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公开(公告)号：US20230231542A1
公开(公告)日：2023-07-20
申请号：US17648279
申请日：2022-01-18
Applicant: Raytheon Company
Inventor： Steven M. Lardizabal
CPC classification number: H03H11/20 , H03H7/19 , H03K2005/00286
Abstract: Apparatus and associated methods relate to a low-noise wideband active phase shifter. The low-noise wideband active phase shifter includes first and second transconductance cells, a fixed LC series network and a tunable LC series network configured to form an all-pass lattice network. The first and second transconductance cells, each include a transistor, a feedback network, and a transistor biasing network. The transistor has an input terminal and an output terminal. The negative feedback network electrically couples the input and output terminals of the transistor. The biasing network provides input and output biasing of the transistor. The fixed LC series network connects between the first and the second transconductance cells. The tunable LC series network connects between the first and the second transconductance cells.
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公开(公告)号：US09634703B2
公开(公告)日：2017-04-25
申请号：US14812283
申请日：2015-07-29
Applicant: Raytheon Company
Inventor： Zhaoyang C. Wang , Steven M. Lardizabal
CPC classification number: H04B1/123 , H03K5/26 , H04B1/1027 , H04B1/1036 , H04B1/18
Abstract: A method and receiver for detecting a signal wherein the signal is encoded the signal with a pair of spaced predetermined frequencies and wherein energy is detected in each of the pair of predetermined frequencies and in a predetermined frequency between the pair of predetermined frequencies. Energy detected in each of the pair of predetermined frequencies is compared with the energy detected in the predetermined frequency between the pair of predetermined frequencies. The detecting includes passing the encoded signal through narrow band filters, each one of the filters being tuned to a corresponding one of the pair of predetermined frequencies and the predetermined frequency between the pair of predetermined frequencies.
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公开(公告)号：US20170033817A1
公开(公告)日：2017-02-02
申请号：US14812283
申请日：2015-07-29
Applicant: RAYTHEON COMPANY
Inventor： Zhaoyang C. Wang , Steven M. Lardizabal
CPC classification number: H04B1/123 , H03K5/26 , H04B1/1027 , H04B1/1036 , H04B1/18
Abstract: A method and receiver for detecting a signal wherein the signal is encoded the signal with a pair of spaced predetermined frequencies and wherein energy is detected in each of the pair of predetermined frequencies and in a predetermined frequency between the pair of predetermined frequencies. Energy detected in each of the pair of predetermined frequencies is compared with the energy detected in the predetermined frequency between the pair of predetermined frequencies. The detecting includes passing the encoded signal through narrow band filters, each one of the filters being tuned to a corresponding one of the pair of predetermined frequencies and the predetermined frequency between the pair of predetermined frequencies.
Abstract translation: 一种用于检测信号的方法和接收器，其中所述信号以一对间隔的预定频率被编码，并且其中在所述一对预定频率中的每一个以及所述一对预定频率之间的预定频率中检测能量。 将在一对预定频率中的每一个中检测的能量与在一对预定频率之间的预定频率中检测到的能量进行比较。 该检测包括使经编码的信号通过窄带滤波器，每个滤波器被调谐到一对预定频率中的相应一个和预定频率对之间的预定频率。
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