SPK ELECTRONICS CO., LTD.
SPK Electronics Co., Ltd. has 30 years of excellent experience in manufacturing. SPK is also the sole distributor of Sarantel Inc (UK) world patented Geohelix GPS Antenna products in Taiwan/China/Hong Kong and sales channel of Epson Toyocom for frequency controlled products. Our wide array of frequency controlled products encompass crystal , Oscillator , TCXO, VCXO, VCO, OCXO, Saw filters, and resonators. SPK products enable in GPS, Bluetooth, DVB-T, TV Field, such as Navigator, PND, E911 phone, Pet Finder, Handheld device, Notebook, MP3, MP4, GPS/GSM/GPRS/CDMA cellular phone, Wireless, mobile communication. We are committed to performance enhancement, continuous quality improvement and customer satisfaction.

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Categories  > GPS-Glonass Product > Part 5: Sarantel GeoHelix GPS Antenna > Products


GeoHelix-P3 (Passive GPS Antenna)

( GeoHelix®–P3 Passive GPS Antenna for Mobile Phones and Tightly integrated GPS Devices )

GeoHelix

GeoHelix®–P3

INTERNAL PART NUMBER:1010062

 

Passive GPS Antenna for Mobile

Phones and Tightly integrated GPS Devices

Product Description

Built on patented PowerHelix® filtering

antenna technology, the GeoHelix-P3 is ideally

suited for mobile phones and tightly integrated GPS

devices with multiple radios that require high positional

accuracy. Unlike other conventional antennas, P3 achieves an uplift in gain once integrated into the customers product.

 

The GeoHelix-P3 antenna is ideal in applications where:

*the device is handheld, body-worn, or otherwise surrounded by

high-dielectric materials that would de-tune conventional antennas;

*the antenna is tightly integrated with other antennas, e.g., Bluetooth®/GPS

receivers or GPS/GSM mobile phones;

*there are tight constraints on the size of the device or the amount of space allocated to ground planes; P3 does not need

a ground plane.

*the orientation of the device is random; or

*the antenna will be embedded in the device.

 

The GeoHelix-P3 antenna is balanced. This isolates it from the device and enables the antenna to reject common mode noise resident on the device ground plane. The construction and materials of the antenna constrain its near-field to a very small volume, therefore materials near the antenna have negligible de-tuning effects. The GeoHelix-P3 is 50% smaller than P2, and ideal for embedded applications. The GPS performance of the P3 antenna is significantly enhanced when integrated appropriately into the customers product. The antenna does not require a sleeve to de-tune it to GPS frequency.

 

Specifications

 

Minimum

Typical

Maximum

Unit

Part Number

1010062

Each

Type

Quadrifilar Helix

Embedded Frequency

1573.42

1575.42

1577.42

MHZ

Polarization

Right-hand circular polarized

Integrated Gain

-5.0dBic

dBic @ zenith

Beamwidth

>120

Degrees

Bandwidth (3dB)

15

MHZ

Axial Ratio

<1.5

@Zenith

VSWR

<2.0:1

2.3:1

Impedance

50

Ω

Operating Temperature

-40

+20

+85

°C

Element Dimensions

7.5 (diameter) x 12 (length)

mm

Weight

3.0

grams



Passive Antenna-P2 Type

( Sarantel Geohelix GPS )

GeoHelix-P2 (Passive GPS Antenna)
This dielectrically loaded quadrifilar helix antenna with its high performance and balanced design is ideal for embedded applications.

Product Summary
GPS L1 antenna
30% smaller, 1 gram lighter
-2.8dBic peak gain without ground plane
Rejects conducted noise from application
Balanced design - low interaction with platform
Wide cardioid beamwidth (>120° typical)
Negligible detuning close to user's hand
RoHS Compliant

S type Active antenna

( Geohelix GPS Antenna )

GeoHelix-S (Active GPS Antenna)
This dielectrically loaded quadrifilar helix antenna offers high performance with tight integration and an integral high gain/low noise amplifier.

Product Summary
GPS L1 antenna
Very small size
Rejects conducted noise from application
Balanced design - low interaction with platform
Wide cardioid beamwidth (>120° typical)
Negligible detuning close to user's hand
Internal and external mounting
SMT compatible
Low voltage/current
High gain (24dBic typical)



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