CN206193065U

CN206193065U - Radiofrequency signal module MSP8T based on PCB

Info

Publication number: CN206193065U
Application number: CN201621095887.8U
Authority: CN
Inventors: 王浩; 邵文忠; 崔嘉; 李恒业
Original assignee: JIANGSU ACETEC SEMICO-NDUCTOR Co Ltd
Current assignee: JIANGSU ACETEC SEMICO-NDUCTOR Co Ltd
Priority date: 2016-09-29
Filing date: 2016-09-29
Publication date: 2017-05-24
Anticipated expiration: 2026-09-29

Abstract

The utility model discloses a radiofrequency signal module MSP8T based on PCB, including establishing the chip switch more than 2 kinds on the PCB board, a chip switch is one minute two chip switch, and another kind of chip switch is one fen four -core piece switch, one minute two chip switch received port input's signal after, input two one fen four -core piece switches respectively, 4 the same signals are all exported to every one fen four -core piece switch. The utility model discloses a module MSP8T has the module that 16 passageways can supply radiofrequency signal to select at least, and highly integrated test chip can make radiofrequency signal export at different routes to it is that the radiofrequency signal of input does not change the function that makes under the prerequisite of characteristic the signal can fall into the multichannel to reach, the use that effectively improves the resource, and when avoiding because of extraction radiofrequency signal, ineffective quick drawing. In reduce cost, the modular rate of utilization has been improved, also in order to reduce the space that test circuit took function circuit board, the reliability of reinforcing module.

Description

Radiofrequency signal module MSP8T based on PCB

Technical field

The utility model belongs to radiofrequency signal building block technique field, more particularly to a kind of radiofrequency signal module based on PCB MSP8T。

Background technology

Frequency microwave occupies critical positions in testing field, with continuing to develop for electronic technology, to electronic equipment requirement More and more higher, on the premise of its performance is ensured, it can also require that compact is succinct.Present electronic equipment is all towards electricity Road minimizes, and high reliability, the direction of low-power consumption is developed, and circuit becomes increasingly complex.So processed when receiving multiple for one The switch of various patterns is just taken, the switch taken in test industry now is mostly mechanical switch, for mechanical switch Speech, although multichannel can be divided, but the switch speed of mechanical switch and life-span are drawbacks.

In radio frequency testing field, with the increase of measured device pin and signal output quantity, required radiofrequency signal Source is consequently increased, although many test systems also receive multiple processing mode to increase signal source quantity using one now, Increasingly increased testing requirement is not caught up with still yet.

Utility model content

Utility model purpose：For the deficiencies in the prior art, the purpose of this utility model is to provide one kind and is based on The radiofrequency signal module MSP8T of PCB, is at least available for the module of radiofrequency signal selection with 16 passages, and Highgrade integration is surveyed Examination chip can be such that radiofrequency signal is exported in different paths, be made with reaching on the premise of the radiofrequency signal for being to be input into does not change characteristic Signal can be divided into the function of multichannel.

Technical scheme：In order to realize above-mentioned utility model purpose, the technical solution adopted in the utility model is as follows：

A kind of radiofrequency signal module MSP8T based on PCB, including two or more chip switch on pcb board is located at, it is a kind of Chip switch is one-to-two chip switch, and another chip switch is one point of four chip switch, described one-to-two chip switch After receiving the signal of port input, two one point of four chip switch are input into respectively, each one point of four chip switch exports 4 Identical signal.

Described one-to-two chip switch has two, respectively chip switch SD221, chip switch SD222；Described one Dividing four chip switch has four, respectively chip switch SD241, chip switch SD242, chip switch SD243 and chip switch SD244；Wherein, the output end of chip switch SD221 is connected with chip switch SD241, chip switch SD242 respectively；Chip is opened The output end for closing SD222 is connected with chip switch SD243 and chip switch SD244 respectively.

Described one-to-two chip switch is the HMC849 chips of Hittite companies.

One point of four described chip switch is the HMC344 chips of Hittite companies.

When using, using multiple block combiner connections, connected mode is previous module to described radiofrequency signal module MSP8T One point of four signal output port of chip switch be connected with the signal input port of the one-to-two chip switch of latter module.

Beneficial effect：Compared with prior art, module MSP8T of the present utility model, at least can with 16 passages For the module of radiofrequency signal selection, Highgrade integration test chip can be such that radiofrequency signal is exported in different paths, be to reach The radiofrequency signal of input enables signal be divided into the function of multichannel on the premise of not changing characteristic, effectively improve the use of resource, Avoid, because extracting during radiofrequency signal, not extracting fast and effectively.While reduces cost, modular use is improve Rate, takes the space of function circuit board, strengthens the reliability of module also for reduction test circuit.The frequency dynamic model of this module Enclosing to reach：DC ~ 6GHz, can meet the requirement of most of test signal；This module can be held in the case where high isolation is ensured It is very big by power, complete equipilibrium complementary relationship between the two.

Brief description of the drawings

Fig. 1 is the structural representation of radiofrequency signal module MSP8T.

Specific embodiment

The utility model is described further with reference to specific accompanying drawing.

As shown in figure 1, the radiofrequency signal module MSP8T based on PCB, including be located at chip switch SD221 on pcb board, Chip switch SD222, chip switch SD241, chip switch SD242, chip switch SD243 and chip switch SD244.

Chip switch SD221, chip switch SD222 are one-to-two chip switch, and this chip switch has high isolation, steady Qualitative high the characteristics of, the HMC849 chips of prioritizing selection Hittite companies.

Chip switch SD241, chip switch SD242, chip switch SD243 and chip switch SD244 are one point of four core Piece is switched, the characteristics of the type chip switch has high isolation, stability is high, the HMC344 cores of prioritizing selection Hittite companies Piece, not only can guarantee that quality but also can meet testing requirement.

This module is used as multiport transmitter module, signal input part and the receiver port COM1 of chip switch SD221 It is connected, signal output part and chip switch SD241, the chip switch SD242 of chip switch SD221 are respectively connected with, by signal point Cheng Erlu signal outputs；The signal input part of chip switch SD222 is connected with receiver port COM2, chip switch SD222 Signal output part be respectively connected with chip switch SD243, chip switch SD244, divide the signal into two tunnel signal outputs.

The signal output part of chip switch SD241 is equal with output port A11, output port A12, output port A13, A14 It is connected, divides the signal into four tunnel signal outputs.

The signal output part of chip switch SD242 is equal with output port B11, output port B12, output port B13, B14 It is connected, divides the signal into four tunnel signal outputs.

The signal output part of chip switch SD243 is equal with output port A21, output port A22, output port A23, A24 It is connected, divides the signal into four tunnel signal outputs.

The signal output part of chip switch SD244 is equal with output port B21, output port B22, output port B23, B24 It is connected, divides the signal into four tunnel signal outputs.

When radiofrequency signal enters from COM1 interfaces, signal is divided into two by SD221, but does not change the property of signal, Further it is divided into four by the signal that will be separated after SD241, SD242 again, similarly, the signal from the entrance of COM2 interfaces is also by this point Go out, two signals 16 signals of identical characteristics can be separated finally by this module, facilitate the collection and treatment of signal.

Signal is received by left side, signal path is distributed, by right side sending signal.On the premise of kernel is saved, this mould Block can require that multiple modules are used in combination according to test event, and such as A11 can reconnect the COM1 ports of next module, this Sample causes that the port of output signal becomes more, more facilitates if it need to extract signal.

Claims

1. a kind of radiofrequency signal module MSP8T based on PCB, it is characterised in that including two or more chip being located on pcb board A kind of switch, chip switch is one-to-two chip switch, and another chip switch is one point of four chip switch, described one-to-two After chip switch receives the signal of port input, two one point of four chip switch, each one point of four chip switch are input into respectively Export 4 identical signals.

2. the radiofrequency signal module MSP8T based on PCB according to claim 1, it is characterised in that described one-to-two core Piece switch has two, respectively chip switch SD221, chip switch SD222；One point of four described chip switch has four, point Wei not chip switch SD241, chip switch SD242, chip switch SD243 and chip switch SD244；Wherein, chip switch The output end of SD221 is connected with chip switch SD241, chip switch SD242 respectively；The output end difference of chip switch SD222 It is connected with chip switch SD243 and chip switch SD244.

3. the radiofrequency signal module MSP8T based on PCB according to claim 1, it is characterised in that described one-to-two core Piece switch is the HMC849 chips of Hittite companies.

4. the radiofrequency signal module MSP8T based on PCB according to claim 1, it is characterised in that one point of four described core Piece switch is the HMC344 chips of Hittite companies.

5. the radiofrequency signal module MSP8T based on PCB according to claim 1, it is characterised in that described when using Using multiple block combiner connections, connected mode is one point of four letter of chip switch of previous module to radiofrequency signal module MSP8T Number output port is connected with the signal input port of the one-to-two chip switch of latter module.