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    • 1. 发明授权
    • Method and apparatus for reducing interference in a time division duplex
communication system
    • 用于减少时分双工通信系统中的干扰的方法和装置
    • US5515365A
    • 1996-05-07
    • US316975
    • 1994-10-03
    • Terence E. SumnerStephen H. DunkertonJohn R. Melton
    • Terence E. SumnerStephen H. DunkertonJohn R. Melton
    • H04L5/14
    • H04L5/1492
    • A first transmitter (103) reduces an interference in a time division duplex (TDD) communication system (100). The first transmitter (103) alternates from a transmit state in which a first information signal (130) is transmitted to a standby state in which a residual signal (132) is transmitted. The first transmitter (103) includes a transmitter section (142) and a controller (141). The transmitter section (142 transmits the first information signal (130) and the residual signal (132). The transmitter section (142) includes a power amplifier (144) to amplify the first information signal (130) and the residual signal (132) to a power level; and an exciter (143) to control a carrier frequency of the first information signal (130) and the residual signal (132). The controller (141) is coupled to the power amplifier (144) and the exciter (143), for adjusting the power level and setting the carrier frequency.
    • 第一发射机(103)减少时分双工(TDD)通信系统(100)中的干扰。 第一发送器(103)从发送第一信息信号(130)的发送状态与发送残留信号(132)的待机状态交替。 第一发射机(103)包括发射机部分(142)和控制器(141)。 发射机部分(142)发送第一信息信号(130)和残余信号(132),发射机部分(142)包括放大第一信息信号(130)和剩余信号(132)的功率放大器(144) 控制器(141)耦合到功率放大器(144)和激励器(141),该激励器(143)耦合到功率放大器(144)和功率放大器 143),用于调整功率电平和设置载波频率。
    • 2. 发明授权
    • Method and apparatus for self-adjusting a multistage radio frequency
power amplifier
    • 用于自调整多级射频功率放大器的方法和装置
    • US5561395A
    • 1996-10-01
    • US379707
    • 1995-01-27
    • John R. MeltonJoseph G. SchultzTerence E. Sumner
    • John R. MeltonJoseph G. SchultzTerence E. Sumner
    • H03G3/30H03F3/68H03G3/20
    • H03G3/3042
    • A method and apparatus (100) is for providing self adjustment of a multistage radio frequency power amplifier (RFPA) (200). The apparatus (100) includes a transmit input stage (150) and a controller (110). Included in the multistage RFPA (200) are N RFPA stages (201) coupled in parallel to an N-way RF splitter (210) and to an N-way RF combiner (220), and a power sense stage (225) which generates a forward power sense signal (167). Each of the N RFPA stages (210) includes an adjustable power amplifier (PA) (300). The controller (110) optimizes a gain match and a phase match of the multistage RFPA (200) by adjusting signals which are coupled to each adjustable PA (300). The adjustments are made in response to the forward power sense signal (167) while the controller (110) controls the test input stage (150) which generates a predetermined test signal (155).
    • 一种用于提供多级射频功率放大器(RFPA)(200)的自调整的方法和装置(100)。 装置(100)包括发射输入级(150)和控制器(110)。 包括在多级RFPA(200)中的是与N路RF分离器(210)和N路RF组合器(220)并联耦合的N个RFPA级(201)和产生 正向功率检测信号(167)。 每个N RFPA级(210)包括可调功率放大器(PA)(300)。 控制器(110)通过调节耦合到每个可调节PA(300)的信号来优化多级RFPA(200)的增益匹配和相位匹配。 响应于正向功率检测信号(167)进行调整,而控制器(110)控制产生预定测试信号(155)的测试输入级(150)。