TWI260659B - LC composite component - Google Patents

Abstract

This invention provides an LC composite component. A first LC resonator (Q1) and a second LC resonator (Q2) formed in a laminated body (10a) are connected by a grounded third inductor (L3). A first inductor pattern (21) of the first LC resonator (Q1) and a second inductor pattern (22) of the LC resonator (Q2) are formed axisymmetrically to a third inductor pattern (23) on a main plane of a dielectric layer (12), and each one edge side is connected to a common connecting part (26) positioned at the center of the third inductor pattern (23).

Description

1260659, IX, invention description: [Technical field of the invention] The present invention relates to an LC composite component, in particular, a composite of a band pass filter, a low pass filter and/or a high pass filter including a high frequency. element. [Prior Art] In general, a high frequency is used to pass a signal of a specific frequency band, and a wave M has a plurality of LC resonators. Conventionally, as such a band pass filter, for example, a laminated type band pass filter disclosed in the patent document is known. The specific structure is shown in Figure 13, and its equivalent circuit is shown in Figure 14. The band-passing wave waver 70 is formed by laminating a plurality of ceramic sheets 72 made of a ceramic dielectric material, and is provided with a coupling capacitor 'the first "iLC resonator Q" and the second The segment is called a two-stage LC bandpass filter by a resonator called electrostatic capacitance.

φ is a double structure in which the inductance of the band-pass filter 7"ULC resonator QU is λ::, 丨 is formed by laminating two ceramic sheets 72 and has the same pattern and large inductance patterns 74a and 74b. The inductive pattern vortex a 74^b ' is connected to the sealing terminal electrode (ground) _, _, and the intermediate pattern is extended to the pattern 84a, 84b and formed on the input terminal P11 of the laminated bean (refer to Figure 14) Connection. The L2 resonator of the second stage and the inductor L12 of the Q12 have a double structure in which the two pieces of the ceramics 75a and 7 are formed by laminating the two sheets of the ceramics and having the same pattern shape. The inductive patterns are squeaked, and 1260659 is connected to the sealed terminal electrodes 80a and 8b, and is connected to the input terminal P12 (refer to FIG. 14) formed on the laminated body 71 by epitaxially extending the patterns 85a and 85b, respectively. . The inductance patterns 74a, 75a are arranged in parallel with each other on one ceramic sheet 72, and the inductance patterns 7 and 75b are also arranged in parallel with each other on one ceramic sheet 72. The capacitance patterns 78a and 7b connected to the sealed terminal electrodes 80a and 8b are opposed to the width portions 76a and 76b of the inductance patterns 74a and 74b, and the second-stage LC resonance is formed by the electrostatic capacitance formed therebetween. The capacitor pattern 79a 79b, which is connected to the male terminal electrodes 80a, 80b, is opposite to the width of the inductance patterns 75a, 75b, and forms the second stage LC by the electrostatic capacitance formed therebetween. The capacitor C12 of the resonator Q12. Further, a coupling capacitance pattern 82 (for forming a coupling capacitance cs) is formed between the width portions 76a and 76b of the inductance patterns 74a and 74b and between the width portions 77a and 77b of the inductance patterns 75a and 7B. In the conventional laminated Lc band pass filter 70 having a configuration of a rain, the inductive patterns 74b and 75b are arranged in parallel with each other, and the inductance patterns 74a and 75a are also arranged in parallel with each other. However, with the miniaturization of electronic equipment, the LC π-pass filter is also required to be miniaturized. However, in the conventional laminated type band-pass filter 7 〇, the interval between the inductance patterns 74a and 75a has to be obtained in order to obtain a small product. Since the interval between the inductance patterns 74b and 75b is reduced, it is difficult to reduce the inductance between the inductors 匕丨i and L12. Further, since the inductance L11 and [12 coupling are controlled by the interval between the inductance patterns 74a and 75a and the inductance patterns 74b and 75b, the coupling between the inductances L丨丨 and l12 is small as the product is smaller. The smaller the adjustment range, the smaller the problem. 1260659 Patent Document 1: Japanese Laid-Open Patent Publication No. 2000-323901. SUMMARY OF THE INVENTION Therefore, the object of the present invention is to provide a light control between LC resonators in a wide range and design from / / gt; element. ...and the π-composite component of the south frequency has a small frequency, which is invented by the above-mentioned object m, and includes a filter as a 4 LC waver in a plurality of dielectric layers, and has a plurality of dielectric layers, and The second LC resonator and the first and second capacitors are composed of a first inductance pattern and a first capacitance pattern, h /, a vibration state, and a second inductance pattern and a second capacitance pattern. The 2LC resonator is connected to the grounded "3" inductor pattern, wherein the first inductor pattern and the second inductor pattern are connected to a common connection portion of the pattern; and the first inductance pattern and the second inductance pattern are It is configured such that at least a part thereof is formed on the same electrical layer and is substantially symmetrical about the common connection portion. In the first! In the LC composite device of the invention, since the inductance pattern and the second pattern are arranged to be substantially symmetrical with each other across the third inductance pattern, the third inductance pattern exists between the two, so that the second inductance pattern can be ensured. The distance between the two inductor patterns can be prevented by the distance between the two inductors, and the first LC resonator and the second LC resonator can be improved to obtain a narrow-frequency IX filter. Further, since the ith inductance pattern of the first LC resonator and the second inductance pattern of the second LC resonator are grounded through the third inductor 1260659 pattern, the sensing surface of the 帛1 inductor pattern and the second inductor pattern can be combined by the first 3 The inductance of the inductor pattern is controlled, so that the inductive coupling between the second inductance pattern and the second inductance pattern can be designed to a desired value. The LC composite device according to the second aspect of the present invention includes an Lc wave filter having a laminated body (four) formed by overlapping a plurality of dielectric layers, and having: a first Lc resonator including a first inductance pattern and an ith capacitance pattern; And a second lc resonator including the second inductance pattern and the second capacitance pattern,

The first LC resonance state is connected to the second LC resonator system and the third inductance pattern of the ground, wherein the third inductance pattern is arranged to distinguish the laminate when viewed from the lamination direction of the dielectric layer. Two regions: the second inductance pattern is disposed in one of the two regions, and the second inductance pattern is disposed in another region; the first inductance pattern and the second inductance pattern are connected to the third inductance pattern Common connection. In the LC composite device according to the second aspect of the invention, the first inductance pattern and the second inductance pattern are connected to each other in a region in which the laminated body is divided into two regions so that the common connection portion of the third inductance pattern is divided into two regions. }Inductance pattern, the second inductance pattern is provided in another region, so that the distance between the first inductance pattern and the second inductance pattern can be ensured, and the distance between the first inductance pattern and the second inductance pattern can be prevented, and the first LC resonator and the first LC resonator can be improved. The Q value of the 2LC resonator allows a narrow frequency LC filter to be obtained. Further, since the first inductance pattern of the first LC resonator and the second inductance pattern of the second LC resonator are grounded through the third inductance pattern, the ith inductance pattern and the second inductance pattern 1260659 can be lightly coupled. Since the inductance of the third inductance pattern is controlled, the sensing surface of the first inductance pattern and the second inductance pattern can be designed to have a desired value. In the second aspect of the invention, the composite element preferably has an inductance pattern and a second inductance pattern extending from the common connection portion of the third inductance pattern in a direction separating from each other. Further, it is preferable that the first inductance pattern and the second inductance pattern are arranged such that at least a part thereof is formed on the same dielectric layer, and is substantially symmetrical about a common connection portion of the third electric sensation pattern. In the LC composite device according to the second aspect of the invention, the first inductance pattern and the second inductance pattern are arranged such that the first inductance pattern is substantially symmetrical with respect to the common connection portion of the third inductance pattern. The first inductance pattern and the second inductance pattern are arranged to be substantially point-symmetric about the common connection portion of the third inductance pattern, thereby generating a curved portion of the second inductance pattern that is adjacent to the same side of the dielectric layer. The difference between the number and the number of curved portions of the 帛2 inductor pattern is caused by the deviation of the dielectric layer or the deviation of the lamination bias i, etc. ^ _ 1LC resonance 2 and the characteristics of the second LC resonator can be offset Pin, which can reduce the comprehensive filter and wave characteristic deviation. Further, the first inductance pattern and the second inductance pattern may be arranged to be f-symmetric with respect to the common connection portion of the third inductance pattern. Since the third inductance pattern is interposed between the first inductance pattern and the second inductance pattern, the distance between the first inductance pattern and the second inductance pattern can be ensured, and the distance between the two inductance patterns can be prevented, and the improvement can be improved. The first Lc resonator and the Q value of the resonator are used to obtain a narrow frequency wave. Further, the first inductance pattern and the second inductance pattern may have a curved shape of 1260659. When the first inductance pattern and the second inductance pattern have a curved pattern/shape, the length thereof can be made long, and the inductance of the second inductance pattern and the second inductance pattern can be increased. Thereby, the size of the dielectric layer can be reduced, and the LC composite component can be miniaturized. Further, each of the first inductance pattern and the second inductance pattern may have a plurality of curved portions. When the first inductance pattern and the second inductance pattern each have a plurality of curved portions, the number of curved portions of the first inductance pattern located on the same side of the main surface of the dielectric layer is equal to the number of curved portions of the second inductance pattern. As a result, variations in the characteristics of the first LC resonator and the second LC resonator due to variations in processing such as cutting variations or lamination variations of the dielectric layer can be offset, and variations in the overall filter characteristics can be reduced. Alternatively, the first inductance pattern and the second inductance pattern may be in a wound pattern. When the first inductance pattern and the second inductance pattern have a winding pattern, the length thereof becomes long, and the inductance can be increased. Thereby, the size of the dielectric layer can be reduced, and the LC composite element can be miniaturized. Further, the first inductance pattern and the second inductance pattern may be formed in a plurality of dielectric layers. According to this configuration, the current density of the current formed in the first inductance pattern and the second inductance pattern of each dielectric layer is reduced, whereby the insertion loss can be reduced. Further, the third inductance pattern may be formed on the same dielectric layer as the first inductance pattern and the second inductance pattern. In other words, since the third inductance pattern is between the first inductance pattern and the second inductance pattern, the distance between the first inductance pattern and the second inductance pattern can be ensured, and the distance can be prevented by the distance. The q value of the first LC resonator and the second Lc resonator can be improved, and 1260659 can be obtained, and a narrow-frequency LC filter can be obtained. . Further, the third inductance pattern may be formed in a dielectric layer ± different from the dielectric layer formed by the first inductance pattern and the first inductance pattern. Thereby, the area of the dielectric layer for forming the first inductance pattern and the second inductance pattern can be increased by the degree of freedom in pattern design of the first inductance pattern and the second inductance pattern. And also. Further, the laminated system has a rectangular dielectric layer laminated to form a third inductance pattern having a linear portion connecting the central portions of the opposite sides, and the common connection portion is located substantially at the center of the straight portion. Since the two connection portions are located substantially at the center of the third inductance pattern, the common connection distance can be ensured by the distance between the inductance pattern and the second inductance pattern. Improve the first. And the q value of the 2LC resonator, and the lc wave of the f frequency can be obtained.

[Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a view showing the appearance of an LC composite component according to a first embodiment of the present invention.

Fig. 2 shows the specific configuration thereof. Fig. 3 shows the circuit of the same. The LC composite component 1 〇 ' is formed in a wafer-like ceramic laminate formed by laminating ceramic dielectric layers 11 to 18 to form a τ τ 图 shown in FIG.

μ J is not (different 1LC resonator Q Bu 2LC resonator Q2 and 3rd inductor L3, the same

The LaTeX 1LC resonator Q1 and the second LC 1260659 resonator Q2 are coupled by a third inductance u of the ground. Moreover, the dielectric layers 11 to 18 shown in FIG. 2 are laminated and pressed by a ceramic green sheet obtained by forming a dielectric ceramic material by a doctor blade or a pull-up method, and formed into a laminate. When 1〇a, the ceramic green sheet is sintered. As shown in Fig. 1, the input terminal IM and the output terminal P2 are formed on the opposite end faces of the laminated body 丨〇a. The ground portions G1 and G2 are respectively formed on the side portions. The input terminals ρ1, the output terminals P2, and the ground terminals G1 and G2 can be formed by pre-printing before the (4) green sheet is sintered or formed after the laminated layer 1Ga is fired. Further, in the laminated body 10a, the input terminal P1 and the output terminal p2 are distinguished by the reference numeral J. On the main surface of the dielectric layer 12, as shown in Fig. 4, the first LC resonator W is formed! The inductance pattern 21 (the i-th inductor L1) and the second inductance pattern 22 of the second LC resonator (the second inductance is called, and the third inductance pattern 23 is formed (the third inductor L3). The first Thunderandan 1 electric pentane pattern Both the 21 and the second inductance patterns 22 have a curved pattern shape. ^ Also, the brother 3 inductor pattern 23 has a The pattern 24, 25 (formed in the form of an ancient eighty-two in the form of a square main surface of the tantalum layer 12 opposite to each other in the pair of long sides) is formed by a straight mouth, through The epitaxial patterns 24, 9 and 25 are extended to the ground terminal Gb G2. The first inductance pattern 21 is +2 and the second inductance pattern 22 is formed by the third inductance pattern 23 as a center #9 ^ The pair of the first inductance pattern 21 and the second inductance pattern are connected to the common connection portion 26 (formed at the central portion of the first inductance pattern 23), and the other end side It is extended to the input terminal P1 and the output terminal P2 through the epitaxial diagrams 27 and 28 (formed on the dielectric layer 12' and the central portion of one of the remaining sides of the main surface) 12 1260659. The inductor pattern 23 is disposed such that the dielectric layer 12 is formed as a region. The inductor pattern is disposed in one of the two regions, and the second inductor pattern 22 is disposed in another region. The first inductor pattern 21 is formed. The second inductance pattern 22 is connected to the third inductance pattern u and is connected to the first inductance pattern 21 and the second inductance pattern in common The 22 series extend from the common connection portion in a direction separating from each other. As shown in Fig. 2, on the main faces of the dielectric layer, the capacitance is formed 311323, 33, 3113, 321) (for formation as shown in Fig. 3) The equivalent circuit port is combined with C3 and C4. The capacitor electrodes 31a and 31b are extended to the input terminal P1 through the epitaxial pattern 34b. Further, the capacitor electrodes 32a and 32b are turned on, and the epitaxial patterns 35a and 35b are extended to the output terminal p2. In addition, the face eight electric valley C3 'system will be the dielectric ju between the capacitor electrodes 3U, 33 as "jin open v into the # electric valley, and between the capacitor electrode claws, 33 will be dielectric: 丄 4 as The electrostatic capacitance formed by the dielectric is combined in parallel to form a capacitor. Further, the second capacitor C4' is an electrostatic capacitor formed by the dielectric layer between the capacitor electrodes 32&, 33, and the electrostatic layer formed by dielectric layer 14 between the capacitor electrodes m. The capacitors are combined in parallel to form a capacitor. Capacitor electrodes 36, 37, 38 are formed on the respective main faces of the dielectric layers 16, 17, (the first and second resonators of the equivalent circuit shown in Fig. 3, and the capacitors C1 and C2 of the first vibration Q2). Between the capacitor electrodes 36 and 38, the dielectric layer 16 Γ 4 is electrically connected to the capacitor formed by the electric current. 'The capacitance of the capacitor C2, the electric potential b will be between the electric valley electrodes 37, 38 will be the electrical capacitance formed by the electricity. Capacitor electrodes 36, 37 series 1260659 through the epitaxial patterns 36a, 37a respectively The capacitor electrode 38 is extended to the ground terminals G1 and G2 through the epitaxial pattern 38&; and, in the equivalent circuit shown in FIG. 3, Lg represents the epitaxial pattern. The stray inductance of 38a and 38b. In the LC composite component 10 described above, the first inductance pattern 21 of the first LC resonator Q1 and the second inductance pattern 22 of the second LC resonator Q2 are the third inductance pattern. In the case where the LC composite element 1 is miniaturized, the third inductance pattern 23 is interposed between the ith inductance pattern 21 and the second inductance pattern 22, so that both of them can be secured. Thereby, the inductive coupling between the first inductance pattern 21 and the second inductance pattern 22 can be prevented, and the Q value of the first LC resonator Q1 and the second LC resonator q2 can be improved, and a narrow frequency LC composite element can be obtained. Due to the ith inductance pattern 21 of the first LC resonator Q1 The second inductance pattern 22 of the 2lc resonator Q2 is grounded through the third inductance pattern 23, so the inductive coupling between the first inductance pattern 21 and the second inductance pattern 22 can be controlled by the inductance of the 3 inductor pattern 23. Thereby, the bandwidth design freedom of the high LC composite component 1 can be improved. That is, the measurement result of the filter characteristic of the sample having the LC composite component 10 constructed as shown in FIGS. 1 to 4 is obtained, and the curve S11 shown in FIG. 6 is obtained. The filter and wave characteristics are shown. Further, the filter characteristic measurement result of the conventional Lc filter having the configuration of Fig. 13 is obtained as the filter characteristic shown by the curve S2 1 shown in Fig. 6. As can be seen from Fig. 6, this The lc composite component 10 of the first embodiment has a narrow-frequency filter characteristic in a high frequency band of 4 to 6 GHz. Further, the common 14 1460659 connected to one end of the first and second inductance patterns 21 and 22 is not necessarily connected. At one point, as shown in the modification shown in FIG. $, one of the first and second inductance patterns 21 and 22 may be connected in a biased state with a plurality of lengths. (Second embodiment, see FIGS. 7 and 8) 7 is an LC composite component according to a second embodiment of the present invention. The LC composite component 20 is attached to the reference. In the 1C and the 5th element 1〇 of the first embodiment described with reference to FIGS. 1 to 4, the i-th inductor pattern 21 and the second inductor pattern 22 (the dielectric layer 12 formed in the layered body 2〇a) It is formed in a point symmetry centering on the common of the third inductance pattern 23 and P 26 . The other configuration is the same as that of the first embodiment. Therefore, in Fig. 7, the blade corresponding to Fig. 2 is given. The same reference numerals are given to omit the repetitive description. In the LC composite element of the second embodiment (the laminated type balance_unbalance conversion is) 2, as described above, the i-th inductance pattern 21 and the second inductance figure, the younger brother, The common connection portion 26 of the inductor pattern 23 is formed in a point-symmetric manner at the center. Therefore, the first inductance pattern is adjacent to the side of the ground terminal (1) of the main surface of the dielectric layer 12 and the side of the ground terminal G2 side. The number of the curved portions 29 of the 2 1 and the number of the curved portions 29 of the second inductance pattern 22 may be different. Thereby, the characteristics of the first LC resonator Q1 and the second LC resonator Q2 caused by the cutting variation or the lamination deviation of the dielectric layer 12 with the common connection portion 26 at the center of the symmetry point can be changed. Offset 'can reduce the unevenness of the integrated filter characteristics. Further, similarly to the first embodiment, the common connection portion 26 to which one end of the second and second inductance patterns 21, 22 is connected is not necessarily a defect, and may have a plurality of lengths as shown in the figure. 1st and 2nd inductance diagram

15 1260659 , Case 2 1 , 22 one end is connected in a biased state. (Third Embodiment, an LC composite component according to a third embodiment of the present invention is shown in Fig. 9. The LC composite component 30 is incorporated in the lc composite component 10 of the embodiment described with reference to Figs. The second inductance pattern 21 having a curved shape and the second inductance pattern 22 (the dielectric layer 12 formed on the laminated body 3A) are each provided with a plurality of (four in FIG. 9) curved portions 29. The other components are the same as those of the first embodiment. Therefore, in FIG. 9, the components corresponding to those in FIG. 2 are denoted by the same reference numerals, and the description thereof will not be repeated. The lc composite component of the third embodiment (stacked type) As described above, the first inductance pattern 21 and the second inductance pattern 22 (the dielectric layer 12 formed on the laminated body 30a) are each provided with an even number of curved portions 29'. And the side of the ground terminal G1 side of the main surface of the dielectric layer 12 and the side of the ground terminal g2 side are respectively adjacent to each other, and the number of the curved portions 29 of the first inductance pattern 21 and the curved portion 29 of the second inductance pattern 22 are respectively The number of the electrodes is equal. Thereby, the cutting deviation or lamination of the dielectric layer 12 can be made.

The variation in the characteristics of the first LC resonator Q1 and the second LC resonance Q2 caused by the unevenness in processing such as variations is offset, and unevenness in the overall filter characteristics can be reduced. (Fourth embodiment, see Fig. 10) Fig. 10 is a view showing an LC composite component according to a fourth embodiment of the present invention. The LC complex β element 40 ′ is in the 匸 匸 匸 10 of the embodiment described with reference to FIGS. 4 to 4 , and the first inductance pattern 21 and the second layer of the dielectric layer 12 illustrated in FIG. 2 . The inductance pattern 22 and the third inductance pattern are provided in a two-layer structure. 16 13⁄4 1260659, that is, two dielectric layers 12a and 12b are used instead of the one dielectric layer 12, and the dielectric layers 12a and 12b are formed separately. The i-th inductance patterns 21a and 21b, the second inductance patterns 22a and 22b, and the third inductance patterns 23a and 23b (having the same shape as the first inductance pattern 21, the second inductance pattern 22, and the third inductance pattern 23) The first inductance pattern 21, the second inductance pattern 22, and the third inductance pattern 23 are formed in a two-layer structure to form inductors L1a, L1b, L2a, L2b, L3a, and L3b. Other configurations and the i-th embodiment In Fig. 10, parts corresponding to those in Fig. 2 are denoted by the same reference numerals, and the repeated description thereof will be omitted. The laminated system is also provided with the symbol 4〇a. The LC composite element of the fourth embodiment (stacked type balance) - Unbalanced transition state) 40, except for the effect of the composite element 1丨 of the second embodiment Since the inductance pattern 21 and the second inductance pattern 22 have a two-layer structure, the current density of each of the i-th inductance patterns 2u and 2ib and the second inductance patterns 22a and 22b can be lowered, and the insertion loss of the lc composite element can be reduced. (Fifth Embodiment, Referring to Fig. 1i) Fig. 1 1 shows an lc composite element according to a fifth embodiment of the present invention. The lc double-portion element 50 is implemented by referring to the first embodiment described in the following items. In the composite device 10 of the example, the first inductance pattern 21 and the second inductance pattern 21 of the dielectric layer 12 of FIG. 2 and the αα are formed on one dielectric layer 12a, and the third layer is formed. The inductance pattern 23 is formed on the other dielectric layer 12b. The first inductance pattern 21 and the second inductance pattern 22 are read and connected to the common connection portion of the third inductance pattern 23 through the via hole conductor vh. In Fig. 11, the same reference numerals are given to the portions corresponding to those in Fig. 2, so the description of the same is repeated. In addition, the laminated system is attached with the symbol 5〇a on 17 1260659. In the fifth embodiment, the LC composite component (layered) Type balance-unbalanced turner) 5 〇' except for the effect of the 1 C composite component 1 of the first embodiment Since the third inductance pattern 23 is formed in the dielectric layer 12b different from the first inductance pattern 21 and the second inductance pattern 22, the first inductance pattern 21 and the second inductance pattern 22 of the dielectric layer 12a can be formed. The area for layout is enlarged, and the degree of freedom in design can be increased. (Sixth embodiment, see Fig. 12) Fig. 12 is a view showing an LC composite element according to a sixth embodiment of the present invention. In the LC composite device 10 of the first embodiment described with reference to FIG. 1 to FIG. 4, the i-th inductance pattern 21 and the second inductance pattern 22 are each provided in a winding type, and the first inductance patterns 21 and 2 The inductor patterns 22 are respectively formed on the dielectric layers i2a and 12b divided into two. In other words, the first inductance pattern 21 is divided into the dielectric layers i2a and 丨2b to form the winding-type division patterns 21a and 21b, and the division patterns 21a and 21b_ are electrically connected through the via holes vhl. Similarly, the second inductance pattern 22 is divided into dielectric layers 12a and 12b to form a winding-type divided pattern 22a and 22b, and the divided patterns 22a and 22b are electrically connected through the via hole vh2. In Fig. 12, parts corresponding to those in Fig. 2 are denoted by the same reference numerals, and the repeated description thereof will be omitted. Further, the laminated system is attached with the symbol 60a. In the LC composite component 60 of the sixth embodiment, the second inductance pattern 21 and the second inductance pattern 22 are each provided in a winding type, and the first inductance pattern 21 and the second inductance pattern 22 are respectively divided into two pieces. The dielectric layers i2a, 12b are formed, so that even if the dielectric layers 12a, 12b are reduced in size,

18 1260659 Can the first inductor L1 and the first? # τ 〇 . a /士以乐2Inductance L2 inductance value increases. Thereby, the LC composite component 60 can be further reduced in size. (Other Embodiments) The LC composite component of the present invention is not limited to the above embodiment, and various configurations can be made within the scope of the gist of the invention. For example, in the fourth embodiment described with reference to Fig. 10, the second inductance pattern and the second inductance pattern may be formed on the three dielectric layers. Further, in the sixth embodiment described with reference to Fig. 2, the 帛丨, the inductance pattern and the second inductance pattern may be formed by dividing at least three dielectric layers. As described above, the present invention is extremely useful for an LC composite component including a band pass filter, a low pass filter, and/or a high pass filter for high frequency, and particularly has an advantage of high design freedom. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing an LC composite component according to a first embodiment of the present invention. Fig. 2 is an exploded perspective view showing the lC composite component shown in Fig. 2; Fig. 3 is an equivalent circuit diagram showing the lC composite component shown in Fig. 。. 4 is a plan view showing a second inductance pattern, a second inductance pattern, and a third inductance pattern of the LC composite device shown in FIG. Fig. 5 is a plan view showing a modification of the first inductance pattern and the second inductance pattern shown in Fig. 4; Fig. 6 is a graph showing the filter characteristics of the lC composite component and the conventional band pass filter shown in Fig. 6. 19 1260659 Fig. 7 is an exploded perspective view showing the LC composite component of the second embodiment of the present invention. Fig. 8 is a perspective view showing a modification of the first inductance pattern and the second inductance pattern shown in Fig. 7; Fig. 9 is an exploded perspective view showing the LC composite component of the third embodiment of the present invention. Fig. 10 is an exploded perspective view showing the LC composite component of the fourth embodiment of the present invention. Fig. 11 is an exploded perspective view showing the LC composite component of the fifth embodiment of the present invention. Fig. 1 is an exploded perspective view showing the LC composite component of the sixth embodiment of the present invention. Fig. 13 is an exploded perspective view showing the configuration of a conventional band pass filter. Fig. 14 is a view showing an equivalent circuit of the band pass filter shown in Fig. 13. [Description of main components] 10, 20, 30, 40, 50, 60 LC composite components 10a, 20a, 30a, 40a, 50a, 60a Laminates 1 1 to 18, 12a, 12b Dielectric layers 21, 21a, 21b First inductance pattern 22, 22a, 22b Second inductance pattern 23 Third inductance pattern 26 Common connection portion 29 Bending portion 20 1260659 Capacitance electrodes 31a, 32a, 33, 31b, 32b, 36, 37, 38 Q1 1st resonator Q2 Second resonator G1, G2 Ground terminal L1 First inductance L2 Second inductance L3 Third inductance

Cl, C2 capacitor

C3, C4 coupling capacitor P 1 : input terminal P2 : output terminal

Vh, vhl, vh2 孑L

twenty one

Claims (1)

Exhaustion 659 Ten, the scope of application for patents: The first inductance pattern and the first! Capacitor: The cable has: the 2nd inductor pattern and the 2nd electric: vibration" by the 1LC resonator and the 2nd #2nd brother 2LC resonator, the first connection, which is characterized by: the vibrator system and the grounding The inductance pattern of the two inductors is connected to the third inductor 2, and the inductor pattern is disposed at least one of them, and is centered on the common connection portion. The first inductance pattern and the common connection portion of the third case; the first inductance pattern and the first portion are formed on the same dielectric layer. The piece contains an LC squirrel, and the sigma σ n / 改 改 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , a first LC resonator composed of a one-inductance pattern and a first electric pet, and a second LC resonator including a two-inductance pattern and a second capacitance map, and a sigma valley pattern. The 1st Cth resonator and the 2nd LC hills are crying from the 1st, the vibration system and the 3rd inductance diagram of the grounding, which are characterized in that: the third inductance pattern is set to 'from the medium When the lamination direction of the electric layer is transparent, the laminated body can be divided into two regions; in one of the two regions, the city is set up, and the δ haidi 1 inductance pattern is set, and the second 设置 设置 设置 设置Inductor pattern; the first inductance pattern and the second inductance pattern are connected to the common connection portion of the third method. The LC composite component according to claim 2, wherein the first inductance pattern and the second inductance pattern extend in a direction separating from each other from a common connection portion of the third inductance pattern. The LC composite component according to claim 2, wherein the first inductance pattern and the second inductance pattern are arranged such that at least a part thereof is formed on the same dielectric layer, and the common connection portion is centered Substantially symmetrical. 5. The 1C composite component according to claim 3, wherein the first inductance pattern and the second inductance pattern are arranged such that at least a part thereof is formed on the same dielectric layer, and the common connection portion is centered Substantially symmetrical. The LC composite component according to claim 1, wherein the first inductance pattern and the second inductance pattern are arranged to be substantially point-symmetric with respect to the common connection portion. The LC composite component according to claim 4, wherein the first inductance pattern and the second inductance pattern are arranged to be substantially point-symmetric with respect to the common connection portion. 8. The lc composite component according to claim 5, wherein the first inductance pattern and the second inductance pattern are arranged to be substantially point-symmetric about the common connection portion. The LC composite component according to claim 1, wherein the first inductance pattern and the second inductance pattern are arranged substantially symmetrical with respect to the common connection portion. 1 〇 · LC composite component as claimed in item 4 of the patent, wherein 23 1260659 The first inductance pattern and 箆? The sensation pattern is arranged such that it is substantially line symmetrical about the common connection portion. 1 1 · For example, the LC composite component of the target range of the patent scope is 5, wherein the first inductance pattern and the second electric salt pattern are arranged to be continuous with the common connection 4 The line of mass is symmetrical. 12. If the scope of the patent application is the first one, the LC composite member from any one of Gans to 5, wherein the first Thunder is R-shaped. (4) The second inductor pattern has a f-curve. 13. The first inductor pattern and the 电感? Φ a A part 0 ” Inductive pattern respectively has a plurality of bending elements: 4 Π Patent scopes 1 to 5 of any item ... the pattern 〃 the first inductance pattern and the second inductance pattern are wound elements 15 πCombination of several dielectric layers of any one of the patent ranges 1 to 5. (4) The case and the D-inductance pattern are formed on the complex element 16^, any one of the patent scopes 1 to 5 And the second electric monument g-sl 3 inductor pattern is formed on the same dielectric layer as the first inductor pattern inductor pattern. Component: 7th application patent range 1 to 5, LC composite and 2Mm The third inductance pattern is formed on a dielectric layer different from the dielectric layer formed by the first inductance pattern and the second inductance pattern. 18 · lc of the items i to 5 of the patent application scope Composite 24 1260659 - an element in which the laminated system is formed by laminating a rectangular dielectric layer, and the third inductance pattern has a straight portion connecting the central portions of the opposite sides, and the common connecting portion is located in the straight line The department is roughly central. Η^一*, schema: as the next page