Side and back lobes are regions in a template where the “directions” the antenna may be of benefit, except for the maximum rate. System engineer Note these characteristics with downtilting antenna as part Lobe (petal, which appears above the horizon in the vertical model) can lead to interference. Mechanical downtilting antennas will directly affect the radiation side and back lobes. Mounting Panel antennas on buildings or using antenna with electronic tilt down/up are two ways to limit the rear of interference.
Systems engineer must choose an optimal orientation and receive antennas paying attention to the side and rear blades of the preceding figure shows the null pattern between the primary and secondary share share. NULL values for vertical structures that appear in the template below the horizon could potentially cause a degradation of the signal in the area of the site where the trail drops is null. Some dish antennas supplier are intended to minimize the number of null in the first couple of NULL values. This is sometimes called “null fill.
What is Side and Back Lobes in LTE Antenna
When an antenna sends out a signal, most of it goes in the main direction. But some signal leaks to the sides and back. These unwanted parts are called side lobes and back lobes.
If I’m aiming my LTE antenna at a tower, I want all power going forward. But due to design, a bit of signal also goes sideways and backward. That side signal is a side lobe, and the one behind is a back lobe.
Side and back lobes don’t help coverage. Instead, they can cause interference to other cells or pick up unwanted noise. For example, if your antenna picks up noise from the back, it could affect your LTE signal quality.
So when you and I install antennas, we look for models with low side and back lobe levels. That way, more signal goes where it’s needed, and less is wasted or causing trouble.