1002857

**DATASHEET** Part No. 1002857 Product: EtherHelix GPS Antenna 

EtherHelix™ series of GPS Quad Helix Isolated Magnetic Dipole™ (IMD) antennas deliver on the key needs of device designers for higher functionality and performance in the worlds smallest Stand alone Circular polarized external  and internal designs. These innovative antennas provide compelling advantages for GPS enabled cell phones, navigation equipment, and other mobile devices. 

## **Real-World Performance and Implementation** 

Antennas may look alike on the outside, but the important difference is inside. Other antennas may contain simple PIFA or monopole patch designs that inter-act with their surroundings, complicating component layout or changing performance with use position. KYOCERA AVX’s antennas utilize patented IMD technology to deliver a unique size and performance combination. 

## **Electrical Specifications** 

Measured in Free space 

## **KEY BENEFITS** 

## **Smallest Effective Size** 

KYOCERA AVX’s antennas require a smaller keep-out area for surrounding components, leading to a smaller effective size. 

## **High Performance** 

KYOCERA AVX’s high efficiency and simple design rules lower development risk and speed timeto-market without sacrificing performance. Plus, high RF selectivity eliminates the cost and space for band-pass circuitry. 

## **Reliability** 

Products are the latest RoHS version compliant. 

## **APPLICATIONS** 

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|---|---|---|---|
|•|GPS enabled|•|Mission Critical|
|phones|Applications|
|•|GPS navigation|•|Commercial/|
|systems|Communication|
|•|Mobile devices|•|Radar|
|•|Tracking|•|Industrial|
|•|Wireless Monitoring|•|Automotive|
|•|IoT|•|First Responders|
|•|Medical/Healthcare|
|applications|

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|---|---|
|Frequency|GPS  - 1.575 GHz|
|Polarization|Right Hand CP (RHCP)|
|Peak Gain (dBi)|-3.0  [-5 dB at Zenith]|
|Beam-width|120 degrees (Axial Ratio < 3dB)|
|Axial Ratio (dB)|< 1.5  at zenith|
|Average Efficiency (%)|27|
|VSWR Match|2.0:1 max|
|Feed Point Impedance|50 ohms unbalanced|
|Power Handling|0.5 Watt CW|

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## **Mechanical Specifications & Ordering Part Number** 

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|---|---|
|Ordering Part Number|1002857|
|34.93 height|
|Size (mm)|
|15.0 diameter|
|Connector|SMA Male|
|Weight (grams)|11.8|
|Mechanical Rating|IP 68 UV Protected|
|Connector|SMA Male|
|Operative Temperature (°C)|-40 to +85|
|Humidity(°C)|95% RH @ 54|
|Packaging|Trays: 60 per tray - 300 per master carton|

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## DATASHEET  | **Part No. 1002857** , ; —— lc 

**KYOCERA AVX’s EtherHelix GPS Antenna Specifications. KYOCERA AVX produces a wide variety of standard and custom antennas to meet user needs.** 

## **Efficiency, Axial Ratio, RHCP / LHCP Plots** 

Typical performance, measured in free space 

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Efficiency<br>90% | : ' ' t : '<br>80% } 4 4 } } 4<br>|<br>10% | t } } | } |<br>0% | | | | | |<br>1525 1535 1545 1555 1565 1575<br>Frequency (MHz)<br>Efficiency (%)<br>**----- End of picture text -----**<br>


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Axial Ratio<br>**----- End of picture text -----**<br>


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10<br>7<br>4<br>2<br>‘i1<br>-180 -135 -90 -45 o<br>Degree (°)<br>Axial Ratio (dB)<br>**----- End of picture text -----**<br>


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RHCP / LHCP<br>**----- End of picture text -----**<br>


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-20<br>-24<br>-28<br>-32<br>Pe a:<br>-40<br>-180 -135 -90 -45 0<br>Degree (°)<br>Gain (dB)<br>**----- End of picture text -----**<br>


## **Antenna Radiation Patterns** 

Typical performance, measured in free space @ 1575 GHz 

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Phi = 0 [o] Plane Phi = 90 [o] Plane Theta = 90 [o] Plane<br>**----- End of picture text -----**<br>


**KYOCERA AVX’s EtherHelix GPS Antenna Specifications. KYOCERA AVX produces a wide variety of standard and custom antennas to meet user needs.** 

## **Mechanical Dimensions** 

Typical antenna dimensions (mm) 

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Part Number A (mm) B (mm) C (mm)<br>1002857 34.93 ± 0.5 15.0 ± 0.5 1.5 ± 0.3<br>C<br>=“ /lprH<br>WS<br>See-through View<br>A<br>(©)<br>ZY<br>Connector View Front View<br>B<br>G | -<br>Diameter View Bottom View<br>**----- End of picture text -----**<br>