gnss

  1. H

    GNSS Receiver designed IC circuit noise issues

    Hello everyone I wanted to share with you the design of a 2-layer full GNSS board that I have recently developed using Direct RF sampling architecture. The board consists of several blocks, each equipped with SMA input/output connectors, as well as an SMA connection between VCC and GND to check...
  2. Restremanenz

    Chip Antenna Design for NEO-M9N

    Hello, I would like to develop a board with the GNSS module NEO-M9N. I would like to use a chip antenna. According to the data sheet, the impedance of 50 ohms does not have to be taken into account for the RF input signal. So I can draw a trace of any length and thickness. Or have I...
  3. H

    GPS receivers Front-End Design Problems

    I am designing a GPS L1(PWR=-160dBW) band Direct RF sampling receiver and the front-end: (passive antenna + LNA(21dB) + BGA1(30dB) + jumper + BPF(L1(fc=1575.42MHz,BW=15MHZ) + BGA2 (30dB) + BGA3(30dB) + VGA(-13.5 to +18 Gain Control in 0.5 dB Steps) ). all amplifiers are supplied with a +5 V...
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