CN204361223U - Wideband microstrip filter - Google Patents
Wideband microstrip filter Download PDFInfo
- Publication number
- CN204361223U CN204361223U CN201520008047.2U CN201520008047U CN204361223U CN 204361223 U CN204361223 U CN 204361223U CN 201520008047 U CN201520008047 U CN 201520008047U CN 204361223 U CN204361223 U CN 204361223U
- Authority
- CN
- China
- Prior art keywords
- line
- dumbbell shape
- shape band
- microstrip
- band line
- 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.)
- Expired - Fee Related
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Abstract
The utility model is wideband microstrip filter, and solving oneself has that microstrip filter volume is large, cost is high, the problem of relative bandwidth in 50%.SMA input port (1) is connected with the one 50 Ω microstrip line (5), one 50 Ω microstrip line is connected with the first dumbbell shape band line (3), first dumbbell shape band line is connected with the first earthing rod (4), first dumbbell shape band line is connected with the 2 50 Ω microstrip line (10), 2 50 Ω microstrip line is connected with the second dumbbell shape band line (6), second dumbbell shape band line is connected with the second earthing rod (8), second dumbbell shape band line is connected with the 3 50 Ω microstrip line (11), 3 50 Ω microstrip line (11) is connected with the 3rd dumbbell shape band line (7), 3rd dumbbell shape band line is connected with the 3rd earthing rod (9), 3rd dumbbell shape band line is connected with the 4 50 Ω microstrip line (12), 4 50 Ω microstrip line is connected with SMA output port (2).
Description
technical field:
The utility model is relevant with microstrip filter.
background technology:
The many employings of microstrip filter conventional are at present interdigital, the patten's design of hair clip, parallel coupled line, and such filter volume is large, cost is high, design relative bandwidth in 50%.Present company major part product all needs small size, ultra broadband, it is integrated to facilitate, and conventional method for designing can not meet the demands.
utility model content:
The purpose of this utility model is to provide that a kind of volume is little, cost is low, the wideband microstrip filter of failure rate is low, relative bandwidth.
The utility model is achieved in that
SMA input port 1 is connected with the one 50 Ω microstrip line 5, one 50 Ω microstrip line 5 is connected with the first dumbbell shape band line 3, first dumbbell shape band line 3 is connected with the first earthing rod 4, first dumbbell shape band line 3 is connected with the 2 50 Ω microstrip line 10, 2 50 Ω microstrip line 10 is connected with the second dumbbell shape band line 6, second dumbbell shape band line 6 is connected with the second earthing rod 8, second dumbbell shape band line 6 is connected with the 3 50 Ω microstrip line 11, 3 50 Ω microstrip line 11 is connected with the 3rd dumbbell shape band line 7, 3rd dumbbell shape band line 7 is connected with the 3rd earthing rod 9, 3rd dumbbell shape band line 7 is connected with the 4 50 Ω microstrip line 12, 4 50 Ω microstrip line 12 is connected with SMA output port 2.
The attainable beneficial effect of the utility model:
The utility model volume is little, opposite band is wide.Dumbbell shape band line forms electric capacity, and earthing rod and dumbbell shape band line are connected to form inductance, and by regulating filter frequency range the adjustment of dumbbell shape band line size, make filter assembling and setting all comparatively simple, the volume of relative like product also reduces a lot.And filter itself has wide band advantage, strengthens the market competitiveness.The utility model adopts common printed board process technology cost low, process technology matured product failure rate is low.
The technical indicator that the utility model realizes is as follows:
1. frequency: 2.8GHz ~ 8.7GHz (relative bandwidth: 102%);
2. standing wave :≤2;
3. Insertion Loss :≤1.5dB;
4. suppress: >=20dBDC ~ 0.5GHz.
accompanying drawing illustrates:
Fig. 1 is the utility model circuit theory diagrams.
embodiment:
SMA input port 1 is connected with the one 50 Ω microstrip line 5, one 50 Ω microstrip line 5 is connected with the first dumbbell shape band line 3, first dumbbell shape band line 3 is connected with the first earthing rod 4, first dumbbell shape band line 3 is connected with the 2 50 Ω microstrip line 10, 2 50 Ω microstrip line 10 is connected with the second dumbbell shape band line 6, second dumbbell shape band line 6 is connected with the second earthing rod 8, second dumbbell shape band line 6 is connected with the 3 50 Ω microstrip line 11, 3 50 Ω microstrip line 11 is connected with the 3rd dumbbell shape band line 7, 3rd dumbbell shape band line 7 is connected with the 3rd earthing rod 9, 3rd dumbbell shape band line 7 is connected with the 4 50 Ω microstrip line 12, 4 50 Ω microstrip line 12 is connected with SMA output port 2.
Claims (1)
1. wideband microstrip filter, it is characterized in that SMA input port (1) is connected with the one 50 Ω microstrip line (5), one 50 Ω microstrip line is connected with the first dumbbell shape band line (3), first dumbbell shape band line is connected with the first earthing rod (4), first dumbbell shape band line is connected with the 2 50 Ω microstrip line (10), 2 50 Ω microstrip line is connected with the second dumbbell shape band line (6), second dumbbell shape band line is connected with the second earthing rod (8), second dumbbell shape band line is connected with the 3 50 Ω microstrip line (11), 3 50 Ω microstrip line (11) is connected with the 3rd dumbbell shape band line (7), 3rd dumbbell shape band line is connected with the 3rd earthing rod (9), 3rd dumbbell shape band line is connected with the 4 50 Ω microstrip line (12), 4 50 Ω microstrip line is connected with SMA output port (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520008047.2U CN204361223U (en) | 2015-01-07 | 2015-01-07 | Wideband microstrip filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520008047.2U CN204361223U (en) | 2015-01-07 | 2015-01-07 | Wideband microstrip filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204361223U true CN204361223U (en) | 2015-05-27 |
Family
ID=53262675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520008047.2U Expired - Fee Related CN204361223U (en) | 2015-01-07 | 2015-01-07 | Wideband microstrip filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204361223U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299561A (en) * | 2016-09-12 | 2017-01-04 | 电子科技大学 | A kind of low pass filter utilizing split ring |
| CN107134615A (en) * | 2017-06-15 | 2017-09-05 | 中国人民解放军空军工程大学 | A kind of dual-passband suspended mictrostrip filter based on electric Meta Materials |
| CN108963400A (en) * | 2018-06-07 | 2018-12-07 | 中国电子科技集团公司第五十五研究所 | H-shaped mushroom ultra wide band common mode noise rejection circuit |
-
2015
- 2015-01-07 CN CN201520008047.2U patent/CN204361223U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299561A (en) * | 2016-09-12 | 2017-01-04 | 电子科技大学 | A kind of low pass filter utilizing split ring |
| CN107134615A (en) * | 2017-06-15 | 2017-09-05 | 中国人民解放军空军工程大学 | A kind of dual-passband suspended mictrostrip filter based on electric Meta Materials |
| CN107134615B (en) * | 2017-06-15 | 2019-08-09 | 中国人民解放军空军工程大学 | A kind of dual-passband suspended mictrostrip filter based on electric Meta Materials |
| CN108963400A (en) * | 2018-06-07 | 2018-12-07 | 中国电子科技集团公司第五十五研究所 | H-shaped mushroom ultra wide band common mode noise rejection circuit |
| CN108963400B (en) * | 2018-06-07 | 2020-04-07 | 中国电子科技集团公司第五十五研究所 | H-shaped mushroom-shaped ultra-wideband common mode noise suppression circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20190107 |