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  • Oct. 22, 2009
    article
    Microwaves and RF

    50-V LDMOS Transistors Target TV Broadcast Transmitters

    TO SERVE TV TRANSMITTERS employing both analog and digital modulation formats, the MRF6V3090N RF power LDMOS transistor delivers 90 W peak output power at 1-dB compression with greater than 40 percent efficiency through the ultra-high-frequency ......More
  • Oct. 22, 2009
    article
    Microwaves and RF

    Data Converters Process RF/MW Signals

    The latest generation of analog-to-digital converters (ADCs) and digital-to-analog converters (DACs) provide performance in line with communications bandwidths and modulation requirements....More
  • Oct. 22, 2009
    article
    Microwaves and RF

    Digital RF Processor Serves Plethora Of Cellular Systems

    Given the need to cover multiple frequency bands in wireless handsets, the digital RF processor (DRP) offers many practical benefits to traditional receiver/transmitter approaches....More
  • Oct. 22, 2009
    article
    Microwaves and RF

    RF Interface Front End Operates To 100 MHz 800 To 2400 MHz

    TO MEET THE NEEDS OF APPLICATIONS like remote medical reading and pet identification, a new integrated circuit (IC) spans 50 Hz to 100 MHz. The RF interface front end offers a maximum receive data rate of 120 kb/s and a maximum transmit data rate ......More
  • Oct. 22, 2009
    article
    Microwaves and RF

    Multimode Transceiver Eliminates SAW Filters

    This highly integrated wireless transceiver module offers an innovative SAW-less front end and standard programmable 3G DigRF interface to cover a wide range of 3G standards....More
  • Oct. 22, 2009
    article
    Microwaves and RF

    Some Older ICs Don't Fade Away

    Lansdale Semiconductor has established a strong reputation by building a large number of older but still-needed integrated circuits for commercial and military applications that are no longer supported by original manufacturers....More
  • Oct. 22, 2009
    article
    Microwaves and RF

    GPS Chip Offers 160-dBm Tracking Sensitivity

    TO SATISFY GLOBAL POSITIONING SYSTEM (GPS) solutions' demand for higher sensitivity, long battery life, and instant location capture, the u-blox 6 CMOS chip vows to enable significantly extended battery life. By extending the last chip ......More
  • Sep. 21, 2009
    article
    Microwaves and RF

    Integrated Devices Arm Infrastructure Radios

    These highly integrated circuits combine PLLs, VCOs, modulators, and mixers using an advanced SiGe BiCMOS process to save space without sparing electrical performance....More
  • Sep. 21, 2009
    article
    Microwaves and RF

    Modify MOSFET Models For Nonlinear Quantification

    Using a unique table-based approach, it is possible to quantify nonlinear distortion in MOSFET device models where each of the transistors nonlinear parameters are independently represented....More
  • Aug. 26, 2009
    article
    Microwaves and RF

    Sources Shave Phase NoiseFor Millimeter-Wave Applications

    Device-level improvements are helping to lower phase noise in high-frequency sourceseven when multiplied to millimeter-wave frequencies....More
  • Aug. 26, 2009
    article
    Microwaves and RF

    MMIC Limits Noise Figure To 3 dB At 4 GHz

    WITH LOW INTERMODULATION distortion from 50 MHz to 6 GHz, the PHA-1+ monolithic microwave integrated circuit (MMIC) may be used as a replacement amplifier in high-dynamic-range systems like linearized transmitters and receivers. Usually, this ......More
  • Aug. 26, 2009
    article
    Microwaves and RF

    ASIC Processes UWB Baseband Signals

    IMPULSE-RADIO ULTRA WIDEBAND (IR-UWB) targets low data rates in the range of 0.1 to 10.0 Mb/s. Recently, an application-specific integrated circuit (ASIC) for IR-UWB baseband signals was realized and characterized by David Barras, George von ......More
  • May 20, 2009
    article
    Microwaves and RF

    Receiver Module Supports Data Links To 64 kb/s

    WHEN USED IN CONJUNCTION with the matching TX3B-869-64 transmitters, the RX3G ultra-high-frequency (UHF) radio data-receiver device facilitates the implementation of wireless infrastructure that can support speeds of 64 kb/s and transmission ......More
  • May 20, 2009
    article
    Microwaves and RF

    Modulator Combines Four Devices To Cover 950 To 1575 MHz

    TYPICALLY, BROADBAND-SATELLITE-COMMUNICATION designs required a variety of RF integrated circuits (ICs) to form an intermediate-frequency (IF) signal path. In contrast, the ADRF6750 modulator integrates an analog in-phase/ quadrature (I/Q) ......More
  • May 20, 2009
    article
    Microwaves and RF

    Agile Sources Reach 50 GHz

    These fast-switching frequency synthesizers deliver excellent spectral purity and flexible sweep functions in a choice of six models with bandwidths as wide as 50 GHz....More
  • Mar. 19, 2009
    article
    Microwaves and RF

    Recalling Early GaAs MMIC Developments

    Modern low-cost multifunction GaAs MMICs have roots in early devices fabricated from considerably smaller wafers and targeted largely at the needs of military applications....More
  • Feb. 24, 2009
    article
    Microwaves and RF

    Process Technologies Enable Performance Leaps

    To meet the size, integration, and performance requirements of next-generation communications and defense application, companies are leveraging unique and even proprietary, process technologies....More
  • Feb. 24, 2009
    article
    Microwaves and RF

    Linearization Technique Suppresses Third-Order Intermodulation

    To satisfy the needs of low-cost wireless terminals, many single-chip RF receivers have been developed with CMOS technology. In the presence of strong interferers, however, the third-order nonlinearity of an RF receiver front end generates third-order ......More
  • Jan. 26, 2009
    article
    Microwaves and RF

    Wireless Technologies Merge On Future ICs

    WELLINGBOROUGH, UKThe inclusion of multiple wireless technologies on a single integrated circuit (IC) is becoming increasingly common. Broadcom's recently announced IEEE 802.11n WiFi, Bluetooth, and FM combination has ensured that this issue ......More
  • Dec. 12, 2008
    article
    Microwaves and RF

    ULP 2.4-GHz Chip Fits 4-x-4-mm Package

    ON A SINGLE CHIP, a new solution for the ultra-low-power (ULP) wireless market runs both the RF protocol stack and application layer. The nRF24LE1 system-ona- chip (SoC) integrates the nRF24L01+ 2.4-GHz transceiver core along with a ......More
  • Dec. 12, 2008
    article
    Microwaves and RF

    Packaged MMICs Cover X-Band Systems

    THE 8-TO-12-GH X-BAND is home to many communications and radar technologies. To support those ever-evolving application areas, some packaged highpower- amplifier, monolithic-microwave integrated circuits (MMICs) provide moderate output power ......More
  • Dec. 12, 2008
    article
    Microwaves and RF

    CMOS LNA Operates In Subthreshold Region

    BECAUSE THE LNA IS THE FIRST STAGE of a receiver system, an LNA's noise figure will dominate a receiver's overall performance. The LNA should therefore add little noise to the next stages while providing 50-O impedance match for maximum power ......More
  • Dec. 12, 2008
    article
    Microwaves and RF

    Video Amplifiers Consume Less Than 12 mA

    AT 0.60 V/(H )0.5 input voltage noise performance, a new pair of high-speed video amplifiers claims to provide 30 percent less noise than the closest competitor in their class. Dubbed the CLC1001 and CLC1002, these amplifiers consume less than ......More
  • Nov. 12, 2008
    article
    Microwaves and RF

    1-V Transceiver SoC Serves Biotelemetry Applications

    Wireless technology has enabled biotelemetry applications that monitor vital signs like temperature and heart rate. At the heart of these applications are wireless body sensor networks, which comprise human-body-worn sensor nodes. These ......More
  • Oct. 15, 2008
    article
    Microwaves and RF

    Setting Strategies For Transmission Lines

    In building a strategy for effective integrated-circuit design, it is important to understand the characteristics of different printed transmission lines....More

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