Portable vector network analyzer

Abstract

The utility model discloses a portable vector network analyzer which comprises a shell, an energy storage power supply, a display control panel, an external interface, a numerical control circuit board and a radio frequency circuit board. The energy storage power supply is used for providing a working power supply, the display control panel is used for displaying and controlling the portable vector network analyzer, the external interface is used for connecting peripheral equipment, and the radio frequency circuit board is used for converting a radio frequency signal input by the radio frequency input and output port into an intermediate frequency signal and then sending the intermediate frequency signal to the numerical control circuit board; and the numerical control circuit board is used for performing electrical parameter analysis on the intermediate frequency signal and displaying an electrical parameter analysis result through the display control panel. As the working power supply is provided by the energy storage power supply, the vector network analyzer can be ensured to continuously work for a long time without an external power supply, and a complete test function of a common vector network is provided.

Description

Technical Field

[0001] The present application relates to the technical field of communication test instruments and meters, and in particular to a portable vector network analyzer. Background Art

[0002] As a general S parameter test instrument, vector network analyzer is widely used in various scientific research institutions, laboratories and production lines for S parameter measurement, such as various antenna tests, cavity filter tests, dielectric filter tests, circulator tests, coupler tests, splitter combiner tests, etc. Vector network analyzer can use its own signal source to measure scattering parameters of RF microwave devices, cables, connectors, etc. The most basic function is to give the amplitude, phase and frequency characteristics of each scattering parameter in a frequency sweep mode.

[0003] Modern vector network analyzers combine spectrum analysis, signal generation, and signal separation technologies. They not only have the function of complex scattering parameter testing, but sometimes also have time domain analysis and spectrum analysis functions. They are often used in research and development testing and production manufacturing in basic industries and fields such as microwave devices, material science, and electronic communications.

[0004] Currently, network analyzers on the market are usually RF instruments used in laboratories. They are heavy and large in size, and are usually not easily moved over long distances, nor are they convenient for outdoor and field use. In modern communication projects, there are often scenarios where outdoor base stations or their antenna feeder systems need to be measured for fault location, or where RF cables, RF components, and RF equipment need to be measured anytime and anywhere, resulting in the use of traditional bulky laboratory instruments being limited in terms of moving distance in many usage scenarios. Summary of the invention

[0005] In a first aspect, an embodiment provides a portable vector network analyzer, including a housing, an energy storage power supply, a display control panel, an external interface, a numerical control circuit board, and a radio frequency circuit board;

[0006] The energy storage power supply is arranged in the housing and is used to provide a DC working power supply for the portable vector network analyzer;

[0007] The display control panel is arranged on the housing; the display control panel comprises a display area and a key setting area, the display area is used to display the working parameters of the portable vector network analyzer, and the key setting area is provided with function keys of the portable vector network analyzer;

[0008] The external interface is arranged on the housing and is used to connect with the peripheral device of the portable vector network analyzer;

[0009] The radio frequency interface comprises a first radio frequency input and output port and a second radio frequency input and output port, which are respectively arranged on the housing; the first radio frequency input and output port and the second radio frequency input and output port are used to receive or transmit radio frequency signals;

[0010] The RF circuit board is connected to the first RF input / output port and the second RF input / output port; the RF circuit board includes a first reference receiver, a first measurement receiver, a second reference receiver and a second measurement receiver, wherein the first reference receiver and the first measurement receiver are respectively connected to the first RF input / output port via a first coupler, and the second reference receiver and the second measurement receiver are respectively connected to the second RF input / output port via a second coupler; the RF circuit board is used to convert the RF signal input by the RF interface into an intermediate frequency signal and then send it to the CNC circuit board;

[0011] The numerical control circuit board is connected to the display control panel and is used for performing electrical parameter analysis on the intermediate frequency signal emitted by the radio frequency circuit board and displaying the electrical parameter analysis result through the display control panel.

[0012] In one embodiment, the housing is a cuboid with a length, width and height no greater than 320 mm, 220 mm and 80 mm, respectively.

[0013] In one embodiment, the energy storage power source includes an energy storage battery or an integrated battery.

[0014] In one embodiment, the external interface includes a network interface, a USB interface and / or a DC power interface.

[0015] In one embodiment, the RF circuit board also includes a transmitter and a switching circuit, the transmitter is connected to the first RF input / output port or the second RF input / output port respectively through the first coupler or the second coupler; the switching circuit is used for switching connection between the transmitter and the first coupler or the second coupler; the transmitter is used to send a RF signal with preset electrical parameters through the RF interface.

[0016] In one embodiment, the display control panel includes a touch screen.

[0017] In one embodiment, the first RF input / output port and / or the second RF input / output port is a BNC connector, an SMA connector, an N connector, a TNC connector or an F connector.

[0018] In one embodiment, the external interface and the radio frequency input and output port are arranged on the same side of the housing.

[0019] In one embodiment, an anti-collision pad is provided on each top corner of the housing.

[0020] In one embodiment, a retractable support frame is provided on one side of the housing.

[0021] According to the portable vector network analyzer of the above embodiment, it can be known that the product is miniaturized by being portable, and can meet the portability requirements of various measurement environments anytime and anywhere. The working power is provided by the energy storage power supply, which can ensure the continuous operation of the vector network analyzer for a long time without an external power supply, and provide the complete test functions that a normal vector network analyzer has. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the front and side surfaces of a housing of a portable vector network analyzer in an embodiment;

[0023] Figure 2 A schematic diagram of a circuit framework of a portable vector network analyzer in an embodiment;

[0024] Figure 3 A schematic diagram of a circuit framework of a radio frequency circuit board in an embodiment;

[0025] Figure 4 The figure is a schematic diagram of the bottom surface of the housing of a portable vector network analyzer in one embodiment. DETAILED DESCRIPTION

[0026] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0027] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0028] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0029] The vector network analyzers currently on the market are large in size and weight, and are not suitable for being moved at any time. They cannot work without an external power supply, and are therefore not suitable for use scenarios such as field testing, where the test location needs to be changed flexibly. In an embodiment of the present application, a portable vector network analyzer is disclosed, which is powered by an energy storage power supply, can work for a long time without an external power supply, and provides the complete test functions that a normal vector network has.

[0030] Embodiment 1:

[0031] Please refer to Figure 1 , which is a schematic diagram of the front and side surfaces of a housing of a portable vector network analyzer in an embodiment. The portable vector network analyzer includes a housing 1, and the housing 1 is a rectangular parallelepiped with a length, a width and a height not exceeding 320 mm, 220 mm and 80 mm, respectively.

[0032] Please refer to Figure 2 , is a schematic diagram of a circuit framework of a portable vector network analyzer in an embodiment, wherein the portable vector network analyzer further comprises an energy storage power supply 2, a display control panel 3, an external interface 4, a numerical control circuit board 7, a radio frequency interface 6 and a radio frequency circuit board 5. The energy storage power supply 2 is arranged in the housing 1, and is used to provide a DC working power supply for the portable vector network analyzer. The display control panel 3 is arranged on the housing 1, and the display control panel 3 comprises a display area and a key setting area, wherein the display area is used to display the working parameters of the portable vector network analyzer, and the function keys of the portable vector network analyzer are arranged on the key setting area. The external interface 4 is arranged on the housing 1, and is used to connect with the peripherals of the portable vector network analyzer. In one embodiment, the portable vector network analyzer further comprises a radio frequency interface 6, and the radio frequency interface 6 comprises a first radio frequency input and output port 61 and a second radio frequency input and output port 62, which are respectively arranged on the housing 1. The first radio frequency input and output port 61 and the second radio frequency input and output port 62 are used to receive or transmit radio frequency signals.

[0033] Please refer to Figure 3, is a schematic diagram of the circuit framework of a radio frequency circuit board in an embodiment. In one embodiment, the radio frequency circuit board 5 is connected to the first radio frequency input and output port 61 and the second radio frequency input and output port 62 provided on the housing. The radio frequency circuit board 5 includes a first reference receiver 51, a first measurement receiver 52, a second reference receiver 54 and a second measurement receiver 55. Among them, the first reference receiver 51 and the first measurement receiver 52 are respectively connected to the first radio frequency input and output port 61 through a first coupler 53, and the second reference receiver 54 and the second measurement receiver 55 are respectively connected to the second radio frequency input and output port 62 through a second coupler 56. The radio frequency circuit board 5 is used to convert the radio frequency signal input from the first radio frequency input and output port 61 or the second radio frequency input and output port 62 into an intermediate frequency signal and then send it to the numerical control circuit board 7. The numerical control circuit board 7 is connected to the display control panel 3, and is used to perform electrical parameter analysis on the intermediate frequency signal emitted by the radio frequency circuit board 5, and display the electrical parameter analysis results through the display control panel 3. In one embodiment, the energy storage power supply 2 includes an energy storage battery or an integrated battery. In one embodiment, the external interface 4 includes a network interface, a USB interface and / or a DC power interface. In one embodiment, the RF circuit board 5 further includes a transmitter 57 and a switching circuit 58, and the transmitter 57 is connected to the first RF input / output port 61 or the second RF input / output port 62 through the first coupler 53 or the second coupler 54, respectively. The switching circuit 58 is used for switching the connection between the transmitter 57 and the first coupler 53 or the second coupler 56. The transmitter 57 is used to send a RF signal with preset electrical parameters through the RF interface 6. In one embodiment, the display control panel 3 includes a touch screen. In one embodiment, the first RF input / output port 61 and / or the second RF input / output port 62 is a BNC type connector, an SMA connector, an N type connector, a TNC type connector or an F type connector.

[0034] In one embodiment, the RF circuit board 5 mainly outputs a basic signal through a transmitting PLL, which is then processed through a transmitting link so that the RF interface 6 can output a RF signal of set frequency and power. In one implementation, the first RF input and output port 61 and the second RF input and output port 62 share a transmitting source 59, and the RF signal is then transmitted by the transmitter 57, and the first RF input and output port 61 and the second RF input and output port 62 are switched by switching the switch circuit. When the vector network analyzer is working, generally only one RF input and output port is required to transmit power, and when multiple RF input and output ports transmit power, the RF signal is output in a time-sharing manner. While transmitting the RF signal, the measuring receiver and the reference receiver receive the coupled-back signal through a coupler, and the received signal is converted from the RF signal to an intermediate frequency signal through a receiver that shares the local oscillator source, and then the intermediate frequency signal obtained by the conversion is sent to the digital circuit board for further processing, and finally converted into data that can be displayed in real time.

[0035] Please refer to Figure 4 , is a schematic diagram of the bottom surface of the housing of a portable vector network analyzer in an embodiment. In one embodiment, the external interface and the radio frequency interface are arranged on the same side of the housing, and an anti-collision pad 11 is arranged on each top corner of the housing 1. In one embodiment, a retractable support frame 12 is arranged on one side of the housing 1.

[0036] The portable vector network analyzer disclosed in one embodiment of the present application has complete vector network analyzer test functions, and the measurement frequency range covers 30 kHz-26.5 GHz. It supports 2-port S parameter measurement, differential (balanced) measurement, time domain measurement, spectrum analysis, one-key measurement of filter insertion loss, bandwidth, Q value, etc., supports port impedance conversion and port expansion functions, supports limit testing and ripple testing functions, supports fixture simulation and de-embedding functions, supports linear frequency scanning, logarithmic frequency scanning, segmented frequency scanning, linear power scanning methods, supports SOLT, SOLR, TRL, Response, EnhancedResponse and other complete calibration methods, which can meet the application in various environments such as research and development and production.

[0037] The portable vector network analyzer disclosed in the embodiment of the present application includes a housing, an energy storage power supply, a display control panel, an external interface, a numerical control circuit board and a radio frequency circuit board. The energy storage power supply is used to provide working power, the display control panel is used to display and control the portable vector network analyzer, the external interface is used to connect peripherals, the radio frequency circuit board is used to convert the radio frequency signal input from the radio frequency input and output port into an intermediate frequency signal and then send it to the numerical control circuit board, and the numerical control circuit board is used to perform electrical parameter analysis on the intermediate frequency signal and display the results of the electrical parameter analysis through the display control panel. Since the working power is provided by the energy storage power supply, the vector network analyzer can be guaranteed to work continuously for a long time without an external power supply, and provide the complete test functions that a normal vector network has. The above specific examples are used to illustrate the present application, which is only used to help understand the present application and is not intended to limit the present application.

[0038] For technicians in the technical field to which the present application belongs, they can make some simple deductions, deformations or substitutions based on the ideas of the present application.

Claims

1. A portable vector network analyzer, characterized in that: It includes a housing, an energy storage power supply, a display control panel, an external interface, a CNC circuit board, a radio frequency interface and a radio frequency circuit board; The energy storage power supply is arranged in the housing and is used to provide a DC working power supply for the portable vector network analyzer; The display control panel is arranged on the housing; the display control panel comprises a display area and a key setting area, the display area is used to display the working parameters of the portable vector network analyzer, and the key setting area is provided with function keys of the portable vector network analyzer; The external interface is arranged on the housing and is used to connect with the peripheral device of the portable vector network analyzer; The radio frequency interface comprises a first radio frequency input and output port and a second radio frequency input and output port, which are respectively arranged on the housing; the first radio frequency input and output port and the second radio frequency input and output port are used to receive or transmit radio frequency signals; The RF circuit board is connected to the first RF input / output port and the second RF input / output port; the RF circuit board includes a first reference receiver, a first measurement receiver, a second reference receiver and a second measurement receiver, wherein the first reference receiver and the first measurement receiver are respectively connected to the first RF input / output port through a first coupler, and the second reference receiver and the second measurement receiver are respectively connected to the second RF input / output port through a second coupler; The radio frequency circuit board is used to convert the radio frequency signal input by the radio frequency interface into an intermediate frequency signal and then send it to the numerical control circuit board; The numerical control circuit board is connected to the display control panel and is used for performing electrical parameter analysis on the intermediate frequency signal emitted by the radio frequency circuit board and displaying the electrical parameter analysis result through the display control panel.

2. The portable vector network analyzer according to claim 1, characterized in that: The shell is a cuboid with a length, a width and a height not greater than 320 mm, 220 mm and 80 mm respectively.

3. The portable vector network analyzer according to claim 1, characterized in that: The energy storage power source includes an energy storage battery or an integrated battery.

4. The portable vector network analyzer according to claim 1, characterized in that: The external interface includes a network interface, a USB interface and / or a DC power interface.

5. The portable vector network analyzer according to claim 1, characterized in that: The radio frequency circuit board further includes a transmitter and a switching circuit, wherein the transmitter is connected to the first radio frequency input / output port or the second radio frequency input / output port respectively through the first coupler or the second coupler; The switching circuit is used for switching connection between the transmitter and the first coupler or the second coupler; The transmitter is used to send a radio frequency signal with preset electrical parameters through the radio frequency interface.

6. The portable vector network analyzer according to claim 1, characterized in that: The display control panel includes a touch screen.

7. The portable vector network analyzer according to claim 1, characterized in that: The first RF input / output port and / or the second RF input / output port is a BNC connector, an SMA connector, an N connector, a TNC connector or an F connector.

8. The portable vector network analyzer according to claim 1, characterized in that: The external interface and the radio frequency interface are arranged on the same side of the housing.

9. The portable vector network analyzer according to claim 1, characterized in that: An anti-collision pad is arranged on each top corner of the shell.

10. The portable vector network analyzer according to claim 1, characterized in that: A retractable support frame is arranged on one side of the shell.

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