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:
Nov. 26, 2002
Filed:
Mar. 16, 1998
Jeffrey C. Durec, Chandler, AZ (US);
David Kevin Lovelace, Chandler, AZ (US);
Mark D. Randol, Mesa, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A radio frequency (RF) switch ( ) for use in a wireless communication system operated in a time delay division mode of operation. The switch includes a pair of PIN diodes ( and ) serially coupled between the transmitter and receiver paths of the communication system which share a common node ( ) to which a bias voltage is provided. The bias voltage is switched between first and second voltage levels to alternately cause one and the other of the pin diodes to be forward biased while the other is reversed bias. In this manner the transmitter and receiver paths will be alternately shorted to alternating current ground while the other path is shorted to a common node to an antenna.