Selection and Installation Guide for External Antenna for 4G LTE Cam S330

Modified on Wed, 10 Dec at 11:31 AM

1. External Antenna Types

Logarithmic Periodic Antenna (Preferred)：
Characteristics of Logarithmic Periodic Antennas: A logarithmic periodic antenna is a type of non-frequency-variable antenna. Non-frequency-variable means that the antenna's impedance, radiation pattern, gain, VSWR, and other electrical characteristics vary periodically in a logarithmic manner with frequency, and remain essentially unchanged over a wide frequency band. The number of elements in the radiation region is generally not less than three. The more elements in the radiation region, the stronger the antenna's directionality and the higher its gain.

Installation Requirements: The front end of the antenna needs to be directly facing the cellular towers.

Radiation Pattern of External Antenna：

2. Antenna Specification Requirements

Electrical Performance Parameters
Frequency	600-960/1710-2690MHz
Bandwidth	360/980MHz
Front-to-Back Ratio	＞20dB
Gain	>10dBi
Efficiency	>50%
VSWR (Voltage Standing Wave Ratio)	≤2
Radiation Characteristics	Direction
Horizontal Beamwidth	70°
Vertical Beamwidth	60°
Polarization Mode	Vertical
Lightning Protection	DC Grounded
Maximum Input Power	50W
Impedance	50Ώ
Antenna Feeder Adapter	N-Female
Shell Material	ABS, Fiberglass (other materials for sun protection and anti-aging can also be recommended)

3.External Antenna Connection and Components

The first installation method is recommended

Directional Antenna + RF Lightning Arrester Connector + RF Cable + RF L-Type Connector + Antenna Mast

This proposal protect against lightning strikes

Recommended

Performance of Each Component

Logarithmic Periodic Directional Antenna: Operating frequency 600MHz-2600MHz, should meet at least 700MHz-2600MHz, gain >10dBi