CN103606722B - Lamination medium triplexer - Google Patents
Lamination medium triplexer Download PDFInfo
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- CN103606722B CN103606722B CN201310443786.XA CN201310443786A CN103606722B CN 103606722 B CN103606722 B CN 103606722B CN 201310443786 A CN201310443786 A CN 201310443786A CN 103606722 B CN103606722 B CN 103606722B
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Abstract
The present invention discloses a kind of chip-type laminated medium triplexer, triplexer comprises matrix, the circuit structure layer being arranged on the pin outside matrix and being arranged in matrix, circuit structure layer comprises the first high pass filter for the medium and low frequency segment signal in filtering three frequency band signals, for the first low pass filter of the high frequency band signal in filtering three frequency band signals, for the second low pass filter of the Mid Frequency signal in filtering medium and low frequency segment signal and the second high pass filter for the low-band signal in filtering medium and low frequency segment signal, three frequency band signals input the first high pass filter and the first low pass filter respectively, by directly exporting high frequency band signal after the first high pass filter, the second high pass filter and the second low pass filter is inputted respectively by the medium and low frequency segment signal after the first low pass filter, medium and low frequency segment signal is by exporting Mid Frequency signal after the second high pass filter, medium and low frequency segment signal is by output low frequency segment signal after the second low pass filter.
Description
Technical field
The present invention discloses a kind of chip-type laminated medium triplexer, is applicable to, in various handheld terminal communication system, comprise the lamination medium triplexer of Bluetooth system, wireless lan (wlan) system and gps system.
Background technology
Along with the development of electronic communication technology and mobile phone or perhaps handheld terminal application technology, mobile phone is not only confined to communication function already, but develop towards diversified multifunctional direction, and apply in mobile phone mostly be wireless communication arrangement, bluetooth, WiFi etc. is had as: Near Field Communication, global positioning system have gps system, at present, the radio communication function that hand-held terminal device is applied, working frequency range, communications protocol etc. are as shown in the table:
Along with the handheld terminal function in communication system gets more and more, especially wireless telecommunications are same can be from strength to strength, but, the size of hand-held terminal device does not but have corresponding increase, on the contrary along with the psychological needs of people, the trend that the size of hand-held terminal device diminishes in addition gradually, will cause like this between different wireless communication modules and can produce mutual signal disturbing, this contradiction is just in the urgent need to carrying out the integrated of the integrated and device of function treatment IC, if and when the realization of these systems is integrated on same IC, the separation and interference problem etc. of each frequency range will be related to, how to solve the mutual interference on same hand-held terminal device between different radio communication module, become problem demanding prompt solution in industry.
Summary of the invention
For the problem that can produce interference between above-mentioned each frequency range of hand-held terminal device of the prior art mentioned, the invention provides a kind of new lamination medium triplexer, three frequency band signals can be effectively separated with low-pass filtering by the high pass filter of two groups of cascades by it, can not produce interference problem.
The technical scheme that the present invention solves the employing of its technical problem is: a kind of lamination medium triplexer, triplexer comprises matrix, the circuit structure layer being arranged on the pin outside matrix and being arranged in matrix, circuit structure layer comprises the first high pass filter HPF1 for the medium and low frequency segment signal in filtering three frequency band signals, for the first low pass filter LPF1 of the high frequency band signal in filtering three frequency band signals, the second low pass filter LPF2 for the Mid Frequency signal in filtering medium and low frequency segment signal and the second high pass filter HPF2 for the low-band signal in filtering medium and low frequency segment signal, three frequency band signals input the first high pass filter HPF1 and the first low pass filter LPF1 respectively, by directly exporting high frequency band signal after the first high pass filter HPF1, the second high pass filter HPF2 and the second low pass filter LPF2 is inputted respectively by the medium and low frequency segment signal after the first low pass filter LPF1, medium and low frequency segment signal is by exporting Mid Frequency signal after the second high pass filter HPF2, medium and low frequency segment signal is by output low frequency segment signal after the second low pass filter LPF2.
The technical scheme that the present invention solves the employing of its technical problem further comprises:
Described first high pass filter HPF1 adopts T-shaped filter construction, and comprise electric capacity CC1, electric capacity CC2, electric capacity C1 and inductance L 1, electric capacity CC1 and electric capacity CC2 is connected in series, and the common port of electric capacity CC1 and electric capacity CC2 is through the electric capacity C1 of series connection and inductance L 1 ground connection; First low pass filter LPF1 is the electric capacity C1 and inductance L 2 that are connected in parallel; Second high pass filter HPF2 adopts T-shaped filter, and comprise electric capacity C3, electric capacity C4, electric capacity C5 and inductance L 3, electric capacity C3 and electric capacity C4 is connected in series, and the common port of electric capacity C3 and electric capacity C4 is by the electric capacity C5 that is connected in series and inductance L 3 ground connection; Second low pass filter LPF2 comprises the electric capacity C6 and inductance L 4 that are connected in parallel, in rear class again by ground capacity C7 ground connection.
Described inductance L 1 comprises two sections of conducting line segment head and the tail taken the shape of the letter U and connects and composes.
Described inductance L 2 is comprised three section lead sections and is connected and composed in turn by conduction joint pin head and the tail, and first paragraph conducting line segment is L-shaped, and second segment conducting line segment takes the shape of the letter U, and the 3rd section lead section takes the shape of the letter U.
Described inductance L 3 is comprised four section lead sections and is connected and composed in turn by conduction joint pin head and the tail, and first paragraph conducting line segment takes the shape of the letter U, and second segment conducting line segment takes the shape of the letter U, and the 3rd section lead section is inc rectangle, and the 4th section lead section takes the shape of the letter U.
Described inductance L 4 is comprised three section lead sections and is connected and composed in turn by conduction joint pin head and the tail, and first paragraph is L-shaped, and second segment takes the shape of the letter U, and the 3rd section L-shaped.
Described electric capacity adopts plate electrode to realize.
Direction flag is provided with outside described matrix.
The invention has the beneficial effects as follows: the present invention adopts LTCC technology to make integrated lamination medium triplexer, it has, and volume is little, integrated level is high, high reliability.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Accompanying drawing explanation
Fig. 1 is perspective view of the present invention.
Fig. 2 is circuit block diagram of the present invention.
Fig. 3 is circuit theory diagrams of the present invention.
Fig. 4 is structural representation between interior layer of the present invention.
Fig. 5 is radio frequency parameter curve chart of the present invention.
Fig. 6 is the inner ground floor structural representation of the present invention.
Fig. 7 is inner second layer structural representation of the present invention.
Fig. 8 is the inner third layer structural representation of the present invention.
Fig. 9 is the inner four-layer structure schematic diagram of the present invention.
Figure 10 is the inner layer 5 structural representation of the present invention.
Figure 11 is the inner layer 6 structural representation of the present invention.
Figure 12 is the inner layer 7 structural representation of the present invention.
Figure 13 is the inner 8th Rotating fields schematic diagram of the present invention.
In figure, 1-first ground pin, 2-tri-frequency band signals input pin, 3-second ground pin, 4-Mid Frequency signal output pin, 5-the 3rd ground pin, 6-high frequency band signal output pin, 7-the 4th ground pin, 8-low-band signal output pin, 9-direction flag, 10-ceramic matrix, 11-the 4th inductance electrode, 12 the 3rd inductance electrodes, 13-second inductance electrode, 14-first inductance electrode, 15-first long conduction joint pin, 16-second long conduction joint pin, 17-second plate electrode, 18-the 6th plate electrode, 19-the tenth plate electrode, 20-first plate electrode, 21-the 11 plate electrode, 22-the 7th plate electrode, 23-the 4th plate electrode, 24-the 3rd long conduction joint pin, 25-the 8th plate electrode, 26-the 12 plate electrode, 27-the 5th plate electrode, 28-the 3rd plate electrode, 29-the 9th plate electrode, 30-the 13 plate electrode, 31-first connecting line, 32-second connecting line.
Embodiment
The present embodiment is the preferred embodiment for the present invention, and other its principles all are identical with the present embodiment or approximate with basic structure, all within scope.
Please refer to accompanying drawing 2, low-band signal and Mid Frequency signal and most high frequency band signal low pass filter and high pass filter (the high frequency low frequency in the present invention be in circuit comparatively speaking) are mainly separated by principle of the present invention, and then are separated with high pass filter with low pass filter respectively with Mid Frequency signal low-band signal; Namely two duplexers are integrated in a ceramic dielectric, thus realize the function of triplexer.Namely the signal of three frequency ranges is carried out Signal separator through the low-pass filter circuit by low-band signal and Mid Frequency signal with the circuit of high pass filter by high frequency band signal by the present invention, high-frequency signal and medium and low frequency Signal separator are opened, the signal of medium and low frequency section is after the low pass filter of leading portion, carry out Signal separator with the low-pass filter circuit by low-band signal and the circuit of high pass filter by Mid Frequency signal again, thus obtain the signal of high, normal, basic three frequency ranges.
Incorporated by reference to referring to accompanying drawing 3, in the circuit structure in the present invention, triplexer circuit comprises two circuit of high pass filter (High Pass Filter:HPF), two low-pass filter circuits (Low Pass Filter:LPF); In the present embodiment, the high pass filter HPF1 being responsible for being separated high frequency band signal adopts T-shaped filter construction, be connected in series primarily of electric capacity CC1 and electric capacity CC2, the common port (i.e. intermediate node) of electric capacity CC1 and electric capacity CC2 is formed through the electric capacity C1 of series connection and inductance L 1 ground connection; Be responsible for the low pass filter LPF1 being separated medium and low frequency segment signal, be made up of the electric capacity C1 be connected in parallel and inductance L 2; That connect low pass filter LPF1 is high pass filter HPF2 and low pass filter LPF2, in the present embodiment, that be responsible for separation Mid Frequency signal is high pass filter HPF2, it adopts T-shaped filter, high pass filter HPF2 is the electric capacity C3 and electric capacity C4 that are connected in series, and the common port (i.e. intermediate node) of electric capacity C3 and electric capacity C4 is consisted of the electric capacity C5 that is connected in series and inductance L 3 ground connection; Be responsible for the low pass filter LPF2 being separated low-band signal, by electric capacity C6 shunt inductance L4, formed by ground capacity C7 ground connection again in rear class.
Incorporated by reference to referring to accompanying drawing 1, accompanying drawing 5 to accompanying drawing 13, structure of the present invention mainly comprises ceramic matrix 10, be arranged on the pin outside ceramic matrix 10 and be arranged on the circuit structure layer of ceramic matrix 10 inside.Ceramic matrix 10 is also provided with direction flag 9, for indicate user of the present invention to, prevent it from connecing in use instead.In the present embodiment, the circuit structure layer of ceramic matrix 10 inside adopts stacked structure, has eight Rotating fields in the present embodiment, wherein:
8th layer of the 3rd section of 11C comprising the 4th inductance electrode 11 of series resonance inductor L4 in the low pass filter LPF2 of low-frequency range, the 3rd section of 12C in series resonance inductor L2 the 3rd inductance electrode 12 in the low pass filter LPF1 of medium and low frequency section, the first inductance electrode 14 second segment 14B of the 4th section of 13D in the second inductance electrode 13 of the grounded inductor L3 of Mid Frequency high pass filter HPF2 and the grounded inductor L1 of high band high pass filter HPF1, wherein, 3rd section of 11C of the 4th inductance electrode 11 is L-shaped, one end is connected with low-band signal output pin 8, the other end is connected with the second segment 11B of the 4th inductance electrode 11 by conduction joint pin, the 3rd section of 12C in 3rd inductance electrode 12 takes the shape of the letter U, one end is connected with three frequency band signals input pins 2, the other end is connected with the second segment 12B in the 3rd inductance electrode 12 by conduction joint pin, the 4th section of 13D in second inductance electrode 13 takes the shape of the letter U, one end is connected with the second ground pin 3, the other end is connected with section 13C of the 3rd in the second inductance electrode 13 by conduction joint pin, first inductance electrode 14 second segment 14B is L-shaped, one end is connected with the 3rd ground pin 5, the other end is by conduction joint pin and the first inductance electrode 14 first paragraph 14A,
Layer 7 comprises the second segment 11B of the 4th inductance electrode 11, second segment 12B in 3rd inductance electrode 12, the 3rd section of 13C in second inductance electrode 13 and the first inductance electrode 14 first paragraph 14A, wherein, the second segment 11B of the 4th inductance electrode 11 takes the shape of the letter U, one end is connected with the 3rd section of 11C of the 4th inductance electrode 11, the other end is connected with the first paragraph 11A of the 4th inductance electrode 11 by conduction joint pin, second segment 12B in 3rd inductance electrode 12 takes the shape of the letter U, one end is connected with section 12C of the 3rd in the 3rd inductance electrode 12, the other end is connected with the first paragraph 12A in the 3rd inductance electrode 12 by conduction joint pin, the 3rd section of 13C in second inductance electrode 13 is inc rectangle, one end is connected with section 13D of the 4th in the second inductance electrode 13, the other end is connected with the second segment 13B in the second inductance electrode 13 by conduction joint pin, first inductance electrode 14 first paragraph 14A takes the shape of the letter U, one end is connected with the first inductance electrode 14 second segment 14B, the other end is connected with the 3rd plate electrode 28 by the first long conduction joint pin 15,
Layer 6 comprises the first paragraph 11A of the 4th inductance electrode 11, second segment 13B in first paragraph 12A in 3rd inductance electrode 12 and the second inductance electrode 13, wherein, the first paragraph 11A of the 4th inductance electrode 11 is L-shaped, one end is connected with the second segment 11B of the 4th inductance electrode 11, the other end is connected with the first paragraph 12A in the 3rd inductance electrode 12, and be connected with 17 and 27 of the second layer by the second long conduction joint pin 16, first paragraph 12A in 3rd inductance electrode 12 is L-shaped, one end is connected with the second segment 12B in the 3rd inductance electrode 12, the other end is connected with the first paragraph 11A of the 4th inductance electrode 11, second segment 13B in second inductance electrode 13 takes the shape of the letter U, one end is connected with section 13C of the 3rd in the second inductance electrode 13, the other end is connected with the first paragraph 13A in the second inductance electrode 13 by conduction joint pin,
Layer 5 comprises the first paragraph 13A in the second inductance electrode 13, and the first paragraph 13A in the second inductance electrode 13 takes the shape of the letter U, and one end is connected with the second segment 13B in the second inductance electrode 13, and the other end is connected with the 4th plate electrode 23 by the 3rd long conduction joint pin 24;
4th layer of the first plate electrode 20(comprising the resonant capacitance C2 of medium and low frequency section low pass filter itself and the second plate electrode 17 form resonant capacitance C2), the first plate electrode 20 is obliquely installed, and its outboard end is connected with three frequency band signals input pins 2;
The second plate electrode 17(itself and the 6th plate electrode 18 that third layer comprises low-frequency range low pass filter resonant capacitance C6 form resonant capacitance C6, wherein the second plate electrode 17 is simultaneously as the pole plate of two electric capacity), the 3rd plate electrode 28(of the ground connection resonant capacitance C1 of high band high pass filter itself and the 9th plate electrode 29 form ground connection resonant capacitance C1), the 4th plate electrode 23(of Mid Frequency high pass filter ground connection series resonant capacitance C5 itself and the 8th plate electrode 25 form ground connection series resonant capacitance C5) and the 5th plate electrode 27 of access electric capacity C3 of Mid Frequency high pass filter, second plate electrode 17 and the 5th plate electrode 27 are electrically connected by the first connecting line 31,
The 6th plate electrode 18(itself and the tenth plate electrode 19 that the second layer comprises low-frequency range low pass filter ground capacity C7 form ground capacity C7), the 7th plate electrode 22(of the access electric capacity CC1 of high band high pass filter itself and the 11 plate electrode 21 form access electric capacity CC1), 9th plate electrode 29 of the 8th plate electrode 25 of Mid Frequency high pass filter ground connection series resonant capacitance C5 and the ground connection resonant capacitance C1 of high band high pass filter, 7th plate electrode 22 and the 9th plate electrode 29 are electrically connected by the second connecting line 32, 6th plate electrode 18 is connected with low-band signal output pin 8,
Ground floor comprises the tenth plate electrode 19 of low-frequency range low pass filter ground capacity C7, 11 plate electrode 21 of the access electric capacity CC1 of high band high pass filter, 13 plate electrode 30 of the 12 plate electrode 26 of the output capacitance C4 of Mid Frequency high pass filter and the output capacitance CC2 of high band high pass filter, tenth plate electrode 19 is connected with the first ground pin 1 and the 4th ground pin 7 respectively, 11 plate electrode 21 is connected with three frequency band signals input pins 2, 12 plate electrode 26 is connected with Mid Frequency signal output pin 4, 13 plate electrode 30 is connected with high frequency band signal output pin 6.
In the present embodiment, in laminated process, by regulating the length of each electric capacity substrate (plate electrode of electric capacity) and the wide size adjusting electric capacity, its parallel plate capacitor formula is:
Wherein A is the area of battery lead plate, and unit is square micron; D is the distance between two battery lead plates, and unit is all micron.
In the present embodiment, inductance adopts coil inductance form, and adjusted the size of inductance value by regulating course spacing and area coil, its coil inductance formula is:
Wherein N is the number of turns of coil, and h is the height of coil, and L is the length of coil, and w is the width of coil,
with
the relative permeability of magnetic permeability in air and medium respectively.
The operation principle of lamination medium triplexer is three frequency signals one is inputted by the first plate electrode the 20 and the 11 plate electrode 21, first plate electrode the 20 and the 11 plate electrode 21 forms two electric capacity in parallel respectively with the 7th plate electrode 22, two electric capacity are superimposed as the access electric capacity CC1 of high band high pass filter, ground connection resonator capacitor C1 that the 3rd plate electrode 28 and the 9th plate electrode 29 formed is connected afterwards and by the first long joint pin 15 and the first inductance electrode 14 of conducting electricity by the second connecting line 32, and the 13 the electric capacity CC2 that formed of plate electrode 30 and the 9th plate electrode 29 export high frequency band signal, two is input medium and low frequency section low pass filter by the 3rd inductance electrode 12 inductance L 2,3rd inductance electrode 12 inductance L 2 is also unified into medium and low frequency section low pass filter with flat board electricity the first pole 20 and the electric capacity C2 that formed of the second plate electrode 17, thereafter be connected with the 6th plate electrode 18 and the 5th plate electrode 27 respectively by the first connecting line 31,6th plate electrode 18 and the second plate electrode 17 form low-frequency range low-pass filter capacitance C6 output low frequency segment signal, and form ground capacity C7 with both sides ground connection the tenth plate electrode 19, the high pass filter section of Mid Frequency, 5th plate electrode 27 and the 8th plate electrode 25 are formed and access electric capacity C3,8th plate electrode 25 part forms ground connection resonant capacitance C5 with the 4th plate electrode 23, rear 4th plate electrode 23 is interconnected by joint pin and the second inductance electrode 13 grounded inductor L3,8th plate electrode 25 another part and the 12 plate electrode 26 form output capacitance C4, thus export Mid Frequency signal.
Lamination medium triplexer electrical property major influence factors in the present invention:
1, electric capacity C2 and inductance L 2 form the low pass filter LPF2 of medium and low frequency signal, lowpass frequency needs by scope the signal covering low-band signal and Mid Frequency, the size of electric capacity C2 and inductance L 2 affects in-band insertion loss and the Out-of-band rejection of medium and low frequency signal, electric capacity C2 and inductance L 2 larger, low pass range frequency is less;
2, the high pass filter HPF1 of high band forms by accessing electric capacity CC1 and output capacitance CC2 and ground connection series resonant capacitance C1 and grounded inductor L1; Access electric capacity CC1 and output capacitance CC2 affects in-band insertion loss and the voltage standing wave ratio of high pass filter HPF1; Series resonance C1 and grounded inductor L1 affects the Out-of-band rejection of high pass filter HPF1, the transmission zero frequency outside direct influence zone;
3, the high pass filter HPF2 of Mid Frequency forms by accessing electric capacity C3 and output capacitance C4 and ground connection series resonant capacitance C5 and grounded inductor L6; Access electric capacity C3 and output capacitance C4 affects in-band insertion loss and the voltage standing wave ratio of high pass filter HPF2; Series resonance C5 and grounded inductor L6 affects the Out-of-band rejection of high pass filter HPF2, the transmission zero frequency outside direct influence zone;
4, the low pass filter LPF2 of low-frequency range is made up of parallel resonant inductor L4 and electric capacity C6 and ground capacity C7; The size of parallel resonant inductor L4 and electric capacity C6 determines lowpass frequency scope, and ground capacity C7 affects insertion loss and the voltage standing wave ratio of low pass filter LPF2;
The radio frequency parameter curve of the lamination medium triplexer in the present invention is as Fig. 4, with circle sign is the radio frequency parameter curve S 12 that signal is input to low-band signal output, with square sign is the radio frequency parameter curve S 13 that signal is input to the output of Mid Frequency signal, and what band triangle indicated is the radio frequency parameter curve that signal is input to high frequency band signal output; Solid line is the return loss plot S11 of signal input.
The present invention adopts LTCC technology to make integrated lamination medium triplexer, and it has, and volume is little, integrated level is high, high reliability.
Claims (3)
1. a lamination medium triplexer, it is characterized in that: described triplexer comprises matrix, the circuit structure layer being arranged on the pin outside matrix and being arranged in matrix, circuit structure layer comprises the first high pass filter HPF1 for the medium and low frequency segment signal in filtering three frequency band signals, for the first low pass filter LPF1 of the high frequency band signal in filtering three frequency band signals, the second low pass filter LPF2 for the Mid Frequency signal in filtering medium and low frequency segment signal and the second high pass filter HPF2 for the low-band signal in filtering medium and low frequency segment signal, three frequency band signals input the first high pass filter HPF1 and the first low pass filter LPF1 respectively, by directly exporting high frequency band signal after the first high pass filter HPF1, the second high pass filter HPF2 and the second low pass filter LPF2 is inputted respectively by the medium and low frequency segment signal after the first low pass filter LPF1, medium and low frequency segment signal is by exporting Mid Frequency signal after the second high pass filter HPF2, medium and low frequency segment signal is by output low frequency segment signal after the second low pass filter LPF2, the first described high pass filter HPF1 adopts T-shaped filter construction, comprise electric capacity CC1, electric capacity CC2, electric capacity C1 and inductance L 1, electric capacity CC1 and electric capacity CC2 is connected in series, the common port of electric capacity CC1 and electric capacity CC2 is through the electric capacity C1 of series connection and inductance L 1 ground connection, first low pass filter LPF1 is the electric capacity C1 and inductance L 2 that are connected in parallel, second high pass filter HPF2 adopts T-shaped filter, and comprise electric capacity C3, electric capacity C4, electric capacity C5 and inductance L 3, electric capacity C3 and electric capacity C4 is connected in series, and the common port of electric capacity C3 and electric capacity C4 is by the electric capacity C5 that is connected in series and inductance L 3 ground connection, second low pass filter LPF2 comprises the electric capacity C6 and inductance L 4 that are connected in parallel, in rear class again by ground capacity C7 ground connection, inductance L 1 comprises one section of conducting line segment taken the shape of the letter U and one section of L-shaped conducting line segment head and the tail connects and composes, inductance L 2 is comprised three section lead sections and is connected and composed in turn by conduction joint pin head and the tail, and first paragraph conducting line segment is L-shaped, and second segment conducting line segment takes the shape of the letter U, and the 3rd section lead section takes the shape of the letter U, described inductance L 3 is comprised four section lead sections and is connected and composed in turn by conduction joint pin head and the tail, and first paragraph conducting line segment takes the shape of the letter U, and second segment conducting line segment takes the shape of the letter U, and the 3rd section lead section is inc rectangle, and the 4th section lead section takes the shape of the letter U, described inductance L 4 is comprised three section lead sections and is connected and composed in turn by conduction joint pin head and the tail, and first paragraph is L-shaped, and second segment takes the shape of the letter U, and the 3rd section L-shaped.
2. lamination medium triplexer according to claim 1, is characterized in that: described electric capacity adopts plate electrode to realize.
3. lamination medium triplexer according to claim 1 and 2, is characterized in that: be provided with direction flag outside described matrix.
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| CN104506155A (en) * | 2015-01-12 | 2015-04-08 | 深圳顺络电子股份有限公司 | Filter |
| CN104579218B (en) * | 2015-02-03 | 2017-12-05 | 深圳市麦捷微电子科技股份有限公司 | One kind miniaturization lamination sheet type triplexer |
| WO2017176593A1 (en) * | 2016-04-08 | 2017-10-12 | Resonant Inc. | Radio frequency filter, high selectivity triplexer, and communications device |
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