05440317 is referenced by 30 patents and cites 9 patents.

An antenna assembly for use with a portable transceiver provides improved communication between the portable transceiver and a base station. A novel antenna assembly is created wherein the radiating portion is elevated above the handset by combining a half wavelength sleeve dipole antenna with a coaxial line section followed by a quarter wavelength choke. Such a configuration reduces the antenna-housing interaction. The quarter wavelength choke prevents the coaxial transmission line from radiating RF energy, and therefore limits the radiation to the sleeve dipole portion of the antenna assembly.

Title
Antenna assembly for a portable transceiver
Application Number
8/61937
Publication Number
5440317
Application Date
May 17, 1993
Publication Date
August 8, 1995
Inventor
John S Mayo
Chatham
NJ, US
Amer Jalloul
East Brunswick
NJ, US
Agent
Samuel R Williamson
Steven R Bartholomew
Assignee
AT&T
NJ, US
IPC
H01Q 1/24
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