TDD-TYPE POWER AMPLIFICATION MODULE, ESPECIALLY CONCERNED WITH EXECUTING AN AMPLIFICATION OPERATION IN A TRANSMITTING MODE ONLY AND SERVING AS A TRANSMISSION LINE IN A RECEIVING MODE

• Main Author: PARK, JA YEONG
• Format: Patent
• Language: English; Korean
• Published: 10.12.2004
• Edition: 7
• Subjects: AMPLIFIERS; BASIC ELECTRONIC CIRCUITRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION ANDCOMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION ANDCOMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWNENERGY USE; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSMISSION; WIRELESS COMMUNICATIONS NETWORKS

PURPOSE: A TDD(Time Division Duplex)-type amplification module is provided to minimize the power consumption by executing an amplification operation in a TDD method so that power can be consumed as needed only. CONSTITUTION: Rx/Tx signals are inputted and outputted through the first and second ports(P1,P2). The first transmission line(L1), of which one end is connected to the first port(P1) through the first capacitor(C1), has a length of 1/4 for the wavelength of the Rx/Tx signals. The second transmission line(L2), of which one end is connected to the other end of the first transmission line(L1) and of which the other end is connected to the second port(P2) through the fifth capacitor(C5), has a length of 1/4 for the wavelength of the Rx/Tx signals. The cathode of the first pin diode(D1) is connected to the first port(P1) through the first capacitor(C1). The cathode of the second pin diode(D2) is connected to the second port(P2) through the fifth capacitor(C5). A matching network(41), connected to the anode of the first pin diode(D1) through the second capacitor(C2), executes impedance matching. A power amplifier(42), operated according to an inputted TDD control signal, amplifies a TX signal inputted through the matching network(41).