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LoRa antenna PANEL 8 HELIUM SL 868 MHz 8dBi Sigfox, XBee, RFID. Z-WAVE

IP-G08-F8688-SL

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Interline antenna PANEL 8 HELIUM SL frequency 868 MHz LoRa Panel Antenna of 8dBi

Designed for very long distance connections with Helium - The People's Network - Interline PANEL 8 HELIUM SL is a carefully designed and built directional antenna that operates in the 867-870MHz unlicensed band. Interline PANEL 8 HELIUM SL is a tilted polarized antenna that allows better and more stable communication in difficult areas.

The No Line of Sight (NLOS) scenario is much more common and presents challenges for all types of wireless systems, especially those where one end of the link is mobile. When there is no clear line of sight, degradation will result from reflections, refraction, diffraction, scattering, and atmospheric absorption. The multiple signals created by these factors will reach the receiving antenna at different times, from different paths, and with different intensities. The result will be a reduced link margin and performance, and in the worst case, communications will be impossible.

Sloped polarization antennas can mitigate some of these problems using various techniques, with polarization diversity being the most common. It is used in all types of wireless applications, including cellular and fixed wireless access (FWA) systems used in rural areas to provide residential broadband services. Polarization diversity is basically the use of antenna systems that radiate signals in more than one polarization, such as horizontal and vertical.

The rugged, lightweight and UV resistant construction is weather resistant (IP67 rated), making the antanna usable for both indoor and outdoor appliances.

The antenna is designed for pole / pole or wall handle installation. A mounting kit is included (angle bracket and U-clamp for 30-50mm diameter shanks).


Model: Interline PANEL 8 HELIO SL (IP-G08-F8688-SL)
Antenna Type: Directional Antenna
Gain: 8dBi
Impedance: 50 ohms
Frequency: 860 - 880 MHz
VSWR: max. 1.5
Polarization: Vertical / Horizontal (Linear)
Beam width: 70 ° Horizontal
60 ° vertical
Connector: N female
Device: indoor and outdoor (IP67)
DC-Ground: Yes
max. Wind load: 160 km / h
Dimensions: 22.3 cm x 22.3 cm x 2.8 cm
Weight: 650g
White color
Operating temperature: -40 ° to + 80 ° C


Scope of delivery
1 x PANEL 8 HELIUM SL / 868MHz Interline Antenna
1 U-clamp mounting kit for 30-50mm shanks

 
Designed for systems: HELIUM the People's network, IoT M2M (Machine to Machine) Lora, Sigfox, XBee, RFID. Z-WAVE and etc


 
 The No Line of Sight (NLOS) scenario is much more common and presents challenges for all types of wireless systems, especially those where one end of the link is mobile. When there is no clear line of sight, degradation will result from reflections, refraction, diffraction, scattering, and atmospheric absorption. The multiple signals created by these factors will reach the receiving antenna at different times, from different paths, and with different intensities. The result will be a reduced link margin and performance, and in the worst case, communications will be impossible.
 

Antennas can mitigate some of these problems using various techniques, with polarization diversity being the most common. It is used in all types of wireless applications, including cellular and fixed wireless access (FWA) systems used in rural areas to provide residential broadband services. Polarization diversity is basically the use of antenna systems that radiate signals in more than one polarization, such as horizontal and vertical.

Figure 4. On the left is the horizontal / vertical polarization with respect to the horizon, and on the right the representation is polarized ± 45 degrees. Electric and magnetic fields are shown in blue and brown.

Dual horizontal and vertical polarization has been used for many years in wireless systems, but has mostly been superseded by skewed polarization (see Figure 4). On the Helium Panel 8, after selecting horizontal or vertical polarization (depends on how the antenna bracket is positioned), the antenna radiator radiates at an angle (+45 degrees and -45 degrees). We recommend setting the antenna vertically polarized, which is the most common use case.

Benefits of the inclined configuration

Several studies have determined that this ± 45 degree inclined configuration can provide benefits that the H and V configurations do not. Double tilt polarization is halfway between horizontal and vertical and the signals from the two antennas are combined into one linearly polarized transmitted wave, therefore reception can be improved over pure H or V s. Tilt bias has also been shown to provide signal enhancement through foliage. as in NLOS conditions.

Additionally, skew polarization can minimize some of the effects of signal variability, reduce interference between antennas, and increase signal-to-noise ratio (SNR). These benefits apply to any operating scenario and especially to urban environments and others where signals are dispersed, reducing their strength in a given place.

In antenna design, horizontal and vertical polarizations often have uneven patterns and gains due to the physical asymmetries of the antenna construction. This can be easily observed in the patterns of each polarization, where the beam width of the vertical polarization is narrower than the width of the horizontal beam. As a result, the vertical signal gain is weaker near the edges of the sector, causing an imbalance in the chain. In a ± 45 degree inclined configuration, there are no physical asymmetries in the antenna and each polarization has nearly identical patterns that equalize the signal strength of both polarizations.
resist fading

Oblique polarization appears to be able to withstand the effects of fading caused by reflections better than horizontal / vertical polarization, and some sources cite its ability to reduce interference where there are many simultaneous emitters. Finally, received signals generally appear at the receiving end with more vertical than horizontal polarization, creating an uneven relationship, as vertical polarization often delivers a stronger signal than its horizontal counterpart at the receiving location. Slanted polarization can minimize this problem by matching the signal levels of both orientations.

Although skew polarization should theoretically cause a 3 dB (half power) reduction in link budget caused by polarization mismatch, multipath propagation has the effect of restoring it because polarization is no longer purely horizontal / vertical and has a tilt of ± 45 degrees. The result is usually only a 1 dB reduction in link budget.

 

PANEL 868 MHz is a carefully designed and built directional antenna that operates in the unlicensed band in Europe - 863-870MHz.
Typical applications are digital monitoring and transmission of small amounts of data (up to 50 kbps)

    Tunnels, underground passages
    Energy (wind, solar panels),
    Intelligence Home
    Internet of Things
    Irrigation,
    telemetry,
    RF sensor networks
    tracking people and objects
    geolocation,
    worker safety.
    Covering a strictly defined area.

Key benefits

    Solid casing
    Powder painted back plate
    Radiator Protection (with a special varnish)

Characteristics

    Low level of side lobes.
    Adjustable mount
    Sector coverage
    Sector optimization

590775804094

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    LoRa antenna PANEL 8 HELIUM SL 868 MHz 8dBi Sigfox, XBee, RFID. Z-WAVE

    LoRa antenna PANEL 8 HELIUM SL 868 MHz 8dBi Sigfox, XBee, RFID. Z-WAVE

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