Geohelix GPS 天线在手机中的应用

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1.0 Introduction
1.1 Scope
The purpose of this application note is to demonstrate that excellent GPS performance is provided when integrating a Sarantel GeoHelix GPS antenna into a mobile phone.
Comparison measurements were made between the GeoHelix SMP passive surface mount antenna embedded into a commercially available UMTS mobile phone and the internal GPS antenna, a PIFA, supplied with the phone. Testing in intended-use positions as well as free space yields a better proxy for how the antenna will perform in real world situations, therefore measurements were carried out using a dielectrically loaded phantom hand.

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