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1. 发明授权

US4024478A Printed broadband A. C. grounded microwave terminations 失效
标题翻译：打印宽带A.C接地微波终端
公开(公告)号：US4024478A
公开(公告)日：1977-05-17
申请号：US622922
申请日：1975-10-17
申请人： Allen Robert Wolfe
发明人： Allen Robert Wolfe
IPC分类号： G06F17/50 , G06Q10/04 , H01P1/26 , H01P1/36 , H05K1/02 , H05K1/18 , H01P1/38
CPC分类号： G06Q10/04 , G06F17/5063 , H01P1/268 , H01P1/36 , H05K1/0237 , H05K1/181
摘要： A.C. grounded termination networks having multi-octave bandwidth capacity are provided in printed rf circuit form (e.g., microstrip, stripline) by fabricating a distributed element network as a series of alternating resistor-conductor elements having different circuit parameters. The circuit parameters are computed using an "exhaustive search" procedure involving computer optimization of the chain matrix equivalent expression of the voltage reflection coefficient for the network.
摘要翻译：具有多倍频程带宽容量的交流接地终端网络通过将分布式元件网络制造成具有不同电路参数的一系列交变电阻 - 导体元件，以印刷的rf电路形式（例如微带线，带状线）提供。使用“穷举搜索”程序计算电路参数，该过程涉及网络的电压反射系数的链式矩阵等效表达式的计算机优化。

2. 发明授权

US4023125A Printed broadband rf bias circuits 失效
标题翻译：印刷宽带rf偏置电路
公开(公告)号：US4023125A
公开(公告)日：1977-05-10
申请号：US622921
申请日：1975-10-17
申请人： Allen Robert Wolfe
发明人： Allen Robert Wolfe
IPC分类号： G06F17/50 , G06Q10/04 , H01P1/15 , H01P1/20 , H01P5/00
CPC分类号： G06Q10/04 , G06F17/5063 , H01P1/15 , H01P1/20
摘要： A printed broadband rf transmission line circuit is provided with a D.C. bias port in the form of a high impedance printed stub conductor connected between a ground point and the transmission line. Minimum attenuation of a broadband rf signal on the line is achieved by including in the transmission line a plurality of series-connected conductor segments having different line length and impedance values such that the transmission line and stub conductor configuration are tuned to provide a maximum voltage transmission coefficient across the D.C. bias port. The parameters for the series-connected transmission line segments and the stub conductor are selected by performing a computer optimization of the chain matrix equivalent expression of the voltage transmission coefficient for the series-connected transmission line segments together with the stub conductor.
摘要翻译：印刷的宽带rf传输线电路设置有连接在接地点和传输线之间的高阻抗印刷短路导体形式的直流偏置端口。通过在传输线中包括具有不同线路长度和阻抗值的多个串联连接的导体段来实现线路上的宽带rf信号的最小衰减，使得传输线和短截线导体配置被调谐以提供最大电压传输直流偏置端口的系数。串联传输线段和短截线导体的参数通过对串联传输线段与短截线导体的电压传输系数的链式矩阵等价表达式进行计算机优化来选择。

3. 发明授权

US4010430A Low loss, broadband switchable microwave step attenuator 失效
标题翻译：低损耗，宽带可切换微波步进电机
公开(公告)号：US4010430A
公开(公告)日：1977-03-01
申请号：US622923
申请日：1975-10-17
申请人： Allen Robert Wolfe
发明人： Allen Robert Wolfe
IPC分类号： H01P1/15 , H01P1/22
CPC分类号： H01P1/227 , H01P1/15
摘要： A printed rf circuit switchable step attenuator for frequencies in the Gigahertz range employs PIN diodes for switching a pi network in and out of a transmission line. The A.C. grounded terminations of the pi network are constructed through the use of low impedance, open end stubs, eliminating the need for plated over-edge ground connections. D.C. bias potential for controlling the switching diodes is coupled to the rf portion of the circuit by means including high impedance grounded stub conductors connected to the transmission line. To achieve broadband operation the admittance of the stub conductors is tuned out by configuring the transmission line as a series of differing line length and impedance sections which are arranged symmetrically with respect to the point of intersection between the grounded stub conductors and the line.

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