1. Introduction
MIMO communication systems are needed in high speed wireless applications. A MIMO
(Multiple-Input-Multiple-Output) system uses at least two antenna structures and is more
advantageous than single-input single-output (SISO) by increasing channel capacity and
reducing transmitting power. MIMO antennas should have compact structure, high radiation
efficiency, low envelope correlation, and high isolation between the signal ports.
In small structures (antennas spaced closely), the application of MIMO technology has been
restricted by high degree of coupling and spatial correlation between antenna elements due
to the limited available space. The isolation between antennas become critical as it can
deteriorate the system performance and decreases channel capacity. Taoglas have designed
the Hercules MA515 antenna to meet these demanding requirements
The Hercules MA515 MIMO 2.4GHz 3dBi antenna is low profile, heavy-duty, fully IP67 and
IP69K waterproof external M2M antenna for use, transportation and remote monitoring
applications. This unique omnidirectional 3dBi antenna provide high efficiency and high
isolation (>20dB), between antennas elements in a heavy-duty low profile compact structure,
delivering powerful MIMO antenna technology for Wi-Fi 802.11n.
The antenna screws down permanently onto a roof or metal panel and can be pole or wall-
mounted. The two antenna elements are vertically polarized, matching well with the
polarization of most wireless routers antennas. An envelope correlation co-efficiency of only
0.2 ensures good performance with the MIMO module.
For industries such as remote monitoring, smart meter systems, construction equipment,
public safety at only 29mm high, the Hercules MA515 MIMO antenna provides an
unobtrusive, robust, rugged antenna that is durable even in extreme environments.
SPE-13-8-033/D/EZ
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MA.515.C.A108151.G108151
2. Specification
Antenna
Hercules MA515 MIMO
ELECTRICAL
Antenna 1
Operation Frequency (GHz)
Polarization
Impedance (ohms)
Min Isolation (dB)
Max VSWR
Max Return Loss (dB)
Peak Gain (dBi)
Efficiency (%)
Average Gain (dB)
Radiation Properties
Max Input Power
2.4~2.5
Linear
50
-25
2.0:1
-10
3.0
56
-2.5
Omni
2W max
Antenna 2
2.4~2.5
Linear
50
-25
2.0:1
-10
3.0
56
-2.5
Omni
MECHANICAL
Dimensions (mm)
Cable
Casing
Base and Thread
Weather proof gasket
Connector
Tread Diameter (mm)
Sealant
Protection
Corrosion
Temperature Range
Thermal Shock
Humidity
Shock (Drop Test)
Height=29 Diameter=49
1M RG316- Fully Customizable
UV Resistant PC
Nickel plated Zinc Alloy/Steel
CR4305 foam with 3M9448WC double-side adhesive
RP-SMA Male Fully Customizable
18
Rubber Stopper
ENVIRONMENTAL
IP67 & IP69K
5% NACI for 48hrs- Nickel plated steel base and thread
-40ºC to +85ºC
100 cycles -40°C to +85°C
Non-condensing 65°C 95% RH
1m drop on concrete 6 axes
* The Hercules MA515 MIMO antenna performance was measured with RG316 coaxial cable at 1 meter cable length
on a 30x30 cm ground plane.
SPE-13-8-033/D/EZ
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MA.515.C.A108151.G108151
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