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Chip antennas are the most commonly used alternative for surface-mounted designs, hence the abbreviation SMD antennas.
Fremont, CA: Since the antenna is one of the most critical components of a wireless system, it must work properly. Because the antenna's position is crucial to good wireless performance, its positioning within the system should not be made in the heat of the moment. The proximity of other components can also compromise the antenna's signal, affecting how well the device transmits and receives data. For good radiofrequency (RF) efficiency, it is best to plan component and architecture layouts. Here are a few factors to have an eye on.
Location Matters the Most
Before setting out all of the other parts, determine where you want the antenna to go on the circuit board. Chip antennas are the most commonly used alternative for surface-mounted designs, hence the abbreviation SMD antennas. To radiate, SMD antennas need a ground plane. Since each antenna has its specific radiation pattern and specifications, it is inevitable to consider its form and dimensions.
. The clearance areas around the antenna must be planned, as putting other components too close to the antenna will interfere with the antenna signal.
Specifications for Ground Planes
Take notice of how the ground plane of the antenna is constructed. SMD antennas radiate using a ground plane, which must be the right size and length. To ensure that the antenna performs properly in-situ, adhere to the ground plane specifications specified in the manufacturer's datasheet.
Some SMD antennas are available in left and right models and antenna designs for corner positions. One of these options can allow you to keep the antenna away from the individual while also better accommodating the design's ground plane requirements.
Transmission Lines and Matching
To ensure that energy transfer from the radio to the antenna is efficient, the antenna, its feed trace, and the radio transceiver must all operate at the same impedance (typically 50 ohms). If the impedance varies along this line, matching circuits, such as the -matching topology, can be tuned using lumped element inductors and capacitors to carry the antenna and radio to the same impedance.
A design can include multiple antennas, such as a Wi-Fi antenna and a Bluetooth antenna. As this occurs, the signals from one antenna can interfere with or detune the other, so it is critical to keep them apart to avoid interference.
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