The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 02, 1995
Filed:
Mar. 07, 1994
James T Wiggenhorn, Coral Springs, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A retractable antenna assembly with a bottom connector (200) allows communication devices that require the use of more than one type of antenna element (114), to easily store the normally used antenna element (114) inside of a transmission line housing (144) which is part of the antenna assembly (200). Once inside of the housing (144), the antenna element (114) is hidden within the transmission line housing that has a 50 ohm impedance at the operating frequency of the communication device (302), thereby operatively decoupling the antenna element (114) from the radio frequency path. Once inside of the housing (144), the antenna element (114) is connected to part of a coaxial connector (112) with the bottom portion (120) of the antenna element (114) connected to the center conductor of the coaxial connector (112), thereby allowing for an external antenna element (308) to be attached to the communication device (302).