How to choose the perfect antenna in 3 steps with SOS electronic


Selecting the right antennas is a critical step. An antenna must be compatible with the receiver specifications and meet device requirements. Our long-time partner, 2J Antennas, has prepared an overview of areas that you might find interesting in case you are looking for the right antenna for your project.

1. Identify your needs

What is the mounting type that is suitable to meet your application requirements?

In order to select the most optimized antenna, begin the process by confirming if the antenna will be integrated:

  • Internally, for example, mobile device
  • Externally which often comes with housing for protection in outdoor application and installation

Our producer 2J Antennas offers a large selection for internal and external single and combination antenna mounting types.

 

Internal Single and Combination Antennas Mounting types

 

  • ADHESIVE MOUNT FLEXIBLE
    Small form factor antennas with flexibility for curved installation in devices.
  • ADHESIVE MOUNT RIGID
    This mounting type is ideal for flat surface installations, using an industrial-grade adhesive layer.
  • SURFACE MOUNT CERAMIC
    Due to high-quality ceramic, this surface mount is ideal for a wide range of environments and is compatible with surface mount technique (SMT), allowing for easy PCB integration into small devices.

  • SURFACE MOUNT FIBERGLASS
    Fiberglass material allows for the small antenna sizes while offering cost-effective solutions to device designers and is compatible with surface mount technique (SMT) installation.

  • THRU-HOLE MOUNT CERAMIC
    The thru-hole mount is typically in the center of the antenna offering extra security for installation for in-device integration.
  • SNAP-IN MOUNT MODULE
    Locks the antenna in place, prevents unwanted rotation and facilitates rapid antenna installation and replacement
  • SCREW MOUNT MODULE
    Modular antennas that can be installed on PCB standoffs

External Single and Combination Antennas Mounting types

  •  CONNECTOR MOUNT
    Typical for antennas that require direct PCB mounting solution on devices

  • ADHESIVE MOUNT
    Using a high-grade adhesive option makes it ideal for quick mounting applications

  • SCREW MOUNT
    Advantage is a secure and permanent installation also in outdoor extreme conditions.

  • MAGNETIC MOUNT
    Offers flexibility for temporary installation, strong enough for permanent installations

  • WALL MOUNT
    Can be used for indoor or outdoor installations

  • POLE MOUNT
    recommended for marine or construction applications.

  • MAGNETIC/ADHESIVE MOUNT
    Offers flexibility for temporary installation, strong enough for permanent installations.

  • WALL MOUNT
    Can be used for indoor or outdoor installations

  • POLE MOUNT
    recommended for marine or construction applications

  • MAGNETIC/ADHESIVE MOUNT
    Offers the option of magnetic or adhesive mounting for external installations, especially for non-magnetized metal surfaces

  • WALL/ADHESIVE MOUNT
    Offers the option of wall or adhesive mounting for building wall installations

  • VELCRO/ADHESIVE MOUNT
    a solution for temporary use of the antennas

Frequency and Wavelengt

What is the frequency and why is it so important? The wireless band designated for a device to operate through is called frequency. Antennas are designed to have a range of frequencies to operate within. As an example, if a device is tuned to use Band 17(700MHz), the corresponding antenna must operate within 704 and 746 MHz for transmission and reception.

Are you sure, you know what is the wavelength? The wavelength is the distance radio waves travel during one cycle. Designing an antenna quarter wavelength long will provide the best efficiency and deliver the highest signal quality.

Quarter wavelength is calculated with the following formula:

Quarter Wavelength(mm) = (75/ FreqMHz)*1,000

IMPORTANT: 4GLTE and 3G/2G antennas have the potential to be used in applications requiring ISM standards. 4GLTE range specification of 698-960MHz and 3G/2G from 824-960MHz, meaning the ISM 868MHz standards operate from 863-870MHz and are located within the 4GLTE and 3G/2G range. The same applies for ISM 915MHz standards that operate within 902-928MHz, or dual band 868/915MHz.

To ensure proper compatibility, please contact our SOS electronic sales department. For further analysis, we will contact directly the producer, 2J antennas.


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