Telecommunications – Transmitter and receiver at same station – With transmitter-receiver switching or interaction prevention
Reexamination Certificate
2006-03-07
2006-03-07
Vuong, Quochien B. (Department: 2685)
Telecommunications
Transmitter and receiver at same station
With transmitter-receiver switching or interaction prevention
C455S082000, C333S101000
Reexamination Certificate
active
07010274
ABSTRACT:
Disclosed herein is an antenna switching module having an amplification function, in which the power amplification of a transmission signal is performed together with the switching of transmission/reception signals to an antenna, using a basic antenna switching construction, thus reducing costs of mobile terminals and miniaturizing the mobile terminals.The antenna switching module has an amplifier, a low pass filter, a transmission line, and a switching diode. The amplifier is implemented using at least one active element and a bias circuit to intercept or amplify a transmission signal applied through a transmission terminal, wherein the bias circuit drives the active element to be turned on/off in response to a control signal and determines an amplification factor. The low pass filter is disposed between the amplifier and the antenna terminal to eliminate harmonic frequency components included an output signal of the amplifier. The transmission line has a length of ¼ of a wavelength (λ) of a reception signal to connect the antenna terminal and the reception terminal to each other. The switching diode is disposed between a first end of the transmission line, connected to the reception terminal, and the ground, and is switched on/ff in response to the control signal.
REFERENCES:
patent: 4055807 (1977-10-01), Priniski et al.
patent: 5054114 (1991-10-01), Erickson
patent: 5521561 (1996-05-01), Yrjola et al.
patent: 5778306 (1998-07-01), Kommrusch
patent: 5903820 (1999-05-01), Hagstrom
patent: 6060960 (2000-05-01), Tanaka et al.
patent: 6201455 (2001-03-01), Kusunoki
Patent Abstracts of Japan—Publication No. 2002-290257, Published Oct. 4, 2002.
Patent Abstracts of Japan—Publication No. 10-126307, Published May 15, 1998.
Patent Abstracts of Japan—Publication No. 06-169266, Published Jun. 14, 1994.
Patent Abstracts of Japan—Publication No. 09-055681, Published Feb. 25, 1997.
Patent Abstracts of Japan—Publication No. 10-093470, Published Apr. 10, 1998.
Patent Abstracts of Japan—Publication No. 2002-050980, Published Feb. 15, 2002.
Patent Abstracts of Japan—Publication No. 2002-261650, Published Sep. 13, 2002.
Lowe Hauptman & Berner LLP
Samsung Electro-Mechanics Co. Ltd.
Vuong Quochien B.
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