CN204407459U - A kind of miniaturization times frequency module based on filter and structural member matching design - Google Patents

Abstract

The utility model belongs to microwave module design field, provides a kind of miniaturization times frequency module based on filter and structural member matching design, comprising: upper cover plate [1], multilayer micro belt board [2] and housing [3]; Described upper cover plate [1] comprises cover plate [10], the first dividing plate [11], second partition [12]; First dividing plate [11] upper fluted [110], second partition [12] upper fluted [120]; First dividing plate [11] and second partition [12] all have the screwed hole perpendicular to cover plate [10], hold-down screw is through housing [3], and multilayer micro belt board [2] and upper cover plate [1] are fixed together; Described multilayer micro belt board [2] comprises the micro-band dielectric-slab [20] of multilayer, 2 filters; One of them filter is placed on the micro-band dielectric-slab [20] of multilayer of groove [120] below on second partition [12], and second filter is placed on the micro-band dielectric-slab [20] of multilayer of groove [110] below on the first dividing plate [11].The utility model integrated level is high, can multiband, seriation development, in fields such as communication, navigation, radars, there is very big promotional value.

Description

A kind of miniaturization times frequency module based on filter and structural member matching design

Technical field

The utility model belongs to microwave module design field, is a kind of novel structure and microwave circuit matching design.

Background technology

Along with the development of electronic technology, miniaturization has become a kind of development trend, and in the design process of microwave module, required design space is more and more less, and microwave circuits and space structure design also can be subject to many-sided restrictions such as volume requirement.When not sacrificing microwave module performance index, adopting microwave hybrid integrated circuit, being designed by rational space layout and structure, microstrip circuit cabling, can high-performance be realized.

Summary of the invention

Goal of the invention: a kind of miniaturization times frequency module based on filter and structural member matching design is provided.

Technical scheme:

Based on a miniaturization times frequency module for filter and structural member matching design, comprising:

Upper cover plate [1], multilayer micro belt board [2] and housing [3];

Described upper cover plate [1] comprises cover plate [10], the first dividing plate [11], second partition [12]; First dividing plate [11] upper fluted [110], second partition [12] upper fluted [120]; First dividing plate [11] and second partition [12] all have the screwed hole perpendicular to cover plate [10], hold-down screw is through housing [3], and multilayer micro belt board [2] and upper cover plate [1] are fixed together; The position that wherein multilayer micro belt board [2] contacts with the first dividing plate [11], second partition [12] is the gold-plated copper sheet of ground connection;

Described multilayer micro belt board [2] comprises the micro-band dielectric-slab [20] of multilayer, switch, amplifier, resistance, electric capacity, inductance, 2 filters; One of them filter is placed on the micro-band dielectric-slab [20] of multilayer of groove [120] below on second partition [12], second filter is placed on the micro-band dielectric-slab [20] of multilayer of groove [110] below on the first dividing plate [11], and switch, amplifier, resistance, electric capacity, inductance are placed on the micro-band dielectric-slab [20] of multilayer;

Described housing [3] comprises shell structure part [30], described shell structure part [30] has fundamental frequency input interface [31], radio frequency output interface [32], feedthrough capacitor installing hole [33].

Beneficial effect:

The utility model is when volume and limited space, S shape cavity body structure and microstrip circuit cabling is adopted to design, cavitys different for three internal signal frequencies is connected by aperture, and by the micro belt board immediately below aperture places filter, achieve the filtering to signal, and utilize the higher cutoff frequency characteristic of small structure to overcome mutual crosstalk in three cavitys between signal, inhibit the generation of microwave signal higher mode.Control at more than 65dBc by the spuious of test output signal, second harmonic controls at 50dBc.Solve the problem that the length of frequency multiplication link is long, greatly improve the flexibility of design, and by adding the mode of single-pole double-throw switch (SPDT) before varactor doubler, achieve modulation function, modulation depth is greater than 80dB.

The utility model also with aperture immediately below micro belt board on do not place filter situation contrast, result shows when not adding filter, exports main signal power degradation, simultaneously spuious and harmonic excess.

The whole circuit devcie of the utility model adopts plane microwave hybrid integrated circuit to make, and degree of integration is high, and machine debugging workload is little.

The utility model integrated level is high, and therefore volume is little, compact conformation, cost are low, simultaneously can multiband, seriation development, in fields such as communication, navigation, radars, there is great application value.

Accompanying drawing explanation

Fig. 1 is explosion perspective view of the present utility model.

Fig. 2 is the side perspective structural representation of upper cover plate of the present utility model.

Fig. 3 is the upward view of upper cover plate of the present utility model.

Fig. 4 is the end view such as just grade of housing of the present utility model.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is further described.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.

As shown in Figure 1, the miniaturization times frequency module based on filter and structural member matching design of the present embodiment comprises upper cover plate 1, multilayer micro belt board 2 forms with housing 3.

As shown in accompanying drawing 2,3, described upper cover plate 1 comprises cover plate 10, first dividing plate 11, second partition 12.On first dividing plate 11 fluted 110, on second partition 12 fluted 120.First dividing plate 11 and second partition 12 all have the screwed hole perpendicular to cover plate 10, hold-down screw can pass housing 3, and multilayer micro belt board 2 and upper cover plate 1 are fixed together.The position that wherein multilayer micro belt board 2 contacts with the first dividing plate 11, second partition 12 is the gold-plated copper sheet of ground connection.

Described multilayer micro belt board 2 comprises the devices such as the micro-band dielectric-slab 20 of multilayer and filter, switch, amplifier.One of them filter is placed on the micro-band dielectric-slab 20 of multilayer below the groove 120 on second partition 12, and second filter is placed on the micro-band dielectric-slab 20 of multilayer below the groove 110 on the first dividing plate 11.Before switch is placed on varactor doubler, to realize higher modulation depth.

The power supply of the microwave device on described multilayer micro belt board 2 and control signal are transferred on the micro-band dielectric-slab 20 of multilayer by the feedthrough capacitor on housing 3 sidewall, and are transferred to microwave device by multilayer micro belt board 2 internal signal layers, half bore.

As shown in Figure 4, described housing 3, comprises shell structure part 30, fundamental frequency input interface 31, radio frequency output interface 32, feedthrough capacitor installing hole 33.Wherein fundamental frequency input interface 31 and radio frequency output interface 32 all adopt SMP connector mode.

These are only preferred embodiment of the present utility model, not in order to limit the utility model, all make within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.

Under this project innovation point is limited spatial volume restriction, serpentine cavity body structure and multilayer microstrip circuit cabling is adopted to design, three cavitys are linked together by aperture, and multilayer micro-band plate place placement filter carrys out filtering spurious signal below aperture, and utilize the higher cutoff frequency characteristic of small structure to overcome mutual crosstalk in three cavitys between signal, by adding the mode of switch before varactor doubler, achieve the frequency multiplication modular design of band modulation function.This project also with aperture immediately below micro belt board on do not place filter situation contrast, demonstrate the high performance nature of this module.For the design of follow-up this kind of micro-band module provides strong reference and reference.

Claims (1)

1., based on a miniaturization times frequency module for filter and structural member matching design, it is characterized in that, comprising:

Upper cover plate [1], multilayer micro belt board [2] and housing [3];

Described upper cover plate [1] comprises cover plate [10], the first dividing plate [11], second partition [12]; First dividing plate [11] upper fluted [110], second partition [12] upper fluted [120]; First dividing plate [11] and second partition [12] all have the screwed hole perpendicular to cover plate [10], hold-down screw is through housing [3], and multilayer micro belt board [2] and upper cover plate [1] are fixed together; The position that wherein multilayer micro belt board [2] contacts with the first dividing plate [11], second partition [12] is the gold-plated copper sheet of ground connection;

Described multilayer micro belt board [2] comprises the micro-band dielectric-slab [20] of multilayer, switch, amplifier, resistance, electric capacity, inductance, 2 filters; One of them filter is placed on the micro-band dielectric-slab [20] of multilayer of groove [120] below on second partition [12], second filter is placed on the micro-band dielectric-slab [20] of multilayer of groove [110] below on the first dividing plate [11], and switch, amplifier, resistance, electric capacity, inductance are placed on the micro-band dielectric-slab [20] of multilayer;

Described housing [3] comprises shell structure part [30], described shell structure part [30] has fundamental frequency input interface [31], radio frequency output interface [32], feedthrough capacitor installing hole [33].