EP3224897B1 - Filtriervorrichtung und filtrieranordnung mit einer elektrisch leitenden streifenstruktur - Google Patents

Filtriervorrichtung und filtrieranordnung mit einer elektrisch leitenden streifenstruktur Download PDF

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Publication number
EP3224897B1
EP3224897B1 EP15807957.4A EP15807957A EP3224897B1 EP 3224897 B1 EP3224897 B1 EP 3224897B1 EP 15807957 A EP15807957 A EP 15807957A EP 3224897 B1 EP3224897 B1 EP 3224897B1
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EP
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Prior art keywords
resonators
connection port
resonator
conducting strip
filter device
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English (en)
French (fr)
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EP3224897A1 (de
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Christian Leray
Geoffroy Lerosey
Nadège KAINA
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Centre National de la Recherche Scientifique CNRS
Avantix SAS
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Centre National de la Recherche Scientifique CNRS
Time Reversal Communications
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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
    • H01P1/201—Filters for transverse electromagnetic waves
    • H01P1/203—Strip line filters
    • 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
    • H01P1/201—Filters for transverse electromagnetic waves
    • H01P1/203—Strip line filters
    • H01P1/20327—Electromagnetic interstage coupling
    • H01P1/20336—Comb or interdigital filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/08—Strip line resonators
    • H01P7/082—Microstripline resonators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/08—Strip line resonators
    • H01P7/088—Tunable resonators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/12—Coupling devices having more than two ports

Definitions

  • the present invention relates to a filtering device with an electrically conductive strip structure. It also relates to a filter assembly comprising a plurality of filtering devices of this type.
  • a filtering device is produced using electrically conductive strips printed by simple etching on one side of an electrically insulating substrate.
  • One or more ground planes can also be made on the same face of the substrate, on another face of the substrate, or by stacking substrates.
  • ⁇ By “effective fundamental resonance wavelength” of a resonator, is meant, of course, the wavelength effectively generated on said face of the substrate by fundamental resonance of the resonator considered, this wavelength being different from that which would correspond in the air because of the index of refraction of the substrate which is not equal to that of the air.
  • first end coupled to the transmission line is meant either a connection of said first end to the transmission line, or possibly a capacitive coupling by approaching said first end and the transmission line.
  • the topology thus proposed a metamaterial structure obtained by micro-ribbon technology which has particularly surprising and advantageous properties.
  • the object of the invention is not envisaged as comprising a delay line whose impedance or phase shift is considered.
  • the main aim is to obtain a metamaterial effect from resonators coupled to a transmission line that is as short as possible, regardless of its impedance which then becomes negligible and not taken into consideration.
  • the conductive strips forming the transmission line and the resonators are rectilinear, the resonators being otherwise parallel to each other so as to form a comb of resonators.
  • the resonators are perpendicular to the transmission line.
  • the resonators are all of the same nominal length, so as to generate the same nominal effective fundamental resonance wavelength, except at least one short resonator, each short resonator being surrounded by two neighboring resonators length nominal and being shorter than the nominal length so as to generate at least one resonant cavity in said plurality of resonators.
  • the resonators are all of nominal length except for a single short resonator so as to generate a single resonant cavity in said plurality of resonators.
  • the resonators are all of nominal length except N short resonators, with N ⁇ 2, arranged in a periodic pattern so as to generate N resonant cavities periodically distributed in said plurality of resonators.
  • At least one resonator is provided with an electronic component for adjusting its equivalent electrical fundamental resonance frequency.
  • the electronic control component comprises one of the elements of the assembly consisting of a PIN diode, a varicap diode, a varistor and a transistor.
  • a filter assembly according to the invention can comprise a single input connection port and a single output connection port, the filtering devices being coupled together in series so that the input connection port the first filter device of the series forms the input connection port of the filter assembly and the output connection port of the last filter device of the series forms the output connection port of the filter assembly.
  • the filtering device 100 shown schematically on the figure 1 comprises a transmission line 102, for example a line 50 ⁇ formed by an electrically conductive strip printed on one side of an electrically insulating substrate 104.
  • This conductive strip 102 has two ends 102 IN and 102 OUT respectively forming the two only ports of input and output connection of the filter device 100.
  • the conductive strip 102 is rectilinear.
  • the filtering device 100 further comprises a plurality of resonators 106 1 ,..., 106 M , each resonator 106 i (1 i i M M ) comprising a band electrically conductive printed on the same side of the substrate 104 as the conductive strip of the transmission line 102.
  • the conductive strip of each resonator 106 i has a first end 108 i connected to the transmission line 102 between the two connection ports 102 IN , OUT 102 and a second end 110 i free or connected to a ground so as to generate an effective fundamental resonance wavelength specific to each resonator 106 i on said face of the substrate 104.
  • the conductive strips of the resonators 106 1 ,..., 106 M are straight, all of the same length L and parallel to each other so as to form a comb of resonators.
  • the resonators 106 1 ,..., 106 M are further perpendicular to the transmission line 102 and their second ends 110 1 ,..., 110 M are illustrated free.
  • the resonators 106 1 ,..., 106 M all have the same effective fundamental resonance wavelength ⁇ equal to four times their length.
  • the resonators 106 1 ,..., 106 M would all have the same effective fundamental resonance wavelength ⁇ equal to twice their length L.
  • the distance noted e i between the first ends 108 i and 108 i + 1 of the two neighboring resonators 106 i and 106 i + 1 of this pair is less than one tenth of the smallest effective fundamental resonance wavelength of the plurality of resonators which is, in this example where all the resonators are all of the same length L, the effective wavelength ⁇ mentioned above.
  • These distances e 1 ,..., E M-1 may even advantageously be less than one tenth, or even one hundredth, of the smallest effective fundamental resonance wavelength of the plurality of resonators 106 1 ,. M. In the particular embodiment of the figure 1 all these distances e 1 , ..., e M-1 are equal and of the same order of magnitude as the width of each resonator.
  • the hybridization bandgap property is due to the phenomena of interference between the resonators 106 1 ,..., 106 M which are very close together and respond in phase opposition to any incident electromagnetic field beyond their resonance frequency.
  • any incident electromagnetic field is reflected, and the metamaterial structure is a notch filter with interesting properties.
  • This transfer function shows that it has thus been conceived a notch-filtering device 100, in other words, with a band-gap at -30 dB, having good performance, the forbidden band of transmission starting just after, in the frequency domain, the resonance frequency (about 1.3 GHz) corresponding to the effective wavelength ⁇ mentioned above and extending to about 1.6 GHz. These good performances are furthermore obtained for a filtering device 100 which remains very compact and of minimal bulk.
  • the filter structure illustrated on the figure 1 is only a particular example of filtering device according to the invention. More generally, the conductive strips forming the transmission line 102 and the resonators 106 1 ,..., 106 M are not necessarily rectilinear, the resonators are not necessarily parallel to each other or perpendicular to the transmission line. and are not necessarily of the same length L. The distances e 1 , ..., e M-1 are not necessarily equal either. On the other hand, it is necessary that for each pair of resonators neighboring the plurality of resonators, the distance between the first ends of the two neighboring resonators of this pair is less than a quarter, or even advantageously to a tenth, of the shortest length of the pair.
  • the filtering device 200 shown schematically on the figure 3 according to a second preferred embodiment of the invention, comprises a transmission line 202 with two ends 202 IN and 202 OUT printed on a substrate 204 and resonators 206 1 , ..., 206 M comprising first 208 1 ,. .., 208 M and second 210 1 , ..., 210 M ends. It is identical to the filter device 100 to except that one 206 i of its resonators 206 1 , ..., 206 M is shorter than the others.
  • the resonators 206 1 ,..., 206 M are all of the same nominal length L, so as to generate the same nominal effective fundamental resonance wavelength ⁇ , except the short resonator 206 i , disposed somewhere in the metamaterial structure between the first resonator 206 1 and the last resonator 206 M so as to generate a singular resonant cavity of very small size in the plurality of resonators 206 1 , ..., 206 M.
  • the distances e 1 ,..., E M-1 must remain less than one quarter, or even advantageously one tenth, of the smallest effective fundamental resonance wavelength of the plurality of resonators which is, in this example, the effective fundamental resonance wavelength of the short resonator 206 i .
  • the presence of the resonant cavity generated by the short resonator 206 i makes it possible to trap certain waves so as to create a resonance peak, this resonance peak being adjustable in position in the forbidden band transmitting the filter device 200 by varying the position and size of the short resonator 206 i in the plurality of resonators 206 1 , ..., 206 M.
  • the resonance peak thus obtained is very narrow, so that it has a large quality factor.
  • This transfer function shows that it has thus been conceived a filter device 200 notch-band or in other words, a bandgap of transmission at -30 dB, presenting not only good performance but also a resonance with a high quality factor. in its forbidden band.
  • the -30 dB band gap which ranges from about 1.3 GHz to 1.7 GHz, has a resonant peak at just under 1.6 GHz, the rejection being very steep around this resonance, 30 dB in a few tens of MHz.
  • the filtering device 300 comprises a transmission line 302 with two ends 302 IN and 302 OUT printed on a substrate 304 and resonators 306 1 , ..., 306 M comprising first 308 1 , ..., 308 M and second 310 1 , ..., 310 M ends. It is similar to the filter devices 100 and 200 except that several 306 i, 1 , ..., 306 i, N of its resonators 306 1 ,..., 306 M are shorter than the others.
  • the resonators 306 1 ,..., 306 M are all of the same nominal length L, so as to generate the same nominal effective fundamental resonance wavelength ⁇ , except the N short resonators 306 i, 1 , ..., 306 i, N , arranged in the metamaterial structure between the first resonator 306 1 and the last resonator 306 M so as to generate N very small coupled resonant singular cavities in the plurality of resonators 306 1 , .. ., 306 M. Each short resonator is surrounded by two neighboring resonators of nominal length.
  • the N short resonators 306 i, 1 , ..., 306 i, N are arranged in a periodic pattern so as to generate N resonant cavities periodically distributed in said plurality of resonators.
  • a short resonator is arranged every three resonators.
  • Each resulting resonant cavity is then separated from its neighbors by two resonators of nominal length and is therefore coupled directly only with its closest neighbors.
  • the width of this frequency band can be modified by modifying the structural parameters of the filtering device 300. This makes it possible to produce a filter type with even more abrupt frequency transitions (ie increasing the order of the filter) and easier to adjust.
  • Another effect resulting from the increase in the number of cavities in the metamaterial structure of the figure 5 is to considerably slow the group speed of electrical signals passing through the filter device, because a band of slow speed propagation modes is thus created.
  • the distances e 1 ,..., E M-1 must remain less than one quarter, or even advantageously one tenth, of the smallest effective fundamental resonance wavelength of the plurality of resonators. which is, in this example, the effective fundamental resonance wavelength of the N short resonators 306 i, 1 , ..., 306 i, N.
  • the filtering device 400 comprises a transmission line 402 with two ends 402 IN and 402 OUT printed on a substrate 404 and resonators 406 1 ,..., 406 M comprising first 408 1 , ..., 408 M and second 410 1 , ..., 410 M ends. It is similar to the filtering device 200 except that the short resonator 206 i is replaced by a resonator 406 i of the same length as the others but provided with an electronic component 412 for adjusting its resonance equivalent electric frequency fundamental. Thanks to this component, it is possible to modulate this frequency, in particular to increase it, without modifying the length of the resonator.
  • the electronic component 412 is for example a PIN diode, a varicap diode, a varistor or a transistor.
  • the distances e 1 ,..., E M-1 must remain less than one fourth, or even advantageously one tenth, of the smallest effective fundamental resonance wavelength of the plurality of resonators which is in this example, the effective fundamental resonance wavelength corresponding to the equivalent electrical resonance frequency of the resonator 406 i .
  • the resonator runs 456 i remains shorter than the others.
  • This split form of the so-called fractal resonators can be generalized into a multi-second tree shape for each resonator. It makes it possible to shorten the length of each resonator for the same effective resonance wavelength, at the cost of greater lateral bulk.
  • the distances e 1 ,..., E M-1 must remain less than one fourth, or even advantageously one tenth, of the smallest effective fundamental resonance wavelength of the plurality of resonators which is in this example, the effective fundamental resonance wavelength corresponding to the fundamental resonator equivalent electrical frequency of the short resonator 456 i .
  • the transfer function is obtained illustrated on the figure 8 .
  • This transfer function shows that it has thus been conceived a band-stop filtering device 450, in other words, a bandgap band at -30 dB, which not only has good performance but also broadband resonance in its range. forbidden band.
  • the -30 dB band gap which ranges from about 1.45 GHz to 2.55 GHz, has a peak resonant at 1.9 GHz in a bandwidth of -30 dB which extends about 1, 8 GHz to 2.4 GHz. These good performances are also obtained for a filtering device 450 which remains very compact and compact.
  • a filter assembly with at least one input connection port and at least one output connection port, having a plurality of filtering devices according to the invention can be designed. All the electrically conductive strips forming the transmission lines and the resonators of the filtering devices of such a filter assembly are printed on the same face of the same substrate. Furthermore, the filtering devices are coupled together in series and / or in parallel according to topologies that can be very diverse. It is thus possible to conceive a filtering unit that achieves ambitious objectives in terms of bandwidth, bandwidth loss and rejection level around this bandwidth.
  • the filtering devices are coupled together in series, so that the filter assembly comprises only one input connection port and one output connection port, the port of the first filtering device of the series forming the input connection port of the filter assembly and the output connection port of the last filtering device of the series forming the output connection port of the filter assembly.
  • FIG. figure 9 A first embodiment of a filter assembly according to the invention and according to this first family of topologies is illustrated in FIG. figure 9 .
  • the filter assembly 500 with two connection ports 502 IN and 502 OUT illustrated in this figure comprises two filtering devices 504, 506 of the same type as the filtering device 200, that is to say resonators all of the same length. except one.
  • the input connection port 502 IN corresponds to the input connection port of the first filter device 504 and the output connection port 502 OUT corresponds to the output connection port of the second and last filter device 506.
  • the two transmission lines of the two filtering devices 504 and 506 are in the extension of each other and the output connection port of the transmission line of the first filtering device 504 is coupled to the connection port of input of the transmission line of the second filter device 506 with a printed capacitive element 508.
  • the latter is formed of two electrically conductive strips perpendicular to the transmission lines of the two filtering devices 504 and 506 coupled. It makes it possible to maintain the two filtering devices 504 and 506 at a distance from one another while coupling them.
  • the transfer function illustrated on FIG. figure 10 shows that a filter set 500 has thus been designed whose band-gap and resonant band-band properties are improved.
  • a bandwidth at -30 dB of around 100 MHz between 1.5 and 1.6 GHz in the forbidden band and a rejection of 40 dB in a few tens of MHz around this bandwidth are reached, losses at resonance peak being less than 3 dB.
  • a second embodiment of a filter assembly according to the invention and according to the first family of topologies is illustrated on the figure 11 .
  • the filter assembly 600 with two connection ports 602 IN and 602 OUT illustrated in this figure comprises two filtering devices 604, 606 of the same type as the filtering device 200, that is to say resonators all of the same length. except for one (the resonant cavity is not arranged at the center of the plurality of resonators). These two filtering devices 604 and 606 are arranged in axial symmetry with respect to each other along an axis perpendicular to the transmission lines.
  • the input connection port 602 IN corresponds to the input connection port of the first filter device 604 and the output connection port 602 OUT corresponds to the output connection port of the second and last filter device 606.
  • the two transmission lines of the two filtering devices 604 and 606 are in the extension of each other and the output connection port of the transmission line of the first filter device 604 is electromagnetically coupled to the connection port of input of the transmission line of the second filtering device 606.
  • the two coupled ports are brought closer to one another and the coupling is done directly without any particular element. This coupling varies as a function of the separation distance of the two filtering devices 604 and 606.
  • the transfer function illustrated on FIG. figure 12 shows that a filter set 600 has thus been designed whose properties of band-cutter and resonant band in the forbidden band are improved. In particular, a bandwidth at -30 dB of around 50 MHz in the forbidden band and a rejection of 40 dB in a few tens of MHz around this bandwidth are reached, the losses at the resonant peak being less than 3 dB .
  • FIG. figure 13 A third embodiment of a filter assembly according to the invention and according to the first family of topologies is illustrated in FIG. figure 13 .
  • the filter assembly 700 with two connection ports 702 IN and 702 OUT illustrated in this figure comprises two filtering devices 704, 706 of the same type as the filtering device 200, that is to say with resonators all of the same length. except for one (the resonant cavity is not arranged at the center of the plurality of resonators). These two filtering devices 704 and 706 are arranged in central symmetry with respect to one another on a point of the substrate on which they are printed.
  • the input connection port 702 IN corresponds to the input connection port of the first filter device 704 and the output connection port 702 OUT corresponds to the output connection port of the second and last filter device 706.
  • the two transmission lines of the two filtering devices 704 and 706 are parallel without being in the extension of one another.
  • the electromagnetic coupling of the two filtering devices 704 and 706 is along two of their close resonators vis-à-vis, one connected to the output connection port of the first filtering device 704, the other connected to the input connection port of the second filter device 706.
  • the coupling is done directly without any particular element. This coupling varies according to the separation distance of the two resonators vis-à-vis.
  • the previously described filtering devices 100, 200, 300, 400, 450 may be coupled together in parallel so that the filter assembly has a plurality of input connection ports or a plurality of ports. output connection.
  • FIG. figure 15 A fourth embodiment of a filter assembly according to the invention and according to this second family of topologies is illustrated in FIG. figure 15 .
  • the filter assembly 800 with n input connection ports 802 IN1 , ..., 802 INn and an output connection port 802 OUT illustrated in this figure has n filters 804 1 ,..., 804 n which can each be of the same type as any of the filtering devices 100, 200, 300, 400, 450 or others.
  • the input connection port 802 IN1 corresponds to the input connection port of the first filter 804 1 , ...
  • the input connection port 802 INn corresponds to the input connection port of the last filter 804 n
  • the output connection port 802 OUT corresponds to the parallel interconnection of the n output connection ports of the n filters 804 1 ,..., 804 n .
  • a signal whose spectrum is included in the forbidden band of each filter 804 1 , ..., 804 n , is provided at the inputs 802 IN1 , ..., 802 INn of the filter assembly 800, only the part of the spectrum corresponding to the resonant peak or the bandwidth of the first filter 804 1 is transmitted by this first filter 804 1 at the output 802 OUT , ..., only the part of the spectrum corresponding to the resonant peak or the bandwidth of the last filter 804 1 is transmitted by the latter 804 1 filter 802 OUT output, so that we obtain at the output a signal multiplexed according to the different resonant peaks or bandwidths of the n filters 804 1 , ..., 804 n .
  • the filter assembly 800 is passive and therefore reversible. It can then be seen and used as a filter assembly at an input connection port 802 OUT and n output connection ports 802 IN1 , ..., 802 INn .
  • an input connection port 802 OUT and n output connection ports 802 IN1 , ..., 802 INn By injecting therein a spectrum signal included in the forbidden band of each filter 804 1 ,..., 804 n , there are at the outputs 802 IN1 ,..., 802 INn the n parts of the signal corresponding respectively to the n resonant peaks or bandwidths of n filters 804 1 , ..., 804 n .
  • filter assemblies filtering devices coupled in series such as filter assemblies 500, 600, 700, can also constitute all or part of the filters 804 1 , ..., 804 n coupled in parallel.
  • a filter assembly may be designed by serially coupling filter assemblies of parallel coupled filter devices.
  • a filtering device or filter assembly such as one of those described above makes it possible to provide a high-performance filter for a minimum space requirement, thanks to a metamaterial structure obtained by bringing together a plurality of resonators so that the distances between neighboring resonators are always less than a quarter, or even advantageously one tenth, of the smallest effective fundamental resonance wavelength of the plurality of resonators.

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Claims (10)

  1. Filtriervorrichtung (100; 200; 300; 400; 450) mit elektrisch leitender Streifenstruktur, umfassend:
    - eine Übertragungsleitung (102; 202; 302; 402; 452), gebildet von einem elektrisch leitenden Streifen, der auf eine Seite eines elektrisch isolierenden Substrats (104; 204; 304; 404; 454) gedruckt ist, wobei dieser leitende Streifen zwei Enden (102IN, 102OUT; 202IN, 202OUT; 302IN, 302OUT; 402IN, 402OUT; 452IN, 452OUT) aufweist, die jeweils die zwei einzigen Eingangs- und Ausgangsverbindungsports der Filtriervorrichtung (100; 200; 300; 400; 450) bilden,
    - eine Vielzahl von Resonatoren (1061, ..., 106M; 2061, ..., 206M; 3061, ..., 306M; 4061, ..., 406M; 4561, ..., 456M), wobei jeder Resonator einen elektrisch leitenden Streifen umfasst, der auf der Seite des Substrats (104; 204; 304; 404; 454) gedruckt ist,
    - wobei der leitende Streifen jedes Resonators (1061, ..., 106M; 2061, ..., 206M; 3061, ..., 306M; 4061, ..., 406M; 4561, ..., 456M) ein erstes Ende (1081, ..., 108M; 2081, ..., 208M; 3081, ..., 308M; 4081, ..., 408M; 4581, ..., 458M) aufweist, das an die Übertragungsleitung zwischen den zwei Verbindungsports gekoppelt ist, und mindestens ein zweites Ende (1101, ..., 110M; 2101, ..., 210M; 3101, ..., 310M; 4101, ..., 410M; 4601, ..., 460M), das frei ist oder derart an eine Masse angeschlossen ist, das eine effektive Grundresonanzwellenlänge erzeugt wird, die für jeden Resonator auf der Seite des Substrats spezifisch ist, wobei die Filtriervorrichtung dadurch gekennzeichnet ist, dass
    - für jedes Paar benachbarter Resonatoren der Vielzahl von Resonatoren der Abstand (e1, ..., eM-1) zwischen den ersten Enden der zwei benachbarten Resonatoren dieses Paares kleiner als ein Zehntel der kleinsten effektiven Grundresonanzwellenlänge der Vielzahl von Resonatoren (1061, ..., 106M; 2061, ..., 206M; 3061, ..., 306M; 4061, ..., 406M; 4561, ..., 456M) auf der Seite des Substrats ist.
  2. Filtriervorrichtung (100; 200; 300; 400) mit elektrisch leitender Streifenstruktur nach Anspruch 1, wobei die leitenden Streifen, welche die Übertragungsleitung (102; 202; 302; 402) und die Resonatoren (1061, ..., 106M; 2061, ..., 206M; 3061, ..., 306M; 4061, ..., 406M) bilden, geradlinig sind, wobei die Resonatoren im Übrigen derart parallel zueinander sind, dass sie einen Resonatorkamm bilden.
  3. Filtriervorrichtung (100; 200; 300; 400) mit elektrisch leitender Streifenstruktur nach Anspruch 2, wobei die Resonatoren (1061, ..., 106M; 2061, ..., 206M; 3061, ..., 306M; 4061, ..., 406M) senkrecht zu der Übertragungsleitung (102; 202; 302; 402) sind.
  4. Filtriervorrichtung (200; 300; 450) mit elektrisch leitender Streifenstruktur nach einem der Ansprüche 1 bis 3, wobei die Resonatoren (2061, ..., 206M; 3061, ..., 306M; 4561, ..., 456M) alle dieselbe nominale Länge (L) haben, so dass eine selbe nominale effektive Grundresonanzwellenlänge erzeugt wird, bis auf mindestens einen kurzen Resonator (206i; 306i,1, ..., 306i,N; 456i), wobei jeder kurze Resonator von zwei benachbarten Resonatoren nominaler Länge umgeben ist und eine geringere Länge als die nominale Länge hat, so dass mindestens ein Resonanzhohlraum in der Vielzahl von Resonatoren (2061, ..., 206M; 3061, ..., 306M; 4561, ..., 456M) erzeugt wird.
  5. Filtriervorrichtung (200; 450) mit elektrisch leitender Streifenstruktur nach Anspruch 4, wobei die Resonatoren (2061, ..., 206M; 4561, ..., 456M) alle dieselbe nominale Länge (L) haben, bis auf einen einzigen kurzen Resonator (206i; 456i), so dass ein einziger Resonanzhohlraum in der Vielzahl von Resonatoren (2061, ..., 206M; 4561, ..., 456M) erzeugt wird.
  6. Filtriervorrichtung (300) mit elektrisch leitender Streifenstruktur nach Anspruch 4, wobei die Resonatoren (3061, ..., 306M) alle eine nominale Länge (L) haben, bis auf N kurze Resonatoren (306i,1, ..., 306i,N) mit N≥2, die gemäß einem periodischen Motiv derart angeordnet sind, dass N Resonanzhohlräume erzeugt werden, die in der Vielzahl von Resonatoren (3061, ..., 306M) periodisch verteilt sind.
  7. Filtriervorrichtung (400) mit elektrisch leitender Streifenstruktur nach einem der Ansprüche 1 bis 6, wobei mindestens ein Resonator (406i) mit einer elektronischen Regelkomponente (412) seiner elektrischen Frequenz entsprechend der Grundresonanz ausgestattet ist.
  8. Filtriervorrichtung (400) mit elektrisch leitender Streifenstruktur nach Anspruch 7, wobei die elektrische Regelkomponente (412) eines der Elemente der Einheit umfasst, die von einer PIN-Diode, einer Varicap-Diode, einem Varistor und einem Transistor gebildet ist.
  9. Filtriereinheit (500; 600; 700; 800) mit mindestens einem Eingangsverbindungsport (502IN; 602IN; 702IN; 802IN1, .., 802INn) und mindestens einen Ausgangsverbindungsport (502OUT; 602OUT; 702OUT; 802OUT), umfassend eine Vielzahl von Filtriervorrichtungen (504, 506; 604, 606; 704, 706; 8041, ..., 804n) nach einem der Ansprüche 1 bis 8, wobei:
    - die elektrisch leitenden Streifen, welche die Übertragungsleitungen und die Resonatoren der Filtriervorrichtungen (504, 506; 604, 606; 704, 706; 8041, ..., 804n) bilden, auf einer selben Seite eines selben Substrats gedruckt sind,
    - die Filtriervorrichtungen (504, 506; 604, 606; 704, 706; 8041, ..., 804n) untereinander in Reihe und/oder parallel gekoppelt sind.
  10. Filtriereinheit (500; 600; 700) nach Anspruch 9, umfassend einen einzigen Eingangsverbindungsport (502IN; 602IN; 702IN) und einen einzigen Ausgangsverbindungsport (502OUT; 602OUT; 702OUT), wobei die Filtriervorrichtungen (504, 506; 604, 606; 704, 706) untereinander derart in Reihe gekoppelt sind, dass der Eingangsverbindungsport der ersten Filtriervorrichtung (504; 604; 704) der Reihe den Eingangsverbindungsport (502IN; 602IN; 702IN) der Filtriereinheit (500; 600; 700) bildet und der Ausgangsverbindungsport der letzten Filtriervorrichtung (506; 606; 706) der Reihe den Ausgangsverbindungsport (502OUT; 602OUT; 702OUT) der Filtriereinheit (500; 600; 700) bildet.
EP15807957.4A 2014-11-27 2015-11-26 Filtriervorrichtung und filtrieranordnung mit einer elektrisch leitenden streifenstruktur Active EP3224897B1 (de)

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FR1461555A FR3029368B1 (fr) 2014-11-27 2014-11-27 Dispositif de filtrage et ensemble filtrant a structure de bandes electriquement conductrices
PCT/FR2015/053224 WO2016083747A1 (fr) 2014-11-27 2015-11-26 Dispositif de filtrage et ensemble filtrant a structure de bandes electriquement conductrices

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US10116024B2 (en) * 2016-05-11 2018-10-30 King Abdulaziz City For Science And Technology Microstrip notch filter with two-pronged fork-shaped embedded resonator
CN107895832A (zh) * 2017-12-18 2018-04-10 江苏贝孚德通讯科技股份有限公司 容性交叉耦合结构及通讯前端设备部件
CN112564670B (zh) * 2020-11-20 2023-11-21 核工业二〇八大队 一种音频大地电磁数据工频噪声干扰的滤波方法
CN115332774B (zh) * 2022-10-13 2023-01-24 深圳市鑫龙通信技术有限公司 一种基于超材料的低频双极化滤波辐射单元及通信设备

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FR2220929B1 (de) * 1973-02-20 1976-06-11 Minet Roger
AU470870B2 (en) * 1973-10-29 1976-04-01 Matsushita Electric Industrial Co., Ltd. Filters employing elements with distributed constants
JPH11186819A (ja) * 1997-12-22 1999-07-09 Murata Mfg Co Ltd 帯域阻止フィルタ及びデュプレクサ
US6504448B1 (en) * 2000-08-08 2003-01-07 Rambus Inc. Apparatus and method for transmission line impedance tuning using periodic capacitive stubs
JP2010141877A (ja) * 2008-12-09 2010-06-24 Korea Electronics Telecommun 結合線路フィルタ及びその配置方法

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US10476121B2 (en) 2019-11-12
FR3029368A1 (fr) 2016-06-03
WO2016083747A1 (fr) 2016-06-02
FR3029368B1 (fr) 2018-04-06
US20170263993A1 (en) 2017-09-14

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