Patent ID: 6191743
Filing Date: 2001-02-20
Classification: H01Q

Abstract:
In a wireless personal data assistant, an apparatus for accommodating a user-selectable placement of an antenna for use in wireless communications by said wireless personal data assistant, said apparatus comprising:a) a user-removable antenna having a first end for indirectly coupling with a transceiver of said wireless personal data assistant and a second end for extending at least partially outside said wireless personal data assistant for facilitating said user selectable placement of said user-removable antenna;b) a plurality of receiving channels integral with said wireless personal data assistant, said plurality of receiving channels each capable of receiving therein said user-removable antenna; andc) a plurality of electrically symmetrical transmission lines electrically coupled at a first end to said transceiver with a second end extending at least partially into a corresponding one of said plurality of receiving channels for electrical coupling with said user removable antenna, said plurality of electrically symmetrical transmission lines configured such that when said user-removable antenna is placed within one of said plurality of receiving channels and electrically coupled to one of said plurality of electrically symmetrical transmission lines, each other of said plurality of electrically symmetrical transmission lines exhibit infinite impedance to said transceiver.