TW548874B - Multiplayer LC resonance balance-to-unbalance - Google Patents

Abstract

A multiplayer LC resonance balance-to-unbalance convertor is disclosed, which comprises a multi-layer LC resonance cavity, the equivalent circuit of this LC resonance cavity comprises at least one section of broadside-coupled line, at least one section of transmission line and at least one section of capacitor. Combining the way of LC resonance cavity, multiplayer and meander coupled transmission line, the advantage of greatly reducing the device size, wide operation bandwidth and using low dielectric material can be achieved. The first preferred embodiment of the LC resonance cavity is basically formed of two sections of broadside-coupled lines, one section of transmission line and a capacitor connected in parallel. The second preferred embodiment is basically formed of one section of coupled line connected to one capacitor and one section of transmission line at each of both ends respectively. Very good phase balance and amplitude balance can still be maintained with multi-layer construction. It is very suitable to be fabricated into a device with the dimension of micro chip, and satisfies the demanding of light, thin, short, small characteristics of the current communication equipment. It can be applied in wireless local area network and personal mobile communication equipment and is economically profitable.

Description

V 548874 V. Description of the invention (1) Field of the invention The present invention relates to a balanced-to-unbalanced converter (b a 1 a n c e-t 0 -unbalance, balun). In particular, it relates to a multilayer LC resonance bbalanced to unbalanced converter (multilayer LC resonance b a 1 u η). This converter is suitable for making micro-chip-sized components, and is used in wireless local network and personal mobile communication equipment. BACKGROUND OF THE INVENTION A balanced-to-unbalanced converter is a device that converts an unbalanced architecture or signal to a balanced architecture or signal. The characteristics of a balanced signal are two signals with equal magnitude but a phase difference of 180 degrees. Many analog circuits often require balanced output and input, which can reduce noise, improve the occurrence of higher harmonics, and increase the dynamic range of the circuit. There are many types of balanced-to-unbalanced converters, mainly divided into active (passive) and passive (passive). Generally, passive balanced-to-unbalanced converters can be divided into three types: lumped type (1 u m p d -1 y p e), winding type (c 0 1 -type) and distributed (type). The lumped type uses lumped capacitors and inductors for impedance matching on the one hand, and a phase difference of 180 degrees and a balance of equal signal sizes on the other. Lumped balance

Page 4 _1 548874 V. Description of the invention (2) The size of the unbalanced converter is small and very light. However, the operating bandwidth is small and it is not easy to maintain the balance of its phase difference and signal size. Wound-balanced balanced-to-unbalanced converters are widely used in lower frequency bands and U H F (u 11 r a high freqency) frequency bands, but when applied beyond UHF frequency bands, there will be excessive 4 dB losses, and the degree of reduction has reached the limit. There are two main types: balanced and unbalanced. There are two types: 180 degree hybrid and Marchand. The 180-degree hybrid balanced-to-unbalanced converter is often used in the microwave band and also has good operating bandwidth characteristics. However, when applied to radio frequency (ra (ii 〇frequency, RF), the frequency is between 200MHz to several GHz. In the meantime, because it is composed of several quarter-wavelength transmission lines, the size is often too large, and it is difficult to reduce its area by a large amount even if a meander is used. For structures with different length transmission lines to produce a 180 degree phase difference, there is also the problem of over-size. The horse-type balanced-to-unbalanced converter most commonly used is a two-quarter wavelength coupling line. The structure is shown in Figure 1. This balanced-to-unbalanced converter has a considerable bandwidth, which not only has a good phase balance but also a good power distribution. Generally speaking, this horse-balanced to-unbalanced converter The transmission line used must have a large amount of coupling in order for its bandwidth to be good. 'Therefore, a method of vertical coupling (broth side coupling) that does not occupy area is selected, and it is suitable to use the zigzag method. The formula is reduced, which is commonly used in RF applications, and it is reduced with the use of high dielectric constant materials.

Page 5 548874 V. Description of the invention (3) In the documents of US Patent Nos. 5,4,97,137, a chip type transformer is disclosed, as shown in FIG. 2. This chip-type converter includes a laminated sheet (; ^ 111] [1181 ^) 200. This laminated sheet is provided with a dielectric substrate (dielectric substrate) 214a to 214e. The five dielectric substrates are fed to Superimposed one on the.other. A ground electrode 216 is formed on a main surface of the first dielectric substrate 214a. A ground electrode 230 is also formed on a main surface of the pen substrate 2i4e. A connecting electrode 22 is formed on a main surface of the second dielectric substrate 214b. A first strip line 2 2 2 is formed on a main surface of the third dielectric substrate 214c. The first strip line 22 2 is formed by a first spiral port ion 2 2 4a and a second spiral portion 2 2 4b. A second strip line 2 2 6 々 and a third strip line 228 are formed on a main surface of the " fourth dielectric substrate 2 14d. The first helical portion 2 2 4 a of a strip line 2 2 2 and the second helical portion 8 2 or 24 b are electromagnetically connected (electr. MagneticaUy.). : The structure of the crystal f-type converter uses a vertical coupling method and is matched with a high dielectric constant material to reduce the size. However, in low dielectrics: materials cannot shrink components to chip size. SUMMARY OF THE INVENTION The present invention overcomes the disadvantages of the conventional balanced-to-unbalanced converter described above. Tho

Page 6 548874 V. Description of the Invention (4) One of the main purposes is to provide a multilayer LC resonant balanced-to-unbalanced converter. The multilayer LC resonant balanced-to-unbalanced converter includes a multilayer LC resonant cavity. The equivalent circuit of the LC resonant cavity includes at least one vertical dissipative line, at least one transmission line, and at least one capacitor. According to the present invention, this multilayer LC resonant balanced-to-unbalanced converter is an integrated LC resonant cavity, multi-layered, and zigzag transmission line, which achieves the purpose of greatly reducing the size of the component, and uses a lower dielectric Constant-to-unbalanced converter made of constant materials. Therefore, it can better achieve the purpose of maintaining the stability of the device characteristics. In addition, since the coupled transmission line of the present invention is completely symmetrical to the structure center point in geometry, it has a good balance between phase and amplitude. Moreover, proper adjustment of the ratio between the coupling line and the capacitor can make the balanced terminal get proper impedance matching. The converter of the present invention is very suitable for wireless local area network and personal mobile communication equipment, and has the advantages of market economy effect. In the architecture of the two preferred embodiments of the present invention, the equivalent circuit of an LC resonant cavity of the first preferred embodiment is composed of two joint lines (coup 1 ed 1 ine), one transmission line, and Made up of a capacitor in parallel. Increasing the parallel capacitance value 5 of this equivalent circuit modestly reduces the design size of the component. The capacitors are even moved above or below the vertically coupled transmission lines to take full advantage of the characteristics of the multilayer circuit architecture to achieve a balanced-to-unbalanced converter that significantly reduces component size.

Page 7 548874 V. Description of the invention (5) The equivalent circuit of an LC resonant cavity of the second preferred embodiment is composed of a coupling line connected in parallel with a capacitor, and a transmission line connected in series at each end. Among them, the LC cavity of the equivalent quarter wave transmission line is connected to the unbalanced end, and the LC cavity of the equivalent half wavelength transmission line is connected to the balanced end. Make full use of the LC resonant cavity principle to achieve the purpose of size reduction. The impedance matching at the balanced end and the balance between amplitude and phase can be obtained by appropriately designing an equivalent half-wavelength LC resonant cavity and two transmission line lengths. In addition, when manufacturing micro-chip-sized components, the multi-layer LC resonant balance-to-unbalance converter coupling wire winding method of the present invention can use a spiral type, a meander type, and a sine wave type ( sinusoidal and triangular winding. The operating benefits of the two preferred embodiments of the present invention, as a result of simulating and measuring the amplitude (amp 1 amplitude) and phase balance characteristics of their signals, the operating frequency is 2. 44 GHz, and the operating bandwidth is 2 0 0 At MHz, the amplitude difference of the signal is within 2 d B and the phase difference is within 5 degrees. The above and other objects and advantages of the present invention are described in detail below in conjunction with the following drawings, detailed description of the embodiments, and the scope of patent applications.

548874 V. Description of the invention (6) Brief description of drawings Figure 1 is a schematic diagram of a conventional horse-type balanced to unbalanced converter. FIG. 2 is a schematic diagram of a conventional chip-type converter. 3a is an equivalent circuit diagram of a first preferred embodiment of an LC resonant cavity of an LC resonant balanced-to-unbalanced converter according to the present invention. Figure 3b is a schematic diagram of Figure 3a as a multi-section vertical coupling line and multiple capacitors connected in parallel. 4a is a schematic diagram of an equivalent circuit of a second preferred embodiment of an LC resonant cavity of an LC resonant balanced-to-unbalanced converter according to the present invention. Figure 4b shows the schematic diagram of Figure 4a as a multi-section vertical fuse line and multiple capacitors connected in parallel. 5 a to 5 d are four implementations of a coupling wire winding according to the present invention, which are respectively a spiral type, a zigzag type, a sine wave type, and a sawtooth type. Figures 6a to 6b use the equivalent circuit of Figure 3a to take advantage of the characteristics of a multi-layer circuit architecture to increase the parallel capacitor value of this equivalent circuit. Two types of spiral coupling wires are used for winding.

548874 V. Description of the invention (7) Figure 7 uses the equivalent circuit of Figure 4a to make use of the principle of the LC cavity and the characteristics of the multilayer circuit structure to achieve the purpose of reducing the size. The meandering coupling wire is used for winding. Figure 8a illustrates the measurement results of the input loss and return loss characteristics of the first preferred embodiment of the present invention. Figure 8b illustrates the measurement results of the amplitude and phase error values of the two balanced output chirp signals according to the first preferred embodiment of the present invention. Figure 9a illustrates the measurement results of the input loss and return loss characteristics of the second preferred embodiment of the present invention. Figure 9b illustrates the measurement results of the amplitude and phase error values of the signals of the two balanced output ports in the second preferred embodiment of the present invention. Description of drawing number 2 0 0 Laminated sheet 2 1 6, 2 3 0 Ground electrode 2 2 2 First strip line 2 2 4 b Second spiral portion 2 2 8 Third strip line 214a ~ 214e First to fifth dielectric Substrate 2 2 0 Connection electrode 2 24a First spiral portion 2 2 6 Second strip line

Page 10 548874 V. Description of the invention (8) 3 0 1 Coupling line (including lines 3 0 1 a and 3 0 2 Coupling line (including lines 3 0 2 a and 3 0 3 Transmission line 3 0 6 With line 3 1 1 Balance Port 313a, 313b Metal wire 3 2 0 Right-most coupling line 3 2 0 a Right-most coupling line 3 2 0 b Right-most coupling line 3 2 1 Left-most coupling line 3 2 1 a Left-most engaging 3 2 1 b CVQ capacitor line of the leftmost coupling line 3 0 1 b) line 302b) 3 0 4 capacitor 7 7 7 ground 3 1 2 a, 3 1 2 b balanced port 31 4a, 314b with Line 3 2 j Coupling line on the right First line part Second line part 3 2 i Coupling line on the left First line part Second line part

4 0 1 Turn-over line (including line 4 0 1 a _ 4031 ~ 403m, 404, 404η 4 1 1 a, 4 1 1 b Transmission line 4 1 3 Balance port 612a ~ 612h Figure 1a first 615a first crossing L 6 2 0 a First output port 624a Line -7 of the first coupling line 4 0 1 b) Capacitor 41 2a, 41 2b Transmission line 414a, 414b Balance port to the eighth dielectric layer 6 1 5 b Second perforation 6 2 0 b 2nd output port_line section

Page 11 548874 V. Description of the invention (9) 6 2 4 b The second line part of the first coupling line 6 2 6 a Brother-Ii Lai I line of the first '--line part 6 2 6 b Brother-I line the line The second line part of the input 6 3 0 is the first electrode part of the CP1 capacitor, and the second electrode part of the CP2 capacitor is 642a to 642k. The first to tenth parts of the dielectric layer 712a to 712i of FIG. 7 Dielectric layers 7 3 2a, 7 3 2b Transmission line Π 5 a! 5 b, 7 丄 5 c Detailed description of the electrode part of the perforated CP capacitor Figure 3a is an LC resonant balanced-to-unbalanced converter according to the present invention A schematic diagram of the equivalent circuit of the first preferred embodiment of the LC resonant cavity. As shown in Figure 3a, the equivalent circuit of this LC resonant cavity 3 0 0 basically consists of two vertical coupling lines 301 (including line 301a and line 301b) and 30 (including line 301) which are far less than a quarter wavelength. 3 0 2 a and line 3 0 2 b), a transmission line 3 03 and a capacitor 3 4 connected in parallel. The line 30 lb in the coupling line 301 and the line 302b in the coupling line 302 each have two ends, which are respectively connected to the balanced port and the ground terminal 777. It can be seen from FIG. 3a that the lines 3 0 1 b and 3 0 2 b are respectively connected to the balance 两 3 1 2 a and 3 1 2 b through two metal lines 3 1 3a and 3 1 3b, and the metal line 3 1 The endpoints of 3 a and 3 1 3 b are the balanced ports 3 1 2 a and 3 1 2 b, respectively. The ends of the inserted transmission line 3 0 3 are separated by two "

548874 V. Description of the invention (ίο) The strip lines 3 14a and 314b are connected to the line 301a in the coupling line 3 01 and the line 3 0 2 a in the coupling line 302. The unbalanced port 31 1 is an input terminal, and is connected to one of the coupling lines through a strip line 3 06, such as the line 3 2 a in 3 2. Because this coupled transmission line is completely symmetrical about the structure's center point on the geometric structure, it has a good balance of phase and amplitude. Moreover, proper adjustment of the ratio of the coupling line and the capacitor can make the balanced terminal get proper impedance matching. In practical applications, the vertical coupling line in this embodiment may use a symmetrical or asymmetric structure, and the inserted transmission line may be a capacitive or inductive transmission line. In addition to increasing the balance of the balanced port, this transmission line can also match the complex impedance of the unbalanced port to the balanced port when the impedance characteristic of the balanced port is a complex type. The equivalent circuit of this LC resonant cavity can be generated as multiple vertical strip wires, and multiple capacitors connected in parallel. Fig. 3b is a schematic diagram of an equivalent circuit of an LC resonant cavity with multiple sections of vertical coupling lines and a plurality of capacitors connected in parallel derived from Fig. 3a, in which the left and right sections of the light-closing wires 3 0 1 and 3 0 2 are inserted. The left and right sides of the transmission line between the two lines generate a multiplicity of consumable lines. A dashed box represents a braided line. Each light line is composed of a first line (iirst 1 ine ρ 〇 rti ο η) And a second line portion, each of which has two ends. The first line portion of each coupling line 3 2 i on the left side of the transmission line 3 0 3 is connected to the first line portion of the adjacent coupling line, and the second line portion is connected to the second line portion of the adjacent coupling line. The same is true for the node coupling lines 3 2 j. Unbalanced 珲 3 1 1 is connected to the left-most coupler by a cable 3 0 6

Page 13 548874 V. Description of the invention (ll) i The first line part 3 21 a of 3 21 is the second U of the leftmost coupling line 3 21. The left end of the sub-j21b is connected to the ground terminal 777. The left end of the leftmost coupling line green μ's first line portion 3 2 1 a and the rightmost coupling line 3 2 0's first ^^ / ^ "'right end is connected in parallel with a plurality of capacitors / rightmost engagement line The right end of the first line of σ 卩 points 3 2 〇b is connected to the ground terminal γ 7. You can reduce f, t, increase the parallel capacitor value of this equivalent circuit moderately, and move half of it to the top = ΐ size. In addition, one of the left and right symmetrical structures can be turned into an up and down symmetrical structure, and the capacitor can be moved to a vertical coupling.

Lu 7 is below a ^ 疋, the balanced end uses perforation to another dielectric layer 2. The layer is long and symmetrically extends the structure of the circuit structure up and down in a symmetrical and central way. Here comes the female φ5 j. Wood & Narita Nakata's reduction of the size of the components from the balance to the non-thousand-balance type conversion will be described in detail in Figures 6a to 讣. This document uses a resonant balanced-to-unbalanced converter to illustrate the equivalent circuit diagram of the dry-best embodiment. As shown in Figure 4a, this LC, the equivalent circuit baseline 401 of the cavity 400 (including the line 40la and line 401h, origin ,, ==========================) A thunderbolt 4in, eight μs are connected in series at the ends of line 401a. 41 "1k ^ 4ϋ3 blades, Λ, xj 1finding green 4 1 1 a and 4 1 1 b, and a belt in parallel ^^ VV'k ^ 12a ^ 412b ^ ^ Ports 414a and 414b are connected: Do not; J is connected; ground terminal. With two balanced lines 4 12a and 4 12b. Friend's Two Passes

548874 V. Description of the invention (12) This structure makes full use of the principle of the LC resonant cavity, thus achieving the purpose of size reduction. The impedance matching and the amplitude and phase balance of the balanced end can be obtained by appropriately designing the lengths of the two transmission lines 412a and 412b. Similarly, in practical applications, the vertical coupling line in this embodiment may use a symmetrical or asymmetrical structure, and the equivalent circuit of this LC resonant cavity may be developed into a plurality of vertical coupling lines ^ and a plurality of parallel coupling lines, respectively. capacitance. Figure 4b is a schematic diagram of an equivalent circuit derived from Figure 4a as a multi-section vertical coupling line. Referring to FIG. 4b, except for one coupling line 401, a plurality of coupling lines are generated. Other electrical connection methods are the same as those in FIG. 4a, and will not be repeated. In FIG. 4b, a dotted box represents a turn line, and each turn line is composed of a first line portion and a second line portion (second 1 ine ρ ο ο ο η). Each of the first line portion and the second line portion has two ends. The first line portion of the coupling line of each section is connected to the first line portion of the adjacent coupling line, and the second line portion is connected to the second line portion of the adjacent coupling line. This equivalent circuit basically consists of a plurality of vertical coupling lines, in which a plurality of capacitors 4 0 3 1 to 4 0 3 m are connected in parallel, and the transmission lines are connected in series to the left and right ends of the first line portion of the leftmost coupling line and the rightmost coupling line, respectively. 411a and 411b, and a plurality of capacitors 4 0 4 1 to 4 0 4 η in parallel, and transmission lines 4 12a and 4 12b connected in series to the left and right ends of the second line portion of the leftmost coupling line and the rightmost coupling line, respectively. Using a multilayer circuit architecture, moving the capacitor above or below the vertically coupled transmission line can greatly reduce the component size, which will be explained in detail in Figure 7.

Page 15 548874 V. Description of the invention (13) According to the present invention, there are various zigzag extensions of the winding way of the coupling wire. Figures 5a to 5d show four implementations of the coupling wire winding according to the present invention, which are spiral, zigzag, sine wave and sawtooth. With this meandering extension method, the present invention can shorten the size of the element plane. Figure 6a to Figure 6b combine the equivalent circuits of Figures 3a and 3b, and use the characteristics of the multilayer circuit architecture to increase the parallel capacitor value of this equivalent circuit, in which two vertical coupling lines connect one capacitor in parallel, and Winding with a spiral coupling wire. In Figure 6a, the capacitor is placed to the left of the vertical turn. In Figure 6b, the capacitor is placed below the vertical coupling line. In order to increase the length of the vertical coupling line to increase the operating bandwidth of the converter, in Figure 6a and Figure 6b, the balanced port is moved to another layer by means of perforation. In FIG. 6a, the balanced-to-unbalanced converter includes first to eighth dielectric layers (612a to 612h), and the eight dielectric layers are stacked upward. The main surfaces of the upper and lower outermost layers 612a and 612h of the first and eighth are the first and second ground planes (ground p 1 a n e), respectively, which are oblique lines. The ground planes can be made of sheet metal. A first via-hole 615a and a first output port 620a are formed on a main surface of the second dielectric layer 612b. The range of the first output 620a is from the center of the main surface toward the upper right side. edge. A second perforation 615b and a second output port 620b are formed on a main surface of the seventh dielectric layer 612g. The range of the second output port 620b is from the center of the main surface toward the upper left edge. Shaped on a major surface of the third dielectric layer 6 1 2 c

Page 16 548874 V. Description of the invention (14) The first range of the first turn line is from the middle of the main surface. At the center of the first wire portion 6 2 6 a of the sixth dielectric layer 6 1, a main surface 62 4 b of the spiral winding layer 612 d is formed, and the range of the first electric portion 6 2 4 b of the capacitor is defined by the main surface. On the right side, the range of the wire (from the first wire portion 6 2 4 to the first wire portion 6 2 6 b of the fifth dielectric layer 612e and the capacitor 626b from the right side of the main surface, the first wire portion of this capacitor 6 2 6 a In the first application, the capacitor can also be a line portion 6 24 a. The core of the first line portion 6 2 4a is spirally wound on a main surface on the right 2f of the main surface to form a second coupling line. This first The range of the line portion 6 2 6 a is formed by the main surface on the right side of the main surface. A second line portion pole portion CPi of a first coupling line and an input port 6 3 0 are formed on the Si dielectric, and this second line The center of the main surface is formed by spiral winding on the left side of the first electrode portion CPi of the main capacitor (composed of the first coupling a and the second wire portion 6 2 4 b). A second second electrode portion CP2 of a second coupling line is formed on the main surface, and the center of the second line portion surface is formed by spiral winding on the main surface. The second electrode portion CP2 is placed on the second coupling line (by two The line part 6 2 6 b is composed of the left side. Actually placed to the right of the vertical coupling line. In Fig. 6b, since the two electrode portions C Pi * CP2 of the capacitor are placed below the vertical coupling line, there are three more dielectric layers than the structure of Fig. 6a, and there are eleven dielectric layers 642a to 642k. The extra three dielectric layers 642h ~ 642j are stacked between the seventh dielectric layer (including the second output port) and the eighth dielectric layer (the second ground layer) in FIG. 6a. The dielectric layer 64 2 h is a third ground layer provided with two perforations. An electrode portion CP of a capacitor is formed on a major surface of the dielectric layer 642i. A capacitor second electrode portion is formed on a major surface of the dielectric layer 642 j

Page 17 548874 V. Description of the invention (15) points (: 2). The winding range of the spiral first coupling line and the second coupling line can also be extended from the center of the main surface from the inside to the entire main surface. In practical applications, the capacitor can also be placed above the vertical coupling line.

Fig. 7 combines the equivalent circuit of Fig. 4a and Fig. 4b with the principle of the LC cavity and the characteristics of the multilayer circuit architecture to achieve the purpose of size reduction. The electrode part CP of the capacitor is placed above a coupling line. The first electrode portion CPi of the second capacitor and the second electrode portion CP2 of the second capacitor are placed below the turning line of this node, and a zigzag Fuhe wire is used for winding. The balance port is also moved to Another dielectric layer. According to the present invention, the LC resonant cavity of the equivalent quarter-wavelength transmission line connected to the unbalanced end, and the LC resonant cavity of the equivalent half-wavelength transmission line connected to the balanced end.

In FIG. 7, the balanced-to-unbalanced converter includes first to ninth dielectric layers 712a to 712i, and the nine dielectric layers are stacked upward. The major surfaces of the first and ninth upper and lower outermost layers 712a and 712i are the first and second ground planes', i.e., the oblique line regions. The electrode portion CP of the first capacitor, the first electrode portion CPi of the second capacitor, and the second electrode portion CP2 of the second capacitor are formed on the second dielectric layer 712b, the seventh dielectric layer 712g, and the eighth dielectric layer, respectively. 712h on a major surface. The first line portion 724a and the second line portion 7 2 4b of a coupling line are formed on a main surface of the fourth dielectric layer 7 1 2 d and the fifth dielectric layer 712 e, respectively, and the transmission lines 732 a, 732 b and the transmission line 746 Formed on the main surfaces of the fifth dielectric layer 712e and the second dielectric layer 712b, respectively

Page 18 548874 V. Description of the invention (16) " I-Application, the transmission line 4Ub in the figure "can be omitted. Add a common ground plane between the electric = ^, two ,,,, and add a third in the figure And the fourth connection is the third dielectric layer 712c and the sixth dielectric layer 712f, respectively, and the holes 7 1 5 b and 7 1 5 C. (No) form a through hole 7 1 5 a and two through holes respectively In the present invention, the coupling wire, transmission line, or ground layer (Au) or nickel (Ni), etc. described in the use of the low-loss metal material w can be used, such as silver (Ag), gold bar (Pd), copper (Cu), Kim ’s design environment for ceramic dielectrics & 4 GHz / multi-layer circuit architecture is inherently equal to 7.8 and the center frequency fQ is equal to 2. 44. The two types derived from Figure 3 and Figure 4 respectively are not Fu Manu divided into two, π / knife, two kinds of devices derived from 圚 ύ and Yuan 4? Operation benefits. The two inventions of LC resonance balance to unbalance conversion S11 I and bismuth X α. Hardwood structure and wheel The return loss in Figure 8a and ga GHz ^ Among them, the characteristic measurement results of · 1 and IS ”I show the rashness of the π Du / Suppression measurement respectively. The configuration axis is the operation of the converter Rate (in the web, (B bits dB). ★ f is 2~3GHz, the vertical axis represents the S parameter measurement transducer consumption) 21

,, six a V u ^. In ancient v. du U B, Di Haotian ’s two daddy ’s serious ^ ^ kind of wave (in the voltage wave knowing circuit, because the measured voltage and electricity are 2) “crossing using the s reference Zhao Γ wave” and its measurement The value obtained will be the characteristic impedance of 2 Z = 34 ~ 2.5αί when a network of relays is connected due to the position not equal to i. The return loss matches the impedance of the designed bandwidth port. ΗΗζ, t is less than -10dB, so energy means that the unbalanced input loss is small. And s21 and S31 represent input losses

548874 V. Description of the invention (17) Consumption, because the energy is evenly distributed in the second port in the set bandwidth, plus the material loss factor, the size value is less than -3d B, -3 dB means that the energy is reduced by 2 One part, the balanced output port receives most of the energy. Figure 8b and Figure 9b illustrate the measurement results of the amplitude and phase error values of the two balanced output port signals of the first architecture and the second architecture, respectively, where the horizontal coordinate represents the operating frequency of the converter (the unit is G Η z), the ordinates represent the error values of the amplitude and phase of the signal, respectively. It can be seen from Fig. 8 and Fig. 9 that at an operating bandwidth of 200 MHz, the amplitude difference of the signal is within 2dB and the phase difference is within 5 degrees.

In summary, the LC resonant balanced-to-unbalanced converter integrated LC resonant cavity, multilayering, and meandering coupling transmission line method of the present invention not only overcomes the shortcomings of the traditional balanced-to-unbalanced converter, but also achieves a significant reduction in component size, It has a large operating bandwidth and can be made of low dielectric materials. Therefore, the cost is reduced, and the stability of component manufacturing is improved. It is suitable for making micro and small chip size components, which can meet the requirements of light, thin, short and small features of today's communication equipment. It can be applied to wireless local area network and personal mobile communication equipment, which has great market economic benefits.

However, the above are only preferred embodiments of the present invention, and the scope of implementation of the present invention cannot be limited by this. That is, all equal changes and modifications made in accordance with the scope of the patent application of the present invention should still fall within the scope of the patent of the present invention.

Page 548874 Simple illustration

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Claims (1)

548874 VI. Application for patents: Line-to-line, one-to-one, one-to-one, one-to-one, inductive, signal-to-capacitance, common-transmission equipment, vibrating mode, part of the input line to the two Langlang, and a second output to the shore-horse line. Unbalanced converter, suitable for non-converter. Contains: Port; The joint line has a shape and is composed of a first and second line part; Inserted between a first link and a second link In the meantime, the transmission line is provided with the first line portion and the other line portion of the transmission line; and the capacitor; the first line portions of the adjacent two sections are connected to each other, the two ends are connected to each other, and one end is connected to the first section and the other end is connected To the at least one of the second section of the coupling line, the line section and the end of the section, the section is divided into two sections, and the phase division is also divided in parallel to the at least the first section and the first section and the first section of the second section. The second line portion of the first capacitor and the second line portion of the matching line are respectively connected to the first line portion, and the input is connected to the first line portion. To the two ground sections and the second frontmost or the most 2. 3. The inductor-capacitor resonant balanced-to-unbalanced converter as described in item 1 of the scope of the patent application, wherein the shape of the coupling line is selected from a spiral shape and a zigzag shape , Sine wave shape and jagged shape. The inductive-capacitive resonant balanced-to-unbalanced converter according to item 1 of the scope of the patent application, wherein the coupling line is a low-loss metal material. Page 22 548874 6. Scope of patent application 4. The inductor-capacitor resonant balanced-to-unbalanced converter described in item 1 of the patent application scope, wherein the transmission line is a low-loss metal material. 5. The inductive-capacitive resonant balanced-to-unbalanced converter as described in item 1 of the scope of the patent application, wherein the converter is achieved by using a multilayer dielectric layer structure and an equivalent circuit of an inductive-capacitive resonant cavity, And the balanced end is through-hole to another dielectric layer. 6. The inductive-capacitive resonant balanced-to-unbalanced converter according to item 5 of the scope of the patent application, wherein the multilayer dielectric layer structure includes at least seven dielectric layers, and the dielectric layers are stacked up, and The seven dielectric layers are called the first dielectric layer to the seventh dielectric layer in sequence from the topmost layer to the bottommost layer, and each dielectric layer has a main surface. The seven-layer dielectric layer is composed of the following dielectric layers. Consisting of: the main surface of the first dielectric layer is a grounded metal surface; a first perforation and the first output port are formed on the main surface of the second dielectric layer; the main surface of the third dielectric layer A first line portion of the first node coupling line is formed thereon; a second line portion of the first node coupling line and the input port are formed on a main surface of the fourth dielectric layer; a main surface of the fifth dielectric layer A second line portion on which the second node coupling line is formed; Page 23 548874 VI. Scope of patent application The first line portion of the second node coupling line is formed on the main surface of the sixth dielectric layer; and a second perforation and the second dielectric line are formed on the main surface of the seventh dielectric layer. The second output port, and the seventh dielectric layer further has a ground metal surface; wherein the at least one capacitor is formed on a main surface of the fourth or fifth dielectric layer. 7. The inductive-capacitive resonant balanced-to-unbalanced converter according to item 6 of the scope of the patent application, wherein the range of the first output port on the main surface of the second dielectric layer is from the center of the main surface Toward the upper right edge, the range of the first line portion on the main surface of the third dielectric layer is formed on the right side of the main surface by the center of the main surface, and the second on the main surface of the fourth dielectric layer The range of the line portion is formed on the right side of the main surface by the center of the main surface, and the range of the second line portion on the main surface of the fifth dielectric layer is formed on the right side of the main surface by the center of the main surface. The range of the first line portion on the main surface of the sixth dielectric layer is formed on the right side of the main surface by the center of the main surface, and the range of the second output port on the main surface of the seventh dielectric layer. The center of the main surface faces the upper left edge, and the at least one capacitor is formed on the left side of the main surface of the fourth or fifth dielectric layer. 8. The inductive-capacitive resonant balanced-to-unbalanced converter as described in item 6 of the scope of patent application, wherein the main surface of the second dielectric layer is Page 24 548874 VI. Patent application scope First edge range The upper right dielectric output of the main heart-shaped surface of the first main electrical plane, the first center of the four-surface surface of the main surface of the dielectric layer on the side layer of the port The main second edge on the main surface of the three main electrical layers, the main heart-shaped surface of the main range dielectric surface is output on the main surface and the surface is formed by the center and main surface of the main surface of the layer. The first main line of the first main surface of the left port is at least one side of the main main surface of the second main surface, and is surrounded by the capacitor surface on the left side of the second surface. The left fan of the main line part in the shape should be expressed by the seven media on the side of the heart facing the first surface, surrounded by the left range of the left line part of the sixth main electrical plane. The main dielectric surface is divided into four sides of the main center or the upper side, and the middle surface of the fifth dielectric surface layer faces the right side of the fifth upper surface. The inductive-capacitive resonant balanced-to-unbalanced converter according to item 5, wherein the multilayer dielectric layer structure includes at least ten dielectric layers, the dielectric layers are stacked upward, and the ten dielectric layers are formed from The topmost layer to the bottommost layer are sequentially referred to as a first dielectric layer to a tenth dielectric layer, and each dielectric layer has a main surface. The ten dielectric layers are composed of the following dielectric layers: The main surface of a dielectric layer is a grounded metal surface; the first output 璋 is formed on the main surface of the second dielectric layer; the first surface of the first node coupling line is formed on the main surface of the third dielectric layer Line section; the first surface of the fourth dielectric layer forms the first section of the first coupling line Page 25 548874 VI. Second line portion of the patent application and the input port; second line portion of the second section coupling line formed on the main surface of the fifth dielectric layer; main surface of the sixth dielectric layer Forming a first line portion of the second node coupling line; forming a second output port on a main surface of the seventh dielectric layer; and the eighth dielectric layer is a ground metal layer, and at least one Perforation; at least one dielectric layer is located below the eighth dielectric layer, and the at least one capacitor is formed on a main surface thereof; and a bottommost dielectric layer, and the dielectric layer is provided with a ground metal surface. 10. The inductive-capacitive resonant balanced-to-unbalanced converter according to item 9 of the scope of the patent application, wherein the range of the first output port on the main surface of the second dielectric layer is from the center of the main surface Toward the upper right edge, the range of the first line portion on the main surface of the third dielectric layer is formed on the main surface from the center of the main surface from the outside to the main surface of the fourth dielectric layer. The range of the second line portion from the center of the main surface is formed on the main surface from the inside to the outside, and the range of the second line portion on the main surface of the fifth dielectric layer is from the center of the main surface to The first line portion on the main surface of the sixth dielectric layer is formed on the main surface from the inside to the outside, and the seventh dielectric layer is formed on the main surface from the center of the main surface to the outside. Of the second output on the main surface Page 26 548874 VI. Patent Application Scope The scope is from the center of the main surface toward the upper left edge. 11. The inductor-capacitor resonant balanced-to-unbalanced converter according to item 5 of the scope of patent application, wherein the multilayer dielectric layer structure includes at least ten dielectric layers, the dielectric layers are stacked upward, and Each dielectric layer has a main surface, and the at least ten dielectric layers are composed of at least the following dielectric layers: a topmost dielectric layer, and the main surface of the topmost dielectric layer is a ground metal surface; At least one dielectric layer is located below the topmost dielectric layer, and the at least one capacitor is formed on a main surface thereof; a ground metal layer is a first dielectric layer located under the at least one capacitor, and is formed on a main surface thereof At least one perforation; a second dielectric layer under the at least one capacitor, the first output port being formed on a main surface thereof; a third dielectric layer under the at least one capacitor, the first surface being formed on the main surface thereof The first line of a coupling line; A layer of a fourth dielectric layer below the at least one capacitor, a second line portion of the first joint line and the input port being formed on a main surface thereof; a layer of a fifth dielectric layer below the at least one capacitor, A second line portion of the second node coupling line is formed on a main surface thereof; a sixth dielectric layer is located below the at least one capacitor, and a first line portion of the second node coupling line is formed on a main surface thereof; The seventh dielectric layer under the at least one capacitor has the following characteristics: Page 27 548874 (2) The second output port is formed on the surface of the patent application area; and a bottommost dielectric layer is provided, and the dielectric layer is provided with a ground metal surface. 12. An inductive-capacitive resonant balanced-to-unbalanced converter suitable for wireless communication transmission equipment. The converter includes: an input port; a first and a second output port; at least one twisted line, each section The light closing line has a shape and is composed of a first line portion and a second line portion; a first and a second transmission line, each transmission line is provided with two ends; a third and a fourth transmission line, each The transmission line is provided with two ends; and at least two capacitors; among them, the first line part of the two adjacent coupling lines are connected to each other, and the second line part is also connected to each other. After the line portion is connected in parallel with the at least one capacitor, the first and second transmission lines are respectively connected, and after the at least one capacitor is connected in parallel with the second line portion of the foremost and the last node, the third and fourth transmission lines are connected in series respectively. The first and second output ports are connected to the first and second transmission lines, respectively, the input is connected to the second transmission line, and the fourth transmission line is connected to a ground terminal. Page 28 548874 VI. Application for patent scope 14. The inductor-capacitor resonant balanced-to-unbalanced converter as described in item 12 of the patent application scope, wherein the coupling line is a low-loss metal material 15. If the scope of patent application The inductive-capacitive resonant balanced-to-unbalanced converter according to item 12, wherein the transmission line is a low-loss metal material 16. The inductive-capacitive resonant-to-unbalanced converter described in item 12 of the patent application scope Among them, the converter is achieved by using a multi-layer dielectric layer structure and an equivalent circuit of an inductor-capacitor resonant cavity, and the balanced end is made by punching to another dielectric layer. 17. The inductive-capacitive resonant balanced-to-unbalanced converter according to item 16 of the scope of the patent application, wherein the multilayer dielectric layer structure includes at least eight dielectric layers, and the dielectric layers are stacked upward, And each dielectric layer has a main surface, and the at least eight dielectric layers are composed of at least the following dielectric layers: a topmost dielectric layer whose main surface is a grounded metal surface; at least A dielectric layer is located under the topmost dielectric layer, and the at least one capacitor is formed on a main surface thereof; a first ground metal layer is a first layer located under the at least one capacitor Page 29 548874 VI. Patent application dielectric layer, at least one perforation is formed on its main surface; at least one dielectric layer is located below the first ground metal layer, and a loss is formed on the main surface of each dielectric layer A first line portion of the bonding wire; at least one dielectric layer located below the first line portion, and a second line portion of a coupling line formed on a major surface of each dielectric layer; a second ground metal layer located on Below the second line portion, at least one perforation is formed on a main surface thereof; at least one dielectric layer is located under the second ground metal layer, and the at least one capacitor is formed on a main surface thereof; and a bottom dielectric layer Layer, the lowest dielectric layer is provided with a ground metal surface 18. The inductance-capacitance resonant balanced-to-unbalanced converter described in item 17 of the scope of patent application, wherein the range of each first line portion is self-corresponding The center of the main surface of the dielectric layer is formed on the main surface from the inside to the outside. The range of each second line portion is from the center of the main surface of the corresponding dielectric layer. Formed on the major surface outwardly. 19. If the patent application covers the unbalanced converter, the two output ports of one of the wavelength transmission lines are connected as a resonant cavity. To the equilibration type of the common inductance inductance, the connection of the port is divided into four effects: the input port is equal to the line and the transmission line and the transmission line. The long cavity wave vibration is the same. Power distribution, two inductors, etc. Page 30