The invention discloses a multifunctional handheld passive intermodulation analyzer which comprises the components of two signal source generating circuits, a 3db bridge, a duplex combiner, a changeover switch, a first receiver, a second receiver and a third receiver Two passive intermodulation excitation signals which are generated by the signal source generating circuit are amplified and input to the 3db bridge for being combined After combination of the passive intermodulation excitation signals, an obtained signal is output to the duplex combiner for being processed The first receiver is used for analyzing the intermodulation signal of the RX receiving end of the duplex combiner The second receiver is used for analyzing the second-order intermodulation/secondary harmonic of the duplex combiner The third receiver is connected with the coupling port of the duplex combiner or the N port of the analyzer through the changeover switch, and is used for analyzing isolation or frequency spectrum The multifunctional handheld passive intermodulation analyzer has advantages of realizing detection for multiple functions of the passive intermodulation analyzer, realizing high integration level of an instrument, reducing size and weight of the instrument, and realizing convenient carrying

Multifunctional handheld passive intermodulation analyzer

A test device and a test method for passive intermodulation (PIM) of a modulated signal include a test device for PIM of a modulated signal (referred to as the device) and a test method for PIM of a modulated signal (referred to as the method). The device comprises a control module, a signal generating module, a data transmitting-receiving module and a processing module. A mode one of the method is as follows: firstly, a test signal parameter and a mode one are configured; secondly, test signals of different frequencies are generated; thirdly, transmission PIM testing or reflection PIM testing is selected; and fourthly, a transmission PIM signal or a reflection PIM signal is tested. A mode two is as follows: firstly, a test signal parameter and a mode two are configured; secondly, test signals of different frequencies are generated, and a useful signal is transmitted; thirdly, the useful signal and a PIM interference signal are received, down conversion and low-pass filtering processing are carried out, the test signal frequency and bandwidth are set, and a to-be-tested PIM order is determined; and fourthly, the processing module calculates two indices, the bit error rate and the frame error rate, for evaluation, and sends obtained data information to an output unit.

Test device and test method for passive intermodulation of modulated signal

Multi-bus communication system of cross modulation instrument

The invention relates to a multi-frequency-band multi-signal second-order inter-modulation testing system. The multi-frequency-band multi-signal second-order inter-modulation testing system comprises a first signal source transmitting system, a second signal source transmitting system, a multi-frequency combiner simultaneously connected with the first signal source transmitting system and the second signal source transmitting system, and a low inter-modulation load and signal receiving system connected with the multi-frequency combiner. A testing mode of the multi-frequency-band multi-signal second-order inter-modulation testing system adopts multi frequency bands, multi-path signal output and the low inter-modulation multi-frequency combiner, and the problem that a mobile operator cannot perform real-time detection to second-order passive inter-modulation index can be solved.

Multi-frequency-band multi-signal second-order inter-modulation testing system

Method and apparatus for detecting pim position

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.

Integrative passive intermodulation analyzer

Popular Tasks used by Researchers

How can I help with your research?

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

We encountered an error while loading the panel. Please try refreshing the page.

Something went wrong

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

Anyone with the link can view this chat. You can switch it back to private anytime.

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Qiang Ye

Author Tools

Chat about Author

Papers

Integrative passive intermodulation analyzer