2G, 3G, 4G integrated dual-carrier portable detection equipment

Abstract

The present invention relates to the technical field of communication detection equipment, and in particular to a 2G, 3G, 4G integrated dual-carrier portable detection equipment, wherein a 234G dual-carrier baseband board is connected to a radio frequency switching board via 4 radio frequency lines and 4 control signals, the radio frequency switching board is connected to a TDD broadband power amplifier via 2 radio frequency lines, the radio frequency switching board is connected to an FDD high frequency power amplifier via 2 radio frequency lines, the radio frequency switching board is connected to an FDD low frequency power amplifier via 2 radio frequency lines, and the TDD broadband power amplifier, the FDD high frequency power amplifier, and the FDD low frequency power amplifier are respectively connected to the 234G dual-carrier baseband board via data lines. Compared with the prior art, the 2G, 3G, 4G integrated dual-carrier portable detection equipment of the present invention solves the problems existing in the prior art, and provides a detection equipment that meets the domestic 2G / 3G / 4G communication standards and all their operating frequency bands at the same time, and has low power consumption, and is suitable for portable size and weight.

Description

[Technical field]

[0001] The present invention relates to the technical field of communication detection equipment, and in particular to 2G, 3G, 4G integrated dual-carrier portable detection equipment. [Background technology]

[0002] After mobile communications entered the LTE era, the communication standards currently operated by domestic operators include 2G (GSM), 3G (WCDMA) and 4G (LTE-FDD and LTE-TDD), and they operate on multiple frequency bands (Band 5, Band 8, Band 3, Band 1, Band 39, Band 34, Band 40 and Band 41).

[0003] If the mobile phone identification code detection device in the prior art is to realize all standards, it either needs to have a very large device structure or multiple single-standard devices are combined and used together, which is very inconvenient. [Summary of the invention]

[0004] In order to overcome the above problems, the present invention proposes a 2G, 3G, 4G integrated dual-carrier portable detection device that can effectively solve the above problems.

[0005] A technical solution provided by the present invention to solve the above technical problems is: to provide a 2G, 3G, 4G integrated dual-carrier portable detection device, including a 234G dual-carrier baseband board for dual-carrier data and RF signal processing, a TDD broadband power amplifier, an FDD high-frequency power amplifier, an FDD low-frequency power amplifier, and a RF switching board for connecting the dual-carrier signal to the corresponding power amplifier according to control requirements; the 234G dual-carrier baseband board is connected to the RF switching board through 4 RF lines and 4 control signals; the RF switching board is connected to the TDD broadband power amplifier through 2 RF lines; the RF switching board is connected to the FDD high-frequency power amplifier through 2 RF lines; the RF switching board is connected to the FDD low-frequency power amplifier through 2 RF lines; the TDD broadband power amplifier, the FDD high-frequency power amplifier, and the FDD low-frequency power amplifier are respectively connected to the 234G dual-carrier baseband board through data lines.

[0006] Preferably, the 2G, 3G, 4G integrated dual-carrier portable detection device includes an Ethernet port, a GPS antenna port, and a WIFI antenna port. The 234G dual-carrier baseband board is connected to the Ethernet port via a network cable; the 234G dual-carrier baseband board is connected to the GPS antenna port and the WIFI antenna port respectively via a radio frequency cable.

[0007] Preferably, the 2G, 3G, 4G integrated dual-carrier portable detection device includes a frequency scanning antenna port, and the RF switching board is connected to the frequency scanning antenna port via a RF line.

[0008] Preferably, the 2G, 3G, 4G integrated dual-carrier portable detection device includes a TDD antenna port, an FDD high-frequency antenna port, and an FDD low-frequency antenna port. The TDD broadband power amplifier is connected to the TDD antenna port via a radio frequency line, the FDD high-frequency power amplifier is connected to the FDD high-frequency antenna port via a radio frequency line, and the FDD low-frequency power amplifier is connected to the FDD low-frequency antenna port via a radio frequency line.

[0009] Preferably, the 2G, 3G, 4G integrated dual-carrier portable detection device includes a fan, a power input interface, and a battery pack. The 234G dual-carrier baseband board, RF switching board, TDD broadband power amplifier, FDD high-frequency power amplifier, FDD low-frequency power amplifier, fan, and power input interface are respectively connected to the battery pack through power cables.

[0010] Preferably, the 234G dual-carrier baseband board adopts an OCTBTS3500 baseband board.

[0011] Preferably, the radio frequency switching board adopts a radio frequency board of model IPC-RS47.

[0012] Preferably, the TDD broadband power amplifier adopts a linear power amplifier of model LTE1826-002-T12.

[0013] Preferably, the FDD high frequency power amplifier adopts a linear power amplifier of model LTE1821-002-F02.

[0014] Preferably, the FDD low-frequency power amplifier adopts a Cili 8696-2W linear power amplifier.

[0015] Compared with the prior art, the 2G, 3G, 4G integrated dual-carrier portable detection device of the present invention creatively uses multi-standard baseband processing boards, radio frequency switching technology, wideband power amplifier and other technologies to solve the problems existing in the prior art and provide a detection device that meets the domestic 2G / 3G / 4G communication standards and all their operating frequency bands, has low power consumption, and is suitable for portability in size and weight.

Brief Description of the Drawings

[0016] Figure 1 It is a structural explosion diagram of the 2G, 3G, 4G integrated dual-carrier portable detection device of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal circuit structure of the 2G, 3G, 4G integrated dual-carrier portable detection device of the present invention;

[0018] Figure 3 A schematic diagram of the switching and control logic of the radio frequency switching board of the 2G, 3G, 4G integrated dual-carrier portable detection device of the present invention;

[0019] Figure 4 This is a working flow chart of the 2G, 3G, 4G integrated dual-carrier portable detection device of the present invention. [Specific implementation method]

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] It should be noted that in the embodiments of the present invention, all directional indications (such as up, down, left, right, front, back, etc.) are limited to relative positions on the specified view, rather than absolute positions.

[0022] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0023] See also Figure 1 and Figure 2 The 2G, 3G, and 4G integrated dual-carrier portable detection device of the present invention includes a 234G dual-carrier baseband board 101, a radio frequency switching board 102, a TDD broadband power amplifier 103, an FDD high-frequency power amplifier 104, an FDD low-frequency power amplifier 105, a battery pack 106, a fan 107, a power input connector 108, a switch button 109, an Ethernet port 110, an FDD high-frequency antenna port 111, a scanning (SCAN) antenna port 112, a TDD antenna port 113, a GPS antenna port 114, an FDD low-frequency antenna port 115, a WIFI antenna port 116, a bottom plate 117, an intermediate support plate 118, and an upper cover 119.

[0024] The 234G dual-carrier baseband board 101 , the RF switching board 102 , and the battery pack 106 are all installed on the middle support plate 118 .

[0025] The TDD wideband power amplifier 103 , the FDD high-frequency power amplifier 104 , and the FDD low-frequency power amplifier 105 are all mounted on the bottom plate 117 .

[0026] The fan 107 is mounted on a left side housing that is integral with the bottom plate 117 .

[0027] The power input connector 108 , the switch button 109 , and the Ethernet port 110 are all mounted on a rear side housing that is integrated with the bottom plate 117 .

[0028] The FDD high frequency antenna port 111 , the scanning frequency (SCAN) antenna port 112 , the TDD antenna port 113 , the GPS antenna port 114 , the FDD low frequency antenna port 115 , and the WIFI antenna port 116 are sequentially mounted on a front housing that is integrated with a bottom plate 117 .

[0029] The 234G dual-carrier baseband board 101 is connected to the RF switch board 102 via 4 RF lines, and 4 control signals are connected to the RF switch board 102. The 234G dual-carrier baseband board 101 is connected to the Ethernet port 110 via a network cable; the 234G dual-carrier baseband board 101 is connected to the GPS antenna port 114 via a RF line; the 234G dual-carrier baseband board 101 is connected to the WIFI antenna port 116 via a RF line.

[0030] The RF switching board 102 is connected to the TDD broadband power amplifier 103 through two RF lines, to the FDD high frequency power amplifier 104 through two RF lines, and to the FDD low frequency power amplifier 105 through two RF lines. The RF switching board 102 is connected to the SCAN antenna port 112 through RF lines.

[0031] The TDD broadband power amplifier 103 is connected to the TDD antenna port 113 via a radio frequency line; the TDD broadband power amplifier 103 is connected to the 234G dual-carrier baseband board 101 via a data line, and the received signal is used to control the Tx / Rx channel switching.

[0032] The FDD high frequency power amplifier 104 is connected to the FDD high frequency antenna port 111 via a radio frequency line; the FDD high frequency power amplifier 104 is connected to the 234G dual carrier baseband board 101 via a data line, and the received signal is used to control the selection between bands in the high frequency power amplifier.

[0033] The FDD low-frequency power amplifier 105 is connected to the FDD low-frequency antenna port 115 via a radio frequency line; the FDD low-frequency power amplifier 105 is connected to the 234G dual-carrier baseband board 101 via a data line, and the received signal is used to control the selection between bands in the low-frequency power amplifier.

[0034] The 234G dual-carrier baseband board 101, the RF switching board 102, the TDD broadband amplifier 103, the FDD high-frequency amplifier 104, the FDD low-frequency amplifier 105, the fan 107, and the power input interface 108 are respectively connected to the battery pack 106 through power lines. The battery pack 106 is first connected to the switch button 109 through a power line on the output side, and then outputs power to each part, all of which are powered by 12V DC.

[0035] The bottom plate 117 , the middle supporting plate 118 , and the upper cover 119 are all made of metal materials.

[0036] The 234G dual-carrier baseband board 101 adopts the OCTBTS3500 baseband board for dual-carrier data and RF signal processing; the OCTBTS3500 baseband board supports dual-carrier signal processing, including two DSP baseband processing units, providing baseband data processing functions for two carriers at the same time, generating dual-carrier signals; the dual carriers can be any combination of 2G (GSM), 3G (WCDMA), 4G (LTE-TDD and LTE-FDD). The OCTBTS3500 baseband board also provides onboard GPS, onboard WIFI, 1000Mbps Ethernet port, multi-channel control IO output and other functions. The 234G dual-carrier baseband board 101 has 4 Tx, Rx signals, and 4 IO control signal RF switching boards 102; there are also 3 IO control signals connected to the TDD broadband power amplifier 103, the FDD high-frequency power amplifier 104 and the FDD low-frequency power amplifier 105 respectively; the 234G dual-carrier baseband board 101 also has 1 signal connected to the GPS antenna port 114, 1 signal connected to the WIFI antenna port 116, and 1 Ethernet port 110.

[0037] The RF switching board 102 adopts a dedicated RF board of model IPC-RS47, which is used for signal exchange and combination between the RF interface of the 234G dual-carrier baseband board 101 and the TDD broadband power amplifier 103, the FDD high-frequency power amplifier 104, the FDD low-frequency power amplifier 105 and the scanning (SCAN) antenna port 112, and is used to connect the dual-carrier signal to the corresponding power amplifier according to the control requirements. Each carrier can output the amplified signal at any domestic operating frequency of 2G, 3G, and 4G; the IPC-RS47 dedicated RF board realizes the 4-input and 7-output switching function of the RF signal. Under the control of 4 IO signals, the RF switching board 102 branches, switches and multiplexes 4 Tx and Rx input signals into 7 output signals. Among the 7 output signals, 2 are FDD high-frequency Tx and Rx signals, which are connected to the FDD high-frequency power amplifier 104; 2 are FDD low-frequency Tx and Rx signals, which are connected to the FDD low-frequency power amplifier 105; 2 are TDD wide-band Tx and Rx signals, which are connected to the TDD wide-band power amplifier 103; and 1 is a SCAN signal, which is connected to the scanning frequency (SCAN) antenna port 112.

[0038] The TDD broadband power amplifier 103 adopts a linear power amplifier of model LTE1826-002-T12, which is used for filtering and amplifying 4G (TDD) transmission and reception signals, and for amplifying, filtering and combining the transmission Tx signals and reception Rx signals of each TDD frequency band; the LTE1826-002-T12 linear power amplifier supports broadband signals of 1880MHz-2700MHz, and has built-in multi-channel filters of three frequency bands (1880M-1920MHz, 2010M-2025MHz and 2300M-2690MHz), including 1880-1920MHz (Band39), 2010-2025MHz (Band34), 2300-2400MHz (Band40), 2515-2675MHz (Band38 / 41), etc. The LTE1826-002-T12 linear power amplifier supports a maximum output power of 2W. The TDD broadband power amplifier 103 automatically filters the Tx and Rx signals from the RF switching board 102 through a built-in multi-path filter, and passes through Band39, Band34, Band40, or Band38 / 41 to enter the ANT3 antenna port, which is the TDD antenna port 113. The Tx and Rx control switching signals of the TDD broadband power amplifier 103 are one of the control IOs provided by the 234G dual-carrier baseband board 101.

[0039] The FDD high-frequency power amplifier 104 adopts a linear power amplifier of model LTE1821-002-F02, which is used for filtering and amplifying 2G, 3G, and 4G transmission and reception signals, and for amplifying, filtering, and combining the transmission Tx signal and reception Rx signal of the FDD high-frequency band; the LTE1821-002-F02 linear power amplifier supports downlink 1805-2170MHz broadband signals, and has two built-in duplexers, including 1805-1880MHz (Band3) and 2110-2170MHz (Band1). The LTE1821-002-F02 linear power amplifier supports a maximum output power of 2W. Under the control of one IO signal, the FDD high-frequency power amplifier 104 transmits the Tx and Rx signals in the direction of the RF switching board 102 through the built-in duplexer, and selects one of the Band1 or Band3 channels to send to the ANT1 antenna port, and the ANT1 antenna port is the FDD high-frequency antenna port 111.

[0040] The FDD low-frequency power amplifier 105 adopts a Cili 8696-2W linear power amplifier, which is used for filtering and amplifying 2G, 3G, and 4G transmission and reception signals, and for amplifying, filtering, and combining the transmission Tx signal and reception Rx signal of the FDD high-frequency band; the Cili8696-2W linear power amplifier supports downlink 869-960MHz broadband signals, and has two built-in duplexers, including 869-880MHz (Band5) and 935-960MHz (Band8). The Cili 8696-2W linear power amplifier supports a maximum output power of 2W. Under the control of one IO signal, the FDD low-frequency power amplifier 105 transmits the Tx and Rx signals in the direction of the RF switching board 102 through the built-in duplexer, and selects one of the Band5 or Band8 channels to send to the ANT2 antenna port, and the ANT2 antenna port is the FDD low-frequency antenna port 115.

[0041] See also Figure 3 , the dual-carrier signals input from the 234G dual-carrier baseband board 101 are TX1, TX2, RX1 and RX2, which are divided into 6 TX signal paths and 8 RX signal paths through four RF selection switches (SW01 / 02 / 03 / 04), of which the three branches of the TX1 RF selection switch are the transmit FDD high frequency (T1-FH), transmit FDD low frequency (T1-FL), and transmit TDD path (T1-TD), and the four branches of the RX1 RF selection switch are the receive FDD high frequency (R1-FH), receive FDD low frequency (R1-FL), receive TDD channel (R1-TD), and receive SN channel (R1-SN). The branching method of TX2 and RX2 is the same as that of TX1 and RX1. The control signals of the RF selection switches are respectively that carrier 1 (TX1, RX1) is controlled by IO-1 and IO-3, and carrier 2 (TX2, RX2) is controlled by IO-2 and IO-4.

[0042] The 14 signal channels after the above branching are combined into 7 output signals after passing through 7 two-in-one combiners (CO-1 / 2 / 3 / 4 / 5 / 6 / 7), namely, the transmitting channel FDD high frequency (TX-FDD-HF), the transmitting channel FDD low frequency (TX-FDD-LF), and the transmitting channel TDD (TX-TDD), the receiving channel FDD high frequency (RX-FDD-HF), the receiving channel FDD low frequency (RX-FDD-LF), the receiving channel TDD (RX-TDD), and the receiving channel (RX-Sniffer).

[0043] The above-mentioned 7-way output signal, the transmitting channel FDD high frequency (TX-FDD-HF) and the receiving channel FDD high frequency (RX-FDD-HF) are connected to the FDD high frequency power amplifier 104; the transmitting channel FDD low frequency (TX-FDD-LF) and the receiving channel FDD low frequency (RX-FDD-LF) are connected to the FDD low frequency power amplifier 105; the transmitting channel TDD (TX-TDD) and the receiving channel TDD (RX-TDD) are connected to the TDD broadband power amplifier 103; the receiving channel (RX-Sniffer) is connected to the scanning (SCAN) antenna port 112.

[0044] The 234G dual-carrier baseband board 101 has a high-performance ARM processor, two DSP baseband processors and two RF transceivers. The ARM processor has a software control center module, a network management interface module, and four service modules. The four service modules are an LTE protocol stack module, a WCDMA protocol stack module, a GMS protocol stack module, and a frequency scanning module.

[0045] The control center module is used to create the main thread of the software and control all other modules and their threads.

[0046] The network management interface module is used to create a network management thread, provide a management interface externally, and exchange data with the business thread internally.

[0047] The LTE protocol stack module can create LTE-FDD thread and LTE-TDD thread, which can exchange data with LTE-PHY in DSP1 or DSP2 respectively to process LTE services. In the LTE dual-carrier combination, two LTE threads can be created at the same time to exchange data with LTE-PHY in DSP1 and DSP2 respectively.

[0048] The WCDMA protocol stack module is used to create WCDMA threads, which can exchange data with WCDMA-PHY in DSP1 and DSP2 respectively to process WCDMA services. In the case of WCDMA dual-carrier combination, two WCDMA threads can be created at the same time to exchange data with WCDMA-PHY in DSP1 and DSP2 respectively.

[0049] The GMS protocol stack module is used to create GMS threads, which can exchange data with the GSM-PHY in DSP1 and DSP2 respectively to process GSM services. In the GSM dual-carrier combination, two GSM threads can be created at the same time to exchange data with the GSM-PHY in DSP1 and DSP2 respectively.

[0050] The frequency scanning module is used to create a frequency scanning thread and exchange data with each PHY in DSP1 and DSP2 in sequence to realize the frequency scanning function of LTE, WCDMA and GSM cells in the environment.

[0051] In DSP1 and DSP2, LTE-PHY, WCDMA-PHY and GSM-PHY can alternate with each other in a cycle.

[0052] See also Figure 4 The 2G, 3G, 4G integrated dual-carrier portable detection device of the present invention can realize many functions, and its workflow is introduced by a mobile phone search service.

[0053] In some confidential and secure areas, it is necessary to quickly check whether there is a working mobile phone and find it. This mobile phone is called a suspect mobile phone, and it must be resident in a certain operator frequency of 4G, 3G or 2G.

[0054] The device supports the scanning function of operator frequencies and cells in the target environment. The possible frequencies or bands of all operators in the specified countries and regions have been preset in the device. In the scanning mode, the scanning thread coordinates with the dual DSP to start LTE scanning, WCDMA scanning and GSM scanning in sequence. For example, in China, LTE scans Band1, Band3, Band5, Band8, Band34, Band39, Band40 and Band41 in sequence; WCDMA scans Band1 and Band8 in sequence, and GSM scans Band3 and Band8 in sequence. After scanning the cell signal, its MIB and main SIB will be parsed to obtain key information such as cell signal strength (RSRP), operator code (PLMN), frequency (ARFCN), physical cell ID (PCI) or primary scrambling code (PSC), as well as the same-frequency and different-frequency cell information of each cell.

[0055] The self-configuration algorithm will extract the above key information, filter and sort it according to a certain algorithm, and obtain a list of working parameter combinations. The most important parameters are the working frequency and working mode.

[0056] Next, when entering the working mode, the device will start the first set of working standards and frequencies. In China, it usually starts with LTE. If the suspected mobile phone is currently residing on a certain frequency of LTE, when the device also runs to this frequency, the suspected mobile phone will quickly switch from the operator's cell to the same frequency cell of the device. During the signaling interaction process, the International Mobile Subscriber Identity (IMSI) of the suspected mobile phone can be obtained. This number is unique in the world and is stored in the mobile phone SIM card. If the suspected mobile phone is not found in the first set of working frequencies, it will switch to the second set of working standards and frequencies after a certain period of time (generally from a dozen seconds to a few minutes).

[0057] If a suspected mobile phone is found in a certain working frequency point, the carrier will remain unchanged, and a measurement report for the mobile phone will be initiated at the same time, and the location search function for the mobile phone will be completed alone or in conjunction with other tools.

[0058] The dual-carrier working mode can be any combination of the following:

[0059] LTE-FDD1 and LTE-FDD2

[0060] LTE-TDD1 and LTE-TDD2

[0061] WCDMA1 and WCDMA2

[0062] GSM1 and GSM2

[0063] LTE-FDD1 and LTE-TDD1

[0064] LTE-FDD1 and WCDMA1

[0065] LTE-FDD1 and GSM1

[0066] LTE-TDD1 and WCDMA1

[0067] LTE-TDD1 and GSM1

[0068] WCDMA1 and GSM1

[0069] The operating frequency of the dual carrier can be any frequency in Band1\3\5\8\34\39\40\41.

[0070] Compared with the prior art, the 2G, 3G, 4G integrated dual-carrier portable detection device of the present invention has the following beneficial effects:

[0071] 1. The baseband board used in the present invention supports dual carriers, each carrier can support any of the 2G (GSM) / 3G (WCDMA) / 4G (LTE-TDD and LTE-FDD) standards, the two carriers can be any combination of these standards, and also supports real-time switching between standards, which is very practical and convenient in the detection industry.

[0072] 2. The present invention adopts broadband power amplifier and built-in duplexer / filter technology to support all 8 domestic 234G operating frequency bands; the traditional 8 power amplifiers and several external multi-channel duplexers / filters are combined into 3 power amplifier units, which greatly reduces the size, weight, power consumption and complexity of the equipment and realizes the portability of the equipment.

[0073] 3. The present invention adopts an original radio frequency switching technology to realize the arbitrary connection between the baseband signal of the dual carrier and multiple frequency bands of multiple power amplifiers, which satisfactorily solves the limitations of signal amplification in traditional equipment and makes the device extremely practical.

[0074] 4. The device of the present invention supports an independent frequency scanning function, realizes the scanning of 2G / 3G / 4G environmental signals on various frequency bands and their decoding functions, and can be used as an input source for the device's self-configuration work, and can also be used as an independent frequency scanning decoder.

[0075] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any modifications, equivalent substitutions and improvements made within the concept of the present invention should be included in the patent protection scope of the present invention.

Claims

1. 2G, 3G, 4G integrated dual-carrier portable detection equipment, characterized in that: It includes a 234G dual-carrier baseband board for dual-carrier data and RF signal processing, a TDD broadband power amplifier, an FDD high-frequency power amplifier, an FDD low-frequency power amplifier, and a RF switching board for connecting the dual-carrier signal to the corresponding power amplifier according to control requirements; The 234G dual-carrier baseband board is connected to the RF switching board via 4 RF lines and 4 control signals; The radio frequency switching board is connected to the TDD broadband power amplifier via two radio frequency lines; The radio frequency switching board is connected to the FDD high frequency power amplifier via two radio frequency lines; The radio frequency switching board is connected to the FDD low frequency power amplifier via two radio frequency lines; The TDD wideband power amplifier, the FDD high-frequency power amplifier, and the FDD low-frequency power amplifier are respectively connected to the 234G dual-carrier baseband board via data lines; The 2G, 3G, 4G integrated dual-carrier portable detection device includes an Ethernet port, a GPS antenna port, and a WIFI antenna port. The 234G dual-carrier baseband board is connected to the Ethernet port via a network cable; the 234G dual-carrier baseband board is connected to the GPS antenna port and the WIFI antenna port via a radio frequency line respectively; The 2G, 3G, 4G integrated dual-carrier portable detection device includes a TDD antenna port and a battery pack. The TDD broadband power amplifier is connected to the TDD antenna port through a radio frequency line. The 234G dual-carrier baseband board, radio frequency switching board, TDD broadband power amplifier, FDD high-frequency power amplifier, and FDD low-frequency power amplifier are respectively connected to the battery pack through power lines.

2. The 2G, 3G, 4G integrated dual-carrier portable detection device according to claim 1, characterized in that: It includes a frequency sweeping antenna port, and the radio frequency switching board is connected to the frequency sweeping antenna port through a radio frequency line.

3. The 2G, 3G, 4G integrated dual-carrier portable detection device according to claim 1, characterized in that: It includes an FDD high-frequency antenna port and an FDD low-frequency antenna port. The FDD high-frequency power amplifier is connected to the FDD high-frequency antenna port via a radio frequency line, and the FDD low-frequency power amplifier is connected to the FDD low-frequency antenna port via a radio frequency line.

4. The 2G, 3G, 4G integrated dual-carrier portable detection device according to claim 1, characterized in that: It includes a fan and a power input interface, and the fan and the power input interface are connected to the battery pack through power lines respectively.

5. The 2G, 3G, 4G integrated dual-carrier portable detection device as claimed in claim 1, characterized in that: The 234G dual-carrier baseband board adopts the OCTBTS3500 baseband board.

6. The 2G, 3G, 4G integrated dual-carrier portable detection device according to claim 1, characterized in that: The radio frequency switching board adopts the radio frequency board of IPC-RS47 model.

7. The 2G, 3G, 4G integrated dual-carrier portable detection device according to claim 1, characterized in that: The TDD broadband power amplifier adopts a linear power amplifier of model LTE1826-002-T12.

8. The 2G, 3G, 4G integrated dual-carrier portable detection device according to claim 1, characterized in that: The FDD high frequency power amplifier adopts a linear power amplifier of model LTE1821-002-F02.

9. The 2G, 3G, 4G integrated dual-carrier portable detection device according to claim 1, characterized in that: The FDD low-frequency power amplifier adopts a Cili 8696-2W linear power amplifier.

Images