User's Manual

i-Q350LX GPS -SAT
USER MANUAL
VISIBILITY DELIVERED. PAGE 15 OF 31
2.5. System Components—Antennas
IDENTEC SOLUTIONS’ antennas are distinguished by their compact design. A variety of antennas can be used,
depending on application. The antennas are differentiated by characteristics such as polarization, apex angle,
and gain. Optimal fit to the reading zone is achieved by the right choice of antenna (characteristics) and
receive sensitivity. As the antennas are passive system elements, no tuning is required, which facilitates
installation and maintenance.
2.5.1. Elliptical Polarized Antennas
Because of the wide apex angle (120º), a large read zone is achieved,
which is desirable when a large quantity of sensors need to be read at one
time, or when sensors moving at great speeds need to be interrogated.
Since the polarization is elliptical, orientation of the sensor relative to the
antenna is not important; if the sensor is in front of the antenna the sensor
may be polarized horizontally or vertically along the line of sight of the
antenna. Due to its small size and weight, this antenna is very easy to
integrate.
Orientation Diagrams: Elliptical polarized antenna
Elevation Azimuth
For this antenna, the maximum transmit power setting is:
• A-9185: -8 dBm