CN209963193U - Interdigital filter - Google Patents
Interdigital filter Download PDFInfo
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- CN209963193U CN209963193U CN201921013130.3U CN201921013130U CN209963193U CN 209963193 U CN209963193 U CN 209963193U CN 201921013130 U CN201921013130 U CN 201921013130U CN 209963193 U CN209963193 U CN 209963193U
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Abstract
The utility model discloses an interdigital filter, its characterized in that: the resonance device comprises a cavity, a plurality of mounting holes are formed in the side part of the cavity, SMA joints are arranged on two sides outside the cavity, 2 rows of resonance rods which are arranged in a staggered mode are arranged in the cavity, the number of each row of resonance rods is 5, the resonance rods at two ends are respectively a resonance rod I and a resonance rod III, 8 resonance rods II are arranged between the resonance rods I and the resonance rods III, tuning rods are arranged on the side part of the cavity, corresponding to the positions above the resonance rods, the top of the cavity is provided with a cover body, and the cover body is fixed on the side wall of; taps are arranged among the resonance rod I, the resonance rod III and the SMA connector. The utility model discloses set up 10 resonance bars and divide into 2 rows staggered arrangement, reach the coupling that needs through the distance of adjusting adjacent resonance bar.
Description
Technical Field
The utility model relates to a wireless communication equipment field especially relates to an interdigital filter.
Background
The existing filter often has the problems of single structure and large volume.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: to prior art not enough and defect, the utility model provides an interdigital filter sets up 10 resonance bars and divide into 2 rows staggered arrangement, reaches the coupling that needs through the distance of adjusting adjacent resonance bar.
The technical scheme is as follows: the utility model discloses an interdigital filter, its characterized in that: the resonance device comprises a cavity, a plurality of mounting holes are formed in the side part of the cavity, SMA joints are arranged on two sides outside the cavity, 2 rows of resonance rods which are arranged in a staggered mode are arranged in the cavity, the number of each row of resonance rods is 5, the resonance rods at two ends are respectively a resonance rod I and a resonance rod III, 8 resonance rods II are arranged between the resonance rods I and the resonance rods III, tuning rods are arranged on the side part of the cavity, corresponding to the positions above the resonance rods, the top of the cavity is provided with a cover body, and the cover body is fixed on the side wall of; and taps are arranged among the resonance rod I, the resonance rod III and the SMA connector.
Wherein, the length of the cavity is 64mm, the width is 18mm, and the height is 6 mm.
Wherein, the diameter of the mounting hole is 2.2 mm.
Wherein, the diameter of the resonance rod I and the resonance rod III is 3mm, and the length is 9.01 mm.
Wherein, the diameter of resonance pole II is 2mm, and length is 8.14 mm.
Wherein, the screw is an M2 countersunk head screw.
Has the advantages that: compared with the prior art, the utility model has the following apparent advantage: the utility model discloses set up 10 resonance bars and divide into 2 rows staggered arrangement, reach the coupling that needs through the distance of adjusting adjacent resonance bar, accomplish minimum volume under the condition that satisfies the index.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure, 1 is an SMA joint, 2 is a mounting hole, 3 is a resonance rod I, 4 is a resonance rod II, 5 is a resonance rod III, 6 is a tuning rod, 7 is a cover plate, 8 is a screw and 9 is a tap.
Detailed Description
The technical solution of the present invention will be further described with reference to the accompanying drawings and the detailed description.
The utility model discloses an interdigital filter, including the cavity and be equipped with a plurality of mounting hole 2 at the cavity lateral part, the outside both sides of cavity are equipped with SMA and connect 1, be equipped with 2 rows staggered arrangement's resonance bar in the cavity and the quantity of each row resonance bar is 5, wherein the resonance bar at both ends is resonance bar I3 and resonance bar III5 respectively and is equipped with 8 resonance bars II4 between resonance bar I3 and resonance bar III5 and the cavity lateral part that corresponds the position above the resonance bar all is equipped with tuning rod 6, the cavity top is equipped with lid 7 and lid 7 is fixed at the cavity lateral wall through screw 8; a tap 9 is arranged between the resonance rod I3, the resonance rod III5 and the SMA joint 1. Wherein the length of the cavity is 64mm, the width is 18mm, and the height is 6 mm; the diameter of the mounting hole 2 is 2.2 mm; the diameters of the resonance rod I3 and the resonance rod III5 are 3mm, and the lengths of the resonance rod I3 and the resonance rod III5 are 9.01 mm; the diameter of the resonance rod II4 is 2mm, and the length is 8.14 mm; the screw 8 is an M2 countersunk head screw.
During the use, will take a percentage 9 welding to resonance pole I3 and resonance pole III5 at both ends on, be equipped with 8 resonance poles II4 between resonance pole I3 and resonance pole III5, 10 resonance poles divide into 2 rows staggered arrangements, reach required coupling through adjusting the distance between the adjacent resonance pole to corresponding position sets up tuning rod 6 above 10 resonance poles, is used for the tuning, reaches required condition.
Claims (6)
1. Interdigital filter, its characterized in that: the resonance device comprises a cavity, a plurality of mounting holes (2) are formed in the side part of the cavity, SMA joints (1) are arranged on two sides outside the cavity, 2 rows of resonance rods which are arranged in a staggered mode are arranged in the cavity, the number of each row of resonance rods is 5, the resonance rods at two ends are respectively a resonance rod I (3) and a resonance rod III (5), 8 resonance rods II (4) are arranged between the resonance rods I (3) and the resonance rods III (5), tuning rods (6) are arranged on the side part of the cavity, corresponding to the positions above the resonance rods, the top of the cavity is provided with a cover body (7), and the cover body (7) is fixed on the side wall of the cavity through; and taps (9) are arranged between the resonance rod I (3), the resonance rod III (5) and the SMA connector (1).
2. The interdigital filter of claim 1, wherein: the length of cavity be 64mm, the width be 18mm, the height be 6 mm.
3. The interdigital filter of claim 1, wherein: the diameter of the mounting hole (2) is 2.2 mm.
4. The interdigital filter of claim 1, wherein: the diameters of the resonance rod I (3) and the resonance rod III (5) are 3mm, and the lengths of the resonance rod I (3) and the resonance rod III (5) are 9.01 mm.
5. The interdigital filter of claim 1, wherein: the diameter of the resonance rod II (4) is 2mm, and the length of the resonance rod II is 8.14 mm.
6. The interdigital filter of claim 1, wherein: the screw (8) is an M2 countersunk head screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921013130.3U CN209963193U (en) | 2019-07-02 | 2019-07-02 | Interdigital filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921013130.3U CN209963193U (en) | 2019-07-02 | 2019-07-02 | Interdigital filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209963193U true CN209963193U (en) | 2020-01-17 |
Family
ID=69248682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921013130.3U Active CN209963193U (en) | 2019-07-02 | 2019-07-02 | Interdigital filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209963193U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115000656A (en) * | 2022-04-13 | 2022-09-02 | 华南理工大学 | Adjustable filter and adjustable duplexer based on coaxial cavity resonator |
-
2019
- 2019-07-02 CN CN201921013130.3U patent/CN209963193U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115000656A (en) * | 2022-04-13 | 2022-09-02 | 华南理工大学 | Adjustable filter and adjustable duplexer based on coaxial cavity resonator |
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