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  1. RFID Tag and Reader Antennas

    RFID stands for Radio-Frequency Identification. The RFID device provides a unique identifier for that object and just as a bar code or magnetic strip the RFID device must be scanned to retrieve the identifying information.

    RFID System Working Principal

    A RFID system has three parts:

    A scanning antenna
    A transceiver with a decoder to interpret the data
    A transponder – the RFID tag – that has been programmed with information

    ...
  2. How should grounds and commons be connected to each other?

    by Bill Schweber on Analog IC Tips

    We have already looked briefly at Earth ground (if any), chassis ground, and commons (often misnamed as "grounds"). These do not exist as unrelated connections in a system. The issues related to connecting commons and ground is the subject of countless articles, academic papers, vendor application notes, anecdotes, and even books.

    There are many rules as to how to connect circuit commons to each other, to the chassis ground ...
  3. Helix (Helical) Antenna Design

    by , 13th March 2017 at 12:36 (Anil Pandey : Electronics Design and Simulations)
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    The helix antenna is a travelling wave antenna, which means the current travels along the antenna and the phase varies continuously. Helix antennas (also commonly called helical antennas) invented by John Kraus give a circular polarized wave. Helix antennas are referred to as axial-mode helical antennas. The benefits of this helix antenna are it has a wide bandwidth, is easily constructed, has real input impedance, and can produce circularly polarized fields. ...
  4. The Art of Electronics; 3rd edition review

    by Chris Francis

    In 1980, the book "The Art of Electronics" was published, written by Paul Horowitz and Winfield Hill. For many people, myself included, it became the first book you picked up when you needed to know anything related to analog electronics. It was intended as a course textbook but became a designers reference book for many people. In 1989 they brought out the second edition and so I replaced my first edition. It has been a long wait but in 2015 the third edition ...
  5. Printed Conformal Antennas Design

    by , 1st March 2017 at 03:46 (Anil Pandey : Electronics Design and Simulations)
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    In many applications pertaining to missile, satellite, spacecraft and aircraft a directive antenna mounted on a curved body is required. Conforming the antenna to the surface save space and is often essential for structural reasons. An antenna that conforms to a surface whose shape is determined by considerations other than electromagnetic; for example, aerodynamic or hydrodynamic called conformal Antenna. Microstrip antenna technology is most suitable ...
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