CN109066026A - A kind of Ka band dual channel duplexer suitable for multi-antenna array - Google Patents
A kind of Ka band dual channel duplexer suitable for multi-antenna array Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a kind of Ka band dual channel duplexers suitable for multi-antenna array, including main casing, upper cover plate and lower cover plate, the main casing is provided with transmission channel and lower transmission channel, demarcation plate is provided between the upper transmission channel and lower transmission channel, the side wall of the main casing open up there are two side by side upper public input port and under public input port, and two high channel output ports and two low pass road output ports, described two high channel output ports of public input port and upper transmission channel penetrate through, under public input port and two low pass road output ports and lower transmission channel penetrate through.The duplexer that the present invention realizes two channels in a limited space is integrated, can be achieved at the same time two common ends and four corresponding channel outputs.
Description
Technical field
The present invention relates to a kind of Ka band duplexers, more particularly to suitable for the Ka band dual double-channel duplex of multi-antenna array
Device belongs to millimetre-wave radar and field of communication technology.The present invention relates in millimetre-wave radar and the communications field, especially suitable for
?.
Background technique
Duplexer is commonly used in the isolation in radar or communication system, between realization different channels.It is double in millimeter wave frequency band
Work device is typically based on waveguiding structure realization, because waveguiding structure has the characteristics that low-loss, high power capacity.Regardless of what is based on
The realization principle and structure type of sample, existing duplexer be substantially it is single pass, i.e., only include a common end and two
Corresponding output end.
The utility model patent " a kind of Ka band duplexer " that Wang Qingfen as disclosed in 2010 et al. writes, the duplexer
Realize that there is an individual transmission channel based on waveguiding structure, the input/output port and transmission channel of the duplexer mutually hang down
Directly, if to realize binary channels, that two channels can be only in back-to-back position, in the application of practical multiaerial system,
It is typically all to arrange between mutiple antennas in opposite directions, so the diplexer structure is not suitable for multiaerial system.
2013, Electronic University Of Science & Technology Of Hangzhou's journal reported paper " the Ka wave band waveguide duplex that Zhang Zhi's letter et al. is write
The development of device ", this article is based on the face E metallic membrane and realizes that bandpass filter, the filter also belong to channel filter, have
One common end and two corresponding output ends, and two output ends are contrary, are not suitable for towards consistent array antenna
System.
A kind of patent of invention " Ka band duplexer " that first its et al. is write of woods disclosed in 2014, the duplexer are based on electricity
The transparent principle of magnetic induction realizes bandpass filter by dielectric substrate, and then constitutes duplexer, has the structure of miniaturization special
Point equally has an individual transmission channel.The duplexer is related to metal and two kinds of structures of PCB, complex process, and PCB medium
Diaphragm and metal cavity certainly exist installation error when integrated, are easy to influence performance.
So far, it yet there are no using the duplexer that the binary channels of two nonstandard common ends and four corresponding output ends integrates
Open report.
Summary of the invention
The present invention is directed to low existing duplexer integrated level, complex process, is difficult to be suitable for the deficiency of large scale array system,
Propose it is a kind of use nonstandard public port, integrate the diplexer structure in two channels, it is structural compactness with height, relatively light
Weight and low loss characteristic, suitable for receiving and dispatching the array system of alien frequencies transmission, it be a kind of radar with array features or
The device of transmitting-receiving alien frequencies synchronous transfer is completed in communication channel, specific technical solution is as follows:
A kind of Ka band dual channel duplexer suitable for multi-antenna array, it is characterised in that including main casing, upper cover plate and under
Cover board, the main casing are provided with upper transmission channel close to the side of upper cover plate, and the side close to lower cover plate is provided with lower transmission
Channel is provided with demarcation plate between the upper transmission channel and lower transmission channel,
The side wall of the main casing opens up the common end there are two the public port of upper transmission channel side by side and lower transmission channel
Mouthful, the public port of the public port of the upper transmission channel and lower transmission channel is located at the two sides of demarcation plate, it is described on
The public port of transmission channel and upper transmission channel penetrate through, and the public port of the lower transmission channel and lower transmission channel penetrate through；
The diagonal line of the public port of the upper transmission channel be provided opposite to upper transmission channel low pass port and upper transmission
The high pass port in channel is provided with upload between the low pass port of upper transmission channel and the high pass port of upper transmission channel
Defeated channel partition wall, the upper transmission channel partition wall extend close to the public port of transmission channel；
The diagonal line of the public port of the lower transmission channel be provided opposite to lower transmission channel low pass port and lower transmission
The high pass port in channel is provided with down between the low pass port of lower transmission channel and the high pass port of lower transmission channel and passes
Defeated channel partition wall, the lower transmission channel partition wall extend close to the public port of lower transmission channel.
The public port of the upper transmission channel and the public port of lower transmission channel are all made of the non-tag splice of narrow side compression
Mouth and non-standard flange, the thickness direction along main casing are arranged side by side.
The public port of the upper transmission channel passes through H-T connector and the low pass port and upload that connect transmission channel
The high pass port in defeated channel, the public port of lower transmission channel by the low pass port of H-T connector and lower transmission channel and
The high pass port of lower transmission channel, upper transmission channel and lower transmission channel are all made of H facial mask chip architecture, and are compressed using narrow side
Nonstandard waveguide chamber size.
The low pass port of upper transmission channel, the high pass port of upper transmission channel, lower transmission channel low pass port
Standard WR28 Waveguide interface and non-standard flange are all made of with the high pass port of lower transmission channel.
The public port two-stage step of transmission channel is provided in the public port of the upper transmission channel, upper transmission is logical
Public port step of the public port two-stage step in road from upper transmission channel towards upper transmission channel increases；
Be provided with the public port two-stage step of lower transmission channel in the public port of lower transmission channel, lower transmission channel it is public
Public port step of the port two-stage step from lower transmission channel towards lower transmission channel increases；
The following port two-stage step of transmission channel is provided in the low pass port of upper transmission channel, upper transmission channel
Following port two-stage step is increased from the low pass port of upper transmission channel towards step in upper transmission channel；
The top port two-stage step of transmission channel is provided in the high pass port of upper transmission channel；Upper transmission channel
Top port two-stage step is increased from the high pass port of upper transmission channel towards step in upper transmission channel；
The following port two-stage step of lower transmission channel is provided in the low pass port of lower transmission channel；Lower transmission channel
Following port two-stage step is increased from the low pass port of lower transmission channel towards step in lower transmission channel；
The top port two-stage step of lower transmission channel is provided in the high pass port of lower transmission channel；Lower transmission channel
The high pass port of transmission channel is increased towards step in lower transmission channel under the port two-stage step of top.
The upper transmission channel partition wall is logical at upper transmission channel lowpass band coupler and upper transmission by upper transmission channel segmentation
Road upper passband coupler is offered between the side wall of the main casing and upper transmission channel lowpass band coupler and is transmitted on several
The lower passband tuning screw hole in channel, offers several between the side wall of the main casing and upper transmission channel upper passband coupler
The upper passband tuning screw hole of a upper transmission channel；
Lower transmission channel is divided into lower transmission channel lower passband coupler and lower transmission channel high by the lower transmission channel partition wall
Passband coupler offers several lower transmission channels between the side wall of the main casing and lower transmission channel lower passband coupler
Lower passband tuning screw hole, offered under several between the side wall of the main casing and lower transmission channel upper passband coupler
The upper passband tuning screw hole of transmission channel.
The beneficial effects of the present invention are:
The invention proposes a kind of Ka band duplexer, the duplexer is comprehensive using back to back structure, the nonstandard wave of compressed dimension
Mouth and H facial mask piece coupled structure are led, the duplexer for realizing two channels in a limited space is integrated, can be achieved at the same time two
Common end and four corresponding channel outputs, total thickness are only 10.8mm, and carry out channel expansion with can be convenient
It opens up to adapt to the application requirement of large scale array.
Detailed description of the invention
Fig. 1 is the structure composition at positive visual angle of the invention；
Fig. 2 is the structure composition at back side visual angle of the invention；
Fig. 3 is each port position front visual angle schematic diagram of the invention；
Fig. 4 is each port position back side visual angle schematic diagram of the invention；
Fig. 5, Fig. 6 are the 16 double-channel duplex device assembly schematic diagrames as composed by 8 groups of duplexers of the invention；
Fig. 7 is single channel lower passband performance curve of the invention；
Fig. 8 is single channel upper passband performance curve of the invention；
Reference signs list:
1-main casing,
2-upper cover plates,
3-lower cover plates,
4-upper transmission channels,
4-1-goes up the public port of transmission channel,
4-2-goes up the low pass port of transmission channel,
4-3-goes up the high pass port of transmission channel,
5-lower transmission channels,
The public port of the lower transmission channel of 5-1-,
The low pass port of the lower transmission channel of 5-2-,
The high pass port of the lower transmission channel of 5-3-,
6-1-goes up the public port two-stage step of transmission channel,
The public port two-stage step of the lower transmission channel of 6-2-,
6-3-goes up the following port two-stage step of transmission channel
6-4-goes up the top port two-stage step of transmission channel
The following port two-stage step of the lower transmission channel of 6-5-
The top port two-stage step of the lower transmission channel of 6-6-
7-1-goes up the lower passband tuning screw hole of transmission channel,
7-2-goes up the upper passband tuning screw hole of transmission channel,
The lower passband tuning screw hole of the lower transmission channel of 8-1-,
The upper passband tuning screw hole of the lower transmission channel of 8-2-,
9-upper transmission channel partition walls,
10-lower transmission channel partition walls.
Specific embodiment
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated.It should be understood that following specific embodiments are only
For illustrating the present invention rather than limiting the scope of the invention.
In conjunction with Fig. 1-6, the Ka band dual channel duplexer suitable for multi-antenna array of the invention, including main casing 1, on
Cover board 2 and lower cover plate 3, the main casing 1 are provided with upper transmission channel 4 close to the side of upper cover plate 2, close to the one of lower cover plate 3
Side is provided with lower transmission channel 5, is provided with demarcation plate between the upper transmission channel 4 and lower transmission channel 5,
The side wall of the main casing 1 opens up the public affairs there are two the public port 4-1 of upper transmission channel side by side and lower transmission channel
Port 5-1 altogether, the public port 4-1 of the upper transmission channel and the public port 5-1 of lower transmission channel are located at demarcation plate
Two sides, the public port 4-1 of the upper transmission channel and upper transmission channel 4 penetrate through, the public port of the lower transmission channel
5-1 and lower transmission channel 5 penetrate through；
The diagonal line of the public port 4-1 of the upper transmission channel be provided opposite to upper transmission channel low pass port 4-2 and
The high pass port 4-3 of upper transmission channel, the low pass port 4-2 of upper transmission channel and the high pass port 4- of upper transmission channel
Transmission channel partition wall 9 is provided between 3, the upper transmission channel partition wall extends close to the public port 4- of transmission channel
1；
The diagonal line of the public port 5-1 of the lower transmission channel be provided opposite to lower transmission channel low pass port 5-2 and
The high pass port 5- of high pass the port 5-3, the low pass port 5-2 of lower transmission channel and lower transmission channel of lower transmission channel
Lower transmission channel partition wall 10 is provided between 3, the lower transmission channel partition wall 10 extends close to the common end of lower transmission channel
Mouth 5-1.
The public port 4-1 of the upper transmission channel and public port 5-1 of lower transmission channel is all made of narrow side compression
Nonstandard interface and non-standard flange, the thickness direction along main casing 1 are arranged side by side.
The public port 4-1 of the upper transmission channel passes through H-T connector and the low pass port 4-2 that connect transmission channel
Pass through H-T connector and lower transmission channel with the public port 5-1 of the high pass port 4-3 of upper transmission channel, lower transmission channel
The high pass port 5-3 of low pass port 5-2 and lower transmission channel, upper transmission channel 4 and lower transmission channel 5 are all made of H facial mask
Chip architecture, and using the nonstandard waveguide chamber size of narrow side compression.
The low pass port 4-2 of upper transmission channel, the high pass port 4-3 of upper transmission channel, lower transmission channel low pass
Port 5-2 and the high pass port 5-3 of lower transmission channel are all made of standard WR28 Waveguide interface and non-standard flange.
The public port two-stage step 6-1 of transmission channel is provided in the public port 4-1 of the upper transmission channel, on
Public port 4-1 step liter of the public port two-stage step 6-1 of transmission channel from upper transmission channel 4 towards upper transmission channel
It is high；
The public port two-stage step 6-2 of lower transmission channel, lower transmission channel are provided in the public port 5-1 of lower transmission channel
Public port 5-1 step of the public port two-stage step 6-2 from lower transmission channel towards lower transmission channel increase；
The following port two-stage step 6-3 of transmission channel, upper transmission are provided in the low pass port 4-2 of upper transmission channel
The following port two-stage step 6-3 in channel is from the low pass port 4-2 of upper transmission channel towards step liter in upper transmission channel 4
It is high；
The top port two-stage step 6-4 of transmission channel is provided in the high pass port 4-3 of upper transmission channel；Upper transmission
The top port two-stage step 6-4 in channel is from the high pass port 4-3 of upper transmission channel towards step liter in upper transmission channel 4
It is high；
The following port two-stage step 6-5 of lower transmission channel is provided in the low pass port 5-2 of lower transmission channel；Lower transmission
The following port two-stage step 6-5 in channel is from the low pass port 5-2 of lower transmission channel towards step liter in lower transmission channel 5
It is high；
The top port two-stage step 6-6 of lower transmission channel is provided in the high pass port 5-3 of lower transmission channel；Lower transmission
The high pass port 5-3 of transmission channel is towards step liter in lower transmission channel 5 under the top port two-stage step 6-6 in channel
It is high.
Upper transmission channel 4 is divided into upper transmission channel lowpass band coupler and upper transmission by the upper transmission channel partition wall 9
Channel upper passband coupler offers several uploads between the side wall of the main casing and upper transmission channel lowpass band coupler
The lower passband tuning screw hole 7-1 in defeated channel, opens up between the side wall of the main casing and upper transmission channel upper passband coupler
There is the upper passband tuning screw hole 7-2 of transmission channel on several；
Lower transmission channel 5 is divided into lower transmission channel lower passband coupler and lower transmission channel by the lower transmission channel partition wall 10
It is logical to offer several lower transmission for upper passband coupler between the side wall of the main casing and lower transmission channel lower passband coupler
The lower passband tuning screw hole 8-1 in road, if being offered between the side wall of the main casing and lower transmission channel upper passband coupler
The upper passband tuning screw hole 8-2 of dry lower transmission channel.
A specific embodiment of illustrating below illustrates the present invention:
The present invention realizes one and is integrated with the Ka band duplexer in two channels, and technical indicator is as follows:
(1) upper passband frequency range: 33.5-35.5GHz
(2) lower passband frequency range: 36.0-36.7GHz
(3) Insertion Loss in upper passband band: < 2.0dB
(4) return loss in upper passband band: < -15dB
(5) Insertion Loss in lower passband band: < 2.0dB
(6) return loss in lower passband band: < -15dB
(7) high lower passband isolation: > 20dB 36.0-36.7GHz
>20dB@33.5-35.5GHz
The double-channel duplex device proposed is process using LF21 type rustproof aluminum alloy, outer dimension be 82mm × 28mm ×
10.8mm。
Two common ends use nonstandard waveguide mouth, having a size of 7.12mm × 2mm, center spacing 5.5mm；
Two branch ends use standard waveguide mouth, having a size of 7.12mm × 3.56mm；
Upper passband uses 6 chamber coupled structures, and 6 cavity depths are 2.78mm, and width is 7.12mm, and length is respectively
4.15mm, 4.74mm, 4.83mm, 4.83mm, 4.75mm, 4.10mm, diaphragm thickness 1mm；
Lower passband uses 4 chamber coupled structures, and cavity depth 2.78mm, 4 cavity depths are 2.78mm, and width is
7.12mm, length are respectively 5.38mm, 5.77mm, 5.77mm, 5.42mm, diaphragm thickness 1mm；
Upper passband tuning screw uses 6 M1.6 cylindrical screws；
Lower passband tuning screw uses 4 M1.6 cylindrical screws；
The height of common end two-stage step is respectively 0.36mm and 0.42mm；
The height of branch end two-stage step is respectively 0.37mm and 0.41mm；
Two channels use back to back structure, intermediate bulkhead thickness 2.24mm；
Based on the duplexer that above structure parameter is realized, the S parameter performance curve of high lower passband is as shown in Figure 7, Figure 8.From
Performance curve is visible: the frequency range of lower passband covers 33.5-35.5GHz, is less than 2dB with interior Insertion Loss, with interior return loss <-
15dB inhibits to be greater than 20dB to the upper passband of 36.0-36.7GHz；The frequency range of upper passband covers 36.0-36.7GHz, in
Insertion Loss is less than 2dB, with interior return loss < -15dB, inhibits to be greater than 20dB to the lower passband of 33.5-35.5GHz.As a result meet and set
Meter is expected.
The technical means disclosed in the embodiments of the present invention is not limited to the technical means disclosed in the above technical means, and further includes
Technical solution consisting of any combination of the above technical features.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (6)
1. a kind of Ka band dual channel duplexer suitable for multi-antenna array, it is characterised in that including main casing (1), upper cover plate
(2) and lower cover plate (3), the main casing (1) are provided with transmission channel (4) close to the side of upper cover plate (2), close to lower cover plate
(3) side is provided with lower transmission channel (5), is provided with separation between the upper transmission channel (4) and lower transmission channel (5)
Plate,
The side wall of the main casing (1) opens up that there are two the public port (4-1) of upper transmission channel side by side and lower transmission channels
Public port (5-1), the public port (5-1) of the public port (4-1) of the upper transmission channel and lower transmission channel is respectively
Positioned at the two sides of demarcation plate, the public port (4-1) of the upper transmission channel and upper transmission channel (4) are penetrated through, the lower transmission
The public port (5-1) in channel and lower transmission channel (5) penetrate through；
The diagonal line of the public port (4-1) of the upper transmission channel is provided opposite to the low pass port (4- of upper transmission channel
2) and the high pass port (4-3) of upper transmission channel, the high pass of low pass port (4-2) and upper transmission channel of upper transmission channel
It is provided between port (4-3) transmission channel partition wall (9), the upper transmission channel partition wall extends close to transmission channel
Public port (4-1)；
The diagonal line of the public port (5-1) of the lower transmission channel is provided opposite to the low pass port (5- of lower transmission channel
And the high pass port (5-3) of lower transmission channel, the low pass port (5-2) of lower transmission channel and the high pass of lower transmission channel 2)
Lower transmission channel partition wall (10) is provided between port (5-3), the lower transmission channel partition wall (10), which extends close to down, to be passed
The public port (5-1) in defeated channel.
2. a kind of Ka band dual channel duplexer suitable for multi-antenna array according to claim 1, it is characterised in that
The public port (4-1) of the upper transmission channel and the public port (5-1) of lower transmission channel are all made of the nonstandard of narrow side compression
Interface and non-standard flange, the thickness direction along main casing (1) are arranged side by side.
3. a kind of Ka band dual channel duplexer suitable for multi-antenna array according to claim 1, it is characterised in that
The public port (4-1) of the upper transmission channel passes through H-T connector and the low pass port (4-2) that connect transmission channel and upper
The public port (5-1) of the high pass port (4-3) of transmission channel, lower transmission channel passes through H-T connector and lower transmission channel
The high pass port (5-3) of low pass port (5-2) and lower transmission channel, upper transmission channel (4) and lower transmission channel (5) are adopted
With H facial mask chip architecture, and using the nonstandard waveguide chamber size of narrow side compression.
4. a kind of Ka band dual channel duplexer suitable for multi-antenna array according to claim 1, it is characterised in that
The low pass port (4-2) of upper transmission channel, the high pass port (4-3) of upper transmission channel, lower transmission channel low pass band edge
Mouth (5-2) and the high pass port (5-3) of lower transmission channel are all made of standard WR28 Waveguide interface and non-standard flange.
5. a kind of Ka band dual channel duplexer suitable for multi-antenna array according to claim 1, it is characterised in that
The public port two-stage step (6-1) of transmission channel, upper transmission are provided in the public port (4-1) of the upper transmission channel
Public port (4-1) the step liter of the public port two-stage step (6-1) in channel from upper transmission channel (4) towards upper transmission channel
It is high；
The public port two-stage step (6-2) of lower transmission channel, lower transmission are provided in the public port (5-1) of lower transmission channel
Public port (5-1) step of the public port two-stage step (6-2) in channel from lower transmission channel towards lower transmission channel increases；
The following port two-stage step (6-3) of transmission channel is provided in the low pass port (4-2) of upper transmission channel, on
The following port two-stage step (6-3) of transmission channel is from the low pass port (4-2) of upper transmission channel towards upper transmission channel
(4) step increases in；
The top port two-stage step (6-4) of transmission channel is provided in the high pass port (4-3) of upper transmission channel；On
The top port two-stage step (6-4) of transmission channel is from the high pass port (4-3) of upper transmission channel towards upper transmission channel
(4) step increases in；
The following port two-stage step (6-5) of lower transmission channel is provided in the low pass port (5-2) of lower transmission channel；Under
The following port two-stage step (6-5) of transmission channel is from the low pass port (5-2) of lower transmission channel towards lower transmission channel
(5) step increases in；
The top port two-stage step (6-6) of lower transmission channel is provided in the high pass port (5-3) of lower transmission channel；Under
The high pass port (5-3) of transmission channel is towards lower transmission channel (5) under the top port two-stage step (6-6) of transmission channel
Middle step increases.
6. a kind of Ka band dual channel duplexer suitable for multi-antenna array according to claim 1, it is characterised in that
Upper transmission channel (4) is divided into upper transmission channel lowpass band coupler and upper transmission channel by the upper transmission channel partition wall (9)
Upper passband coupler offers to transmit on several and lead between the side wall of the main casing and upper transmission channel lowpass band coupler
The lower passband tuning screw hole (7-1) in road, offers between the side wall of the main casing and upper transmission channel upper passband coupler
The upper passband tuning screw hole (7-2) of transmission channel on several；
Lower transmission channel (5) is divided into lower transmission channel lower passband coupler and lower transmission by the lower transmission channel partition wall (10)
Channel upper passband coupler is offered between the side wall of the main casing and lower transmission channel lower passband coupler and is passed under several
The lower passband tuning screw hole (8-1) in defeated channel is opened between the side wall of the main casing and lower transmission channel upper passband coupler
Upper passband tuning screw hole (8-2) equipped with several lower transmission channels.
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| CN201810729643.8A CN109066026B (en) | 2018-07-05 | 2018-07-05 | Ka-band double-channel duplexer applicable to multi-antenna array |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113823886A (en) * | 2021-09-13 | 2021-12-21 | 南京信息工程大学 | Broadband duplexer suitable for full W wave band |
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