CN207964956U - Phased array antenna near-field test switch matrix - Google Patents
Phased array antenna near-field test switch matrix Download PDFInfo
- Publication number
- CN207964956U CN207964956U CN201820340639.8U CN201820340639U CN207964956U CN 207964956 U CN207964956 U CN 207964956U CN 201820340639 U CN201820340639 U CN 201820340639U CN 207964956 U CN207964956 U CN 207964956U
- Authority
- CN
- China
- Prior art keywords
- switch matrix
- test fixture
- switch
- chip
- phased array
- 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.)
- Active
Links
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The utility model provides a kind of phased array antenna near-field test switch matrix, and three blocks of switch matrix test fixture plates prepared by conductive material fit closely；The switch matrix test fixture plate at center is provided with several cavity slots, several RF Power Splitters are made up of the switch matrix radio frequency path of one point of multichannel connection in series-parallel, in cavity slot, often passes through a radio frequency work(packing and match a switch chip, and then assemble a decaying chip；Switch chip is controlled by switch matrix control panel；The switch matrix test fixture plate of side corresponds to each cavity slot and is equipped with waveguide mouth, and the waveguide mouth is straight slot tapered waveguide.The utility model can simplify test job, improve test job efficiency.
Description
Technical field
The invention belongs to phased array antenna test fixtures, directly apply to phased array antenna near-field test.
Background technology
Phased-array technique has just occurred early in the later stage thirties.Nineteen thirty-seven, the U.S. are first begin to this research work, but
Until the mid-50 just develops 2 practical Shipborne Phased Array Radars.The sixties, the U.S. and the former Soviet Union in succession develop and
It is equipped with multi-section phased-array radar, is chiefly used in ballistic missile defense system.Above-mentioned radar belongs to fixed massive phased array thunder
It reaches, common ground is to use fixed planar array antenna, and antenna volume is big, and radiant power is high, and operating distance is remote.The seventies, phase
Control battle array radar is rapidly developed, and except America and Soviet Union two are external, and has many countries to develop and be equipped with phased-array radar.This when
The phased-array radar of phase has the characteristics that mobility height, antenna miniaturization, the diversification of antenna scanning system, has a wide range of application.80
Age, phased-array radar have obtained further application due to having the advantages that many uniquenesses.It is having been equipped with and is developing
A new generation in, in Standoff Anti-aircraft Missile weapon system mostly use multifunction array radar, it has become in the third generation, is long-range
One important symbol of air missile weapon system, substantially increases the operational performance of air missile weapon system.In 21 century,
Phased-array radar with the continuous development of science and technology with modern war weapons the characteristics of, manufacture and research will attain a yet higher goal.
Phased-array radar has quite intensive aerial array, can install 1,000 at present on the area of conventional radar antenna surface
A phased array antenna (there are about 2000 by F-22) more to more than 2,000, any one antenna can all receive and dispatch radar wave, and adjacent number
A antenna is the function having there are one radar.Since the antenna opening of phased array antenna matrix is excessive, tester often tests one
Antenna opening, it is necessary to assemble an input/output test waveguide, cause test job amount big, intricate operation, efficiency is low.
Invention content
For overcome the deficiencies in the prior art, the present invention provides a kind of phased array antenna near-field test switch matrix, can
Simplify test job, improves test job efficiency.
The technical solution adopted by the present invention to solve the technical problems is：A kind of phased array antenna near-field test cubicle switchboard
Battle array, including the control of switch matrix test fixture one, switch matrix test fixture two, switch matrix test fixture three, switch matrix
Plate, several RF Power Splitters, switch chip and decaying chip；The switch matrix test fixture one, switch matrix test
Tooling two and switch matrix test fixture three are the rectangular slab prepared using conductive material；The switch matrix test fixture
One is provided with several cavity slots according to electromagnetic coupling rule, several RF Power Splitters are made up of the switch of one point of multichannel connection in series-parallel
Matrix radio frequency path is mounted in the cavity slot, is often passed through a radio frequency work(packing and is matched a switch chip, immediately dressing
With a decaying chip；The switch chip is controlled by switch matrix control panel；The switch matrix tests work
The each cavity slot for filling two correspondence switch matrix test fixtures one is equipped with waveguide mouth, and the waveguide mouth is straight slot tapered waveguide；
Switch matrix test fixture three, switch matrix control panel, switch matrix test fixture two and the switch matrix test fixture
One fit closely successively after be connected.
Switch matrix test fixture one, switch matrix test fixture two and the switch matrix test fixture three is all made of
It is prepared by surface gold-plating or silver-plated conductive material AL 7075-T6.
Conductive silver glue is coated in the cavity slot, the switch chip, decaying chip are assemblied in chamber by soft substrate
In body slot.
The beneficial effects of the invention are as follows：
(1) front that design phased array antenna matrix is 16*80 at present, need to assemble when testing before this, test one by one one by one,
Not only heavy workload, but also waste many times.The present invention can be fit directly on phased array antenna matrix face, disposably may be used
128 antenna openings are tested, this antenna array need to only assemble 10 times and can complete to test, and be greatly reduced workload, shorten work
Make the time, improves work efficiency；
(2) phased array antenna test fixture can not only test the phased array antenna matrix designed before this, may be used also
To similar massive phased array antenna array test, greatly to increase the practicability of the tooling；
(3) present invention requires the technology of worker relatively low, is not necessarily to professional, common test personnel can be operated.
Description of the drawings
Fig. 1 is switch matrix axis side view.
Fig. 2 is one structure chart of switch matrix test fixture.
Fig. 3 is two structure chart of switch matrix test fixture.
Fig. 4 is three structure chart of switch matrix test fixture.
Fig. 5 is one internal structure chart of switch matrix test fixture.
Fig. 6 is the radio frequency path composition frame chart of switch matrix.
Specific implementation mode
Present invention will be further explained below with reference to the attached drawings and examples, and the present invention includes but are not limited to following implementations
Example.
The present invention is directed to existing phased array antenna test fixture, assembly or disassembly heavy workload, design and maintenance cost
Height, the problem of joint connection in site disorder develop a kind of phased array antenna near-field test switch matrix, pass through computer human-computer interaction circle
Face controls to realize the quick test of phased array antenna.
The present invention provides a kind of test fixture of phased array antenna, can be to needing phased array antenna to be tested quickly to carry out
Test.
The tooling is for testing phased array antenna mouth, including switch matrix test fixture 1, switch matrix test fixture
22,33,1 single-pole double-throw switch (SPDT) chips of switch matrix test fixture and 42 hilted broadsword four-throw switch chips, several soft substrates,
Several decaying chips, switch matrix control panel 4, hexagonal double-ended bolt 5.Switch matrix test fixture one, switch matrix test fixture two,
The material of switch matrix test fixture three is the AL 7075-T6 of conductive material (surface gold-plating is silver-plated).Wherein, described
Switch matrix test fixture one is provided with the slot of rectangular shape according to electromagnetic coupling rule, and each size is emulated according to HFSS and carried out
Design.Switch matrix test fixture one designs the cavity slot of certain depth, this slot designs for assembly chip with soft substrate, to
Each waveguide mouth is then distributed according to electromagnetic work divider.Switch matrix test fixture one is provided with the heavy of the round sunk screw of several assembly
Head bore and threaded hole.Two each waveguide mouth of switch matrix test fixture is straight slot tapered waveguide, this tooling is also provided with several spiral shells
Pit, when assembly, are connected switch matrix test fixture one and switch matrix test fixture two by screw.The cubicle switchboard
The counter sink of several round sunk screws is provided on battle array test fixture three, hexagonal double-ended bolt is assemblied in switch matrix test fixture one
On, switch matrix test fixture three is fixed on by screw on hexagonal double-ended bolt.Switch matrix radio frequency path assembling process：It is opening first
The cavity slot plane for closing matrix test fixture one applies suitable conductive silver glue, by the switch chip, decaying chip and soft base
Piece is assemblied in the cavity slot of the structural member, and soft substrate is assemblied according to shape in cavity slot, is often passed through a radio frequency work(and is dispensed
With a switch chip, a decaying chip (as shown in Figure 5) is and then assembled after work(point, it is then whole to be positioned over 120 DEG C
It is taken out after being toasted 1.5-2 hours in incubator.With screw by switch matrix test fixture one and switch matrix test fixture after cooling
Two connections, form complete 16*8 (1 point of 128 tunnel) radio frequency path.Assembly is completed in the radio frequency path part of switch matrix at this time.
Finally switch matrix control panel is locked on switch matrix test fixture one with hexagonal double-ended bolt, it is then whole to be assemblied in cubicle switchboard
On battle array test fixture three (as shown in Figure 1).The main function of switch matrix test fixture three is on protection switch matrix control panel
Component.
The input of above-mentioned switch matrix test fixture radio frequency is turned after micro-strip by waveguide by a single-pole double-throw switch (SPDT) chip
(NC1646C-120), two-way assemble respectively one decaying chip (NC1138C-120E), then respectively one pass through four hilted broadswords four
Throw switch chip.Behind the last one hilted broadsword four-throw switch chip point four tunnels plus decaying chip (NC1138C-120C), radio frequency again by
Micro-strip exports after turning waveguide.Radio frequency path principle is shown in Fig. 5 and Fig. 6.
The switch matrix constitutes level conversion electricity using D1~D6 diode MMSZ5V1 and IC1 chips 74ACT04
The control low level 0V of input is converted into high level 0V (opposite -5V), the 3.3V high level of input is converted into low electricity by road
Flat -5V (opposite 0V).Similarly, D6 diodes MMSZ5V1 and IC44 chip SN74LVC2GU04DBVT also completes level conversion confession
Single-pole double-throw switch (SPDT) chip uses.IC2~IC43 is shift register 74HC595, mainly by the serial control data of input
It is converted into parallel data and latches output, output end is directly connected to the control foot of four throw switch of hilted broadsword, realizes switching function.
Switch matrix control panel is fixed on by hexagonal double-ended bolt on switch matrix test fixture one, and work is tested by conducting wire connecting valve matrix
The switch chip in a cavity is filled, is powered for switch chip.And the connector on switch matrix control panel is connect with computer,
The arbitrary phased array antenna mouth of phased array antenna test fixture carries out control transmitting by computer human-computer interaction interface.
Above-mentioned tooling radio-frequency plumbing input connection BJ100, output waveguide mouth plane are directly placed at phased array antenna plane
On, phased array antenna output end connects BJ100, and input and output both ends assembly Waveguide coaxial converter simultaneously connects arrow net, waveguide mouth
Output is controlled by computer human-computer interaction interface, to test the phases of each phased array antenna mouth different frequent points and loss and keep
Data.
The embodiment provides a kind of phased array antenna test fixture, the tooling directly applies to phased array day
Line near-field test.As shown in Fig. 1~5, including switch matrix test fixture one, switch matrix test fixture two, switch matrix are surveyed
Trial work fills three, 1 single-pole double-throw switch (SPDT) chips and 42 hilted broadsword four-throw switch chips, several soft substrates, several decaying chips, opens
Close matrix majorization plate, hexagonal double-ended bolt.Radio-frequency plumbing input connection BJ100 first, by phased array antenna test fixture output waveguide
For mouth Plane Installation in first 16*8 phased array antenna matrix plane, phased array antenna output end connects BJ100, input and output
Both ends assemble Waveguide coaxial converter and connect arrow net, and the output of waveguide mouth is controlled by computer human-computer interaction interface, and test is each one by one
The phase of a phased array antenna mouth different frequent points and loss simultaneously keep data.When completion all antennas of phased array antenna test fixture
When mouth test, moves to next 16*8 antenna arrays face region to be measured and continue to test, and record preservation data.Repeated several times,
Record is distinguished respectively preserves each data, the test of the phased array antenna matrix until being fully completed entire 16*80.
The present invention can control the output of one or more antenna openings.Phased array antenna test fixture receives radio frequency input
After signal, whenever by switch chip at different levels, TT＆C system exports it and corresponds to coding, controls every grade of switch chip radiofrequency signal
Output, final radiofrequency signal can from controlled by computer antenna opening output.
TT＆C system of the present invention is mainly the intelligent control test that hardware and software is combined progress.Hardware is turned simultaneously by string
Control chip connects each antenna opening, passes through programming Control.First by testing antenna opening and controlling the physical location of chip
Corresponding coding is carried out, then compiler test software and human-computer interaction interface, then is quickly controlled each antenna opening by computer
Output.Because software sensitivity is good, so the present invention can be compatible with the test of kinds of schemes, as long as compiling different software can expire
The test request of sufficient property indices.
Claims (3)
1. a kind of phased array antenna near-field test switch matrix, including switch matrix test fixture one, switch matrix test fixture
Two, switch matrix test fixture three, switch matrix control panel, several RF Power Splitters, switch chip and decaying chip, it is special
Sign is：Switch matrix test fixture one, switch matrix test fixture two and the switch matrix test fixture three is to adopt
The rectangular slab prepared with conductive material；The switch matrix test fixture one is provided with several cavitys according to electromagnetic coupling rule
Slot, several RF Power Splitters are made up of the switch matrix radio frequency path of one point of multichannel connection in series-parallel, are mounted on the cavity
In slot, often passes through a radio frequency work(packing and match a switch chip, and then assemble a decaying chip；The switch chip
It is controlled by switch matrix control panel；The switch matrix test fixture two corresponds to each of switch matrix test fixture one
A cavity slot is equipped with waveguide mouth, and the waveguide mouth is straight slot tapered waveguide；The switch matrix test fixture three, cubicle switchboard
Battle array control panel, switch matrix test fixture two and switch matrix test fixture one are connected after fitting closely successively.
2. phased array antenna near-field test switch matrix according to claim 1, it is characterised in that：The switch matrix
Test fixture one, switch matrix test fixture two and switch matrix test fixture three are all made of surface gold-plating or silver-plated conduction material
It is prepared by matter AL 7075-T6.
3. phased array antenna near-field test switch matrix according to claim 1, it is characterised in that：In the cavity slot
It is coated with conductive silver glue, the switch chip, decaying chip are assemblied in by soft substrate in cavity slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820340639.8U CN207964956U (en) | 2018-03-13 | 2018-03-13 | Phased array antenna near-field test switch matrix |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820340639.8U CN207964956U (en) | 2018-03-13 | 2018-03-13 | Phased array antenna near-field test switch matrix |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207964956U true CN207964956U (en) | 2018-10-12 |
Family
ID=63742354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820340639.8U Active CN207964956U (en) | 2018-03-13 | 2018-03-13 | Phased array antenna near-field test switch matrix |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207964956U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117289037A (en) * | 2023-11-23 | 2023-12-26 | 南京华成微波技术有限公司 | Method and system for testing plane near field of high-power phased array antenna |
-
2018
- 2018-03-13 CN CN201820340639.8U patent/CN207964956U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117289037A (en) * | 2023-11-23 | 2023-12-26 | 南京华成微波技术有限公司 | Method and system for testing plane near field of high-power phased array antenna |
| CN117289037B (en) * | 2023-11-23 | 2024-02-09 | 南京华成微波技术有限公司 | Method and system for testing plane near field of high-power phased array antenna |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105356051B (en) | High-power target seeker tile style active phase array antenna | |
| CN105655725B (en) | A kind of extendible chip Active Arrays of two dimension | |
| CN207964956U (en) | Phased array antenna near-field test switch matrix | |
| Rossanese et al. | Designing, building, and characterizing RF switch-based reconfigurable intelligent surfaces | |
| CN106506099B (en) | A kind of device and method for digital T/R component environment experimental test | |
| CN108732562B (en) | Phased array radar | |
| CN113871861B (en) | 4-bit electronic beam scanning planar antenna array | |
| CN102593589A (en) | Single pulse wide angle electric scanning reflective array antenna | |
| CN110148838A (en) | A kind of directional diagram reconstructable planar array antenna and its control method based on digital coding characterization | |
| CN208690502U (en) | Micro-strip array antenna system based on 77GHz millimetre-wave radar | |
| CN205160550U (en) | Multiport testing arrangement | |
| CN111562553A (en) | Method for improving radio frequency semi-physical simulation broadband signal angle simulation precision | |
| CN106842156A (en) | A kind of moving-target signal re-radiation range accuracy calibration equipment | |
| CN105140658A (en) | Reconfigurable mono-pulse antenna | |
| CN204167443U (en) | A kind of broadband hilted broadsword 16 such as to throw at the phase PIN switch | |
| CN202218234U (en) | Miniaturized TACAN (Tactical Air Navigation) signal simulator based on PXI (Peripheral Component Interconnect eXtensions for Instrumentation) bus | |
| US3914765A (en) | Simplified doppler antenna system | |
| CN209981472U (en) | Broadband circularly polarized flat array antenna | |
| CN110579756A (en) | Distributed optical transmission wave control system | |
| CN203056101U (en) | Active rapid amplitude-phase control system | |
| CN202841149U (en) | Ultra-wide-band miniature multi-channel calibrating network | |
| CN110690537A (en) | Terahertz phase shifter with symmetrical impedance type phase shifting microstructure | |
| CN207099070U (en) | Wide-band microwave width phase control applied to phased array system receives and dispatches multifunction chip | |
| CN108736123A (en) | A kind of compact suspension micro-strip high isolation multichannel power combiner | |
| CN115064856A (en) | W-waveband self-tracking mode coupler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |