PRODUCT Data Sheet: GPS
Part No. M830110
Savvi
TM
Embedded
Ceramic GPS Antenna
1.575 GHz
KEY BENEFITS
DESIGN ADVANTAGES
Best in Class Performance—Smallest Occupied Volume
•
Powerful combination of 78% peak efficiency and
simple implementation guidelines.
•
Minimal ground clearance and component “keep
out” area. Very low component height.
•
High selectivity eliminates the need for additional
filters and frees up board space.
High Tolerance to Frequency Shifts
•
IMD’s high RF isolation resists antenna de-tuning that
can otherwise impair reception.
•
Single part works for various PCB sizes and layouts.
Quicker Time-to-Market
•
Fewer design changes.
•
Simpler implementation—no
matching networks.
RoHS Compliant
•
Antennas comply with appropriate RoHS Directives.
Ethertronics’ Savvi series of Isolated Magnetic
Dipole™ (IMD) antennas deliver on the key needs of
device designers for higher functionality and
performance in smaller/thinner designs. These
innovative antennas provide compelling advantages
for GPS enabled cell phones, navigation equipment,
and other mobile devices.
TECHNOLOGY ADVANTAGES
Real-World Performance and Implementation
Ceramic antennas may look alike on the outside, but
the important difference is inside. Other antennas
may contain simple PiFA or monopole designs that
interact with their surroundings, complicating
component layout or changing performance with use
position. Ethertronics’ antennas utilize patented IMD
technology to deliver a unique size and performance
combination.
Stays in Tune
High RF isolation means
IMD antennas resist
detuning regardless of
usage position. And one
standardized part can
typically be placed in a
variety of locations.
Smallest Effective Size
IMD antennas require a
smaller keep-out area for surrounding components,
leading to a smaller effective size.
High Performance
IMD’s high efficiency and simple design rules lower
development risk and speed time-to-market without
sacrificing performance. Plus, high RF selectivity
eliminates the cost and space for band-pass circuitry.
More information is available on our Website at
www.ethertronics.com/resources/.
END USER ADVANTAGES
Superior Range
•
Greater antenna efficiency means longer range and
a better end user experience.
Exceptional Coverage
•
Better coverage results in improved performance
while inside buildings, cars or other areas where
signal reflection occurs.
Faster Acquisition Times
•
Users experience faster signal acquisition for GPS
readings.
SERVICE AND SUPPORT
Extensive RF Experience
•
Our Savvi ceramic antennas are supported by exten-
sive application notes, and when needed, by the
expertise of RF engineers who have integrated
hundreds of antenna designs into wireless devices.
Global Operations & Design Support
•
Ethertronics’ global operations encompass an
integrated network of design centers that provide
local customer support.
ETHERTRONICS
9605 Scranton Road, Suite 300 | San Diego, CA 92121 - USA | www.ethertronics.com
tel +(1) 858.550.3820 | fax +(1) 858.550.3821 | contact: info@ethertronics.com
PRODUCT: GPS Antenna
Ethertronics produces a wide variety of standard and custom antennas to meet user needs.
Below are the typical specs for a GPS application.
Ethertronics’ Savvi
TM
GPS Embedded Antenna Specifications
Electrical Specifications
Typical Characteristics
(inside an enclosure)
GPS Antenna
BT/GPS Antenna
Average Gain
Peak Gain
Average Efficiency
Average Efficiency
VSWR Match
VSWR Match
Feed Point Impedance
Front to Back Ratio
Feed Point Impedance
Power Handling
Power Handling
Polarization
1.575 GHz
1.78 dBi
-2.5
75%
1.7:1
2.0:1 max
50 ohms unbalanced
-6 dB
50 ohms unbalanced
.5 Watt cw
.5 Linearcw
Watt
Mechanical Specifications
Size
Mounting
8x3x1.3mm
Surface mount
Tape & Reel
Packaging M830110: Minimum Order Quantity of 99,000 pcs. Order multiples of 4,500 pcs.
M830110-1K: Minimum Order Quantity of 1,000 pcs. Order multiples of 1,000 pcs.
Typical Efficiency,
Return Loss
The efficiency and return loss, indicated below, will shift about 12 MHz toward the GPS
carrier frequency when antennas are placed in wireless devices.
Antenna Radiation
Patterns
Typical Performance
Ethertronics’ Test Board
PCB: 40x80mm
1.575 GHz Band
Phi = 0
o
Plane
Phi = 90
o
Plane
Theta = 90
o
Plane
z (θ=0
o
)
y (Φ=90
o
)
x (Φ=0
o
)
© 2011 Ethertronics. All rights reserved. Ethertronics, the Ethertronics logo, shaping antenna technology, Savvi, Isolated Magnetic Dipole and the
iMD logo are trademarks of Ethertronics. All other trademarks are the property of their respective owners.
Specifications subject to change and are dependent upon actual implementation.
GPS 08/05/11
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