Switch circuit and switch chip
A switch circuit and switch technology, applied in electronic switches, electrical components, pulse technology, etc., can solve the problems of switch insertion loss and poor isolation performance, and achieve the effects of improving standing wave performance, compact structure, and reasonable layout
Pending Publication Date: 2019-08-16
THE 13TH RES INST OF CHINA ELECTRONICS TECH GRP CORP
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Problems solved by technology
[0004] The embodiment of the present invention provides a switch circuit and a switch chip, aiming to solve the problem of poor insertion loss and isolation performance of the current switch composed of field effect transistors
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[0024] In order to enable those skilled in the art to better understand this solution, the technical solution in this solution embodiment will be clearly described below in conjunction with the accompanying drawings in this solution embodiment. Obviously, the described embodiment is a part of this solution Examples, but not all examples. Based on the embodiments in this solution, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of this solution.
[0025] The term "comprising" and any other variants in the description and claims of this solution and the above drawings mean "including but not limited to", and are intended to cover non-exclusive inclusion. In addition, the terms "first" and "second", etc. are used to distinguish different objects, not to describe a specific order.
[0026] The realization of the present invention is described in detail below in conjunction with specific accompa...
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The invention discloses a switch circuit and a switch chip. The switch circuit comprises at least one switch channel module; the switch channel module comprises at least three switch tube units and atransmission line. The first end of the transmission line is the input end of the switch channel module, and the second end of the transmission line is the output end of the switch channel module. Thetransmission line is provided with an interface; the first input end of each switch tube unit is connected with one interface on the transmission line, and at most one switch tube unit is connected to one interface; and the second input end of each switching tube unit is externally connected with a voltage source. The switch channel module adopts a structure that at least three switch tube unitsare connected in parallel, the structure is compact, the layout is reasonable, and the performance of insertion loss, isolation and the like of a switch composed of field effect transistors is improved.
Description
technical field [0001] The invention relates to the technical field of electronic circuits, in particular to a switch circuit and a switch chip. Background technique [0002] The switch composed of field effect transistors has the advantages of simple bias network, small control current, simplified driving circuit, and fast switching speed. In addition, the realization of the field effect transistor switch enables a chip with only a few square millimeters to have more functions, high performance, and convenient application. [0003] The insertion loss and isolation performance of the switch composed of the current field effect transistor is not good, which affects the use of the field effect transistor switch. Contents of the invention [0004] Embodiments of the present invention provide a switch circuit and a switch chip, aiming at solving the problems of poor insertion loss and isolation performance of switches composed of field effect transistors. [0005] The first ...
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Login to View More IPC IPC(8): H03K17/687
CPCH03K17/687
Inventor 王雨桐孟范忠林勇薛昊东
Owner THE 13TH RES INST OF CHINA ELECTRONICS TECH GRP CORP