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  • Aug. 10, 2012
    Article

    Data Converters Drive RF Designs

    Data converters are an "end point" on a system block diagram for many RF/microwave designers—the points at which analog signals are converted to digital bits and back again. In recent years, those data converters have gotten faster and boast higher resolution, allowing them to take on a greater portion of receiver and transmitter block diagrams....More
  • Jun. 13, 2012
    article
    Microwaves and RF

    SS Method Employs Novel Encryption

    This spread-spectrum communications approach is based on true random sequence encryption for improved data-transfer efficiency and enhanced security compared to traditional systems....More
  • Jun. 13, 2012
    article
    Microwaves and RF

    CRLH-TLs Help Miniaturize PCBs

    These innovative circuit structures can help achieve lower resonant frequencies in microstrip circuits without having to increase the length or size of the circuits, and without having to added lumped circuit elements....More
  • Jun. 13, 2012
    article
    Microwaves and RF

    Novel LNA Cuts Noise, Not Gain

    This two-stage amplifier design employs an LC network to eliminate the customary source-degrading inductor, achieving low noise figure with high gain at 5.8 GHz....More
  • Jun. 13, 2012
    article
    Microwaves and RF

    SIR Cells Support UWB Lowpass Filter

    This microstrip lowpass filter uses compact folded resonator cells to achieve an extremely broadband response with sharp rolloff characteristics in a small circuit size....More
  • May 17, 2012
    article
    Microwaves and RF

    Wireless System Assists Libraries

    Through the use of RFID tags placed in books and a reader mounted in a central counter, this system allows wireless, hands-free check-in and check-out of library books....More
  • May 17, 2012
    article
    Microwaves and RF

    Optimizing PLL Performance Levels Part 2

    Designing a PLL synthesizer for modern mobile communications systems involves achieving the proper balance among a number of tradeoffs, including spurious levels and frequency switching speed....More
  • May 17, 2012
    article
    Microwaves and RF

    Low-Power Mixer Hits High Intercept

    Fabricated with 0.18-m RF CMOS technology, this downconversion mixer uses a current-reuse bleeding technique to achieve high linearity, while consuming only 6 mW from a +1.2-VDC supply....More
  • May 17, 2012
    article
    Microwaves and RF

    Predict PLL Reference Spurs

    Reference spurious signals can plague even the most carefully designed phase lock loops, but this analysis technique shows how to predict and avoid these unwanted spurious products....More
  • May 17, 2012
    article
    Microwaves and RF

    SIW And CDGS Combine For BPF

    By combining lowpass and highpass filters, it is possible to design and fabricate an extremely compact bandpass filter with relative bandwidth that exceeds 78%....More
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