Parameter determination method and device of waveguide bending structure and asymmetric coplanar waveguide
Through the parameter determination method of asymmetric coplanar waveguides, the problem of excitation of odd modes of the coplanar waveguide bending structure is solved, and the signal transmission quality is improved and process simplified is achieved.
Patent Information
- Application Number
- CN202510257914.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2025-06-27
AI Technical Summary
In superconducting quantum chips, the coplanar waveguide curved structure excites the odd mode when transmitting the even mode, resulting in deterioration of transmission line loss. The prior art increases the process difficulty by adding air bridges.
Through a parameter determination method of the waveguide bending structure, the parameters of the waveguide bending structure are determined using the impedance of the asymmetric coplanar waveguide, the central conduction bandwidth and the groove width of the gap, including the length of the gradient stub and the number of compensation units, and an asymmetric coplanar waveguide is constructed to suppress the odd mode.
The suppression of odd modes is achieved, the signal transmission quality is improved, the process flow is simplified, and the production cost is reduced.
Smart Images
Figure CN120221971A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of chip technology, and in particular, to a method and apparatus for determining parameters of a waveguide bending structure and an asymmetric coplanar waveguide. Background Art
[0002] For superconducting quantum chips, coplanar waveguides are currently used to read and control qubit information using microwave measurement and control technology. Since in the structural layout design and actual processing and preparation of multi-qubit chips, the coplanar waveguide bending structure is a common discontinuous structure, and the bending structure will simultaneously excite unwanted odd modes while transmitting even modes, resulting in deterioration of transmission line loss. Currently, an air bridge is usually used to electrically connect the ground planes where the coplanar waveguide structure is split, but adding an air bridge increases the process difficulty. Summary of the Invention
[0003] The present disclosure provides a method and apparatus for determining parameters of a waveguide bending structure and an asymmetric coplanar waveguide to at least solve the above technical problems existing in the prior art.
[0004] According to a first aspect of the present disclosure, there is provided a method for determining parameters of a waveguide bending structure, where the waveguide bending structure is composed of at least one compensation unit, and the compensation unit includes a coplanar waveguide part and an asymmetric coplanar waveguide part; the method includes:
[0005] Based on the impedance of the asymmetric coplanar waveguide, the width of the center conductor strip, and the first slot width of the first slot on the first side of the center conductor strip, determine the second slot width of the asymmetric coplanar waveguide part;
[0006] Based on the width of the center conductor strip, the first slot width of the first slot on the first side of the center conductor strip, and the second slot width of the asymmetric coplanar waveguide part, determine the radius of the center conductor strip;
[0007] Based on the phase or wave path of the reflected wave of the signal in the waveguide bending structure, determine the number of the at least one compensation unit;
[0008] Based on the second slot width of the asymmetric coplanar waveguide part, the radius of the center conductor strip, and the number of the at least one compensation unit, determine the waveguide bending structure.
[0009] In the above solution, the method further includes:
[0010] There is a tapered stub between the coplanar waveguide part and the asymmetric coplanar waveguide part, and the length of the tapered stub is equal to the second slot width of the asymmetric coplanar waveguide part.
[0011] In the above solution, determining the second slot width of the asymmetric coplanar waveguide part based on the impedance of the asymmetric coplanar waveguide, the width of the center conductor strip, and the first slot width of the first slot on the first side of the center conductor strip includes:
[0012] Under the condition that the impedance of the asymmetric coplanar waveguide remains unchanged, determine the second slot width of the asymmetric coplanar waveguide part based on the relative dielectric constant, the width of the center conductor strip, and the first slot width of the first slot on the first side of the center conductor strip.
[0013] In the above solution, determining the radius of the center conductor strip based on the width of the center conductor strip, the first slot width of the first slot on the first side of the center conductor strip, and the second slot width of the asymmetric coplanar waveguide part includes:
[0014] Based on the impedance corresponding to the first structure in the asymmetric coplanar waveguide corresponding to the waveguide bending structure, the width of the center conductor strip, the first slot width of the first side slot, the second slot width of the asymmetric coplanar waveguide part, the relative dielectric constant, and the substrate thickness of the asymmetric coplanar waveguide, determine the radius of the center conductor strip.
[0015] In the above solution, determining the number of the at least one compensation unit based on the phase or the wave path of the reflected wave of the signal in the waveguide bending structure includes:
[0016] Based on the wavelength of the signal in the medium corresponding to the waveguide bending structure, determine the corresponding value when the phase difference between adjacent reflected waves of the signal in the waveguide bending structure is π / 2, which is the number of the at least one compensation unit.
[0017] In the above solution, determining the number of the at least one compensation unit based on the phase or the wave path of the reflected wave of the signal in the waveguide bending structure includes:
[0018] The wavelength of the signal in the medium corresponding to the waveguide bending structure is determined based on the effective dielectric constant and the frequency of the signal;
[0019] The effective dielectric constant is determined based on the width of the center conductor strip, the first slot width of the first slot on the first side of the center conductor strip, and the second slot width of the asymmetric coplanar waveguide part.
[0020] In the above solution, determining the number of the at least one compensation unit based on the phase or the wave path of the reflected wave of the signal in the waveguide bending structure includes:
[0021] Based on the difference between the wave path of the signal in the first slot on the first side of the center conductor strip and the wave path of the signal in the second slot on the second side of the center conductor strip, determine the number of the at least one compensation unit;
[0022] Wherein, the second slot on the second side of the center conductor strip includes the waveguide bending structure and the first structure.
[0023] According to a second aspect of the present disclosure, an asymmetric coplanar waveguide is provided. The asymmetric coplanar waveguide includes a center conductor strip, a slot on the first side of the center conductor strip, and a slot on the second side of the center conductor strip; the slot on the second side includes a waveguide bending structure, and the waveguide bending structure is constructed based on the parameters determined by the above method.
[0024] The slot width of the slot on the first side of the center conductor strip is a first slot width.
[0025] The slot on the second side includes a first structure, and the width of the first structure is the first slot width.
[0026] The first structure is composed of two independent linear slots, and one ends of the two independent linear slots are respectively connected to the waveguide bending structure.
[0027] According to a third aspect of the present disclosure, an apparatus for determining parameters of a waveguide bending structure is provided. The waveguide bending structure is composed of at least one compensation unit, and the compensation unit includes a coplanar waveguide part, an asymmetric coplanar waveguide part, and a tapered stub; the method includes:
[0028] A slot width determination unit for determining a second slot width of the asymmetric coplanar waveguide part based on the impedance of the asymmetric coplanar waveguide, the width of the center conductor strip, and the first slot width of the slot on the first side of the center conductor strip.
[0029] A radius determination unit for determining the radius of the center conductor strip based on the width of the center conductor strip, the first slot width of the slot on the first side of the center conductor strip, and the second slot width of the asymmetric coplanar waveguide part.
[0030] A period determination unit for determining the number of the at least one compensation unit based on the phase or the wave path of the reflected wave of the signal in the waveguide bending structure.
[0031] A determination unit for determining the waveguide bending structure based on the second slot width of the asymmetric coplanar waveguide part, the radius of the center conductor strip, and the number of the at least one compensation unit.
[0032] According to a fourth aspect of the present disclosure, an electronic device is provided, including:
[0033] At least one processor; and
[0034] A memory communicatively connected to the at least one processor; wherein,
[0035] The memory stores instructions executable by the at least one processor, and when the instructions are executed by the at least one processor, the at least one processor is enabled to execute the method of the present disclosure.
[0036] A method for determining parameters of a waveguide bending structure according to the present disclosure determines the second slot width of the asymmetric coplanar waveguide part based on the impedance of the asymmetric coplanar waveguide, the width of the center conductor strip, and the first slot width of the first slot on the first side of the center conductor strip; determines the radius of the center conductor strip based on the width of the center conductor strip, the first slot width of the first slot on the first side of the center conductor strip, and the second slot width of the asymmetric coplanar waveguide part; determines the number of the at least one compensation unit based on the phase or the wave path of the reflected wave of the signal in the waveguide bending structure; determines the waveguide bending structure based on the second slot width of the asymmetric coplanar waveguide part, the radius of the center conductor strip, and the number of the at least one compensation unit; thus, it transitions from the traditional symmetric coplanar waveguide to an asymmetric coplanar waveguide structure, realizes the suppression of the odd mode, and improves the signal transmission quality; in addition, according to the impedance formulas of the coplanar waveguide part and the asymmetric coplanar waveguide part, an equal-impedance design is carried out on the waveguide bending structure, and the transition part is connected in equal proportion, having better insertion loss and return loss.
[0037] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it used to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0038] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features, and advantages of the exemplary embodiments of the present disclosure will become easily understood. In the drawings, several embodiments of the present disclosure are shown in an exemplary but non-limiting manner, wherein:
[0039] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.
[0040] Figure 1 Shows a schematic diagram of a uniform coplanar waveguide in the related art;
[0041] Figure 2 Shows a schematic diagram of an asymmetric coplanar waveguide in the related art;
[0042] Figure 3 Shows a first optional flow schematic diagram of a method for determining parameters of a waveguide bending structure provided by an embodiment of the present disclosure;
[0043] Figure 4 Shows a schematic diagram of the structure of an asymmetric coplanar waveguide provided by an embodiment of the present disclosure;
[0044] Figure 5 Shows a second optional flow schematic diagram of a method for determining parameters of a waveguide bending structure provided by an embodiment of the present disclosure;
[0045] Figure 6The figure shows an apparatus for determining parameters of a waveguide bending structure provided by an embodiment of the present disclosure;
[0046] Figure 7 The figure shows a schematic structural diagram of a composition of an electronic device according to an embodiment of the present disclosure. Detailed implementation manners
[0047] To make the objectives, features, and advantages of the present disclosure more obvious and understandable, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are only a part rather than all of the embodiments of the present disclosure. Based on the embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.
[0048] In the following descriptions, reference is made to "some embodiments", which describe a subset of all possible embodiments. However, it can be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.
[0049] In the following descriptions, the terms "first / second" are only used to distinguish similar objects, and do not represent a specific order for the objects. It can be understood that "first / second" can be interchanged with a specific order or sequence when allowed, so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein.
[0050] Unless otherwise defined, all technical and scientific terms used in the present disclosure have the same meanings as those commonly understood by those of ordinary skill in the technical field to which the present disclosure belongs. The terms used in the present disclosure are only for the purpose of describing the embodiments of the present disclosure, and are not intended to limit the present disclosure.
[0051] It should be understood that in various embodiments of the present disclosure, the magnitude of the sequence number of each implementation process does not mean the order of execution. The order of execution of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present disclosure.
[0052] Before further elaborating on the embodiments of the present disclosure, the nouns and terms involved in the embodiments of the present disclosure are described. The nouns and terms involved in the embodiments of the present disclosure are subject to the following explanations.
[0053] Figure 1 The figure shows a schematic diagram of a uniform coplanar waveguide in the related art.
[0054] Coplanar waveguides have been increasingly widely used due to their advantages such as easy series and parallel connection, low loss, low dispersion, and high integration. The coplanar waveguide bending structure is a common discontinuity structure, and its impact on the circuit transmission characteristics cannot be ignored. The asymmetry at the bend of the coplanar waveguide causes a path difference in the propagation of signals in the two slots, resulting in inconsistent phases of the signals on both sides and exciting odd modes. As Figure 1 shown, the propagation distances of the signal (or electromagnetic wave) in slot 1 and slot 2 are different. This difference leads to a phase difference in the transmitted signal and excites odd modes, but this kind of odd mode is not needed and should be suppressed. To suppress this odd mode, the method of adding an air bridge is usually adopted to balance the electric potential on both sides. However, this method increases the complexity of the process and will affect the impedance of the entire transmission line, deteriorating the overall impedance matching.
[0055] Figure 2 shows a schematic diagram of an asymmetric coplanar waveguide in the related art.
[0056] The asymmetric coplanar waveguide is developed on the basis of the coplanar waveguide, and the gap widths between the center conductor strip and the ground on both sides are different, as Figure 2 shown. Compared with the traditional coplanar waveguide, the asymmetric coplanar waveguide has an additional design parameter, so it has higher design flexibility and a wider optimization space. At the same time, for the fine-tuning after processing, it is difficult to achieve for the traditional coplanar waveguide by symmetrically changing the slot widths on both sides, while for the asymmetric coplanar waveguide, only the slot width on one side needs to be changed, which is easy to adjust and achieve.
[0057] For superconducting quantum chips, the coplanar waveguide structure is currently used to read and control qubit information using microwave measurement and control technology. Due to the structural layout design and actual processing and preparation of multi-qubit chips, the coplanar waveguide bending structure is a common discontinuity structure, and the bending structure will excite unnecessary odd modes while transmitting even modes, resulting in the deterioration of the transmission line loss. Currently, the form of an air bridge is usually used to electrically connect the split ground planes of the coplanar waveguide structure, but the method of adding an air bridge increases the process difficulty.
[0058] In the traditional design, the method of suppressing odd-mode transmission in the coplanar waveguide bending structure is mainly to connect an air bridge across the ground plane to form a short circuit for odd modes, with less impact on even modes. However, this method increases the process flow and process difficulty and is not conducive to the stability design of the chip.
[0059] In view of the defects in the related art, the embodiments of the present disclosure provide a method for determining parameters of a waveguide bending result and a coplanar waveguide to solve some or all of the above technical problems.
[0060] Figure 3FIG. 0 shows a first alternative flowchart of a method for determining parameters of a waveguide bending structure provided by an embodiment of the present disclosure. Figure 4 FIG. 2 shows a schematic structural diagram of an asymmetric coplanar waveguide, which will be described according to each step.
[0061] As Figure 4 shown, the asymmetric coplanar waveguide includes a center conductor strip, a first-side slot of the center conductor strip, and a second-side slot of the center conductor strip; the second-side slot includes a waveguide bending structure and a first structure; the waveguide bending structure includes at least one compensation unit. The slot width of the first-side slot of the center conductor strip is a first slot width; the second-side slot includes a first structure, and the width of the first structure is the first slot width; the first structure is composed of two independent linear slots, and one end of each of the two independent linear slots is connected to the waveguide bending structure. The periodic structure includes a coplanar waveguide part and an asymmetric coplanar waveguide part, and there is a tapered stub between the coplanar waveguide part and the asymmetric coplanar waveguide part. The length of the tapered stub is equal to the second slot width of the asymmetric coplanar waveguide part.
[0062] Step S301: Determine the second slot width of the asymmetric coplanar waveguide part based on the impedance of the asymmetric coplanar waveguide, the width of the center conductor strip, and the first slot width of the first-side slot of the center conductor strip.
[0063] In some embodiments, as Figure 4 shown, the waveguide bending structure includes at least one compensation unit. In each compensation unit, there is a coplanar waveguide part (with a slot width of the first slot width) and a non-coplanar waveguide part (with a slot width of the second slot width); there is a tapered stub between the coplanar waveguide part and the non-coplanar waveguide part. To construct the waveguide bending structure, the radius R of the center band arc, the second slot width of the asymmetric coplanar waveguide part in the compensation unit, the first slot width, and the number of compensation units are required.
[0064] In some embodiments, in order to reduce the problem of adjusting other parameters due to the change in the impedance of the asymmetric coplanar waveguide, with the condition that the impedance of the asymmetric coplanar waveguide remains unchanged, determine the second slot width of the asymmetric coplanar waveguide part based on the width of the center conductor strip and the first slot width of the first-side slot of the center conductor strip.
[0065] Step S302: Determine the radius of the center conductor strip based on the width of the center conductor strip, the first slot width of the first-side slot of the center conductor strip, and the second slot width of the asymmetric coplanar waveguide part.
[0066] In some embodiments, the carrier for implementing the parameter determination method of the waveguide bending structure (hereinafter referred to as the carrier) calculates the radius of the center conductor strip based on the characteristic impedance of the waveguide bending structure by quantifying the influence of the asymmetric gap on the field distribution. The carrier can be a computer program, electronic circuit, database, mobile application, electronic device, cloud computing platform, distributed system, artificial intelligence framework, mathematical model, automation tool, microcontroller, etc., which are software or hardware capable of implementing algorithms and method flows.
[0067] Step S303: Determine the number of the at least one compensation unit based on the phase or the wave path of the reflected wave of the signal in the waveguide bending structure.
[0068] In some embodiments, the carrier can determine the corresponding value when the phase difference between adjacent reflected waves of the signal in the waveguide bending structure is π / 2 based on the wavelength of the signal in the medium corresponding to the waveguide bending structure, and use this value as the number of the at least one compensation unit. That is, when the phase difference between adjacent reflected waves of the signal in the waveguide bending structure is π / 2, the influence of adjacent reflected waves can be cancelled out.
[0069] In other embodiments, the carrier can determine the number of at least one compensation unit based on the difference between the wave path of the signal in the gap on the first side of the center conductor strip and the wave path of the signal in the gap on the second side of the center conductor strip; wherein, as Figure 4 shown, the gap on the second side of the center conductor strip includes the waveguide bending structure and the first structure.
[0070] Step S304: Determine the waveguide bending structure based on the second slot width of the asymmetric coplanar waveguide part, the radius of the center conductor strip, and the number of the at least one compensation unit.
[0071] In some embodiments, the carrier constructs the waveguide bending structure and the compensation unit in the waveguide bending structure based on the second slot width of the asymmetric coplanar waveguide part, the radius of the center conductor strip, and the number of the at least one compensation unit.
[0072] In this way, through the parameter determination method of the waveguide bending structure provided by the embodiments of the present disclosure, the suppression of the odd mode is achieved, and the transmission quality of the transmission line is improved. This improvement method has a simple process implementation, and only needs to process one side of the metal layer, which is convenient for design, easy to modify, and can effectively reduce the manufacturing cost.
[0073] Figure 5 FIG. shows a second optional flowchart of the parameter determination method of the waveguide bending structure provided by the embodiments of the present disclosure, and will be described according to each step.
[0074] Step S501: On the condition that the impedance of the asymmetric coplanar waveguide remains unchanged, determine the second slot width of the asymmetric coplanar waveguide part based on the relative dielectric constant, the width of the center conductor strip, and the first slot width of the first slot on the first side of the center conductor strip.
[0075] In some embodiments, the expression for the coplanar waveguide impedance is:
[0076]
[0077] where ε r is the relative dielectric constant, w c is the width of the center conductor strip of the coplanar waveguide, w s is the slot width of the slots on both sides of the center conductor strip, and RoE(K) is a function defined by the ratio of the elliptic integral and the complementary modulus of the modulus K.
[0078] In the following embodiments, the expression for the impedance of the ideal asymmetric coplanar waveguide is:
[0079]
[0080] where, ε r is the relative dielectric constant, w c is the width of the center conductor strip of the asymmetric coplanar waveguide, w s1 is the first slot width of the first slot on the first side of the center conductor strip, which is also the width of the asymmetric coplanar waveguide part in the compensation unit, w s2 is the second slot width of the asymmetric coplanar waveguide part in the compensation unit. RoE(K) is a function defined by the elliptic integral and the complementary modulus of the modulus K, and its value can only be obtained through numerical calculation or by looking up a table, and it is a monotonically increasing function.
[0081] Therefore, in order to keep the impedance value of the asymmetric coplanar waveguide part unchanged, the asymmetric coplanar waveguide needs to satisfy unchanged. It can be seen from this that a sufficient condition for the equal impedance of the asymmetric coplanar waveguide can be: when the width of the center conductor strip, the first slot width, and the second slot width of the asymmetric coplanar waveguide are adjusted in a certain proportion, the impedance remains unchanged.
[0082] Step S502: Based on the impedance, the width of the center conductor strip, the first slot width of the first slot on the first side, the second slot width of the asymmetric coplanar waveguide part, the relative dielectric constant, and the substrate thickness of the coplanar waveguide corresponding to the first structure in the asymmetric coplanar waveguide of the waveguide bending structure, determine the radius of the center conductor strip.
[0083] In some embodiments, the radius of the center conductor strip is a core parameter for balancing compactness and transmission performance. It is related to the width of the center conductor strip, the slots w s2 and w s1The geometric relationship can be analyzed jointly through theoretical models and numerical simulations. The electromagnetic field distribution of the waveguide bending structure is different from that of the first structure (i.e., the straight-through section), resulting in a change in characteristic impedance. Based on the quasi-static approximation, the characteristic impedance Z(R) of the waveguide bending structure can be expressed as:
[0084]
[0085] where Z1 represents the characteristic impedance of the first structure, w s1 represents the first slot width on the first side of the center conductor strip, w s2 represents the second slot width on the second side of the center conductor strip (i.e., the second slot width of the asymmetric waveguide part in the compensation unit), ε r represents the relative dielectric constant of the substrate of the asymmetric coplanar waveguide, h represents the thickness of the asymmetric coplanar waveguide, w c represents the width of the center conductor strip, and R represents the radius of the center conductor strip.
[0086] The physical meanings are respectively: quantifying the influence of the waveguide bending structure on the field distribution. The larger the w s2 / w s1 , the more significant the field leakage on the outer side, and a larger R compensation is required; the coupling effect between the substrate parameters and the width of the center conductor strip. A high relative dielectric constant or a thick substrate enhances the field confinement and allows a smaller radius R.
[0087] When the impedance difference between the waveguide bending structure and the impedance of the first part is less than 5%, the corresponding radius is the minimum radius, that is needs to be less than 5%, and after transformation, we can get
[0088]
[0089] Step S503, determining the number of the at least one compensation unit based on the phase or the wave path of the reflected wave of the signal in the waveguide bending structure.
[0090] In some embodiments, in some embodiments, the compensation unit introduces a reflected wave. If the phase difference between adjacent reflected waves is 180, the reflections cancel each other out; the wavelength of the signal in the medium corresponding to the waveguide bending structure is determined based on the effective dielectric constant and the frequency of the signal. The effective dielectric constant is determined based on the width of the center conductor strip, the first slot width of the gap on the first side of the center conductor strip, and the second slot width of the asymmetric coplanar waveguide part.
[0091] Specifically, it needs to satisfy: where T represents the number of compensation units, λ g represents the wavelength in the medium of the asymmetric coplanar waveguide, where c represents the speed of light and f represents the frequency of the signal. ε effis the effective dielectric constant of the substrate of the asymmetric coplanar waveguide, and its relationship with the dielectric constant is: where K(k) is the complete elliptic integral of the first kind,
[0092] In summary, the period T can be expressed as where K(k) is the complete elliptic integral of the first kind, and is
[0093] The period T refers to the connection of the asymmetric coplanar waveguide and the tapered stub line in the compensation unit. The lengths of the asymmetric coplanar waveguide and the tapered stub line are equal and evenly distributed.
[0094] In some other embodiments, the carrier determines the number of at least one compensation unit based on the difference in the signal path lengths between the first side gap of the center conductor strip and the second side gap of the center conductor strip; wherein, the second side gap of the center conductor strip includes the waveguide bending structure and the first structure.
[0095] Specifically, the signal passes through a longer path through the first side gap than the second side gap, and the path difference is: By adjusting the number of compensation units, the path difference is made 0, so as to achieve phase balance in the signal transmission on both sides of the center conductor strip.
[0096] In this way, through the parameter determination method of the waveguide bending structure provided by the embodiments of the present disclosure, the suppression of the odd mode is realized, and the transmission quality of the transmission line is improved. This improvement method is simple to implement in technology, and only needs to process one side of the metal layer. The design is convenient, easy to modify, and can effectively reduce the manufacturing cost.
[0097] Figure 6 The parameter determination device of the waveguide bending structure provided by the embodiments of the present disclosure is shown, and will be described according to each part.
[0098] In some embodiments, the waveguide bending structure is composed of at least one compensation unit, and the compensation unit includes a coplanar waveguide part and an asymmetric coplanar waveguide part; the parameter determination device 600 of the waveguide bending structure includes: a slot width determination unit 601, a radius determination unit 602, a period determination unit 603, and a construction unit 604.
[0099] The slot width determination unit 601 is configured to determine the second slot width of the asymmetric coplanar waveguide part based on the impedance of the asymmetric coplanar waveguide, the width of the center conductor strip, and the first slot width of the first side gap of the center conductor strip;
[0100] The radius determination unit 602 is configured to determine the radius of the center conductor strip based on the width of the center conductor strip, the first slot width of the first side gap of the center conductor strip, and the second slot width of the asymmetric coplanar waveguide part;
[0101] A period determination unit 603, configured to determine the number of the at least one compensation unit based on the phase or the wave path of the reflected wave of the signal in the waveguide bending structure;
[0102] A construction unit 604, configured to determine the waveguide bending structure based on the second slot width of the asymmetric coplanar waveguide portion, the radius of the center conductor strip, and the number of the at least one compensation unit.
[0103] In some embodiments, there is a tapered stub between the coplanar waveguide portion and the asymmetric coplanar waveguide portion, and the length of the tapered stub is equal to the second slot width of the asymmetric coplanar waveguide portion.
[0104] The slot width determination unit 601 is specifically configured to determine the second slot width of the asymmetric coplanar waveguide portion based on the relative dielectric constant, the width of the center conductor strip, and the first slot width of the first side gap of the center conductor strip on the condition that the impedance of the asymmetric coplanar waveguide remains unchanged.
[0105] The radius determination unit 602 is specifically configured to determine the radius of the center conductor strip based on the impedance corresponding to the first structure in the asymmetric coplanar waveguide corresponding to the waveguide bending structure, the width of the center conductor strip, the first slot width of the first side gap, the second slot width of the asymmetric coplanar waveguide portion, the relative dielectric constant, and the substrate thickness of the asymmetric coplanar waveguide.
[0106] The period determination unit 603 is specifically configured to determine the number of the at least one compensation unit based on the phase or the wave path of the reflected wave of the signal in the waveguide bending structure, including:
[0107] Based on the wavelength of the signal in the medium corresponding to the waveguide bending structure, determining the value corresponding to the phase difference of π / 2 between adjacent reflected waves of the signal in the waveguide bending structure as the number of the at least one compensation unit.
[0108] The period determination unit 603 is specifically configured to determine the wavelength of the signal in the medium corresponding to the waveguide bending structure based on the effective dielectric constant and the frequency of the signal;
[0109] The effective dielectric constant is determined based on the width of the center conductor strip, the first slot width of the first side gap of the center conductor strip, and the second slot width of the asymmetric coplanar waveguide portion.
[0110] The period determination unit 603 is specifically configured to determine the number of the at least one compensation unit based on the difference between the wave path of the signal in the first side gap of the center conductor strip and the wave path of the signal in the second side gap of the center conductor strip;
[0111] Wherein, the second side gap of the center conductor strip includes the waveguide bending structure and the first structure.
[0112] According to an embodiment of the present disclosure, the present disclosure also provides an electronic device and a readable storage medium.
[0113] Figure 7 FIG. shows a schematic block diagram of an exemplary electronic device 800 that can be used to implement embodiments of the present disclosure. The electronic device is intended to represent various forms of digital computers, such as, for example, a laptop computer, a desktop computer, a workbench, a personal digital assistant, a server, a blade server, a mainframe computer, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as, for example, a personal digital processor, a cellular phone, a smart phone, a wearable device, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely exemplary and are not intended to limit the implementation of the present disclosure described and / or claimed herein.
[0114] As Figure 7 shown, the electronic device 800 includes a computing unit 801 that can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) 802 or a computer program loaded from a storage unit 808 into a random access memory (RAM) 803. In the RAM 803, various programs and data required for the operation of the electronic device 800 can also be stored. The computing unit 801, the ROM 802, and the RAM 803 are connected to each other via a bus 804. An input / output (I / O) interface 805 is also connected to the bus 804.
[0115] A plurality of components in the electronic device 800 are connected to the I / O interface 805, including: an input unit 806, such as a keyboard, a mouse, etc.; an output unit 807, such as various types of displays, speakers, etc.; a storage unit 808, such as a magnetic disk, an optical disk, etc.; and a communication unit 809, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 809 allows the electronic device 800 to exchange information / data with other devices via a computer network such as the Internet and / or various telecommunication networks.
[0116] The computing unit 801 can be various general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the computing unit 801 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The computing unit 801 executes the various methods and processes described above, such as the method for determining the parameters of the waveguide bending structure. For example, in some embodiments, the method for determining the parameters of the waveguide bending structure can be implemented as a computer software program, which is tangibly incorporated in a machine-readable medium, such as the storage unit 808. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 800 via the ROM 802 and / or the communication unit 809. When the computer program is loaded into the RAM 803 and executed by the computing unit 801, one or more steps of the method for determining the parameters of the waveguide bending structure described above can be executed. Alternatively, in other embodiments, the computing unit 801 can be configured to execute the method for determining the parameters of the waveguide bending structure by any other suitable means (e.g., by means of firmware).
[0117] Various embodiments of the systems and techniques described above in this document can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include: being implemented in one or more computer programs, which can be executed and / or interpreted on a programmable system including at least one programmable processor, the programmable processor can be a special or general programmable processor, can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit the data and instructions to the storage system, the at least one input device, and the at least one output device.
[0118] The program code for implementing the methods of the present disclosure can be written in any combination of one or more programming languages. These program codes can be provided to the processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing devices, such that when the program codes are executed by the processor or controller, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The program codes can be executed entirely on the machine, partially on the machine, as an independent software package partially on the machine and partially on a remote machine, or entirely on a remote machine or server.
[0119] In the context of this disclosure, a machine-readable medium can be a tangible medium that can contain or store a program for use by or in connection with an instruction execution system, apparatus, or device. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
[0120] In order to provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the computer. Other kinds of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).
[0121] The systems and techniques described herein can be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer having a graphical user interface or a web browser through which the user can interact with an implementation of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), and the Internet.
[0122] A computer system can include a client and a server. The client and the server are generally remote from each other and typically interact through a communication network. The client-server relationship is generated by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, can also be a server of a distributed system, or a server incorporating a blockchain.
[0123] It should be understood that the various forms of processes shown above can be used, with steps reordered, added or deleted. For example, the steps described in this disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this is not limited herein.
[0124] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this disclosure, "a plurality" means two or more, unless otherwise specifically defined.
[0125] As described above, this is only the specific implementation manner of this disclosure, but the protection scope of this disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed in this disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of this disclosure. Therefore, the protection scope of this disclosure should be subject to the protection scope of the claimed rights.
Claims
1. A method for determining parameters of a waveguide bending structure, characterized in that: The waveguide bending structure is composed of at least one compensation unit, and the compensation unit includes a coplanar waveguide part and an asymmetric coplanar waveguide part; the method includes: Determining a second slot width of the asymmetric coplanar waveguide portion based on the impedance of the asymmetric coplanar waveguide, the width of the central guide strip, and the first slot width of the slot on the first side of the central guide strip; Determining a radius of the central guide strip based on the width of the central guide strip, a first slot width of a first side slot of the central guide strip, and a second slot width of the asymmetric coplanar waveguide portion; Determining the number of the at least one compensation unit based on the reflected wave phase or wave path of the signal in the waveguide bending structure; The waveguide bending structure is determined based on the second slot width of the asymmetric coplanar waveguide portion, the radius of the central guide strip, and the number of the at least one compensation unit.
2. The method according to claim 1, characterized in that The method further comprises: There is a tapered stub between the coplanar waveguide portion and the asymmetric coplanar waveguide portion, and the length of the tapered stub is equal to the second slot width of the asymmetric coplanar waveguide portion.
3. The method according to claim 1, characterized in that The determining of the second slot width of the asymmetric coplanar waveguide portion based on the impedance of the asymmetric coplanar waveguide, the width of the central guide strip, and the first slot width of the first side slot of the central guide strip comprises: Under the condition that the impedance of the asymmetric coplanar waveguide remains unchanged, the second slot width of the asymmetric coplanar waveguide part is determined based on the relative dielectric constant, the width of the central guide strip, and the first slot width of the slot on the first side of the central guide strip.
4. The method according to claim 1, characterized in that: The step of determining the radius of the central guide strip based on the width of the central guide strip, the first slot width of the first side slot of the central guide strip, and the second slot width of the asymmetric coplanar waveguide portion comprises: The radius of the central guide band is determined based on the impedance corresponding to the first structure in the asymmetric coplanar waveguide corresponding to the waveguide bending structure, the width of the central guide band, the first slot width of the first side slot, the second slot width of the asymmetric coplanar waveguide part, the relative dielectric constant and the substrate thickness of the asymmetric coplanar waveguide.
5. The method according to claim 1, characterized in that The determining the number of the at least one compensation unit based on the reflected wave phase or wave path of the signal in the waveguide bending structure comprises: Based on the wavelength of the signal in the medium corresponding to the waveguide bending structure, a value corresponding to a phase difference of π / 2 between adjacent reflected waves of the signal in the waveguide bending structure is determined as the number of the at least one compensation unit.
6. The method according to claim 5, characterized in that The step of determining, based on the wavelength of the signal in the medium corresponding to the waveguide bending structure, a value corresponding to a phase difference of π / 2 between adjacent reflected waves of the signal in the waveguide bending structure as the number of the at least one compensation unit, comprises: The wavelength of the signal in the medium corresponding to the waveguide bending structure is determined based on the effective dielectric constant and the frequency of the signal; The effective dielectric constant is determined based on the width of the central conducting strip, the first slot width of the slot at the first side of the central conducting strip, and the second slot width of the asymmetric coplanar waveguide portion.
7. The method according to claim 1, characterized in that The determining the number of the at least one compensation unit based on the reflected wave phase or wave path of the signal in the waveguide bending structure comprises: Determining the number of at least one compensation unit based on a difference between a wave path of a signal in a slot on a first side of the central conductive strip and a wave path of a signal in a slot on a second side of the central conductive strip; Wherein, the second side gap of the central guide strip includes the waveguide bending structure and the first structure.
8. An asymmetric coplanar waveguide, characterized in that: The asymmetric coplanar waveguide comprises a central guide strip, a first side slot of the central guide strip, and a second side slot of the central guide strip; the second side slot comprises a waveguide bending structure, and the waveguide bending structure is constructed based on the parameters determined by the method according to claims 1 to 7; The slot width of the first side gap of the central guide belt is the first slot width; The second side gap includes a first structure, and the width of the first structure is a first slot width; The first structure is composed of two independent linear slots, and one end of the two independent linear slots is respectively connected to the waveguide bending structure.
9. A device for determining parameters of a waveguide bending structure, characterized in that: The waveguide bending structure is composed of at least one compensation unit, and the compensation unit includes a coplanar waveguide part and an asymmetric coplanar waveguide part; the device includes: a slot width determining unit, configured to determine a second slot width of the asymmetric coplanar waveguide portion based on the impedance of the asymmetric coplanar waveguide, the width of the central guide strip, and the first slot width of the slot on the first side of the central guide strip; a radius determination unit, configured to determine the radius of the central guide strip based on the width of the central guide strip, a first slot width of the first side slot of the central guide strip, and a second slot width of the asymmetric coplanar waveguide portion; a period determination unit, configured to determine the number of the at least one compensation unit based on a reflected wave phase or a wave path of a signal in the waveguide bending structure; A determining unit is used to determine the waveguide bending structure based on the second slot width of the asymmetric coplanar waveguide portion, the radius of the central guide strip and the number of the at least one compensation unit.
10. An electronic device, characterized in that: include: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method according to any one of claims 1 to 7.