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. 29, 2011
Filed:
Apr. 23, 2007
Seong-hun Kim, Suwon-si, KR;
Seong-Hun Kim, Suwon-si, KR;
Samsung Electronics Co., Ltd, Suwon-si, KR;
Abstract
A Time Division Duplex (TDD) switch of a TDD wireless communication system is provided. By its unique arrangement, the TDD switch protects a receiver of the wireless system. The TDD switch includes an isolator connected to an output port of a transmitter, a first transmission line stub, connected between the isolator and a circulator, for transmitting a transmission signal received from the isolator when in a transmission mode, and for isolating a transmission path when in a reception mode, a first transmission line connected to the circulator, for isolating a reception path when in the transmission mode, and for supplying to a receiver a reception signal provided from an antenna connected to the circulator when in the reception mode, and a second transmission line stub connected between the first transmission line and an input port of the receiver in a stub form, for controlling the first transmission line to isolate the reception path when in the transmission mode, and for supplying the reception signal to the receiver when in the reception mode.