A uv RF switch network with low insertion loss and high isolation

A technology of radio frequency switch and high isolation, which is applied in the field of radio frequency switch network and UV frequency band radio frequency switch network. and other problems, to achieve the effect of small size, meeting the requirements of isolation, and flexible methods

Active Publication Date: 2019-11-15
CHINA ELECTRONICS TECH GRP NO 26 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Gallium arsenide switch isolation index is not very high, relay switch switching time is longer
In addition, the usual RF switch network adopts a planar cover design structure, resulting in poor sealing between the cavity and the cover, high signal leakage between the cavities, and insufficient isolation between the channels of the RF switch network

Method used

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  • A uv RF switch network with low insertion loss and high isolation
  • A uv RF switch network with low insertion loss and high isolation
  • A uv RF switch network with low insertion loss and high isolation

Examples

Experimental program
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Embodiment Construction

[0022] The UV radio frequency switch network with low insertion loss and high isolation of the present invention is composed of n input switch paths and m output switch paths, and each input switch path is connected in series with all output switch paths to form a network structure, thereby forming n×m switching paths.

[0023] The circuit principle design of each input-to-output switch channel of the RF switch network is the same. The following uses IN1→OUT1 as an example to describe the circuit composition of each RF switch channel in detail. see image 3 , each input switch path includes input port IN1, capacitor C1, PIN diode 1, PIN diode 2, filter inductor L1 and bias resistor R1, each output switch path includes PIN diode 3, PIN second Tube 4, filter inductor L3, bias resistor R3, capacitor C3 and output port OUT1, in which capacitors C1 and C3 realize DC blocking function, input port, capacitor C1, PIN diode 1, PIN diode 2, PIN second Tube 3, PIN diode 4, capacitor C3...

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Abstract

The invention discloses a UV radio frequency (RF) switch network with low insertion losses and high isolation. The UV RF switch network comprises n input switch paths and m output switch paths, wherein each input switch path is connected in series with all the output switch paths to form a network structure, so that n x m switch paths are formed; the UV RF switch network is packaged in an enclosed cavity formed by a substrate and cover plates; a plurality of separated partition cavities are formed in the cavity through partition plates; each input switch path and each output switch path are respectively arranged in two of the partition cavities; RF signals between the partition cavities corresponding to the input switch paths and the partition cavities corresponding to the output switch paths are connected through RF cables; and the cover plates are respectively arranged on the two sides of the substrate, so that the enclosed cavity with an upper layer and a lower layer is formed. The UV RF switch network has the characteristics of small size and high isolation, and can not only meet the isolation requirements but also achieve the minimum insertion losses.

Description

technical field [0001] The invention relates to a radio frequency switch network, in particular to a UV frequency band radio frequency switch network with low insertion loss and high isolation, which is used for radio frequency system reconfiguration to realize radio frequency channel switching function, and belongs to the technical field of radio frequency switches. Background technique [0002] Driven by demand and driven by technology, the structure of the radio frequency system has changed from separation to integration and modularization, and the radio frequency switch network is an indispensable part to realize channel integration and modularization of the radio frequency system. RF switch networks are widely used in satellite communication systems, communication navigation systems, and microwave test systems. Especially in communication system design, since the quality of the signal is positively correlated with the efficiency of the communication system, in the recon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/401H04B1/40
CPCH04B1/40H04B1/401
Inventor 李庆洪唐云波叶锋
Owner CHINA ELECTRONICS TECH GRP NO 26 RES INST
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