EAN Equipamento de Antenas

ANTENNA UNIT - EAN

SISTEMAS INOVADORES

The "EAN" unit is the antenna unit designed by EDIBON. It covers the basic principles about antennas. It allows to learn how to perform the most common antenna measurements (radiation pattern, SWR, etc.). It also allows students to understand when it is necessary to add matching components to reach the correct matching between the antenna, the transmission line and the generator in order to improve the performance of the system.

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NOTÍCIAS RELACIONADAS

Descrição Geral

The Antenna Unit, "EAN", is a complete and affordable unit and no extra hardware is required for complete all the practice set.

The "EAN" allows students to learn how to perform the essential antenna measurements: radiation pattern with the measure of the azimuth and elevation plots (electrical and magnetic planes), real time signal level, standing wave ratio (SWR), study the effectiveness of antenna through a wide range of frequencies (bandwidth), directivity and antenna’s power gain.

The "EAN" allows students to learn how to perform the essential antenna measurements: radiation pattern with the measure of the azimuth and elevation plots (electrical and magnetic planes), real time signal level, standing wave ratio (SWR), study the effectiveness of antenna through a wide range of frequencies (bandwidth), directivity and antenna’s power gain. The unit is divided into different blocks of elements:

  • RF-Generator and SWR-Meter (in metallic box):
  • RF-Generator: It generates a signal whose frequency can be controlled using the potentiometer. The selected frequency (MHz) is displayed on a digital display. The output of this block should be connected to the antenna to be characterized.
  • SWR-Meter: It allows to measure the matching quality between the RF-generator and the antenna. In order to simplify the operation with the "EAN" unit, the SWR-Meter is internally connected to the RF-generator and the output. The SWR-meter displays the forward and reflected power and the SWR.
  • Transmitter Antenna Tower: It is used to fix the antenna to be characterized. The transmitter tower has two holders to fix the antenna to characterize on horizontal and vertical positions. There is also a degree wheel to adjust the orientation of the antenna.
  • Receiver Antenna Tower. It contains the following elements:
  • Receiver Tower: It is the place where the receiver antenna should be fixed. The receiver antenna consists of a logarithmic antenna included in the "EAN-1. Antennas Kit 1" suitable for measuring a wide range of frequencies.
  • Spectrum Analyzer: It is the instrument that takes measures of the strength of the incoming signal.
  • EAN-1. Antennas Kit 1: the "EAN" unit is provided with a set of antennas. The kit includes the most common types of antennas. The antennas are constructed in such a way to allow students to test them in an easy and quick way. The common parts of every antenna are: a fixing system to fix the antenna to the transmitter tower and a SMA connector to connect it to the RF generator.

EXERCÍCIOS E PRÁTICAS GUIADAS

EXERCÍCIOS PRÁTICOS GUIADOS INCLUÍDOS NO MANUAL

  1. Familiarization with the trainer.
  2. Basic principles of radiation pattern parameters measurement.
  3. Distance effect over radiation power.
  4. Study of the surrounding signals.
  5. Direction of maximum radiation and gain of an antenna.
  6. Analysis of the antenna bandwidth.
  7. Study of monopole antennas.
  8. Study of antennas with ground planes.
  9. Study of dipole antennas.
  10. Study of loop antennas (circular, square and diamond loop antennas).
  11. Study of circular polarization helical antennas.
  12. Study of Yagi-Uda antennas.
  13. Study of microstrip patch antennas.
  14. SWR measurement and conversion in Return loss and Reflected Power.
  15. Improvement of the performance of a system.

Additional practical possibilities to be done with the optionalAntennas Kit (EAN-2):

  1. Study of horn antenna.
  2. Study of parabolic reflector.
  3. Basic principles of wide bandwidth antennas: log-periodic antenna.
  4. Basic principles of wide bandwidth antennas: discone antenna.
  5. Basic principles of microstrip patch array antenna.

EXERCÍCIOS MAIS PRÁTICOS A SEREM FEITOS COM A UNIDADE

  1. Several other exercises can be done and designed by the user.

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