? all rights reserved taoglas limited, unit 7 peare campus, moyne business park, enniscorthy, co. wexford, ireland info@taoglas.com +353 53 9169500 www.taoglas.com specification part no. : gsa . 8821 product name : i - bar penta - band gsm antenna works with gsm / cdma / pcs / dcs /umts/ wcdma features : low profile for easy installation fully customized cable and connector ro hs compliant photo : revision status version date page revision description prepared approved 01 mar 4 th 200 7 all new product tw product centre zita lin 02 jun 6 th 200 8 all return loss added new format tw product centre zi ta lin top view side view
? all rights reserved taoglas limited, unit 7 peare campus, moyne business park, enniscorthy, co. wexford, ireland info@taoglas.com +353 53 9169500 www.taoglas.com 1.0 introduction the gsa . 8821 i - bar penta - band gsm antenna is flexible and robust . its slim - line design allows for covert and convenient installation in automotive vehicles , its o mni - directional gain across all bands ensures constant reception and t ransmission. it is a high gain, high efficiency solution which complies with at&t standards for high efficiency antennas. cables and connectors are fully customizable. it comes with strong 3m double - sided adhesive for a permanent and secure fix to your veh icle interior. 2.0 antenna specifications communication system penta - band cellular amps gsm dcs pcs umts frequency (mhz) 824 ~ 896 880~960 1710~1880 1850~1990 1710~2170 average efficiency 47% 67% 59% 54% 57% average gain (dbi) 2.1 3.9 4.1 3.2 3.2 im pedance 50 ohm radiation pattern omni - directional polarization linear (vertical) input power 10 watts input connection coaxial cable - rg174 standard, fully customizable vswr < 2.0 : 1 dimensions (mm) 106.7 x 14.7 x 5.3mm weight 40g casing uv re sistant tpe waterproofing sealing film waterproof ip - 65 temperature range - 40c to +85c thermal shock 100 cycles - 40c to +80c humidity non - condensing 65c 95% rh shock (drop test) 1m drop on concrete 6 axes cable pull 8 kgf
? all rights reserved taoglas limited, unit 7 peare campus, moyne business park, enniscorthy, co. wexford, ireland info@taoglas.com +353 53 9169500 www.taoglas.com 3.0 antenn a electrical characteristics 3.1 test setup gsa . 8821 is tested in the ctia 3d chamber for the free space radiation in a certification laboratory in taiwan. antenna setup in ctia 3d chamber
? all rights reserved taoglas limited, unit 7 peare campus, moyne business park, enniscorthy, co. wexford, ireland info@taoglas.com +353 53 9169500 www.taoglas.com 3.2 radiation pattern
? all rights reserved taoglas limited, unit 7 peare campus, moyne business park, enniscorthy, co. wexford, ireland info@taoglas.com +353 53 9169500 www.taoglas.com 3.3 gain & efficiency plot vs frequency gain efficiency
? all rights reserved taoglas limited, unit 7 peare campus, moyne business park, enniscorthy, co. wexford, ireland info@taoglas.com +353 53 9169500 www.taoglas.com return loss gsa. 8821 is placed on a piece of styrofoam on an empty carton for measuring free space return loss. since gsa. 8821 is designed to mount in a car, it also adheres directly on the test instrument metal box to simula te the application environment. agilent 8753se network analyzer is used for the s11 measurement. free space return loss measurement setup gsa. 8821 adhered to metal
? all rights reserved taoglas limited, unit 7 peare campus, moyne business park, enniscorthy, co. wexford, ireland info@taoglas.com +353 53 9169500 www.taoglas.com gsa. 8821 return loss in free space and adhered to metal. the oscillation introdu ced by the 3m cable is smoothed with a factor of 1%.
? all rights reserved taoglas limited, unit 7 peare campus, moyne business park, enniscorthy, co. wexford, ireland info@taoglas.com +353 53 9169500 www.taoglas.com 4.0 mechanical drawing (unit:mm) antenna cover - top 3m tape ? l:106.7, w:14.7, t :1 ? l:106.7, w:14.7
|
