TWM580183U - Receiver blocking testing device - Google Patents

Abstract

A receiver blocking test device for detecting a test object, the test device comprising a An RF coupler is provided for inputting a working signal; an RF synthesizer is electrically connected to the first coupler, receives the working signal and inputs an interference signal, and the RF synthesizer mixes the working signal and the interference signal to form a hybrid a signal; an RF isolator is electrically connected to the RF synthesizer to receive the mixed signal; and a second RF coupler is electrically connected to the RF isolator and the DUT to transmit the mixed signal to the DUT. And receiving the test object to transmit a feedback signal corresponding to the mixed signal, the RF isolator isolating the feedback signal, and the second RF coupler outputs the feedback signal.

Description

Receiver blocking test device

The present invention relates to a test device, and more particularly to a receiver blocking test device.

According to the vigorous development of wireless communication technology, the development and application of various wireless communication products are promoted. In order to ensure that wireless communication products can provide good communication quality and meet the RF standards of countries and organizations around the world, manufacturers and developers will conduct blocking tests on various RF standards for wireless communication products.

However, during the test, the feedback signal generated by the wireless communication product after receiving the working signal to be tested will return to the RF circuit, thereby affecting the working signal to be tested to generate noise, resulting in subsequent tests on the wireless communication product. The test results are not accurate.

Therefore, solving the above problems is the direction that the current industry is striving to develop.

Therefore, in order to effectively solve the above problems, one of the purposes of the present invention is to provide a receiver blocking test device that prevents a feedback signal from affecting an operational signal.

Another object of the present invention is to provide a receiver blocking test apparatus that makes test results more accurate.

In order to achieve the above purpose, the present invention provides a receiver blocking test device for detecting a test object, the test device comprising: a first RF coupler for inputting a working signal; an RF synthesizer, The first coupler is connected to receive the working signal and input an interference signal, and the RF synthesizer mixes the working signal and the interference signal to form a mixed signal; an RF isolator is electrically connected to the RF synthesizer, Receiving the mixed signal; and a second RF coupler electrically connected to the RF isolator And the test object transmits the mixed signal to the object to be tested, and receives a feedback signal corresponding to the mixed signal of the object to be tested, the RF isolator isolates the feedback signal, and the second RF coupler The feedback signal is output.

With this design, the effect of preventing the feedback signal from affecting the working signal can be effectively achieved, and the test result is more accurate.

100‧‧‧Receiver blocking test device

101‧‧‧First RF Coupler

102‧‧‧RF synthesizer

103‧‧‧RF isolator

1031‧‧‧First RF Circulator

1032‧‧‧Second RF Circulator

104‧‧‧Second RF coupler

105‧‧‧RF attenuator

106‧‧‧RF separator

200‧‧‧Test object

300‧‧‧ data collection device

400‧‧‧Control device

500‧‧‧Monitor

The following figures are intended to make the present invention easier to understand, and the drawings are described in detail herein and form part of the specific embodiments. Through the specific embodiments herein and with reference to the corresponding drawings, the specific embodiments of the present invention are explained in detail, and the function principle of the creation is explained. 1 is a block diagram of a first embodiment of a creation receiver blocking test device; FIG. 2 is a block diagram of a second embodiment of the creation receiver blocking test device; A block diagram of a third embodiment of the machine blocking test apparatus; FIG. 4 is a block diagram of a third embodiment of the present invention for blocking the test apparatus.

The above object of the present invention, as well as its structural and functional features, will be described in accordance with the preferred embodiments of the drawings.

Please refer to FIG. 1 , which is a block diagram of a first embodiment of the present invention. The present invention provides a receiver blocking test apparatus 100 for detecting whether an object to be tested 200 can be detected. A working signal is correctly received, and a feedback signal of the object to be tested 200 and the working signal are output to a data acquisition device 300. In this embodiment, the working signal is represented as a 4G signal, and the object to be tested 200 is represented as a 4G signal receiver that receives the 4G signal, for example, a smart mobile device, but is not limited thereto. In other embodiments, the working signal can also be table Shown as a 3G signal, the object to be tested 200 can also be represented as a 3G signal receiver that receives the 3G signal, for example, another smart mobile device, and the working signal can also be represented as a wireless local area network signal. The object to be tested 200 can also be represented as a wireless local area network signal receiver for receiving the wireless local area network signal, for example, a wireless router, and the working signal can also be represented as a digital television signal, and the object to be tested 200 can also be A digital television signal receiver, which is represented as a digital television receiver, for example, is a digital television box. The working signal can also be represented as a satellite television signal. The object to be tested 200 can also be represented as a receiver for receiving the satellite television signal. A satellite television signal receiver, such as a satellite television box.

The receiver blocking test apparatus 100 includes a first RF coupler 101, a RF synthesizer 102, an RF isolator 103, and a second RF coupler 104. The first RF coupler 101 is electrically connected to the RF synthesizer 102, the data collecting device 300, and a base station. The RF synthesizer 102 is electrically connected to the first RF coupler 101, and the RF isolation. The radio frequency isolator 103 and the second radio frequency coupler 104 are respectively connected to the radio frequency isolator 102 and the second radio frequency coupler 104. The second radio frequency coupler 104 is electrically connected to the radio frequency isolator 103 and the object to be tested. 200 and the data collecting device 300.

The first RF coupler 101 is configured to input the working signal generated by the base station and transmit the signal to the RF synthesizer 102 and the data collecting device 300. In this embodiment, the base station is represented as a wireless communication tester, but is not limited thereto. In other embodiments, the base station can also be represented as other types of detection instruments. The type of base station is not restricted.

The RF synthesizer 102 receives the working signal and inputs an interference signal generated by the other base station, and the RF synthesizer 102 mixes the working signal and the interference signal to form a mixed signal, and transmits the mixed signal to the RF isolation. 103. In this embodiment, the other base station is represented as a digital television The signal generating device is not limited thereto. In other embodiments, the other base station can also be represented as other types of detecting instruments, and the present invention does not limit the type of the other base station.

The radio frequency isolator 103 is configured to receive the mixed signal. The radio frequency isolator 103 has a first radio frequency circulator 1031 and a second radio frequency circulator 1032. The first radio frequency circulator 1031 is electrically connected to the radio frequency. The synthesizer 102 and the second RF circulator 1032 are electrically connected to the second RF coupler 104 and the first RF circulator 1031 to transmit the mixed signal to the first Two RF couplers 104.

The second RF coupler 104 transmits the mixed signal to the object to be tested 200. After receiving the mixed signal, the object to be tested 200 generates a feedback signal corresponding to the mixed signal, and the second RF coupler 104 receives the signal. The feedback signal returned by the object to be tested 200, the RF isolator 103 isolating the feedback signal, preventing the feedback signal from returning to the RF synthesizer 102 or the first RF coupler 101 to affect the working signal, and the second The RF coupler 104 outputs the feedback signal to the data collection device 300.

The data collecting device 300 receives the working signal from the first RF coupler 101 and receives the feedback signal from the second RF coupler 104. The data collecting device 300 generates a working data according to the working signal and according to the feedback signal. Produce a counter-information. The data collection device 300 is electrically connected to a control device 400 and transmits the work data and the feedback data to the control device 400 for comparison and storage. In the embodiment, the control device 400 is represented as a computer. However, the control device 400 may also be represented as other types of computers or servers in other embodiments, and the present invention does not limit the type of the control device 400.

By designing the RF isolator 103 to isolate the feedback signal, the effect of preventing the feedback signal from affecting the working signal can be effectively achieved, and the test result can be more accurate.

Please refer to FIG. 2 , which is a block diagram of a second embodiment of the present invention. The partial structure and function of the present embodiment are the same as those of the foregoing first embodiment, and therefore will not be described herein again. The difference between the embodiment and the foregoing first embodiment is that the first RF coupler 101 and the RF synthesizer A radio frequency attenuator 105 is disposed between 102 to receive and adjust a signal strength (eg, power, decibel or amplitude, etc.) of the operational signal transmitted by the first RF coupler 101.

In this embodiment, the RF attenuator 105 is represented as a programmable RF attenuator, but is not limited thereto. In other embodiments, the RF attenuator 105 can also be represented as other types of RF attenuators. The creation does not limit the type of RF attenuator 105. The RF attenuator 105 is electrically connected to the control device 400, and the signal strength of the working signal can be adjusted by operating the control device 400.

In an alternative embodiment, the control device 400 can electrically connect the base station and the other base station simultaneously, thereby simultaneously controlling the radio frequency attenuator 105, the base station, and the other base station to adjust the working signal and The signal strength of the interfering signal.

Thereby, the function of performing different signal strength tests on the object to be tested 200 can be achieved.

Please refer to FIG. 3 and FIG. 4 , which are block diagrams of the third embodiment of the creation receiver blocking test device, and the reference to the first and second figures. The partial structure and function of the embodiment are respectively compared with the foregoing first, The second embodiment is the same, so it will not be described here. However, the difference between this embodiment and the foregoing first and second embodiments is that a radio frequency separation is provided between the data collecting device 300 and the first RF coupler 101. The device 106 receives the working signal, and the RF separator 106 is additionally electrically connected to a monitoring device 500, thereby simultaneously transmitting the working signal to the data collecting device 300 and the monitoring device 500.

In this embodiment, the monitoring device 500 is represented as a spectrum analyzer, but is not limited thereto. In other embodiments, the monitoring device 500 can also be represented as other types of spectrum analyzers. The type of device 500 is limited.

Thereby, the monitoring device 500 can monitor whether the working signal input from the first RF coupler 101 meets the input standard in the RF standard specification.

The present invention has been described in detail above, but the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited. That is, all changes and modifications made in accordance with the scope of this creation application shall remain covered by the patents of this creation.

Claims (7)

A receiver blocking test device for detecting a test object, the test device comprising: a first RF coupler for inputting a working signal; and an RF synthesizer electrically connected to the first RF coupler for receiving The working signal is supplied with an interference signal, and the RF synthesizer mixes the working signal and the interference signal to form a mixed signal; an RF isolator is electrically connected to the RF synthesizer to receive the mixed signal; and a second a radio frequency coupler electrically connecting the RF isolator and the object to be tested to transmit the mixed signal to the object to be tested, and receiving the feedback object to return a feedback signal corresponding to the mixed signal, the RF isolator is isolated The feedback signal and the second RF coupler outputs the feedback signal. The receiver blocking test device of claim 1, wherein the first and second RF couplers are respectively electrically connected to a data collecting device, and receive the working signal transmitted by the first RF coupler and the first The feedback signal outputted by the two RF couplers generates a working data and a feedback data. The data collecting device is electrically connected to a control device and transmits the working data and the feedback data to the control device for comparison and storage. The receiver blocking test device of claim 2, wherein a radio frequency attenuator is disposed between the first RF coupler and the RF synthesizer to receive and adjust the working signal transmitted by the first RF coupler. a signal strength. The receiver blocking test device of claim 3, wherein the RF attenuator is a programmable RF attenuator connected to a control device. The receiver blocking test device of claim 2 or 3, wherein a radio frequency separator is disposed between the data collecting device and the first radio frequency coupler to receive the working signal, and the radio frequency is The separator is electrically connected to a monitoring device to simultaneously transmit the working signal to the data collecting device and a monitoring device. The receiver blocking test device of claim 1, wherein the RF isolator has a first RF circulator and a second RF circulator, and the first RF circulator is electrically connected to the The RF synthesizer and the second RF circulator are electrically connected to the second RF coupler and the first RF circulator, respectively. The receiver blocking test device according to claim 1, wherein the object to be tested is a 3G signal receiver, a 4G signal receiver, a wireless local area network signal receiver, and a digital television signal receiver. And a satellite television signal receiver, wherein the working signal is a 3G signal, a 4G signal, a wireless local area network signal, a digital television signal, and a satellite television signal corresponding to the object to be tested.