Alpha Micro Components has the Taoglas FXP.14 flexible circuit GSM/cellular antenna that is 'ground-plane' independent measuring 70x20mm in size.

It is suitable for machine-to-machine (M2M) devices used in tracking, navigation, automotive and telemedical applications that require an embedded antenna solution.

It is designed to be mounted directly onto the product casing saving design space and creating extra clearances for the antenna to radiate.  

The FXP-14 hepta-band antenna is specified to deliver an efficiency of over 50% on all cellular bands 850, 900, 1700, 1800, 1900, 2100 MHz for GSM, CDMA, DCS, PCS, WCDMA, UMTS, HSPA, GPRS and EDGE.

It also features 1575MHz for cellular or CDMA modules with AGPS where enhanced 911 is a requirement.

The FXP-14 antenna uses the same design technique found in most high-end mobile phones and can be placed directly on the underside of the device. Its flexible substrate is conformable to the curves of the housing and has an extremely low profile of only 0.1mm in depth.

For more information, please see http://www.alphamicro.net