CN204633716U

CN204633716U - C-band down conversion components

Info

Publication number: CN204633716U
Application number: CN201520428627.7U
Authority: CN
Inventors: 宋伟
Original assignee: CHENGDU SEEKCON MICROWAVE COMMUNICATION Co Ltd
Current assignee: CHENGDU SEEKCON MICROWAVE COMMUNICATION Co Ltd
Priority date: 2015-06-19
Filing date: 2015-06-19
Publication date: 2015-09-09
Anticipated expiration: 2025-06-19

Abstract

The utility model discloses a kind of C-band down conversion components, comprise amplitude limiter, frequency mixer, switch filter and coupler; Amplitude limiter is connected with the first amplifier, and the first amplifier is connected with the first numerical-control attenuator, and the first numerical-control attenuator is connected with the first filter; First filter is connected with frequency mixer with the first temperature compensation module by the first single-pole single-throw switch (SPST), frequency mixer is connected with switch filter with the second amplifier by the second numerical-control attenuator, switch filter is also connected with the second amplifier, second amplifier is connected with the second temperature compensation module, and the second temperature compensation module is connected with coupler 15 with the second filter by the second single-pole single-throw switch (SPST); This C-band down conversion components has low noise, high-gain, Larger Dynamic, high transmitting-receiving obturation, low spurious, the advantages such as operating temperature range is wide; Be applicable to, in all kinds of microwave systems such as radar, electronic countermeasures, satellite communication, to there is wide application prospect.

Description

C-band down conversion components

Technical field

The utility model relates to microwave communication technical field of electronic devices, is specifically related to a kind of C-band down conversion components.

Background technology

Along with the develop rapidly of telecommunications industry, the requirement of people to various wireless communication tool is also more and more higher, microwave technology and technique are obtaining development at full speed in recent years, result in microwave product gradually to miniaturization, this mainly revels in new microwave device and the development of microwave transmission line.In microwave system, down conversion components plays very important effect in a communications system as signal receiving module, the gain distribution of radio-frequency channel, the frequency range of preselection filter divide and intermediate frequency is selected to take into account Larger Dynamic, low noise, high inaccessible isolation, low spurious etc. simultaneously, its design difficulty place, so need a kind of C-band down conversion components badly with the technological difficulties solved.

Summary of the invention

The technical problems to be solved in the utility model is: be directed to the deficiencies in the prior art, a kind of C-band down conversion components is provided, this down conversion components has low noise, high-gain, Larger Dynamic, high transmitting-receiving obturation, low spurious, and the advantage that operating temperature range is wide, has wide application prospect simultaneously.

To achieve the above object of the invention, the technical scheme that the utility model adopts is: provide a kind of C-band down conversion components, and this C-band down conversion components comprises amplitude limiter, frequency mixer, switch filter and coupler; Amplitude limiter is connected with the first amplifier, and the first amplifier is connected with the first numerical-control attenuator, and the first numerical-control attenuator is connected with the first filter; First filter is connected with frequency mixer with the first temperature compensation module by the first single-pole single-throw switch (SPST), frequency mixer is connected with switch filter with the second amplifier by the second numerical-control attenuator, switch filter is also connected with the second amplifier, second amplifier is connected with the second temperature compensation module, and the second temperature compensation module is connected with coupler 15 with the second filter by the second single-pole single-throw switch (SPST).

In sum, this practical provided C-band down conversion components tool has the following advantages:

1, this C-band down conversion components have employed time-derived channel technology, and breaches the defects such as domestic existing frequency conversion assembly dynamic range is little, gain is low, spuious difference, and this frequency conversion assembly is had, and bandwidth is optional, high-gain, Larger Dynamic, numerical control precision high.

2, all parts of this C-band down conversion components and circuit all adopt advanced micro-assembling hybrid integration technology to carry out productions to assemble, substantially reduce circuit size, have that volume is little, stable performance, indicator consilience high, there is good input-output adapt ation simultaneously, be applicable to mass production, production cost reduces greatly, is applicable in all kinds of microwave systems such as radar, electronic countermeasures, satellite communication.

Accompanying drawing explanation

Fig. 1 is the electrical block diagram of this C-band down conversion components.

Fig. 2 is the result that this C-band down conversion components carries out testing.

Wherein, 1, amplitude limiter; 2, the first amplifier; 3, the first numerical-control attenuator; 4, the first filter; 5, the first single-pole single-throw switch (SPST); 6, the first temperature compensation module; 7, frequency mixer; 8, the second numerical-control attenuator; 9, the second amplifier; 10, switch filter; 11, the second amplifier; 12, the second temperature compensation module; 13, the second single-pole single-throw switch (SPST); 14, the second filter; 15, coupler.

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail:

According to an embodiment of the application, as shown in Figure 1, this C-band down conversion components comprises amplitude limiter 1, frequency mixer 7, switch filter 10 and coupler 15; Amplitude limiter 1 is connected with the first amplifier 2, and the first amplifier 2 is connected with the first numerical-control attenuator 3, and the first numerical-control attenuator 3 is connected with the first filter 4; First filter 4 is connected with frequency mixer 7 with the first temperature compensation module 6 by the first single-pole single-throw switch (SPST) 5, frequency mixer 7 is connected with switch filter 10 with the second amplifier 9 by the second numerical-control attenuator 8, switch filter 10 is also connected with the second amplifier 11, second amplifier 11 is connected with the second temperature compensation module 12, and the second temperature compensation module 12 is connected with described coupler 15 with the second filter 14 by the second single-pole single-throw switch (SPST) 13.

According to an embodiment of the application, the first single-pole single-throw switch (SPST) 5 of this C-band down conversion components and the second single-pole single-throw switch (SPST) 13 are matched single-pole single-throw switch (SPST).

According to an embodiment of the application, as shown in Figure 1, main operational principle: radio-frequency input signals RF enters amplification, filtering, numerical control attenuation, mixing link through amplitude limit chip, intermediate-freuqncy signal is changed under after local oscillation signal L0 mixing, intermediate-freuqncy signal selects bandwidth through switch filtering, exports intermediate-freuqncy signal IF1 and Medium link signal IF2 respectively by amplification filtering, coupling.Whole component gains is up to 70dB, assembly carries out stepping 2dB by TTL control signal to channel gain, the altogether adjustment of 60dB scope, and controllable switch filtering unit, make assembly can in 100MHz, 150MHz and 600MHz tri-kinds of different bandwidth situations time-sharing work.The all parts in described inside and circuit all adopt advanced micro-assembling hybrid integration technology to carry out production assembling, and all parts all adopt input, output-resistor to be the standardized module of 50 ohm.

According to an embodiment of the application, the amplitude limiter 1 of this C-band down conversion components is Chinese People's Anti-Japanese Military and Political College's power limiting tube core, ensures module energy trouble free service, does not burn components and parts; First amplifier 2 is low noise amplification module, ensures frequency conversion assembly low-noise factor; First numerical-control attenuator 3 and the second numerical-control attenuator 8 should be high accuracy, wide range numerical control attenuation module, ensure the work of frequency conversion assembly great dynamic range; First single-pole single-throw switch (SPST) 5 and the second single-pole single-throw switch (SPST) 13 should be matched single-pole single-throw switch (SPST), under receive path provides high isolation occlusion condition, ensure amplifier no-self excitation; Switch filter 10 is the wideband switch built by PIN tube core, and adopt microwave assembly technology, the first filter 4 and the second filter 14 adopt cavity body filter, increases assembly to spuious suppression.

This C-band down conversion components can meet conventional inverter assembly and will change to the function of intermediate frequency under microwave signal, and can meet high-gain, Larger Dynamic radio-frequency input signals, power output is controlled, low spurious frequency conversion demand simultaneously; The parts of this C-band down conversion components all can adopt advanced microwave assembly technology to carry out production assembling, and radio frequency input, output-resistor is the standardized module of 50 ohm.

As shown in Figure 2, be the signal source analyzer E5052B produced with Agilent company, spectrum analyzer E4447, vector network analyzer PNA-X, to the result that the utility model C-band down conversion components is tested.

The utility model is not limited to above-mentioned example, and in claims limited range of the present utility model, the various distortion that those skilled in the art can make without creative work or amendment are all by the protection of this patent.

Claims

1. a C-band down conversion components, is characterized in that: comprise amplitude limiter, frequency mixer, switch filter and coupler; Described amplitude limiter is connected with the first amplifier, and described first amplifier is connected with the first numerical-control attenuator, and described first numerical-control attenuator is connected with the first filter; Described first filter is connected with described frequency mixer with the first temperature compensation module by the first single-pole single-throw switch (SPST), described frequency mixer is connected with described switch filter with the second amplifier by the second numerical-control attenuator, described switch filter is also connected with the second amplifier, described second amplifier is connected with the second temperature compensation module, and described second temperature compensation module is connected with described coupler with the second filter by the second single-pole single-throw switch (SPST).

2. C-band down conversion components according to claim 1, is characterized in that: described first single-pole single-throw switch (SPST) and the second single-pole single-throw switch (SPST) are matched single-pole single-throw switch (SPST).