Amplifier supporting multi mode and amplifying method thereof
a multi-mode amplifier and amplifier technology, applied in the direction of low noise amplifiers, duplex signal operation, wireless communication, etc., can solve the problems of limiting the operation of high-output amplifiers in rx mode, rf communication switch s/w of high-capacity has a very high cost and capacity limitation, and the noise of tx leakage is larg
Inactive Publication Date: 2016-02-11
SAMSUNG ELECTRONICS CO LTD
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Benefits of technology
Problems solved by technology
Because the frequency band of a transmission Tx mode and the frequency band of a receiving Rx mode are the same in communication using a TDD mode, if an HPA always operates in a TDD communication system, great Tx leakage noise occurs.
However, since an RF communication switch S / W of high capacity has a very high cost and limitation in capacity, a simple RF S / W of high capacity is used.
A high output amplifier operates in a Tx mode using Gate bias on / off technology of an HPA but an operation of the high output amplifier is restricted in a Rx mode in a currently used TDD system.
It is difficult to use an HPA for an FDD system in the TDD system.
In this case, price competitiveness and a space side of a system are very poor.
To meet the requirements, because a new product should be again made in an existing mode, there is a need for much time and effort.
Method used
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[0021]The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of exemplary embodiments of the invention as defined by the claims and their equivalents. It includes various specific details to assist in that understanding but these are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.
[0022]The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used by the inventor to enable a clear and consistent understanding of the invention. Accordingly, it should be apparent to those skilled in the art that the following description of exemplary embod...
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An amplifier and an amplifying method are provided. The amplifier includes: an amplifying unit amplifying and transferring a transmission target signal to a TDD switch; the TDD switch transferring a signal received from the amplifying unit to a filter unit when the amplifier operates in a TDD mode, and transferring a signal received from the filter unit to a duplex mode selection switch; the duplex mode selection switch transferring a signal received from the filter unit to a receiving side; and a controller controlling the duplex mode selection switch to transfer the signal received from the filter unit to the receiving side without passing through the TDD switch when the received duplex mode selection signal is a FDD mode selection signal.
Description
PRIORITY[0001]This application is a continuation of, and claims priority under 35 U.S.C. §120 to application Ser. No. 13 / 811,115, which was filed with the U.S. Patent and Trademark Office on Jan. 18, 2013, and will issue on Aug. 11, 2015 as U.S. Pat. No. 9,107,240, which is a U.S. National Phase of PCT / KR2011 / 005721, which was filed Aug. 4, 2011, and claims priority to Application No. 10-2010-0075333, which was filed in the Korean Intellectual Property Office on Aug. 4, 2010, the entire disclosures of each of which are incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to an amplifier supporting a multi mode and an amplifying method thereof, and more particularly, to an amplifier supporting both of a Time Division Duplex (TDD) mode and a Frequency Division Duplex (FDD) mode, and an amplifying method thereof.[0004]2. Description of the Related Art[0005]A pre-drive amplifier, a drive amplifier, and a main ampl...
Claims
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IPC IPC(8): H04L5/14H03F1/02H03F1/30H03F3/19
CPCH04L5/14H03F1/0205H03F2200/468H03F3/19H03F2200/451H03F1/30H03F1/0261H03F3/189H03F3/24H03F2200/18H03F2200/294H03F2200/408H04W88/06
InventorLEE, JONG, HYUN
OwnerSAMSUNG ELECTRONICS CO LTD