CN109860965A - Highly selective miniaturization pectination and interdigital mixing cavity configuration duplexer - Google Patents
Highly selective miniaturization pectination and interdigital mixing cavity configuration duplexer Download PDFInfo
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- CN109860965A CN109860965A CN201910270037.9A CN201910270037A CN109860965A CN 109860965 A CN109860965 A CN 109860965A CN 201910270037 A CN201910270037 A CN 201910270037A CN 109860965 A CN109860965 A CN 109860965A
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- band filter
- pectination
- output port
- duplexer
- miniaturization
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Abstract
The present invention discloses a kind of highly selective miniaturization pectination and interdigital mixing cavity configuration duplexer includes high frequency input/output port, low frequency input/output port and antenna opening input/output terminal, it is high-frequency band filter between the high frequency input/output port and the antenna opening input/output port, is low band filter between the low frequency input/output port and the antenna opening input/output port；The high-frequency band filter is connected with the low band filter by public resonant cavity；The access of the high-frequency band filter includes the first electric coupling structure, the second electric coupling structure and at least one magnetic coupling arrangement composition；The low band filter includes at least one magnetic coupling arrangement.Duplexer of the invention has small in size, at low cost, light-weight, and the beneficial effect that performance is good.
Description
Technical field
The present invention relates to mobile communication technology field, in particular to a kind of highly selective miniaturization pectination and interdigital mixing chamber
Structure duplexer.
Background technique
Duplexer is the key fitment in communication system, and effect is will to emit and receive signal to be isolated, and guarantees to receive
It can be worked normally simultaneously with transmitting.It is made of the filter of two groups of different frequencies, and the machine transmitting signal is avoided to be transferred to
Receiver.Currently, communication system is generally all to miniaturization, the duplexer of miniaturization is always research hotspot.Meanwhile frequency spectrum
Resource is increasingly crowded, and just to the selectivity of filter or duplexer, more stringent requirements are proposed for this.
In consideration of it, needing a highly selective miniaturization pectination based on requirements above and interdigital mixing cavity configuration duplex
Device.
Summary of the invention
In order to solve above-mentioned problems of the prior art, the present invention provides a kind of highly selective miniaturization pectination with
Interdigital mixing cavity configuration duplexer.
The technical proposal for solving the technical problem of the invention is as follows:
The highly selective miniaturization pectination of one kind and interdigital mixing cavity configuration duplexer, the pectination and interdigital mixing cavity configuration
Duplexer includes high frequency input/output port, low frequency input/output port and antenna opening input/output port, and the high frequency is defeated
Enter between output port and the antenna opening input/output port for high-frequency band filter, the low frequency input/output port and institute
It states between combining input/output port as low band filter；
The high-frequency band filter is connected with the low band filter by public resonant cavity；
The access of the high-frequency band filter includes the first electric coupling structure, the second electric coupling structure and at least one magnetic
Coupled structure；
The low band filter includes at least one magnetic coupling arrangement.
In some embodiments, the resonator of the high-frequency band filter and the low band filter is stepped impedance
Structure.
In some embodiments, the resonator of the high-frequency band filter and the low band filter passes through coupling muscle
It is connected.
In some embodiments, change the distance between first electric coupling structure and second electric coupling structure and electricity
The size for holding loading disc, responds first electric coupling structure with second electric coupling structure, makes the high band
Filter response realizes multiple transmission zeros in low side.
In some embodiments, change the distance between magnetic coupling arrangement of the low band filter and capacitive load disk
Size, so that the low band filter has multiple transmission zeros high-end.
In some embodiments, the pectination and interdigital mixing cavity configuration duplexer further include several tuning screws.
In addition, the present invention also provides a kind of duplexer, including above-mentioned highly selective miniaturization pectination and interdigital mixing chamber
Structure duplexer.
The beneficial effects of the present invention are: this duplexer is compared with traditional coaxial cavity duplexer, the about traditional volume of volume
1/2, cost is insufficient traditional 1/2, and weight is insufficient traditional 1/3, while index can meet, or even individual indexs are superior to
Traditional index.It is largely used in antenna, is greatly promoted in the superior situation of volume Small Indicators to antenna performance and index at present.
Detailed description of the invention
Fig. 1 is that the highly selective miniaturization pectination of the present invention and the interdigital structure for mixing cavity configuration duplexer one embodiment are shown
It is intended to；
Fig. 2 is the simulation result of the highly selective miniaturization pectination of the present invention and interdigital mixing cavity configuration duplexer.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
Description and claims of this specification and term " first ", " second ", " third " " in above-mentioned attached drawing
The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage
The data that solution uses in this way are interchangeable under appropriate circumstances, so that the embodiments described herein can be in addition to illustrating herein
Or the sequence other than the content of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units need not limit
In step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, produce
The other step or units of product or equipment inherently.
Fig. 1 and Fig. 2 respectively illustrates the knot of the highly selective miniaturization pectination of the present invention and interdigital mixing cavity configuration duplexer
Structure schematic diagram and simulation result diagram.
Referring to FIG. 1, the highly selective miniaturization pectination provided in one embodiment of the present of invention and interdigital mixing chamber
The structural schematic diagram of structure duplexer.
In the present embodiment, pectination and interdigital mixing cavity configuration duplexer include that high frequency input/output port 3, low frequency input are defeated
Exit port 5 and antenna opening input/output port 4, the high frequency input/output port 3 and the antenna opening input/output port
It is provided with high-frequency band filter between 4, is set between the low frequency input/output port 5 and the antenna opening input/output port 4
It is equipped with low band filter.
The high-frequency band filter is connected with the low band filter by public resonant cavity 2；
The access of the high-frequency band filter include the first electric coupling structure 6, the second electric coupling structure 6 and at least one
Magnetic coupling arrangement.
The low band filter includes at least one magnetic coupling arrangement.High-frequency band filter and low band filter are distinguished
It is made of resonant cavity, resonant rod and tuning screw.
Change the distance between two electric coupling structures 6 (the first electric coupling structure and second electric coupling structure) and electricity
The size for holding loading disc, responds first electric coupling structure with second electric coupling structure, makes the high band
Filter response realizes multiple transmission zeros in low side, and then increases selectivity.
Using the size for changing the distance between resonator and capacitive load disk, make in low band filter access to be all magnetic
Coupled structure, this kind of structure naturally make low band filter response have multiple transmission zeros high-end.
Length by amendment debugging screw includes several tuning screws 1, and straightener adds bring error.Adjacent resonators
Between by coupling muscle be connected (such as 7), to increase magnetic coupling amount.
In the present embodiment, each resonator is stepped impedance structure (SIR structure).
The beneficial effects of the present invention are:
The present invention compares traditional coaxial duplexer, and the volume and weight of the miniaturized duplexer is much smaller, can facilitate
Be built in antenna.In addition, comparing traditional duplexer, which has used less cavity number to realize more
Transmission zero substantially increases the selectivity of duplexer and reduces the insertion loss of duplexer, promoted duplexer inhibition and
Isolation and reduction intermodulation product.
The present invention also provides a kind of duplexers, double including above-mentioned highly selective miniaturization pectination and interdigital mixing cavity configuration
Work device.
The above described specific embodiments of the present invention are not intended to limit the scope of the present invention..Any basis
Any other various changes and modifications made by technical concept of the invention should be included in the guarantor of the claims in the present invention
It protects in range.
Claims (7)
1. a kind of highly selective miniaturization pectination and interdigital mixing cavity configuration duplexer, which is characterized in that the pectination and interdigital
Mixing cavity configuration duplexer includes high frequency input/output port, low frequency input/output port and antenna opening input/output port,
It is high-frequency band filter between the high frequency input/output port and the antenna opening input/output port, the low frequency input is defeated
It is low band filter between exit port and the antenna opening input/output port；
The high-frequency band filter is connected with the low band filter by public resonant cavity；
The access of the high-frequency band filter includes the first electric coupling structure, the second electric coupling structure and at least one magnetic coupling
Structure；
The low band filter includes at least one magnetic coupling arrangement.
2. highly selective miniaturization pectination as described in claim 1 and interdigital mixing cavity configuration duplexer, which is characterized in that institute
The resonator for stating high-frequency band filter and the low band filter is stepped impedance structure.
3. highly selective miniaturization pectination as claimed in claim 2 and interdigital mixing cavity configuration duplexer, which is characterized in that institute
The resonator for stating high-frequency band filter and the low band filter passes through coupling muscle and is connected.
4. highly selective miniaturization pectination as claimed in claim 2 and interdigital mixing cavity configuration duplexer, which is characterized in that change
The size for becoming the distance between first electric coupling structure and second electric coupling structure and capacitive load disk makes described
One electric coupling structure is responded with second electric coupling structure, realizes the high-frequency band filter response in low side multiple
Transmission zero.
5. highly selective miniaturization pectination as claimed in claim 4 and interdigital mixing cavity configuration duplexer, which is characterized in that change
Become the size of the distance between magnetic coupling arrangement of the low band filter He capacitive load disk, so that the low-frequency range filters
Device has multiple transmission zeros high-end.
6. highly selective miniaturization pectination as described in claim 1 and interdigital mixing cavity configuration duplexer, which is characterized in that institute
Stating pectination and interdigital mixing cavity configuration duplexer further includes several tuning screws.
7. a kind of duplexer, which is characterized in that including highly selective miniaturization pectination as claimed in any one of claims 1 to 6 and
Interdigital mixing cavity configuration duplexer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910270037.9A CN109860965A (en) | 2019-04-04 | 2019-04-04 | Highly selective miniaturization pectination and interdigital mixing cavity configuration duplexer |
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| CN201910270037.9A CN109860965A (en) | 2019-04-04 | 2019-04-04 | Highly selective miniaturization pectination and interdigital mixing cavity configuration duplexer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112787057A (en) * | 2020-12-30 | 2021-05-11 | 上海阖煦微波技术有限公司 | Novel E-Band waveguide duplexer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130285765A1 (en) * | 2011-12-19 | 2013-10-31 | Powerwave Technologies, Inc. | Broad band diplexer using suspended strip-line capacitor technology |
| CN208352501U (en) * | 2018-05-18 | 2019-01-08 | 成都泰格微波技术股份有限公司 | A kind of highly selective miniaturized duplexer |
| CN209447995U (en) * | 2019-04-04 | 2019-09-27 | 深圳市金科泰通信设备有限公司 | Highly selective miniaturization pectination and interdigital mixing cavity configuration duplexer |
-
2019
- 2019-04-04 CN CN201910270037.9A patent/CN109860965A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130285765A1 (en) * | 2011-12-19 | 2013-10-31 | Powerwave Technologies, Inc. | Broad band diplexer using suspended strip-line capacitor technology |
| CN208352501U (en) * | 2018-05-18 | 2019-01-08 | 成都泰格微波技术股份有限公司 | A kind of highly selective miniaturized duplexer |
| CN209447995U (en) * | 2019-04-04 | 2019-09-27 | 深圳市金科泰通信设备有限公司 | Highly selective miniaturization pectination and interdigital mixing cavity configuration duplexer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112787057A (en) * | 2020-12-30 | 2021-05-11 | 上海阖煦微波技术有限公司 | Novel E-Band waveguide duplexer |
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