CN213521849U

CN213521849U - Cavity structure of frequency synthesizer

Info

Publication number: CN213521849U
Application number: CN202022806217.5U
Authority: CN
Inventors: 唐朝辉; 寇月海; 郑敏
Original assignee: Chengdu Zhongke Yixin Technology Co ltd
Current assignee: Chengdu Zhongke Yixin Technology Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-06-22
Anticipated expiration: 2030-11-27

Abstract

The utility model discloses a cavity structure of a frequency synthesizer, which belongs to the technical field of frequency synthesizers and comprises a shell, wherein a partition plate is arranged in the shell, the upper surface of the partition plate is provided with a first channel cavity, a crystal vibration cavity, a first local vibration cavity and a second local vibration cavity, the lower surface of the partition plate is provided with a control cavity, a second channel cavity and a third local vibration cavity, and a plurality of channels are respectively arranged in the first channel cavity and the second channel cavity; the isolation of the components arranged on the upper surface and the lower surface of the partition board is realized through the matching of the partition board and the shell, and the isolation of the components is realized through the cavities arranged on the same side of the components, so that the interference caused by the difference of indexes such as working frequency bands, output power and the like between the components is avoided, and the function stability of the frequency synthesizer is ensured.

Description

Cavity structure of frequency synthesizer

Technical Field

The utility model belongs to the technical field of the frequency synthesizer, a frequency synthesizer cavity structures is related to.

Background

The frequency synthesizer is a key device for determining the performance of an electronic system, and increasingly high requirements are put forward on the frequency synthesizer along with the development of technologies such as communication, digital television, satellite positioning, aerospace, radar, electronic countermeasure and the like.

The existing frequency synthesizer is usually provided with only one processing link, and the components for processing the link are uniformly arranged in one cavity, but due to the difference of indexes such as working frequency band, output power and the like, interference exists between the components, and the function of the frequency synthesizer is influenced.

Disclosure of Invention

The utility model aims to provide a: the cavity structure of the frequency synthesizer is provided, and the problem that the function of the frequency synthesizer is influenced due to the fact that the component is interfered with the component due to the difference of indexes such as working frequency band and output power is solved.

The utility model adopts the technical scheme as follows:

the utility model provides a frequency synthesizer cavity structures, includes the casing, be provided with the baffle in the casing, the upper surface of baffle is provided with first passageway chamber, brilliant chamber, the first originally chamber and the second originally chamber of shaking, the lower surface of baffle is provided with control chamber, second passageway chamber and the third originally chamber of shaking, first passageway chamber and second passageway intracavity all are provided with a plurality of passageways.

Furthermore, a communication port, a power port and a plurality of output ports are arranged on the side surface of the shell, and each output port corresponds to one channel.

Furthermore, a corresponding first printed board is arranged in the channel of the first channel cavity, and a corresponding second printed board is arranged in the channel of the second channel cavity.

Further, an internal crystal oscillator is arranged in the crystal oscillator cavity.

Further, a first local oscillation source is arranged in the first local oscillation cavity, a second local oscillation source is arranged in the second local oscillation cavity, and a third local oscillation source is arranged in the second local oscillation cavity.

Further, the control cavity is provided with a control circuit board, an attenuator and a power supply.

Furthermore, the control circuit board, the attenuator, the power supply, the internal crystal oscillator, the first printed board, the first local oscillation source and the second local oscillation source form a first processing link; and the control circuit board, the attenuator, the power supply, the internal crystal oscillator, the second printed board and the third local oscillation source form a second processing link.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model relates to a frequency synthesizer cavity structures realizes setting up the isolation at the part of baffle upper surface and lower surface through baffle and casing cooperation, to lieing in the part with one side, realizes the isolation of part through each cavity that sets up, avoids the interference that leads to owing to the difference of indexes such as working frequency channel, output between the part, guarantees the stability of frequency synthesizer function.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that for those skilled in the art, other relevant drawings can be obtained according to the drawings without inventive effort, wherein:

fig. 1 is a schematic structural diagram of the present invention;

the labels in the figure are: the device comprises a shell 1, a partition plate 2, a first channel cavity 3, a crystal oscillation cavity 4, a first local oscillation cavity 5, a second local oscillation cavity 6, a control cavity 7, a second channel cavity 8, a third local oscillation cavity 9, a communication port 10, a power port 11 and an output port 12.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Example 1

As shown in fig. 1, the utility model provides a frequency synthesizer cavity structure, including casing 1, be provided with baffle 2 in the casing 1, baffle 2's upper surface is provided with first passageway chamber 3, crystal oscillator chamber 4, first originally, shakes chamber 5 and second originally and shakes chamber 2, baffle 2's lower surface is provided with control chamber 7, second passageway chamber 8 and third originally, the chamber 9 that shakes, all be provided with a plurality of passageways in first passageway chamber 3 and the second passageway chamber 8.

The utility model discloses: realize setting up the isolation at the part of 2 upper surfaces of baffle and lower surfaces through baffle 2 and the cooperation of casing 1, to lieing in the part with one side, realize the isolation of part through each cavity that sets up, avoid the interference that leads to because the difference of indexes such as operating frequency channel, output between the part, guarantee the stability of frequency synthesizer function.

Preferably, the side surface of the housing 1 is provided with a communication port 10, a power port 11 and a plurality of output ports 12, and each output port 12 corresponds to one channel. In operation, communication with the outside is performed through the communication port 10, and connection to the external power source is performed through the power port 11.

Example 2

On the basis of embodiment 1, as shown in fig. 1, a corresponding first printed board is arranged in a channel of the first channel cavity 3, and a corresponding second printed board is arranged in a channel of the second channel cavity 8; an internal crystal oscillator is arranged in the crystal oscillation cavity 4; a first local vibration source is arranged in the first local vibration cavity 5, a second local vibration source is arranged in the second local vibration cavity 2, and a third local vibration source is arranged in the second local vibration cavity 2; the control cavity 7 is provided with a control circuit board, an attenuator and a power supply; the control circuit board, the attenuator, the power supply, the internal crystal oscillator, the first printed board, the first local oscillation source and the second local oscillation source form a first processing link; and the control circuit board, the attenuator, the power supply, the internal crystal oscillator, the second printed board and the third local oscillation source form a second processing link.

In this embodiment, the frequency synthesizer is provided with two processing links, wherein the first processing link and the second processing link share the control circuit board, the attenuator, the power supply, and the internal crystal oscillator, and the first processing link or/and the first processing link can be adopted, so that the frequency synthesizer is convenient to adapt to various use scenarios, highly integrated, and beneficial to miniaturization of the frequency synthesizer. The printed board is formed by a coupler, an amplifier, a mixer, a filter, and the like, and the coupler, the amplifier, the mixer, the filter, and the like are integrated into one core board, and the structure of the printed board is set as necessary.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalents and improvements made by those skilled in the art within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A frequency synthesizer cavity structure is characterized in that: the vibration isolation device comprises a housing, a partition board is arranged in the housing, a first channel cavity, a crystal vibration cavity, a first vibration cavity and a second vibration cavity are arranged on the upper surface of the partition board, a control cavity, a second channel cavity and a third vibration cavity are arranged on the lower surface of the partition board, and a plurality of channels are arranged in the first channel cavity and the second channel cavity.

2. The cavity structure of the frequency synthesizer of claim 1, wherein: the side of the shell is provided with a communication port, a power supply port and a plurality of output ports, and each output port corresponds to one channel.

3. The cavity structure of the frequency synthesizer of claim 1, wherein: and a corresponding first printed board is arranged in the channel of the first channel cavity, and a corresponding second printed board is arranged in the channel of the second channel cavity.

4. The cavity structure of claim 3, wherein: an internal crystal oscillator is arranged in the crystal oscillator cavity.

5. The cavity structure of claim 4, wherein: the first local oscillation cavity is internally provided with a first local oscillation source, the second local oscillation cavity is internally provided with a second local oscillation source, and the second local oscillation cavity is internally provided with a third local oscillation source.

6. The cavity structure of claim 5, wherein: the control cavity is provided with a control circuit board, an attenuator and a power supply.

7. The cavity structure of claim 6, wherein: the control circuit board, the attenuator, the power supply, the internal crystal oscillator, the first printed board, the first local oscillation source and the second local oscillation source form a first processing link; and the control circuit board, the attenuator, the power supply, the internal crystal oscillator, the second printed board and the third local oscillation source form a second processing link.