21 results about "Stripline resonator" patented technology

A sensor element for testing a flat-surface data carrier has a spin resonance feature. The sensor element includes a magnetic core with an air gap, into which the flat-surface data carrier can be inserted for testing, a polarization device for generating a static magnetic flux in the air gap, and a resonator device for exciting the spin resonance feature of the data carrier to be tested in the air gap. The resonator device contains at least two stripline resonators, which are designed and configured to be operated at different excitation frequencies.

A sensor element is for testing a planar data carrier with a spin resonance feature. The sensor element includes a magnetic core having an air gap into which the planar data carrier can be inserted for testing purposes, a polarization device for generating a static magnetic flux in the air gap, and a resonator device for exciting the spin resonance feature of the data carrier to be tested in the air gap. The resonator device has at least two stripline resonators positioned at different positions in the air gap. The polarization device generates an in-homogeneous magnetic flux in the air gap so that the static magnetic flux has a first field strength at the position of a first stripline resonator and a second, different field strength at the position of a second stripline resonator.

A sensor element is for testing a planar data carrier that has a spin resonance feature. The sensor element includes: a magnetic core having an air gap into which the planar data carrier can be inserted for testing purposes; a polarization device for generating a static magnetic flux in the air gap; and a resonator device for exciting the spin resonance feature of the data carrier to be tested in the air gap. The resonator device has a stripline resonator and a supply structure for the stripline resonator and is designed to generate a high-frequency field with circular polarization owing to the geometry of the stripline resonator and / or the geometry of the supply structure.

The invention relates to a band-pass filter structure and a design method, the band-pass filter structure comprises two SIW resonators which are distributed in a bilateral symmetry manner, adjacent surfaces of the two SIW resonators form a common wall, a second metal layer at least comprises a strip line resonator and a stepped strip line with two short-circuited ends, the two SIW resonators and the strip line resonator adopt a coplanar waveguide feed structure, and the two SIW resonators and the stepped strip line resonator are connected in parallel. The two SIW resonators are electrically coupled with the stepped strip line of which the two ends are short-circuited, and an inductive coupling window is arranged on a common wall to form magnetic coupling; the stripline resonator comprises a U-shaped half-wavelength stripline resonator with two short-circuited ends, an L-shaped quarter-wavelength stripline resonator or a combination of the U-shaped half-wavelength stripline resonator with two short-circuited ends and a full-wavelength stripline resonator. The number of transmission zero points is large and the positions are controllable through hybrid electromagnetic coupling, the order design of the filter is realized through the shape and the number of the combined strip line resonators, and the filter has the advantages of high selectivity and compact structure.

The present invention discloses a miniaturized filter that is a hybrid of a SIW cavity and a stripline resonator, which mainly includes a SIW cavity, an intermediate metal layer composed of two striplines, a blind hole connecting the stripline and the lower surface metal layer, and a feeding microstrip line. The SIW cavity, the secondary mode of the full-wavelength stripline resonator, and the primary mode of the half-wavelength stripline are used to construct the transmission poles of the filter. The primary mode of the full-wavelength stripline is used as a non-resonant node to construct an additional transmission zero point, and the filter generates two transmission zero points with adjustable positions. The two striplines introduce electrical coupling into the two SIW cavities, and an inductive window can be opened on the common metal sidewalls of the adjacent SIW cavities to construct an electromagnetic hybrid coupling, thereby adding an additional transmission zero point to the right side of the passband. Compared with the traditional fourth-order SIW filter, the size of the present invention is reduced by 50%, while maintaining a high frequency selectivity.

The present invention proposes a double-sided parallel stripline-based differential-to-differential filter with broadband differential-mode and common-mode non-reflection characteristics. The filter comprises two pairs of input or output double-sided parallel stripline transmission lines printed on a dielectric substrate, multiple half-wavelength double-sided parallel stripline resonators, one or more quarter-wavelength double-sided parallel stripline resonators on each side of axis AA′, and resistors connecting the front and back transmission lines of the double-sided parallel stripline transmission lines. Because the resonators can only be excited by differential-mode signals, they exhibit frequency-selective characteristics, but cannot be excited by common-mode energy and therefore lack frequency-selective characteristics. Therefore, common-mode energy is dissipated over a wide bandwidth by matching resistors loaded at the transmission line terminals, effectively broadening the non-reflection bandwidth of common-mode energy. Furthermore, by increasing the number of half-wavelength and quarter-wavelength double-sided parallel stripline resonators, improved passband selectivity can be achieved.

The invention discloses a one-to-many-way substrate integrated waveguide broadband filtering power divider. A plurality of circularly symmetrically distributed three-terminal short-circuited T-type stripline resonators are respectively connected correspondingly to a central circular substrate integrated waveguide resonator and a peripheral fan-shaped substrate integrated waveguide resonator. The field distribution characteristics of the three-terminal short-circuited T-type stripline resonator are utilized to adjust the coupling between the resonators on each channel and the isolation between the T-type stripline resonators, thereby realizing a one-to-many-way substrate integrated waveguide broadband filtering power divider. The device has a multi-channel output capability and broadband working characteristics, and can take into account the fusion degree of filtering and power division, the order of filtering response, the consistency of output channel response, the stopband bandwidth and loss.

This utility model discloses a shielded filter based on an integrated stripline resonator, belonging to the field of filter technology. It includes a resonator body with an RF connection line connected to it for signal input and output. Two resonator bodies are connected by a connecting post. A cavity houses both resonator bodies, shielding them. A mounting block is externally connected to the cavity, featuring through holes and a conformal curved surface for mounting the RF connection line. This shielded filter, through the cooperation of the resonator body and the cavity, forms a filter with a shielded cavity. This structure achieves filtering, and the integrated stripline design makes the filter easy to assemble, highly accurate, and ensures phase consistency.

The invention relates to the technical field of microwave communication, in particular to a miniaturized broadband LTCC (Low Temperature Co-Fired Ceramic) band-pass filter. The filter comprises a multi-layer LTCC dielectric substrate, the LTCC dielectric substrate comprises six sintered compact ceramic layers which are arranged from top to bottom, the first ceramic layer is a top layer, the second ceramic layer and the fifth ceramic layer are respectively provided with a U-shaped strip line resonator, the third ceramic layer and the fourth ceramic layer are respectively provided with a spiral inductance resonator, and the fourth ceramic layer is provided with a spiral inductance resonator. The first ceramic layer, the second ceramic layer, the third ceramic layer, the fourth ceramic layer, the fifth ceramic layer and the sixth ceramic layer are sequentially arranged from top to bottom, metalized blind holes are formed in the second ceramic layer to the fifth ceramic layer, and asymmetric L-shaped slotted grounds are etched on the bottom layers. The fractal geometric resonator is adopted, and the effective size of the fractal geometric resonator is 35% of that of a traditional design; a six-layer LTCC laminated structure is adopted, and layers are in three-dimensional interconnection through vertical blind holes; a U-shaped strip line resonator and a spiral inductance resonator are arranged to form magnetoelectric hybrid coupling; the bandwidth is expanded to about 40% of the relative bandwidth through the asymmetric L-shaped slots.

The invention discloses a square SIW (substrate integrated waveguide) cavity and strip line resonator mixed miniaturized filter, which comprises a dielectric layer, the top metal layer is located on the upper surface of the dielectric layer; the middle metal layer is located in the middle of the dielectric layer; the bottom metal layer is located on the lower surface of the dielectric layer; the metalized through hole array penetrates through the dielectric layer and is connected with the top metal layer and the bottom metal layer; the first metalized blind hole and the second metalized blind hole are used for connecting the middle metal layer and the bottom metal layer; the first metalized through hole and the second metalized through hole are connected with the top metal layer and the bottom metal layer; a feed microstrip line; the strip line resonator is embedded in the SIW cavity, the hybrid structure introduces an additional transmission zero point for the filter while reducing the size of the filter and reducing radiation loss, and the stop band frequency selection characteristic of the filter is improved.

The present invention relates to a multiband filter and a communication device. The multiband filter includes a plurality of multimode resonators, wherein each of the multimode resonators is a strip line resonator including a grounding part and two or more non-grounding branches for achieving multiple modes.

The invention discloses a substrate integrated waveguide filter structure based on a mixed structure and a design method, and the structure comprises a bottom plate, a first dielectric substrate, a middle layer, a second dielectric substrate and a top plate, the stripline resonator includes a U-shaped half-wavelength stripline resonator or a combination of a U-shaped half-wavelength stripline resonator and a full-wavelength stripline resonator. A main body of the U-shaped half-wavelength strip line resonator is of a U-shaped structure, blind holes are formed in the two ends of the U-shaped half-wavelength strip line resonator, the U-shaped half-wavelength strip line resonator is arranged on the upper portion, the middle portion or the lower portion of the common wall, and the middle point of the U-shaped half-wavelength strip line resonator is located on the common The U-shaped half-wavelength strip line resonator is arranged, the position of the U-shaped half-wavelength strip line resonator can be flexibly arranged, the structure of the U-shaped half-wavelength strip line resonator is more compact, miniaturization of the filter is effectively achieved, the coupling strength of the U-shaped half-wavelength strip line resonator and the cavity of the SIW resonator can be well controlled by adjusting the bending degree of the U-shaped half-wavelength strip line resonator. The method is suitable for various wireless communication systems.

The utility model aims to provide a differential filter. The differential filter comprises a bottom layer and a top layer which are arranged on a dielectric substrate, the bottom layer comprises two pairs of coplanar strip line resonators I and a phase inverter J, the two pairs of coplanar strip line resonators I are parallel to each other, and the two pairs of coplanar strip line resonators I are separated by the phase inverter J; the coplanar strip line resonator I is a quarter-wavelength resonator; the top layer comprises two metal wires I, and the two groups of metal wires I are aligned in parallel and are equally divided into two pairs of coplanar strip line resonators II by an inverter K; the metal wire I is a half-wavelength resonator, and the coplanar strip line resonator II is a quarter-wavelength resonator. The filter provided by the utility model can effectively improve the working bandwidth and better meet the broadband requirement.

A sensor element for testing a flat-surface data carrier having a spin resonance feature. The sensor element includes a magnetic core with an air gap, into which the flat-surface data carrier can be inserted for testing, a polarization device for generating a static magnetic flux in the air gap, a resonator device for exciting the spin resonance feature of the data carrier to be tested in the air gap, having at least one stripline resonator fed by a signal source, and a modulation device for generating a time-varying magnetic modulation field in the air gap parallel to the static magnetic field. The modulation device has a plurality of modulation coils, which are designed and configured for generating different modulation frequencies so that the modulated magnetic field generated by the modulation device, together with the polarization device, has different modulation frequencies at different locations within the air gap.

A sensor element is for testing a flat data carrier having a spin resonance feature. The sensor element includes a magnetic core having an air gap, which is delimited by two pole surfaces of the magnetic core and into which the flat data carrier can be inserted in order to be tested, a polarization device for generating a static magnetic flux in the air gap, and a resonator device for exciting the spin resonance feature of the data carrier to be tested in the air gap. The resonator device has a signal source and a plurality of stripline resonators which are simultaneously fed from the signal source, and the stripline resonators are formed in a planar manner with a main extension plane which is plan-parallel to at least one of the pole surfaces of the magnetic core.

The present invention discloses an embedded ceramic microfilter based on a multi-layer thin film, which includes a resonator. The resonator includes a multi-layer dielectric structure and a metal structure, and two taps are respectively connected to both ends of the resonator through microstrip lines. The 1 / 4 wavelength stepped impedance resonator principle is adopted to miniaturize the filter resonator, cross-coupling is introduced, the 1 / 4 wavelength short-circuit microstrip line filter is improved, the microstrip line resonator is improved into a strip line resonator, the grounding distance becomes larger, and the planar size of the resonator can be indirectly reduced, making it further miniaturized. Compared with the filter chip, tap feeding replaces wire bonding, reducing the process difficulty and processing cost, and improving the signal transmission efficiency. The design and production cycle of this filter is short, and the module can be directly connected to other substrates for use, with high flexibility.

The invention discloses a stripline resonator structure and a magnetic tuning trap composed of the resonator structure, belonging to the technical field of electronic components; the stripline resonator structure consists of a stripline central conductor, a stripline outer conductor, a gadolinium gallium garnet crystal and a YIG single crystal film, wherein the stripline central conductor, the YIG single crystal film and the gadolinium gallium garnet crystal are arranged in sequence in the stripline outer conductor; the invention realizes the planarization of the resonator of the magnetic tuning trap, simplifies the design of the stripline resonant circuit structure; adopts the stripline transmission mode, expands the passband operating frequency of the magnetic tuning trap; multiple stripline resonant circuits can be arranged on the same plane, which is easy to integrate multi-channel traps; the resonant circuit adopts multiple single crystal film blocks to form a resonator cascade, effectively suppresses multiple excitation modes of the single crystal film, increases the stopband depth of the trap, and improves the performance of the trap.

A sensor element is for testing a flat data carrier having a spin resonance feature. The sensor element includes a magnetic core having an air gap, which is delimited by two pole surfaces of the magnetic core and into which the flat data carrier can be inserted in order to be tested, a polarization device for generating a static magnetic flux in the air gap, and a resonator device for exciting the spin resonance feature of the data carrier to be tested in the air gap. The resonator device has a signal source and a plurality of stripline resonators which are simultaneously fed from the signal source, and the stripline resonators are formed in a planar manner with a main extension plane which is plan-parallel to at least one of the pole surfaces of the magnetic core.

The application discloses a miniaturized three-passband filter of a substrate integrated waveguide built-in stripline resonator, which is composed of two SIW resonators, two one-end short-circuit and the other-end open-circuit lambda / 4 stripline resonators and two two-end open-circuit lambda / 2 stripline resonators, and the resonators form a three-passband filter in a series topology structure. The application utilizes the TE101 mode of the two SIW resonators, firstly, two one-end short-circuit and the other-end open-circuit lambda / 4 stripline resonators are symmetrically placed in the two SIW resonators to form a two-stage point and double-passband filter, and on the basis, the two one-end short-circuit and the other-end open-circuit lambda / 4 stripline resonators are coupled with the two two-end open-circuit lambda / 2 stripline resonators to form a two-stage point and three-passband filter. By embedding four stripline resonators in the SIW cavity, the miniaturization of the overall structure is realized, and the circuit area can be significantly reduced by about two-thirds while the number and order of passbands are maintained.

The present invention provides a filter patch antenna based on three-dimensional packaging integration. Its main materials include a five-layer dielectric substrate, a four-layer adhesive plate, and an overall circuit structure, which includes a signal transmission metal post, a coupled stripline, a quarter-wavelength stripline resonator, an open-circuit stripline branch, a feed stripline, a microstrip patch, a grounding metal post, and a ground plane. The novel filter antenna proposed in this invention features high integration, miniaturization, high selectivity, a wide stopband, and packaging characteristics, making it well-suited for wireless communication systems.

The present invention discloses a substrate integrated waveguide filter power divider with output port isolation, comprising three substrate integrated waveguide resonators arranged in a product type, and a pair of hook-shaped stripline resonators loaded with resistors and arranged symmetrically back to back. Among them, two hook-shaped stripline resonators are bridged and integrated into the three substrate integrated waveguide resonators arranged in a product type, one substrate integrated waveguide resonator is coupled with two hook-shaped stripline resonators at the same time, and the two hook-shaped stripline resonators are separately coupled with the other two substrate integrated waveguide resonators. A coplanar waveguide transmission line is provided on each substrate integrated waveguide resonator. The present invention utilizes the two anti-phase path cancellations led out by a pair of hook-shaped stripline resonators loaded with resistors, and the dual-channel coupling between the two hook-shaped stripline resonators and the substrate integrated waveguide resonator, to realize a substrate integrated waveguide filter power divider that can take into account both output isolation and size utilization, and has the characteristics of broadband and low loss.