CN113834973A - Package antenna yield detection device - Google Patents
Package antenna yield detection device Download PDFInfo
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- CN113834973A CN113834973A CN202010585861.6A CN202010585861A CN113834973A CN 113834973 A CN113834973 A CN 113834973A CN 202010585861 A CN202010585861 A CN 202010585861A CN 113834973 A CN113834973 A CN 113834973A
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- 238000001514 detection method Methods 0.000 title abstract description 13
- 238000012360 testing method Methods 0.000 claims abstract description 102
- 230000005855 radiation Effects 0.000 claims abstract description 12
- 238000004806 packaging method and process Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 abstract description 2
- 238000002955 isolation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
- G01R29/0892—Details related to signal analysis or treatment; presenting results, e.g. displays; measuring specific signal features other than field strength, e.g. polarisation, field modes, phase, envelope, maximum value
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/10—Radiation diagrams of antennas
Abstract
The invention relates to a package antenna yield detection device for detecting whether a package antenna is good or not. The test box is provided with a test window, the test carrier plate comprises a radio frequency signal wire, the N standard antennas are respectively arranged at different positions in the test box, and the test machine comprises a signal generator, a signal analyzer and an operation control unit; the signal analyzer receives the radiation electromagnetic waves emitted by the packaged antenna or the test signals emitted by the N standard antennas and generates corresponding amplitude signals, the operation control unit receives the amplitude signals and compares the amplitude signals with a preset standard value to judge whether the packaged antenna is good or not, and therefore the method can judge whether the packaged antenna is good or not without the need of comprehensively measuring the spherical field pattern of the packaged antenna like the prior art.
Description
Technical Field
The present invention relates to a testing apparatus, and more particularly, to a testing apparatus for a yield of packaged antennas.
Background
Referring to fig. 1, the conventional packaged antenna yield detection apparatus includes an isolation box 110, a standard antenna 120 and a network analyzer 130, wherein the isolation box 110 has an opening 111 on a top surface thereof, and the standard antenna 120 is disposed in the isolation box 110 and located on a bottom surface of the isolation box 110. In the conventional package antenna yield test, the package antenna 140 is disposed on the test carrier 150, the test carrier 150 is disposed on the top surface of the isolation box 110 after the package antenna 140 is aligned with the opening 111 of the isolation box 110, the package antenna 140 is located at the opening 111 and faces the standard antenna 120 in the isolation box 110, the network analyzer 130 is electrically connected to the standard antenna 120 and the package antenna 140, and the standard antenna 120 is used to measure whether the transceiving function of the package antenna 140 is normal.
However, the conventional package antenna yield detection apparatus only detects a radiation parameter (such as amplitude) in a single fixed direction, and is not suitable for the package antenna of 5G nowadays, and it is difficult to detect the radiation parameter in the single direction to meet the package antenna requirement of 5G communication era. On the other hand, if the radiation pattern of the whole spherical surface is measured for each packaged antenna, the detection time spent by each packaged antenna will be increased, so the radiation pattern measurement of the whole spherical surface for the packaged antenna is only suitable for research and development level tests, but not suitable for high-speed detection in factory manufacturing.
Disclosure of Invention
To solve the above-mentioned drawbacks, the present invention provides an apparatus for rapidly detecting the yield of packaged antennas by using a plurality of amplitude signals related to the field pattern of the packaged antennas without measuring the spherical field pattern of the packaged antennas completely.
The invention provides a device for detecting the yield of packaged antennas, which is used for detecting whether the packaged antennas are good products or not, and comprises the following components:
the test box is provided with a test window, and the test window is used for allowing the electromagnetic waves of the packaged antenna to penetrate into the test box;
the test carrier plate comprises a radio frequency signal wire for electrically connecting the packaging antenna;
n standard antennas which are respectively arranged at different positions in the test box at intervals, wherein N is a positive integer greater than or equal to 2; and
the tester comprises a signal generator, a signal analyzer and an operation control unit;
one end of the radio frequency signal wire is electrically connected with the packaging antenna, and the other end of the radio frequency signal wire is electrically connected with the signal generator;
the signal analyzer is electrically connected with each standard antenna, receives a radiation electromagnetic wave from the packaged antenna through each standard antenna, and correspondingly generates an amplitude signal according to the amplitude of the radiation electromagnetic wave received by each standard antenna;
the operation control unit is electrically connected with the signal analyzer to receive each amplitude signal, and compares each amplitude signal with a preset standard value to judge whether the packaged antenna is a good product or not.
Preferably, each standard antenna has a number i, the signal analyzer correspondingly generates an amplitude signal Ai of the number i according to the amplitude of the radiation electromagnetic wave received by the standard antenna of the number i, wherein a variable i is any integer from 1 to N, the operation control unit compares the amplitude signal Ai of the number i with a preset standard value Si of the number i, and if the difference value between each amplitude signal Ai and the preset standard value Si is smaller than a threshold sd (i), the packaged antenna is determined to be a good product.
Another kind of packaged antenna yield detection device, whether supplies to detect packaged antenna for the yields, including:
a test box having a test window for allowing the electromagnetic wave of the packaged antenna to penetrate into the test box
The test carrier plate comprises a radio frequency signal wire for electrically connecting the packaging antenna;
n standard antennas which are respectively arranged at different positions in the test box at intervals, wherein N is a positive integer greater than or equal to 2; and
the tester comprises a signal generator, a signal analyzer and an operation control unit;
one end of the radio frequency signal wire is electrically connected with the packaging antenna, and the other end of the radio frequency signal wire is electrically connected with the signal analyzer;
the signal generator is electrically connected with each standard antenna and transmits a test signal through each standard antenna;
the signal analyzer receives each test signal through the test carrier plate and the packaging antenna, and generates a corresponding amplitude signal according to the amplitude of each test signal;
the operation control unit is electrically connected with the signal analyzer to receive each amplitude signal, and compares each amplitude signal with a preset standard value to judge whether the packaged antenna is a good product or not.
Preferably, each standard antenna has a serial number i, the signal generator transmits a test signal of the serial number i through each standard antenna of the serial number i, wherein a variable i = 1-N, the signal analyzer receives the test signal of the serial number i and generates an amplitude signal Ai of the serial number i according to the received test signal of the serial number i, the operation control unit compares the amplitude signal Ai of the serial number i with a preset standard value Si of the serial number i, and if a difference value between each amplitude signal Ai and the preset standard value Si is smaller than a threshold value sd (i), the packaged antenna is determined to be good.
Preferably, the test box includes roof, bottom plate and four curb plates, and four curb plates surround and set up between roof and bottom plate to connect respectively in the four sides of roof and bottom plate, the test window sets up on the roof.
Preferably, the present invention comprises at least one reflector disposed in the test box and respectively attached to the four side plates.
Preferably, the test carrier further includes a baseband control line, one end of the baseband control line is electrically connected to the package antenna, and the other end of the baseband control line is used for receiving the beam switching control signal.
Compared with the prior art, the invention has the advantages that N (N =2, 3, 4, 5 …) standard antennas arranged in the test box are utilized to transmit and receive radio electromagnetic waves between the packaged antennas, and a tester is used for simply comparing N amplitude signals with preset standard values, so that a more accurate result can be obtained by measuring from one angle compared with the prior art, and the time consumed by the detection of the packaged antennas is reduced.
Drawings
FIG. 1 is a cross-sectional side view of a packaged antenna yield testing device according to a first preferred embodiment of the present invention.
FIG. 2 is a block diagram of a testing machine according to the first preferred embodiment.
FIG. 3 is a partial schematic view of a first preferred embodiment of the present invention.
Fig. 4 is a schematic diagram of a first preferred embodiment of the present invention, illustrating that the number of standard antennas is 4.
Fig. 5 is a schematic diagram of a first preferred embodiment of the present invention, illustrating that the number of standard antennas is 8.
Fig. 6 is a schematic diagram of the first preferred embodiment of the invention further including a switch.
FIG. 7 is a schematic sectional side view of a second preferred embodiment of the present invention.
FIG. 8 is a schematic view of a third preferred embodiment of the present invention further comprising a plurality of plane mirrors.
FIG. 9 is a schematic diagram of a third preferred embodiment of the present invention further comprising a plurality of concave mirrors.
Fig. 10 is a schematic diagram of a packaged antenna.
Fig. 11 is a schematic diagram of a conventional package antenna yield detection apparatus.
Description of the symbols:
1,140: packaging the antenna;
10: packaging the test base;
11. 12, 13, 14: packaging the antenna change-over switch;
2: a test box;
21: a top plate;
211: testing the window;
22: a base plate;
23: a side plate;
3. 150: testing the carrier plate;
31: a radio frequency signal line;
32: a fundamental frequency control line;
4. 120: a standard antenna;
5: a testing machine;
51: a signal generator;
52: a signal analyzer;
521: a signal transfer switch;
53: an arithmetic control unit;
54: a programmable logic controller;
55: a power supply;
9: a mirror;
110: an isolation box;
111: an opening;
130: a network analyzer;
ai: an amplitude signal;
si: presetting a standard value;
SD (i): a threshold value;
w: an electromagnetic wave.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
Referring to fig. 1 and 2, in a first preferred embodiment, the device for detecting the yield of the packaged antenna 1 of the present invention is used to detect the yield of the packaged antenna 1, and the present invention includes a test box 2, a test carrier 3, N standard antennas 4 and a tester 5, in the first preferred embodiment, the packaged antenna 1 is used as a transmitting antenna and the N standard antennas 4 are used as receiving antennas.
The testing box 2 is a movable structure, can be folded and closed to be in a flat plate shape or unfolded to be in a box shape, and can also be in a fixed rectangular box shape, and the testing box 2 comprises a top plate 21, a bottom plate 22 and four side plates 23. The four side plates 23 are disposed between the top plate 21 and the bottom plate 22 and connected to four sides of the top plate 21 and the bottom plate 22, respectively, the top plate 21 has a test window 211, and the test window 211 is used for allowing the electromagnetic wave W emitted by the package antenna 1 to penetrate into the test box 2.
The N standard antennas 4 are respectively arranged at different positions in the test box 2 at intervals, and N is a positive integer greater than or equal to 2. Fig. 3 shows an implementation state of N =3, fig. 4 shows an implementation state of N =4, i.e. four standard antennas 4 are arranged on the bottom plate 22 of the test box 2, fig. 5 shows an implementation state of N =8, i.e. four standard antennas 4 are arranged on the bottom plate 22 of the test box 2, and the other four standard antennas 4 are respectively arranged on four side plates 23 in the test box 2.
As shown in fig. 2, the testing machine 5 includes a signal generator 51, a signal analyzer 52, an operation control unit 53, a Programmable Logic Controller (PLC) 54, and a power supply 55, wherein the signal generator 51, the signal analyzer 52, and the operation control unit 53 are electrically connected to the PLC 54.
Referring to fig. 1 and 3, the test carrier 3 is disposed on the top plate 21, a package testing base 10 is disposed on the test carrier 3, the package testing base 10 is used to dispose the package antenna 1, the package antenna 1 can be exposed out of the bottom surface of the package testing base 10, the package antenna 1 is fixed at the testing window 211 of the testing box 2, so that the package antenna 1 faces the N standard antennas 4 disposed in the testing box 2, and the signal generator 51 and the operation control unit 53 are disposed on the test carrier 3. The test carrier 3 includes a radio frequency signal line 31 and a baseband control line 32, one end of the radio frequency signal line 31 is electrically connected to the package antenna 1, the other end of the radio frequency signal line 31 is electrically connected to the signal generator 51, the test machine 5 can also measure the radio frequency conduction characteristic parameter (e.g., S parameter) of the package antenna 1 by the radio frequency signal line 31 in a conduction manner, one end of the baseband control line 32 is electrically connected to the package antenna 1, the other end of the baseband control line 32 is used for receiving the beam switching control signal transmitted by the operation control unit 53, the beam switching control signal is used for controlling the beam forming of the package antenna 1, and in addition, the test machine 5 can also measure the baseband characteristic parameter (e.g., dc level verification and supply) of the package antenna 1 by the baseband control line 32.
The signal analyzer 52 is electrically connected to each standard antenna 4, and receives the radiated electromagnetic wave generated by the package antenna 1 through each standard antenna 4, where each standard antenna 4 is denoted by the number i, and the signal analyzer 52 generates an amplitude signal Ai of the number i according to the amplitude of the radiated electromagnetic wave received by each standard antenna 4 of the number i, where the variable i is any integer from 1 to N.
The operation control unit 53 compares the amplitude signal Ai of the number i with the preset standard value Si of the number i to detect whether the packaged antenna 1 is good, and if the difference between each amplitude signal Ai and the corresponding preset standard value Si is smaller than the threshold sd (i), it is determined that the packaged antenna 1 is good in quality, and is good, and otherwise, it is determined that the packaged antenna 1 is damaged and is a defective product. The reason for this is that the present invention can be applied in a process of inspecting packaged antennas one by one after being manufactured by a production line, before mass production, a good packaged antenna 1 can be selected, and amplitude signals Ai corresponding to numbers i =1 to N can be obtained by this embodiment, wherein each standard antenna 4 receives the radiated electromagnetic wave emitted by the good packaged antenna 1, the signal analyzer 52 generates the amplitude signals Ai corresponding to numbers i =1 to N of the good packaged antenna 1 according to the amplitude of the radiated electromagnetic wave received by each standard antenna 4 of number i, and the amplitude signals Ai are sequentially used as the preset standard values Si of numbers i =1 to N, and if the amplitude signals Ai are measured by the good packaged antenna 1 to the corresponding number i, the amplitude signals Ai are close to the preset standard values Si of the corresponding number i, preferably, each amplitude signal Ai can be almost equal to each preset standard value Si, in contrast, in each amplitude signal Ai measured by the non-defective package antenna 1, at least one or more amplitude signals significantly deviate from each predetermined standard value Si, that is, at least one of | Ai-Si | > sd (i), i =1 to N.
In addition, the signal analyzer 52 may be a multi-port as shown in fig. 1, and is electrically connected to each standard antenna 4 through each port, or the signal analyzer 52 may be connected to a 1 × N signal switch 521 in series between the N standard antennas 4 and the signal analyzer 52 through a single port as shown in fig. 6, so that the signal analyzer 52 is electrically connected to the N standard antennas 4 through the signal switch 521.
Fig. 7 is a second preferred embodiment of the present invention, which is different from the first preferred embodiment in that the N (N =7) standard antennas 4 are used as transmitting antennas and the package antenna 1 is used as receiving antennas, the signal analyzer 52 and the operation control unit 53 are disposed on the test carrier board 3, the signal generator 51 is electrically connected to each standard antenna 4 and transmits a test signal with number i through each standard antenna 4 with number i, wherein the variable i =1 to N, one end of the rf signal line 31 is electrically connected to the package antenna 1, the other end is electrically connected to the signal analyzer 52, and the signal analyzer 52 receives the test signal with number i through the test carrier board 3 and the package antenna 1 and generates an amplitude signal Ai with number i corresponding to the received test signal with number i.
Similarly, the arithmetic control unit 53 compares the amplitude signal Ai of the number i with a preset standard value Si of the number i to detect whether the packaged antenna 1 is good, and if the difference between each amplitude signal Ai and the corresponding preset standard value Si is smaller than the threshold sd (i), it is determined that the packaged antenna 1 is good, otherwise, it is damaged. In the second preferred embodiment of the present invention, the predetermined standard value Si is selected from a known good package antenna 1, and the amplitude signal Ai with the corresponding number i = 1-N is obtained through the present embodiment, wherein the signal generator 51 transmits a test signal with the number i through each standard antenna 4 with the number i, wherein the variable i = 1-N, and the signal analyzer 52 correspondingly generates the amplitude signal Ai with the number i according to the test signal with the number i received by the known good package antenna 1, and sequentially uses the amplitude signal Ai as the predetermined standard value Si with the number i = 1-N.
Referring to fig. 8 and 9, which are schematic views of a third preferred embodiment of the present invention, the third preferred embodiment further includes two mirrors 9 attached to the side plates 23, respectively, compared to the first or second preferred embodiment. The two mirrors may be plane mirrors or concave mirrors, each mirror 9 in fig. 8 is a plane mirror, each mirror 9 in fig. 9 is a concave mirror, the two mirrors 9 are used to reflect the radiation beams of the side plates 23 deflected by the package antenna 1 to the N standard antennas 4, so that the arithmetic control unit 6 can also collect various environment signals directly incident or reflected by the package antenna 1 at various different beam forming times through the standard antennas 4, and store and form a big data base, in particular store a plurality of signals received by the package antenna 1 from the package antenna 1 at various beam switching times by the N standard antennas 4, and use Artificial Intelligence (AI) technology to conclude which beam type the package antenna 1 mostly failed is switched to, and thus reverse which one or more of the package antenna switches 11-14 of the package antenna 1 shown in fig. 10 Damage occurs.
Compared with the prior art, the packaged antenna yield detection device has the advantages that (1), the N (N =2, 3, 4, 5 …) standard antennas 4 arranged in the test box 2 and the packaged antenna 1 are used for receiving and transmitting radio magnetic waves, and the arithmetic control unit 53 is used for simply comparing the N amplitude signals Ai with the preset standard value Si, so that a more accurate result can be obtained by measuring from one angle compared with the prior art shown in the figure 11, the time consumed by the packaged antenna detection is reduced, and on the other hand, because the packaged antenna yield detection device is used for detecting whether the quality of the packaged antenna is qualified or not one by one and not accurately measuring the radiation field type of the packaged antenna, expensive wave absorbing materials do not need to be attached to the test box 2 in the invention, so that the packaged antenna field type measurement has lower cost and is easy to establish compared with the traditional antenna field type measurement, The advantage of mobility; and (2) determining which package antenna switches 11-14 in one package antenna 1 are damaged as described above compared with the conventional technology.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. A device for detecting yield of packaged antenna, comprising:
the test box is provided with a test window, and the test window is used for enabling the electromagnetic waves of a packaged antenna to penetrate into the test box;
a test carrier including a radio frequency signal line electrically connected to the package antenna;
n standard antennas which are respectively arranged at different positions in the test box at intervals, wherein N is a positive integer greater than or equal to 2; and
a tester, including a signal generator, a signal analyzer and an operation control unit;
the packaged antenna is used as a transmitting antenna, and the N standard antennas are used as receiving antennas;
one end of the radio frequency signal wire is electrically connected with the packaging antenna, and the other end of the radio frequency signal wire is electrically connected with the signal generator;
the signal analyzer is electrically connected with each standard antenna, receives a radiation electromagnetic wave from the packaging antenna through each standard antenna, and correspondingly generates an amplitude signal according to the amplitude of the radiation electromagnetic wave received by each standard antenna;
the operation control unit is electrically connected with the signal analyzer to receive the amplitude signals and compares the amplitude signals with a preset standard value to judge whether the packaged antenna is good or not.
2. The device for detecting the yield of packaged antennas as claimed in claim 1, wherein each of the standard antennas has a serial number i, the signal analyzer generates an amplitude signal Ai of the serial number i according to the amplitude of the radiated electromagnetic wave received by each of the standard antennas of the serial number i, wherein a variable i is any integer from 1 to N, the operation control unit compares the amplitude signal Ai of the serial number i with a preset standard value Si of the serial number i, and if the difference between each of the amplitude signals Ai and the preset standard value Si is less than a threshold sd (i), the packaged antenna is determined to be good.
3. The apparatus of claim 1, wherein the testing box comprises a top plate, a bottom plate and four side plates, the four side plates are disposed around and between the top plate and the bottom plate and respectively connected to four sides of the top plate and the bottom plate, and the testing window is disposed on the top plate.
4. The apparatus of claim 3, further comprising at least one reflector disposed in the testing box and attached to the four side plates respectively.
5. The apparatus of claim 1, wherein the test carrier further comprises a baseband control line, one end of the baseband control line is electrically connected to the package antenna, and the other end of the baseband control line is used for receiving a beam switching control signal.
6. A device for detecting yield of packaged antenna, comprising:
the test box is provided with a test window, and the test window is used for enabling the electromagnetic waves of a packaged antenna to penetrate into the test box;
a test carrier including a radio frequency signal line electrically connected to the package antenna;
n standard antennas which are respectively arranged at different positions in the test box at intervals, wherein N is a positive integer greater than or equal to 2; and
a tester, including a signal generator, a signal analyzer and an operation control unit;
the N standard antennas are used as transmitting antennas, and the packaged antenna is used as a receiving antenna;
one end of the radio frequency signal wire is electrically connected with the packaging antenna, and the other end of the radio frequency signal wire is electrically connected with the signal analyzer;
the signal generator is electrically connected with each standard antenna and transmits a test signal through each standard antenna;
the signal analyzer receives the test signals through the test carrier plate and the packaging antenna and generates a corresponding amplitude signal according to the amplitude of each test signal;
the operation control unit is electrically connected with the signal analyzer to receive the amplitude signals and compares the amplitude signals with a preset standard value to judge whether the packaged antenna is good or not.
7. The device for detecting the yield of packaged antennas as claimed in claim 6, wherein each of the standard antennas has a serial number i, the signal generator transmits a test signal of the serial number i through each of the standard antennas of the serial number i, wherein the variable i =1 to N, the signal analyzer receives the test signal of the serial number i and generates an amplitude signal Ai of the serial number i according to the received test signal of the serial number i, the operation control unit compares the amplitude signal Ai of the serial number i with a predetermined Si of the serial number i, and if a difference between each of the amplitude signal Ai and the predetermined standard Si is less than a threshold sd (i), the packaged antenna is determined to be good.
8. The apparatus as claimed in claim 6, wherein the testing box includes a top plate, a bottom plate and four side plates, the four side plates are disposed around and between the top plate and the bottom plate and respectively connected to four sides of the top plate and the bottom plate, and the testing window is disposed on the top plate.
9. The apparatus of claim 8, further comprising at least one reflector disposed in the testing box and attached to the four side plates respectively.
10. The apparatus of claim 6, wherein the test carrier further comprises a baseband control line, one end of the baseband control line is electrically connected to the package antenna, and the other end of the baseband control line is used for receiving a beam switching control signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010585861.6A CN113834973B (en) | 2020-06-24 | 2020-06-24 | Packaged antenna yield detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010585861.6A CN113834973B (en) | 2020-06-24 | 2020-06-24 | Packaged antenna yield detection device |
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| CN113834973A true CN113834973A (en) | 2021-12-24 |
| CN113834973B CN113834973B (en) | 2024-01-26 |
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