
ACCESSORY NOTE
GRE A
MERICA
, Inc. 425 Harbor Blvd. Belmont, California 94002 phone(650) 591-1400 fax(650) 591-2001
2.4 GHz PATCH ANTENNA 30-0033
Patch antennas lend themselves well to many data collection applications. They are flat and unobtrusive in
most environments. Their patterns are much like a short Yagi. Directional antennas are used to provide a
focus of signal strength in one direction while decreasing reception and transmission in other directions (see
diagram). In control applications, they are used to aim as much energy in one direction as possible to provide
a reliable communications path.
Our patch antennas are in a durable ABS plastic housing. Patch antennas are most commonly wall- or ceiling-
mounted. The system is completely sealed to keep out the weather and to prevent unwanted detuning.
Antennas feature 10’ of teflon cable with a reverse SMA connector for attachment to GINA.
Polarity
Circular
Frequency
2.404 to 2.478 GHz
Gain
3 dBi
Diameter
3” x 3”
Front to Back
>18 dB
Bandwidth, 1.5.1
100 MHz
Beamwidth
-3 dB
E-plane
65
°
H-plane
75
°
Connector Type
Reverse SMA male
Weight
8 oz
Mount
Double sided tape