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Integrated passive intermodulation analyzer

A passive intermodulation and analyzer technology, which is applied in the field of test and analysis of passive intermodulation indicators, can solve the problems of troublesome installation and maintenance of mobile base stations, inconvenient movement and high price, and achieves ideal effects, good design performance, and ease of use. carry effect

Inactive Publication Date: 2009-07-08
HANGZHOU JOINTCOM COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the industry generally uses independent three-machine test equipment produced by SUMMITEK in the United States. Such a test system is not only very expensive, and some small and medium-sized enterprises cannot afford it, but also very bulky and inconvenient to move, especially for mobile base station installations. Maintaining such a job brings a lot of trouble

Method used

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  • Integrated passive intermodulation analyzer
  • Integrated passive intermodulation analyzer

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: as figure 1 As shown, the integrated passive intermodulation analyzer includes a control computer 1, an active module 2, a passive module 3, a digital receiver 4, a display 5, and a power supply. The power supply is externally connected to 220V AC, and the internal circuit is converted and transmitted to different voltages required by each functional module. The control computer 1 is connected to the digital receiver 4 and the display 5, the active module 2 is connected to the control computer 1, the passive module 3 is connected to the active module 2, the digital receiver 4 is connected to the passive module 3, and the passive module 3 has two silver-plated The cable head is connected to the product under test through a low intermodulation cable.

[0027] Such as figure 2 As shown, the control computer 1 includes a mainboard 11 and an operating system. There is a CPU and a RAM on the mainboard 11. The mainboard 11 of the control computer 1 is connecte...

Embodiment 2

[0031] Embodiment 2: under the situation that guarantees that the general structure of embodiment 1 remains unchanged, slightly change, just no longer say more about the same part embodiment 2, in figure 2 The combiner 31 and the duplexer 32 in the passive module 3 are made into a simpler integrated device 7, and the two power detection circuits 24 of the active module are respectively connected to the TX1 and TX2 interfaces of the integrated device 7, The RX interface of the integrated device 7 is connected to the bidirectional switch 43 of the digital receiver.

[0032] When using: Install the device under test, prepare AC 220V power supply, which requires 220V two-phase three-wire system, ensure good grounding, power supply capacity greater than 1000W, connect the power supply, connect the mouse and keyboard, start the instrument, and warm up for at least 15 minutes.

[0033] The user sets the test conditions (frequency, power, test mode, display mode, etc.) through the hu...

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Abstract

The present invention discloses an integrated passive intermodulation analyzer which comprises a radio frequency unit, a computer unit and a power source unit. The invention is characterized in that the radio frequency unit, the computer unit and the power source unit are integrated in a chassis. The radio frequency unit further comprises an active module (2), a passive module (3). The computer unit further comprises a control computer (1), a digital receiver (4) and a display (5). The control computer is connected with the digital receiver (4) and a display (5). The active module (2) is connected with the control computer (1). The passive module (3) is connected with the active module (2). The digital receiver (4) is connected with the passive module (3) which is connected with the product to be tested through low-intermodulation cable. The invention has the beneficial effect that the passive intermodulation analyzer with the advantages of small volume, light weight, low cost and multiple functions is provided.

Description

technical field [0001] The invention relates to a test and analysis technology of passive intermodulation indicators in a communication system, and mainly relates to an integrated passive intermodulation analyzer. Background technique [0002] With the rapid development of mobile communication all over the world, users' requirements have also increased from being able to make calls to requiring better network call quality and other services. Since multi-system coverage is accomplished with passive devices, the passive intermodulation (Passive Inter Modulation, PIM) characteristic of passive devices has increasingly become the focus of attention. [0003] Passive intermodulation is caused by the nonlinear characteristics of various passive components in the transmitting system. In high-power, multi-channel systems, the nonlinearity of these passive components produces higher harmonics relative to the operating frequency, which mix with the operating frequency to create a new...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q1/20
Inventor 邹新民封建华陈卓春朴献国
Owner HANGZHOU JOINTCOM COMM TECH
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