CN201134812Y - Passive intermodulating distortion testing device - Google Patents
Passive intermodulating distortion testing device Download PDFInfo
- Publication number
- CN201134812Y CN201134812Y CNU2007200774050U CN200720077405U CN201134812Y CN 201134812 Y CN201134812 Y CN 201134812Y CN U2007200774050 U CNU2007200774050 U CN U2007200774050U CN 200720077405 U CN200720077405 U CN 200720077405U CN 201134812 Y CN201134812 Y CN 201134812Y
- Authority
- CN
- China
- Prior art keywords
- triplexer
- port
- test
- mouth
- passive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 42
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 238000004891 communication Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
Landscapes
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
The utility model relates to a passive intermodulation distortion testing device, which comprises two signal generators, a triplexer 1, a triplexer 2, two high power loads, a frequency spectrograph and an N type matching load, wherein the two signal generators are respectively connected with a Tx port of the triplexer1 through a power amplifier, the two high power loads are respectively connected with the Tx port of the triplexer 2, all antenna apertures of the triplexer 1 and the triplexer 2 are connected with a tested product, the frequency spectrograph is connected with a Rx port of the triplexer 2 when a transmission mode is tested, the N type matching load is connected with the Rx port of the triplexer 1 when the transmission mode is tested, the frequency spectrograph is connected with the Rx port of the triplexer 1 when a reflection mode is tested, and the N type matching load is connected with the Rx port of the triplexer 2 when the reflection mode is tested. The testing device not only can test the transmission of passive intermodulation but also can test the reflection mode and has the advantages of stable testing performance, low design cost and the like, and the testing device is a set of passive intermodulation testing system with extremely high performance price ratio for passive component manufacturers.
Description
Technical field
The utility model relates to the passive cross modulation test technology, particularly relates to the passive intermodulation distortion testing apparatus.
Background technology
Passive intermodulation distortion is to be produced by the non-linear factor in the communication system, will produce serious interference the, especially third order intermodulation distortion (IMD3) to other communication equipments.Third order intermodulation distortion (IMD3) be produce by two frequencies, be ubiquitous problem in the narrow-band communication system, when having two or more signal in the system, can produce very strong intermodulation product usually.The second harmonic 2f1 of two signal f1 and f2 and 2f2 can further produce intermodulation distortion, and its maximum intermodulation product is exactly third order intermodulation (2f1-f2 and 2f2-f1).These intermodulation products normally third order intermodulation product of transmit frequency band are fallen in the receive path, receiving sensitivity produce is disturbed, even caused the receiver can't operate as normal.No matter be active or passive device such as amplifier filter etc. all can produce the third order intermodulation product.
Along with the anxiety day by day of frequency resource, intermodulation product does not influence each other between different communication systems in order to make, so require harsher to the intermodulation of product yet.But the method for testing to the third-order intermodulation product IMD3 of third order intermodulation especially passive device (system) does not also have very authority and method of testing accurately, and the passive cross modulation test system price is very expensive at present simultaneously, is that some medium-sized and small enterprises are unaffordable.Though also have some manufacturers to release simple and easy IMD test macro at present in addition, but the method for testing of these small-sized test macros only rests on the transmission or the reflection of surveying passive intermodulation, and the internal structure connection is loaded down with trivial details, has brought more test uncertain factor, makes testing reliability reduce.
Summary of the invention
Technical problem to be solved in the utility model is exactly to provide for the defective that overcomes above-mentioned prior art existence
The purpose of this utility model can be achieved through the following technical solutions: the passive intermodulation distortion testing apparatus, it is characterized in that, comprise two signal generators, triplexer one, triplexer two, two high power loads, frequency spectrograph, N type matched load, described two signal generators are connected with the Tx mouth of triplexer one by a power amplifier respectively, described two high power loads are connected with the Tx mouth of triplexer two respectively, described triplexer one, the antenna opening of triplexer two all is connected with product to be measured, described frequency spectrograph is connected with the Rx mouth of triplexer two when the test transmission mode, described N type matched load is connected with the Rx mouth of triplexer one when the test transmission mode, described frequency spectrograph is connected with the Rx mouth of triplexer one when the test reflective-mode, and described N type matched load is connected with the Rx mouth of triplexer two when the test reflective-mode.
Described triplexer one, triplexer two all are connected with product to be measured by low intermodulation cable.
Compared with prior art, but the utility model not only the testing passive intermodulation transmission but also can test reflective-mode, and advantage such as it is stable to have a test performance, and design cost is low, this is the high passive cross modulation test system of a cover cost performance for passive device manufacturer.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the passive intermodulation distortion testing apparatus, comprise two signal generators 1,2, triplexer 1, triplexer 24, two high power loads 5,6, frequency spectrograph 7, N type matched load 8, described two signal generators 1,2 respectively by a power amplifier 9,10 are connected with the Tx mouth of triplexer 1, described two high power loads 5,6 are connected with the Tx mouth of triplexer 24 respectively, described triplexer 1, the antenna opening of triplexer 24 all is connected described frequency spectrograph 7 and is connected with the Rx mouth of triplexer 24 when the test transmission mode with product to be measured, described N type matched load 8 is connected with the Rx mouth of triplexer 1 when the test transmission mode, described frequency spectrograph 7 is connected with the Rx mouth of triplexer 1 when the test reflective-mode, and described N type matched load 8 is connected with the Rx mouth of triplexer 24 when the test reflective-mode.
Described triplexer 1, triplexer 24 all are connected with product to be measured by low intermodulation cable.Connect by the common test cable link between the miscellaneous part.This test macro adopts two triplexers as standard component, can test transmission and reflect two patterns, and system's third order intermodulation IMD test value can reach more than the 122dBm.
Claims (2)
1. passive intermodulation distortion testing apparatus, it is characterized in that, comprise two signal generators, triplexer one, triplexer two, two high power loads, frequency spectrograph, N type matched load, described two signal generators are connected with the Tx mouth of triplexer one by a power amplifier respectively, described two high power loads are connected with the Tx mouth of triplexer two respectively, described triplexer one, the antenna opening of triplexer two all is connected with product to be measured, described frequency spectrograph is connected with the Rx mouth of triplexer two when the test transmission mode, described N type matched load is connected with the Rx mouth of triplexer one when the test transmission mode, described frequency spectrograph is connected with the Rx mouth of triplexer one when the test reflective-mode, and described N type matched load is connected with the Rx mouth of triplexer two when the test reflective-mode.
2. passive intermodulation distortion testing apparatus according to claim 1 is characterized in that, described triplexer one, triplexer two all are connected with product to be measured by low intermodulation cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200774050U CN201134812Y (en) | 2007-12-27 | 2007-12-27 | Passive intermodulating distortion testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200774050U CN201134812Y (en) | 2007-12-27 | 2007-12-27 | Passive intermodulating distortion testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201134812Y true CN201134812Y (en) | 2008-10-15 |
Family
ID=40063083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200774050U Expired - Lifetime CN201134812Y (en) | 2007-12-27 | 2007-12-27 | Passive intermodulating distortion testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201134812Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101471736B (en) * | 2007-12-27 | 2013-04-17 | 凯镭思通讯设备（上海）有限公司 | Passive cross modulation test system |
| CN113267718A (en) * | 2021-07-19 | 2021-08-17 | 成都市克莱微波科技有限公司 | Power amplifier testing method and device and computer readable storage medium |
-
2007
- 2007-12-27 CN CNU2007200774050U patent/CN201134812Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101471736B (en) * | 2007-12-27 | 2013-04-17 | 凯镭思通讯设备（上海）有限公司 | Passive cross modulation test system |
| CN113267718A (en) * | 2021-07-19 | 2021-08-17 | 成都市克莱微波科技有限公司 | Power amplifier testing method and device and computer readable storage medium |
| CN113267718B (en) * | 2021-07-19 | 2021-09-17 | 成都市克莱微波科技有限公司 | Power amplifier testing method and device and computer readable storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101471736B (en) | Passive cross modulation test system | |
| CN102946286B (en) | Method, device and system for controlling detection of equipment | |
| CN1996802B (en) | RF consistency testing system of the time division synchronization and code division multi-address access terminal | |
| CN103547933B (en) | For the system that positions the fault in cable system and equipment | |
| JP6001110B2 (en) | Operation test for circuits that transmit and receive signals | |
| CN103684638A (en) | Intermodulation distortion testing method of high-power device | |
| CN101425857A (en) | Diagnosis method for non-linear interference outside communication band of transmission device | |
| CN102664694A (en) | Multi-band and multi-signal mixed inter-modulation interference analyzer and analyzing method thereof | |
| CN107124233A (en) | A kind of use electric bridge filter joint realizes the device and method of broadband passive intermodulation measurement | |
| CN104880621A (en) | Self calibration passive intermodulation tester | |
| CN203225773U (en) | Antenna feed system standing wave detection device | |
| CN103227687A (en) | Passive multi-step intermodulation tester | |
| CN105323015B (en) | A kind of device for realizing passive device test | |
| CN201134812Y (en) | Passive intermodulating distortion testing device | |
| CN103001712A (en) | Multi-frequency-band multi-signal second-order inter-modulation testing system | |
| US11303366B2 (en) | Passive harmonic test system and method | |
| CN103501204B (en) | A kind of X-band power output telemetry-acquisition device | |
| CN103245851A (en) | Intermodulation tester for open-circuit device | |
| CN103346851B (en) | Multi-system high-integration multi-level intermodulation test system | |
| CN203414532U (en) | Intermodulation tester for open-circuit device | |
| CN210037986U (en) | Antenna testing device | |
| CN104683041A (en) | Radio frequency element testing method | |
| CN103220051B (en) | Mobile communication network interference comprehensive tester | |
| Rosenberger | The measurement of intermodulation products on passive components and transmissionlines | |
| JP2012088327A (en) | Distortion measuring apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: KAELUS COMMUNICATION EQUIPMENT (SHANGHAI) CO., LTD Free format text: FORMER NAME: ALLRIZON-TONGGUANG COMMUNICATIONS EQUIPMENT (SHANGHAI) CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 200335 Shanghai city Changning District Guang Shun building B No. 33 south room two floor of the South Tower Patentee after: Kai Kai communications equipment (Shanghai) Co., Ltd. Address before: Changning District Tianshan Road 200335 Shanghai City 789 Building No. 3 West Patentee before: Allrizon-Tongguang Communications Equipment (Shanghai) Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20081015 Effective date of abandoning: 20071227 |
|
| RGAV | Abandon patent right to avoid regrant |