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High-performance miniaturized bidirectional filter amplifier module

A technology of bidirectional filtering and amplifying components, applied in the direction of electrical components, transmission systems, impedance networks, etc., can solve problems such as large volume, lower product reliability and maintainability, complex system debugging, etc., to achieve small volume, high out-of-band The effect of suppressing properties

Inactive Publication Date: 2017-05-31
北京中科飞鸿科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the common filtering frequency band for transmitting and receiving in the miniaturized radio requires that the filter amplifier components used can perform multiplexing for transmitting and receiving, and require high out-of-band suppression and small volume of the components; while the amplifier is a one-way conducting element, and the filter band The higher the external suppression, the more stages are required, and the larger the volume, if it is directly processed on the system platform, it will inevitably cause complex system debugging, increase the number of failure factors, and reduce the reliability and maintainability of the product

Method used

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  • High-performance miniaturized bidirectional filter amplifier module

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specific Embodiment approach

[0017] The preferred embodiment of the high-performance miniaturized bidirectional filter amplifier assembly of the present invention is:

[0018] Including two amplifiers, two surface acoustic wave filters with the same frequency point and consistent performance, and two radio frequency switches;

[0019] The two amplifiers are placed side by side between the two radio frequency switches in opposite directions, are respectively connected to the radio frequency signal terminals of the two radio frequency switches, and correspond to the radio frequency ports of the two radio frequency switches respectively;

[0020] The radio frequency switch is controlled by the TTL level to gate one channel, and the other channel is closed, so as to select the conduction direction of the component, so that the component can be bidirectionally conducted;

[0021] The two surface acoustic wave filters are respectively connected with a radio frequency switch, and are respectively provided with a...

specific Embodiment

[0028] Such as figure 1 , Figure 2a , Figure 2b , Figure 2c As shown, this component uses two amplifiers, two SAW filters and two RF switches.

[0029] (1) The two amplifiers are placed side by side in the opposite direction between the two RF switches, and are respectively connected to the RF signal terminals of the RF switches. The RF ports of the two RF switches correspond one by one, through TTL The level control RF switch gates one channel, while the other channel is closed, so as to select the conduction direction of the component, so that the component can be bidirectionally conducted;

[0030] (2) Two surface acoustic wave filters with the same frequency point and the same performance are connected in series to form a cascaded form, which improves the out-of-band suppression capability of the component;

[0031] (3) The component adopts surface-mount packaged surface acoustic wave filter, integrated circuit amplifier and integrated radio frequency switch. Throug...

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Abstract

The invention discloses a high-performance miniaturized bidirectional filter amplifier module comprising two amplifiers, two surface acoustic wave filters with the same frequency points and consistent performance, and two alternative radio frequency switches, wherein the two amplifiers are arranged between the two radio frequency switches side by side on reverse directions, are respectively connected with radio frequency signal ends of the two radio frequency switches and are in one-to-one correspondence with the radio frequency ports of the two radio frequency switches; one of the two radio frequency switches is gated and the other one of the two radio frequency switches is closed by TTl level control so as to select a conduction direction of the module, and the module can be bidirectionally conducted; and the two surface acoustic wave filters are respectively connected with one radio frequency switch and are respectively provided with a signal port. On the premise of realizing bidirectional conduction performance of the filter amplifier module, a smaller volume and relatively high out of band suppression performance are guaranteed.

Description

technical field [0001] The invention relates to a wireless communication technology, in particular to a high-performance miniaturized bidirectional filtering and amplifying component. Background technique [0002] With the continuous development of radio stations, higher requirements are put forward for the system's anti-interference ability, multi-band compatibility, functional diversification and miniaturization. Filters play a very important role in determining the selectivity, sensitivity, and anti-jamming capabilities of radio transceivers. [0003] In the prior art, the common filtering frequency band for transmitting and receiving in the miniaturized radio requires that the filter amplifier components used can perform multiplexing for transmitting and receiving, and require high out-of-band suppression and small volume of the components; while the amplifier is a one-way conducting element, and the filter band The higher the external suppression, the more stages are r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03H9/64H04B1/40
CPCH03H9/64H04B1/40
Inventor 曹宁马宇东孙南刘璐张恩宇
Owner 北京中科飞鸿科技股份有限公司