Power amplifier
    2.
    发明公开
    Power amplifier 有权
    功率放大器

    公开(公告)号:EP0945977A3

    公开(公告)日:2001-02-07

    申请号:EP99105961.9

    申请日:1999-03-24

    IPC分类号: H03F3/21 H03F3/60 H03F1/02

    CPC分类号: H03F3/602 H03F3/211

    摘要: A power amplifier has an input terminal for inputting a signal, input signal splitting parts for splitting the input signal into two signals each having equal power and phase difference of 180 degrees with respect to each other and outputting the two signals, first signal on-off selection parts for switching conduction/non-conduction of one of the output signals of the input signal splitting parts, first amplifying parts having an output matching circuit for amplifying the signal from the first signal on-off selection parts, second signal on-off selection parts for switching conduction/non-conduction of the signal outputted from the first amplifying parts, second amplifying parts having an output matching circuit for amplifying the other of the output signals from the input signal splitting parts, output signal combining parts for making phase difference of 180 degrees between the output of the second signal on-off selection parts and the output of the second amplifying parts and combining them, an output terminal for outputting the combined signal, and a bias on-off parts for switching on and off at least the first amplifying parts, wherein, when the output level is high, the first and second signal on-off selection parts are made on and, at the same time, the first and second amplifying parts are made on by the bias on-off parts, so that push-pull operation is performed, and when the output level is low, the first and second signal on-off selection parts is made off and the first amplifying parts is made off by the bias on-off parts and the second amplifying parts performs single-ended operation.

    摘要翻译: 功率放大器具有用于输入信号的输入端,用于将输入信号分成两个信号的输入信号分离部分,每个信号具有彼此相等的180度相位差的功率和相位差,并输出这两个信号,第一信号on-off 选择部分,用于切换输入信号分离部分的一个输出信号的导通/不导通;第一放大部分,具有输出匹配电路,用于放大来自第一信号开关选择部分的信号;第二信号开关选择 用于切换从第一放大部件输出的信号的导通/非导通的部件,具有输出匹配电路的第二放大部件,用于放大来自输入信号分离部件的另一个输出信号,输出信号组合部件, 第二信号开关选择部分的输出与第二放大部分和组合的输出之间的180度 用于输出组合信号的输出端子以及至少用于接通和断开第一放大部件的偏置开关部件,其中,当输出电平高时,第一和第二信号开关选择部件 并同时通过偏置开关部件接通第一和第二放大部件,从而执行推挽操作,并且当输出电平较低时,第一和第二信号接通 断开选择部件,并且第一放大部件由偏置开关部件断开,并且第二放大部件执行单端操作。

    Radio transceiver and circuit
    4.
    发明公开
    Radio transceiver and circuit 有权
    Funksendeempfängerund Schaltung

    公开(公告)号:EP0977368A2

    公开(公告)日:2000-02-02

    申请号:EP99114843.8

    申请日:1999-07-29

    IPC分类号: H04B1/40

    CPC分类号: H04B1/403

    摘要: When the radio circuit apparatus is transmitting, the output signal of the first local oscillator 102 is inputted to the transmitted frequency converter 112 as well as to the frequency divider 104, and then the output signal of the frequency divider 104 is inputted to the modulator 111. The modulator 111 modulates the output signal of the frequency divider 104 with a base band signal. The output signal of the modulator 111 is inputted to the transmitted frequency converter 112, to be converted to the frequency of a transmitted signal by the output signal of the first local oscillator 102. When the radio circuit apparatus is receiving, the output signal of the low noise amplifier 121 is inputted to the first frequency converter 122 to be converted to the first intermediate frequency by the output signal of the first local oscillator 102. The output signal of the filter 123 is inputted to the second frequency converter circuit 124 to be converted to the second intermediate frequency by the output signal of the second local oscillator 103. Thereby, unnecessary components for transmission can be easily lowered to make it possible to miniaturize the radio circuit apparatus.

    摘要翻译: 当无线电电路装置正在发送时,第一本地振荡器102的输出信号也被输入到发送的频率转换器112以及分频器104,然后分频器104的输出信号被输入到调制器111 调制器111用基带信号调制分频器104的输出信号。 调制器111的输出信号被输入到发送的频率转换器112,通过第一本机振荡器102的输出信号转换为发送信号的频率。当无线电电路装置正在接收时,输出信号 低噪声放大器121被输入到第一频率转换器122,以通过第一本机振荡器102的输出信号转换成第一中频。滤波器123的输出信号被输入到第二频率转换器电路124进行转换 通过第二本地振荡器103的输出信号输出到第二中频。由此,可以容易地降低用于传输的不必要的部件,使得能够使无线电电路装置小型化。

    Power amplifier
    5.
    发明公开
    Power amplifier 有权
    Leistungsverstärker

    公开(公告)号:EP0945977A2

    公开(公告)日:1999-09-29

    申请号:EP99105961.9

    申请日:1999-03-24

    IPC分类号: H03F3/21 H03F3/60

    CPC分类号: H03F3/602 H03F3/211

    摘要: A power amplifier has an input terminal for inputting a signal, input signal splitting parts for splitting the input signal into two signals each having equal power and phase difference of 180 degrees with respect to each other and outputting the two signals, first signal on-off selection parts for switching conduction/non-conduction of one of the output signals of the input signal splitting parts, first amplifying parts having an output matching circuit for amplifying the signal from the first signal on-off selection parts, second signal on-off selection parts for switching conduction/non-conduction of the signal outputted from the first amplifying parts, second amplifying parts having an output matching circuit for amplifying the other of the output signals from the input signal splitting parts, output signal combining parts for making phase difference of 180 degrees between the output of the second signal on-off selection parts and the output of the second amplifying parts and combining them, an output terminal for outputting the combined signal, and a bias on-off parts for switching on and off at least the first amplifying parts, wherein, when the output level is high, the first and second signal on-off selection parts are made on and, at the same time, the first and second amplifying parts are made on by the bias on-off parts, so that push-pull operation is performed, and when the output level is low, the first and second signal on-off selection parts is made off and the first amplifying parts is made off by the bias on-off parts and the second amplifying parts performs single-ended operation.

    摘要翻译: 功率放大器具有用于输入信号的输入端子,用于将输入信号分离为两个信号的输入信号分离部件,每个信号具有相互相互的180度相等的功率和相位差,并输出两个信号,第一信号开关 用于切换输入信号分离部分的输出信号之一的导通/不导通的选择部分,具有用于放大来自第一信号开 - 关选择部分的信号的输出匹配电路的第一放大部分,第二信号开 - 关选择 用于切换从第一放大部分输出的信号的导通/非导通的部分,第二放大部分具有用于放大来自输入信号分离部分的另一个输出信号的输出匹配电路,用于使相位差产生相位差的输出信号组合部分 第二信号开 - 关选择部分的输出与第二放大部分的输出和组合之间的180度 用于输出组合信号的输出端子和用于至少对第一放大部件进行导通和截止的偏置通断部分,其中,当输出电平较高时,第一和第二信号开关选择部分 在第一和第二放大部分由偏置通断部分制成,从而进行推挽操作,并且当输出电平低时,第一和第二信号接通 关断选择部分被消除,并且第一放大部分被偏置开关部分截止,并且第二放大部件执行单端操作。

    Radio transceiver and circuit
    7.
    发明公开
    Radio transceiver and circuit 有权
    无线电收发器和电路

    公开(公告)号:EP0977368A3

    公开(公告)日:2003-04-02

    申请号:EP99114843.8

    申请日:1999-07-29

    IPC分类号: H04B1/40

    CPC分类号: H04B1/403

    摘要: When the radio circuit apparatus is transmitting, the output signal of the first local oscillator 102 is inputted to the transmitted frequency converter 112 as well as to the frequency divider 104, and then the output signal of the frequency divider 104 is inputted to the modulator 111. The modulator 111 modulates the output signal of the frequency divider 104 with a base band signal. The output signal of the modulator 111 is inputted to the transmitted frequency converter 112, to be converted to the frequency of a transmitted signal by the output signal of the first local oscillator 102. When the radio circuit apparatus is receiving, the output signal of the low noise amplifier 121 is inputted to the first frequency converter 122 to be converted to the first intermediate frequency by the output signal of the first local oscillator 102. The output signal of the filter 123 is inputted to the second frequency converter circuit 124 to be converted to the second intermediate frequency by the output signal of the second local oscillator 103. Thereby, unnecessary components for transmission can be easily lowered to make it possible to miniaturize the radio circuit apparatus.

    Antenna switching device
    8.
    发明公开
    Antenna switching device 失效
    Antennenschalter

    公开(公告)号:EP1146656A2

    公开(公告)日:2001-10-17

    申请号:EP01113674.4

    申请日:1994-08-31

    IPC分类号: H04B1/48

    CPC分类号: H04B1/48 H01Q21/28 H01Q21/30

    摘要: An antenna switching device of the present invention includes: a transmitting terminal for receiving a transmitting signal; a first antenna terminal connected to a first antenna; a second antenna terminal connected to a second antenna; a receiving terminal for outputting receiving signals received at the first antenna terminal and the second antenna terminal; selecting unit for selecting one mode among a first mode for outputting a signal corresponding to the transmitting signal to the first antenna terminal, second mode for outputting the receiving signal received at the first antenna to the receiving terminal and a third mode for outputting the receiving signal received at the second antenna to the receiving terminal.

    摘要翻译: 本发明的天线切换装置包括:发送端子,用于接收发送信号; 连接到第一天线的第一天线端子; 连接到第二天线的第二天线端子; 用于输出在第一天线端子和第二天线端子处接收的接收信号的接收终端; 选择单元,用于在用于将与发送信号相对应的信号输出到第一天线终端的第一模式中选择一种模式;第二模式,用于将在第一天线处接收的接收信号输出到接收终端;第三模式,用于输出接收信号 在第二天线处接收到接收终端。

    Antenna switching device
    9.
    发明公开
    Antenna switching device 失效
    天线切换装置

    公开(公告)号:EP0641090A3

    公开(公告)日:1995-10-04

    申请号:EP94113613.7

    申请日:1994-08-31

    CPC分类号: H04B1/48 H01Q21/28 H01Q21/30

    摘要: An antenna switching device of the present invention includes: a transmitting terminal for receiving a transmitting signal; a first antenna terminal connected to a first antenna; a second antenna terminal connected to a second antenna; a receiving terminal for outputting receiving signals received at the first antenna terminal and the second antenna terminal; a selecting unit for selecting one mode among a first mode for outputting a signal corresponding to the transmitting signal to the first antenna terminal, a second mode for outputting the receiving signal received at the first antenna to the receiving terminal, and a third mode for outputting the receiving signal received at the second antenna to the receiving terminal.

    摘要翻译: 本发明的天线切换装置包括:发送终端,用于接收发送信号; 连接到第一天线的第一天线端子; 连接到第二天线的第二天线端子; 接收终端,用于输出在第一天线终端和第二天线终端接收的接收信号; 选择单元,用于从用于向第一天线端子输出对应于发送信号的信号的第一模式中选择一种模式;用于将在第一天线处接收到的接收信号输出到接收端子的第二模式;以及用于输出 将在第二天线处接收的接收信号发送给接收终端。

    Antenna switching device
    10.
    发明公开
    Antenna switching device 失效
    Antennenschalter。

    公开(公告)号:EP0641090A2

    公开(公告)日:1995-03-01

    申请号:EP94113613.7

    申请日:1994-08-31

    CPC分类号: H04B1/48 H01Q21/28 H01Q21/30

    摘要: An antenna switching device of the present invention includes: a transmitting terminal for receiving a transmitting signal; a first antenna terminal connected to a first antenna; a second antenna terminal connected to a second antenna; a receiving terminal for outputting receiving signals received at the first antenna terminal and the second antenna terminal; a selecting unit for selecting one mode among a first mode for outputting a signal corresponding to the transmitting signal to the first antenna terminal, a second mode for outputting the receiving signal received at the first antenna to the receiving terminal, and a third mode for outputting the receiving signal received at the second antenna to the receiving terminal.

    摘要翻译: 本发明的天线切换装置包括:发送端子,用于接收发送信号; 连接到第一天线的第一天线端子; 连接到第二天线的第二天线端子; 接收终端,用于输出在第一天线端子和第二天线端子处接收的接收信号; 选择单元,用于在用于将与发送信号相对应的信号输出到第一天线终端的第一模式中选择一种模式;第二模式,用于将在第一天线接收的接收信号输出到接收终端;以及第三模式,用于输出 在第二天线处接收的接收信号到接收终端。