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SPK-SARANTEL-R&D Technology
  SPK Electronics Co., Ltd. --

The only Distributor of Sarantel GPS, Radio Geohelix Antenna in
Taiwan, China and Hong Kong. (Our R&D Teams believe in strong customer support to address client's various needs.)

Technology:

**What's special about Sarantel's PowerHelix? Filtering Antenna Technology?
Sarantel antennas don't detune when near people or objects.
Sarantel antennas combine form (loop topology), materials (high dielectric ceramic), and structure (balance) to very tightly constrain the antenna's near field. As a result, the antenna is highly tolerant to the close proximity of people, other components and other antennas. System designers like these features as the antenna is not easily detuned, yielding a predictable, repeatable and reliable response in all application circumstances.
**Sarantel antennas are easy to embed.
Because they're balanced and don't interact with other components, Sarantel antennas are the easiest antennas to embed in a device. Conventional antennas use the entire device to create their actual electrical resonating size; as a result, small changes to the device mean large changes to the antenna. Sarantel antennas are isolated from the device, so changes to the device don't impact the antenna at all. RF engineers can treat the antenna as a standard component rather than an ongoing design headache!
**Sarantel GeoHelixR GPS antennas are omni-directional.
Sarantel's GeoHelixR GPS antennas form a near-ideal Euclidean cardioid pattern, providing the broadest possible beamwidth. This is especially important for satellite reception near the horizon. The GeoHelix maintains this pattern even when near other objects due to its unique near field properties. Regardless of the orientation of the device, signal integrity is maintained.
**Sarantel antennas are smallest GPS antenna with best performance.
Sarantel antennas use high dielectric materials to shrink the antenna to the smallest possible size, while maintaining high application efficiency. Balanced antennas do not require a ground plane to work, so they don't resonate against the entire device. Theoretically, the entire device can be made as small as the antenna without sacrificing efficiency.
**Sarantel antennas act as their own filters.
Sarantel antennas are designed with a very sharp filtering response. The GeoHelixR GPS antenna attenuates signals in common GSM and ISM bands by 25-30dB, and has a 3dB fractional bandwidth of only 1.25%. Many applications do not require additional filtering between the antenna and receiver.
**Sarantel antennas reject common mode noise.
Today's converged wireless devices are a maelstrom of RF noise. This makes it particularly difficult to implement a receiver with the sensitivity requirements of GPS. Because they're balanced, Sarantel antennas provide no conductive path between the ground plane of the receiver and the antenna, and thus prevent common mode noise from entering the receiver through the antenna path.

**SPK Electronics Co., Ltd. is Sarantel GPS, Radio Geohelix Antenna Supplier for Taiwan China Hong




 
Sarantel GPS RADIO antenna - Application
  SPK Electronics Co., Ltd. ----
The only Distributor of Sarantel GPS, Radio Geohelix Antenna in

Taiwan, China and Hong Kong.
(Our R&D Teams are very stronge and supportive.)

Technology:

**What's special about Sarantel's PowerHelix? Filtering Antenna Technology?
Sarantel antennas don't detune when near people or objects.

Sarantel antennas combine form (loop topology), materials (high dielectric
ceramic), and structure (balance) to very tightly constrain the antenna's near
field. As a result, the antenna is highly tolerant to the close proximity of
people, other components and other antennas. System designers like these features
as the antenna is not easily detuned, yielding a predictable, repeatable and
reliable response in all application circumstances.

**Sarantel antennas are easy to embed.

Because they're balanced and don't interact with other components, Sarantel
antennas are the easiest antennas to embed in a device. Conventional antennas
use the entire device to create their actual electrical resonating size; as
a result, small changes to the device mean large changes to the antenna. Sarantel
antennas are isolated from the device, so changes to the device don't impact
the antenna at all. RF engineers can treat the antenna as a standard component
rather than an ongoing design headache.

**Sarantel GeoHelixR GPS antennas are omni-directional.
Sarantel's GeoHelixR GPS antennas form a near-ideal Euclidean cardioid pattern,
providing the broadest possible beamwidth. This is especially important for
satellite reception near the horizon. The GeoHelix maintains this pattern even
when near other objects due to its unique near field properties. Regardless
of the orientation of the device, signal integrity is maintained.

**Sarantel antennas are small.
Sarantel antennas use high dielectric materials to shrink the antenna to the
smallest possible size, while maintaining high application efficiency. Balanced
antennas do not require a ground plane to work, so they don't resonate against
the entire device. Theoretically, the entire device can be made as small as
the antenna without sacrificing efficiency.

**Sarantel antennas act as their own filters.
Sarantel antennas are designed with a very sharp filtering response. The GeoHelixR
GPS antenna attenuates signals in common GSM and ISM bands by 25-30dB, and has
a 3dB fractional bandwidth of only 1.25%. Many applications do not require additional
filtering between the antenna and receiver.

*Sarantel antennas reject common mode noise.
Today's converged wireless devices are a maelstrom of RF noise. This makes
it particularly difficult to implement a receiver with the sensitivity requirements
of GPS. Because they're balanced, Sarantel antennas provide no conductive path
between the ground plane of the receiver and the antenna, and thus prevent common
mode noise from entering the receiver through the antenna path

**SPK Electronics Co., Ltd.
is Sarantel GPS, Radio Geohelix Antenna Supplier for Taiwan China Hong Kong.






 
GPS Navigator Handheld PDA S911 GOLF - Geohelix antenna
  SPK Electronics Co., Ltd.
--The only Distributor of Sarantel ( Manufacturer) GPS, Radio Geohelix Antenna in Taiwan, China and Hong Kong.

(1) PDAs / PNDs

GPS is the latest enhancement to the current generation of PDAs and smart phones.
The Sarantel GeoHelix? GPS antenna has been used in a range of PDAs and PNDs
(Portable Navigation Devices) like Royaltek's Empus and TomTom's Mobile 5
GPS Receiver.
Handheld GPS products need to offer reliable reception while being used near
humans. While conventional antennas de-tune and become inefficient when they
come in contact with RF-absorbing materials like the user's hand or head, GeoHelix?
GPS antennas stay on frequency regardless of how they are used.
GPS-enabled PDAs and PNDs with a Sarantel antenna also work in random orientations
because of the antenna's omni-directional capability. This removes the burden
on users to orient the device in order to achieve reliable performance.
Sarantel antennas boost the performance of PDAs and PNDs and provide users
with reliable GPS reception in the city, on the road, in the forest - or wherever
they go!

(2) Telematics :

The science of marrying mobile phone communications and information from global
positioning satellites to monitor a truck or van on the move has become known
as vehicle telematics.

David Blackwell

Financial Times, 12 May 2003

Automobile navigation has become a standard offering among many vehicle brands.
Businesses achieve great efficiencies in knowing where their mobile assets are
and having the ability to deploy them rapidly. GPS has become an indispensable
tool of a mobile workforce.
Sarantel's GPS antennas permit greater flexibility in integrating GPS functionality
into the dashboard of a vehicle and help to significantly reduce the cost of
integration. Patch antennas must be housed and mounted on the outside of the
car.
Sarantel's GPS antenna can be put inside the car, in the boot, under the seat,
or beneath the dashboard, saving cost in materials and installation. The GeoHelix?
antenna's omni-directional pattern ensures good performance in obscured environments.

(3) Sports and Games :

The latest performance enhancer in sport and games is GPS. Sports men and women
are using GPS enabled devices to track their pace, speed and distance across
land, whilst urban gamers are using GPS handheld consoles to play games across
our towns and cities.
GeoHelix? GPS antennas use Sarantel's proven PowerHelix? technology and offer
significant benefits over patch antennas in handheld consoles and devices with GPS.
Achieving GPS accuracy has been a stumbling block to the uptake of urban gaming
and its serious use as a performance enhancer in sports. High buildings can
block GPS signals from satellites, creating positioning shadows, which can affect
location accuracy.
Sarantel GPS antennas offer unparalleled performance in unstable environments
such as urban canyons and heavily wooded areas because the antenna's circular
polarisation pattern maximises GPS signals.
Handheld consoles and devices with a Sarantel antenna do not require a clear
view of the sky for robust GPS reception because of the antenna's omni-directional
capability. This eliminates the need for gamers and sports lovers to orient
their GPS console or device in order to achieve reliable performance, enabling
them to focus on their game.
Sarantel's GPS antennas can be embedded into handheld devices creating a more
robust product for sports lovers and the growing community of gamers who prefer
playing on the streets rather than on their sofas.

(4) Emergency Devices and Panic Buttons :

A plethora of GPS enabled emergency devices are entering the market to support
the US's E-911 and Europe's E-112 mandates which require the position of a mobile
phone to be made available to all emergency call dispatchers.
GPS enabled emergency devices such as the Laipac use Sarantel's GeoHelix? GPS
antenna to provide stable reception in the harshest conditions including inside
buildings and heavily wooded areas.
Sarantel antennas are omni-directional, which means that emergency tracking
devices with the GPS antenna do not need a clear view of the sky for quality
GPS reception. This eliminates the need to orient the device in order to achieve
reliable performance, so even if a user were in a difficult position, i.e. lying
on their back and unable to reach their phone, emergency services would still
be able to locate their position.
While conventional antennas de-tune and lose efficiency when they come in contact
with RF-absorbing materials like the user's hand or head, GeoHelix? GPS antennas
stay on frequency regardless of how they are used.
--------------------------------------------------------------------------------

Case studies

S-911
The Sarantel antenna provides a level of performance that ensures the S-911
will be there when it's needed.

TomTom Mobile 5
The Sarantel GPS antenna ensures the accuracy of the TomTom R GPS
receiver, even when it is in a bag or a pocket.

SkyHawke SkyCaddie SG2
The SkyCaddie with Sarantel's antenna gives precise yardage measurements anywhere
on the golf course.

Flextrack Lommy
The Lommy? offers an unseen level of GPS tracking inside most buildings and
at places where traditional GPS tracking devices fail to deliver stable performance.

(5) Location Based Services :
Location based services (LBS) are available to subscribers based on their current
geographic location, which is received via GPS.
Business LBS applications are set to grow by nearly six-fold over the next
six years as more put in place GPS and other location services for mobile resource
management (MRM) and field force management (FFM). LBS is also paving the way
for a host of consumer products, such as personal and pet trackers.
Sarantel customers have embedded the GeoHelix GPS antennas into a range of
devices for businesses and personal use.

SPK Electronics Co., Ltd. --
The only Distributor of Sarantel ( Manufacturer) GPS, Radio Geohelix Antenna in
Taiwan, China and Hong Kong.







Add : 10F, No. 510, Sec.5 Chung Hsiao E. Rd.,Taipei, Taiwan R .O. C.
Web site : https://www.spkecl.com  
Tel : 886-2-2346-2323  Fax : 886-2-2346-3939  
E-Mail : spk@spkecl.com ; spktw@ms34.hinet.net