CN204333177U - Multimode paster ultra broadband (UWB) band pass filter - Google Patents
Multimode paster ultra broadband (UWB) band pass filter Download PDFInfo
- Publication number
- CN204333177U CN204333177U CN201420818478.0U CN201420818478U CN204333177U CN 204333177 U CN204333177 U CN 204333177U CN 201420818478 U CN201420818478 U CN 201420818478U CN 204333177 U CN204333177 U CN 204333177U
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- China
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- paster
- multimode
- uwb
- ultra broadband
- pass filter
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Abstract
The utility model discloses multimode paster ultra broadband (UWB) band pass filter.This filter by symmetrical multimode resonant patch (101), port paster (102), microstrip transmission line (103), the medium substrate (104) of dielectric-slab upper surface, metal ground plate (105) composition under medium substrate.The utility model utilizes multimode resonant patch to realize requiring wider pass band width filter than UWB, and annulus paster realizes multimode and modulus is adjustable.Project organization is simple, compact conformation reaches structure macro, easy to process, realizability is high, with low cost, bandwidth ultra-wide, modulus are adjustable.The filter that the utility model relates to has selectivity characteristic in good passband, and this selectivity is better, more signal can be selected to pass through, have very high practical value.
Description
Technical field
The utility model relates to multimode paster ultra broadband (UWB) band pass filter, multimode is there is in this filter in UWB, band is realized logical in UWB, can well select the signal in ultra broadband, ultra broadband (UWB) band pass filter has important practical value in wireless communication technology and radar system and ultra broadband location.
Background technology
Band pass filter can allow the signal in passband well pass through, and the signal beyond filtering passband well realizes the selectivity characteristic of band pass filter.But along with the development of modern communication technology, the bandwidth of required signal is more and more wider, now more and more higher to the requirement of ultra broadband, so multimode paster ultra broadband (UWB) band pass filter just has very high practical value.UWB or wide-band microwave filter are that modern communication technology applies very basic part, and such as UWB, radar system, navigation system, wireless communication technology, the fast development of this special dimension facilitates the development of various ultra-wide band filter.In February, 2002, FCC (FCC) ratifies 3.1-10.6GHz frequency range for business telecommunication, and therefore UWB is widely used.But, some technical requirements exceed 3.1-10.6GHz frequency range, now multimode paster ultra broadband (UWB) band pass filter compensate for the shortcoming of narrow bandwidth in this respect, greatly broaden bandwidth, more signal is allowed to pass through filter, in addition there is multimode in this ultra broadband (UWB) band pass filter in passband, has higher practical value in wireless communication technology.Along with the development of integrated communication system, modern electronic product is more and more higher for the requirement of microminiaturization, the studied person's extensive use of undersized technology is subtracted so various, ultra broadband (UWB) band pass filter just achieves structure macro, reaches and subtracts undersized target now for former cascade structure.
Occurred a lot of mentality of designing in recent years, as multimode resonator (MMR), cascade structure etc., although these structures can realize filter effect, but volume is large or selectivity is poor or limited bandwidth.Signal in UWB can be selected better so design has multimode paster ultra broadband (UWB) band pass filter and better select the signal except UWB both sides simultaneously, better realize the selectivity of ultra broadband, ultra broadband (UWB) band pass filter has great importance.
Utility model content
The purpose of this utility model is to provide has ultra broadband (UWB) band pass filter, this filter can better select the signal in ultra broadband meanwhile can the wider signal of Selection radio ultra broadband and occur multimode in passband, size is little reaches microminiaturized target, has very high using value to wireless communication technology, radar system, navigation system.
The technical scheme that the utility model adopts:
Multimode paster ultra broadband (UWB) band pass filter, comprises multimode resonant patch (101), port paster (102), microstrip transmission line (103) that medium substrate (104), metal ground plane (105), dielectric-slab upper surface are symmetrical.
Described multimode paster ultra broadband (UWB) band pass filter, is characterized in that, affiliated symmetrical multimode resonant patch comprises annulus paster (1011), rectangular patch (1012).
Described multimode paster ultra broadband (UWB) band pass filter, is characterized in that, microstrip transmission line (103), and microstrip transmission line and rectangular patch (1012) are up and down apart from equal and width is identical.
Described multimode paster ultra broadband (UWB) band pass filter, is characterized in that, port paster (102), and port paster is symmetrical up and down about transmission microstrip line.
This utility model filter has following characteristic and advantage relative to existing filter:
Project organization is simple, compact conformation reaches structure macro, easy to process, realizability is high, with low cost, ultra broadband, multimode phenomenon.
The modulus occurred in passband can be changed by the change of the size of adjustment annulus paster (1011).
The length of adjustment microstrip transmission line (103), does not affect the realization of ultra broadband.
Ultra broadband, multimode can be realized.
Accompanying drawing explanation
Fig. 1 is the basic structure vertical view of the utility model embodiment 1;
Fig. 2 is the basic structure end view of the utility model embodiment 1;
Fig. 3 is the multimode resonant patch structure chart of the utility model embodiment 1;
Fig. 4 is port and the microstrip line johning knot composition of the utility model embodiment 1;
Embodiment
The utility model devises multimode paster ultra broadband (UWB) band pass filter, and this filter can produce the broadband wider than ultra broadband, and occurs multimode in passband, and structure is simple, size is little achieves microminiaturization.
Specifically utility model is described in more detail below in conjunction with accompanying drawing:
An example of the present utility model as shown in Figure 2, medium substrate (104) to be dielectric constant be 4.4 FR4_epoxy.The length and width requirement up to specification of medium substrate, the thickness of this medium substrate is 1.59mm, and dielectric loss is 0.02.Metal ground plate (105) under medium substrate adopts copper product.
As shown in Figure 1, multimode paster ultra broadband (UWB) band pass filter of the present utility model, multimode resonant patch (101) on medium substrate, port paster (102), microstrip transmission line (103), adopt copper product, economy is environmental protection again.
As shown in Figure 3, multimode paster ultra broadband (UWB) band pass filter of the present utility model, its multimode resonant patch comprises annulus paster (1011), rectangular patch (1012), the external diameter radius of described annulus paster (1011), the size of paster (1012) is all meet impedance matching, microstrip line is fixed with the gap of paster (1012) and the upper and lower gap of microstrip line is equal, and multimode resonant patch realizes the appearance of ultra broadband.
As shown in Figure 3, multimode paster ultra broadband (UWB) band pass filter of the present utility model adopts the structure of annulus paster to realize the appearance of multimode in passband.
As shown in Figure 4, the utility model multimode paster ultra broadband (UWB) band pass filter adopts microstrip line to realize transmission coupling, and microstrip transmission line (103) has identical width with paster (1012) and upper and lower apart from equal.
The design parameter of the adjustable filtering of this utility model dual-passband:
The selection of medium substrate: dielectric constant is the FR4_epoxy of 4.4.The dielectric loss of medium substrate is 0.02, ensure that loss is less; The length and width of medium substrate (104) is respectively 9mm, 33.8mm, and the thickness of this medium substrate is that 1.59mm meets required intensity.Multimode resonant patch on medium substrate and the metal ground plate under medium substrate all adopt copper product, economic and practical and environmental protection.
The design of multimode resonant patch: according to filter correlation theory, design meets the resonant element of ultra-wideband communications.The external diameter radius of annulus paster (1011) is 3.4mm, and the length and width of paster (1012) is respectively 5mm, 0.4mm, and the gap length of microstrip line and paster (1012) is 0.1mm.
Microstrip design: microstrip transmission line (103) has identical width with paster (1012), width is 0.4mm.
Claims (4)
1. multimode paster ultra broadband (UWB) band pass filter, comprises multimode resonant patch (101), port paster (102), microstrip transmission line (103) that medium substrate (104), metal ground plane (105), dielectric-slab upper surface are symmetrical.
2. multimode paster ultra broadband (UWB) band pass filter according to claim 1, it is characterized in that, affiliated symmetrical multimode resonant patch comprises annulus paster (1011), rectangular patch (1012).
3. multimode paster ultra broadband (UWB) band pass filter according to claim 1, is characterized in that, microstrip transmission line (103), and microstrip transmission line and rectangular patch (1012) are up and down apart from equal and width is identical.
4. multimode paster ultra broadband (UWB) band pass filter according to claim 1, is characterized in that, port paster (102), and port paster is symmetrical up and down about transmission microstrip line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420818478.0U CN204333177U (en) | 2014-12-21 | 2014-12-21 | Multimode paster ultra broadband (UWB) band pass filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420818478.0U CN204333177U (en) | 2014-12-21 | 2014-12-21 | Multimode paster ultra broadband (UWB) band pass filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204333177U true CN204333177U (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420818478.0U Expired - Fee Related CN204333177U (en) | 2014-12-21 | 2014-12-21 | Multimode paster ultra broadband (UWB) band pass filter |
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| CN (1) | CN204333177U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900949A (en) * | 2015-06-05 | 2015-09-09 | 南京理工大学 | Broadband three-mode balanced band-pass filter based on interdigital multi-mode resonators |
-
2014
- 2014-12-21 CN CN201420818478.0U patent/CN204333177U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900949A (en) * | 2015-06-05 | 2015-09-09 | 南京理工大学 | Broadband three-mode balanced band-pass filter based on interdigital multi-mode resonators |
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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 |
Granted publication date: 20150513 Termination date: 20151221 |
|
| EXPY | Termination of patent right or utility model |