); -- ion implantation; -- e-beam, stepper-based UV and deep-UV lithography; and -- in-process and final RF wafer-level testing. Post-wafer fab processing includes the following: -- sample and 100 percent on-wafer testing to 50GHz; -- SAW separation; and -- visual inspection. U.S. PRICING AND AVAILABILITY Units: 1,000 to 2,499 HMMC-3040 $59.50 per unit HMMC-5032 48.50 per unit HMMC-5033 100 per unit The three new MMICs are available now. ABOUT HP HP is the official information-technology hardware and maintenance supplier to the 1998 World Cup soccer tournament. Hewlett-Packard Company is a leading global provider of computing, Internet and intranet solutions, services, communications products and measurement solutions, all of which are recognized for excellence in quality and support. HP has 121,900 employees and had revenue of $42.9 billion in its 1997 fiscal year. Information about HP and its products can be found on the World Wide Web at hp.com .