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1. 发明申请

US20050245283A1 High frequency module 有权
标题翻译：高频模块
公开(公告)号：US20050245283A1
公开(公告)日：2005-11-03
申请号：US10523429
申请日：2003-07-22
申请人： Kevin Boyle , Antonius De Graauw , Robert Milsom
发明人： Kevin Boyle , Antonius De Graauw , Robert Milsom
IPC分类号： H04B1/40 , H04B1/48 , H04B1/04 , H01Q11/12 , H04B1/00
CPC分类号： H04B1/005 , H04B1/0057 , H04B1/40 , H04B1/406 , H04B1/48
摘要： A multi-mode radio module (22) comprises a terminal (11) for connection to an antenna (10). A transmitting branch (DCS/PCS) and a branching circuit are coupled to the terminal (11). The branching circuit comprises at least a first and a second branch for receiving signals in first and second frequency bands (DCS, PCS), respectively. Each of the first and second branches comprise, respectively, a phase shifting circuit (PS1, PS2), a BAW or SAW band pass filter (RXF2, RXF3) coupled to the phase shifting circuit, the bandwidth of the filter being selected to pass a wanted signal in one of the first and second frequency bands but reject an unwanted signal in the other of the second and first frequency bands, and a low noise amplifier (LNA2, LNA3) coupled to an output of the band pass filter. The response of each of the band pass filters (RXF2, RXF3) is phase shifted to present an open circuit at the wanted frequency in the other branch. Each of the phase shifting circuits (PS1, PS2) is impedance transforming so that higher impedance filters can be used.
摘要翻译：多模式无线电模块（22）包括用于连接到天线（10）的终端（11）。发送分支（DCS / PCS）和分支电路耦合到终端（11）。分支电路至少包括用于分别在第一和第二频带（DCS，PCS）中接收信号的第一和第二分支。第一和第二分支中的每一个分别包括耦合到移相电路的移相电路（PS 1，PS 2），BAW或SAW带通滤波器（RXF 2，RXF 3），滤波器的带宽为被选择以在第一和第二频带中的一个频带中通过有用信号，但是拒绝第二和第一频带中的另一个中的不期望信号，以及耦合到频带的输出的低噪声放大器（LNA 2，LNA 3）通过滤波器。每个带通滤波器（RXF 2，RXF 3）的响应被相移以在另一分支中以所需频率呈现开路。每个移相电路（PS 1，PS 2）是阻抗变换，以便可以使用更高阻抗的滤波器。

2. 发明申请

US20050107042A1 Transmitter and/or receiver module 审中-公开
标题翻译：发射器和/或接收器模块
公开(公告)号：US20050107042A1
公开(公告)日：2005-05-19
申请号：US10502789
申请日：2003-01-17
申请人： Antonius De Graauw
发明人： Antonius De Graauw
IPC分类号： H03H7/075 , H01Q9/16 , H03H7/38 , H04B1/04 , H04B1/40 , H04B1/44 , H04B1/48 , H04M1/00
CPC分类号： H04B1/40 , H04B1/0458 , H04B1/48
摘要： The transmitter and/or receiver module comprises a dipole antenna (28) and a matching circuit (26) matching the output impedance of the module to the antenna impedance, a switch circuit (24) for switching between received and transmitted signals, a power amplifier (30) for amplifying the transmitted signal, and a low-noise receiver amplifier (32) for amplifying the received signal, wherein the matching circuit (26) and the antenna (28) are designed to provide a bandpass filter function for the module. Differential signals are provided from the transmitter power amplifier (30) to the antenna (28) and/or from the antenna (28) to the receiver amplifier (32) without conversion of the differential signals to single-ended signals.
摘要翻译：发射器和/或接收器模块包括偶极天线（28）和与模块的输出阻抗匹配于天线阻抗的匹配电路（26），用于在接收和发射信号之间切换的开关电路（24），功率放大器（30），以及用于放大接收信号的低噪声接收放大器（32），其中匹配电路（26）和天线（28）被设计成为模块提供带通滤波器功能。从发射机功率放大器（30）到天线（28）和/或从天线（28）向接收机放大器（32）提供差分信号，而不将差分信号转换成单端信号。

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