WO2006095865A1 - 遅延線 - Google Patents
遅延線 Download PDFInfo
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- WO2006095865A1 WO2006095865A1 PCT/JP2006/304778 JP2006304778W WO2006095865A1 WO 2006095865 A1 WO2006095865 A1 WO 2006095865A1 JP 2006304778 W JP2006304778 W JP 2006304778W WO 2006095865 A1 WO2006095865 A1 WO 2006095865A1
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- delay
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/205—Comb or interdigital filters; Cascaded coaxial cavities
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P9/00—Delay lines of the waveguide type
Definitions
- the present invention relates to a delay line including a parallel resonant circuit having a plurality of resonators between an input terminal and an output terminal.
- a delay line is used for the purpose of distortion detection and distortion suppression. ing.
- the delay line 200 includes a bandpass filter 208 having an input terminal 202, an output terminal 204, and a plurality of resonators 206A to 206I.
- the input terminal 202 and the first stage resonator 206A are coupled by a capacitor C1
- the output terminal 204 and the last stage resonator 2061 are coupled by a capacitor C2
- each resonator 206A to 206I is further coupled to a capacitor C3 to C.
- the delay line 210 similar to the delay line 200 shown in FIG. 27 is connected in parallel with the coupling capacitors C3 to C8 between the adjacent resonators 206A to 206G.
- an interlace circuit 212 having a plurality of coupling capacitors C9 to C19 is connected (see, for example, Patent Document 1) and a delay line 300 shown in FIG. 29, between adjacent resonators 206A to 206E.
- an interlace circuit 302 connected in parallel with the coupling capacitors C1 to C6 and having the coupling capacitors C7 to C10 and the inductances L1 to L7 is connected (for example, Patent Document 2).
- Patent Document 1 JP 2001-257505 A
- Patent Document 2 Japanese Patent Laid-Open No. 2003-273661
- the delay line 210 shown in FIG. 28 and the delay line 300 shown in FIG. 29 can ensure the flatness of the group delay time in the passband without increasing the number of resonator stages, and the group delay time deviation.
- the number of circuit elements constituting the interlaced circuits 212 and 302 increases or the number of interlaced circuits 212 and 302 increases, resulting in an increase in size. is there.
- the amount of delay is almost the same as that of the delay line 200 shown in FIG. 27 in which the interlace circuits 212 and 302 are not provided.
- the present invention has been made in consideration of such problems, and with a simple configuration, the flatness of the group delay time in the passband can be ensured (the flatness of the group delay time in the passband can be ensured). It is an object to provide a delay line that can secure and reduce the group delay time deviation in the passband), and can further reduce the size.
- Another object of the present invention is to enable a large amount of delay with a simple configuration, ensure flatness of the group delay time in the pass band, and promote downsizing.
- An object of the present invention is to provide a delay line that can be used.
- a delay line according to the present invention is a delay line including a band-pass filter having a plurality of resonators between an input terminal and an output terminal.
- the delay line is adjacent to the input terminal and the input terminal.
- the output terminal and one of the resonators adjacent to the output terminal are capacitively coupled or inductively coupled, and between each of the resonators are capacitively coupled and Z or inductively coupled,
- the capacitive coupling and the inductive coupling exist in combination.
- the combination of the capacitive coupling and the inductive coupling may be arranged symmetrically.
- the flatness of the group delay time in the pass band means the maximum value of the group delay time in the low band side area of the pass band and the group delay time in the high band area of the pass band. The closer the line segment connecting the maximum value of to the horizontal, the more flat it is. Therefore, the capacitive area (low The peak value of the group delay time in the region (the region on the high band side) and the peak value of the group delay time in the inductive region (the region on the high region side) are closer, and the flatness of the group delay time in the passband Will be obtained.
- the group delay time deviation in the passband is the maximum value of the group delay time in the passband (the maximum value of the group delay time in the low frequency region or the group delay time in the high frequency region). The difference between the larger of the maximum values and the minimum value. Therefore, the group delay time deviation in the pass band can be reduced by reducing the maximum value of the group delay time in the pass band and increasing the Z or minimum value.
- the peak value of the group delay time in the capacitive region is inductive region (high region) when viewed from the delay characteristics. This is lower than the peak value of the group delay time in the side area), and it is difficult to ensure the flatness of the group delay time and the reduction of the group delay time deviation in the passband.
- the input terminal and one resonator adjacent to the input terminal are capacitively coupled or inductively coupled, and the output terminal and one resonator adjacent to the output terminal are coupled.
- Capacitive coupling or inductive coupling, capacitive coupling and Z or inductive coupling between the resonators, and combinations of the capacitive coupling and the inductive coupling are arranged symmetrically.
- the flatness of the group delay time within the pass band can be ensured with a simple configuration, and the miniaturization can be promoted.
- an additional circuit in which two resonators are coupled in a combined form of capacitive coupling and inductive coupling so as to straddle at least one of the plurality of resonators.
- the peak value of the delay characteristic is lowered by an attached circuit in order to ensure the flatness of the group delay time in the pass band. . Therefore, it is impossible to increase the concave portion (the portion with the smallest delay amount) of the delay characteristics of the bandpass filter.
- the present invention increases the number of indentations in the delay characteristics that are not in order to change the peak values of the delay characteristics (and may include reducing the difference in peak values).
- a resonator and the resonator adjacent to the one resonator are coupled in a combined form in which capacitive coupling and inductive coupling are combined, or among the plurality of resonators
- the delay amount of the bandpass filter in the delay characteristic can be increased (earned), and depending on the case, the delay amount can be reduced. It is also possible to increase it to the above peak value.
- the resonator may be one of a ⁇ 4 resonator, a ⁇ 2 resonator, or an LC resonant circuit.
- the flatness of the group delay time in the pass band can be ensured with a simple configuration, and the miniaturization can be promoted.
- the delay line of the present invention it is possible to increase the delay amount with a simple configuration, and to ensure the flatness of the group delay time in the passband, thereby promoting the miniaturization. Can do.
- FIG. 1 is a circuit diagram showing a delay line according to a first embodiment.
- FIG. 2 is a characteristic diagram showing a variation in mismatch attenuation amount with respect to the frequency of the delay line, the attenuation characteristic, and the delay characteristic according to the first embodiment.
- FIG. 3 is a circuit diagram showing a delay line according to the first comparative example.
- FIG. 4 is a characteristic diagram showing a change in mismatch attenuation with respect to the frequency of the delay line, the attenuation characteristic, and the delay characteristic according to the first comparative example.
- FIG. 5 is a circuit diagram showing a delay line according to a second comparative example.
- FIG. 6 is a characteristic diagram showing a change in mismatch attenuation, the attenuation characteristic, and the delay characteristic with respect to the frequency of the delay line according to the second comparative example.
- FIG. 7 is a circuit diagram showing a delay line according to a second embodiment.
- Fig. 8 is a characteristic diagram showing a change in mismatch attenuation with respect to the frequency of the delay line, the attenuation characteristic, and the delay characteristic according to the second embodiment.
- FIG. 9 is a circuit diagram showing a delay line according to a third embodiment.
- FIG. 10 is a characteristic diagram showing a change in mismatch attenuation with respect to the frequency of the delay line, the attenuation characteristic, and the delay characteristic according to the third embodiment.
- FIG. 11 is a circuit diagram showing a delay line according to a fourth embodiment.
- FIG. 12 is a characteristic diagram showing a change in mismatch attenuation with respect to the frequency of the delay line, the attenuation characteristic, and the delay characteristic according to the fourth embodiment.
- FIG. 13 is a circuit diagram showing a delay line according to a fifth embodiment.
- FIG. 14 is a characteristic diagram showing a change in mismatch attenuation with respect to the frequency of the delay line, the attenuation characteristic, and the delay characteristic according to the fifth embodiment.
- FIG. 15 is a circuit diagram showing a delay line according to a sixth embodiment.
- FIG. 16 is a characteristic diagram showing a change in mismatch attenuation with respect to the frequency of the delay line, the attenuation characteristic, and the delay characteristic according to the sixth embodiment.
- FIG. 17 is a circuit diagram showing a delay line according to a seventh embodiment.
- FIG. 18 is a characteristic diagram showing a change in mismatch attenuation with respect to the frequency of the delay line, the attenuation characteristic, and the delay characteristic according to the seventh embodiment.
- FIG. 19 is a circuit diagram showing a delay line according to an eighth embodiment.
- FIG. 20 is a characteristic diagram showing a change in mismatch attenuation with respect to the frequency of the delay line, the attenuation characteristic, and the delay characteristic according to the eighth embodiment.
- FIG. 21 is a circuit diagram showing a delay line according to a ninth embodiment.
- FIG. 22 is a characteristic diagram showing a change in mismatch attenuation with respect to the frequency of the delay line, the attenuation characteristic, and the delay characteristic according to the ninth embodiment.
- FIG. 23 is a circuit diagram showing a delay line according to the tenth embodiment.
- FIG. 24 is a characteristic diagram showing a change in mismatch attenuation with respect to the frequency of the delay line, the attenuation characteristic, and the delay characteristic according to the tenth embodiment.
- FIG. 25 is a circuit diagram showing a delay line according to an eleventh embodiment.
- FIG. 26 is a characteristic diagram showing a change in mismatch attenuation with respect to the frequency of the delay line, the attenuation characteristic, and the delay characteristic according to the eleventh embodiment.
- FIG. 27 is a circuit diagram showing a delay line according to a conventional example.
- FIG. 28 is a circuit diagram showing a delay line according to another conventional example.
- FIG. 29 is a circuit diagram showing a delay line according to still another conventional example.
- the delay line 10A is electrically connected between the input terminal 12, the output terminal 14, and the input terminal 12 and the output terminal 14.
- a band-pass filter 18 having a plurality of ⁇ / 4 resonators (first resonator 16A to fourth resonator 16D).
- the band-pass filter 18 has at least one coupling form in which another resonator adjacent to one capacitively coupled resonator is inductively coupled.
- the bandpass filter 18 includes an input terminal 12 and a first resonator 16A adjacent to the input terminal 12 coupled by a capacitor C1, and the first resonator 16A and the first resonator 16A.
- the second resonator 16B adjacent to the second resonator 16B is coupled by the capacitor C2
- the second resonator 16B and the third resonator 16C adjacent to the second resonator 16B are inductively coupled by the inductance L1
- the third resonator 16C and the fourth resonator 16D adjacent to the third resonator 16C are coupled by the capacitor C3, and the fourth resonator 16D and the output terminal 14 adjacent to the fourth resonator 16D are coupled by the capacitor C4.
- Figure 2 shows the attenuation characteristics and delay characteristics.
- the curve alOl shows the change in mismatch attenuation
- the curve blOl shows the attenuation characteristic
- the curve clOl shows the delay characteristic.
- the maximum group delay time DLm in the low-pass region of the passband is 7.6 ns (frequency fl)
- the group delay in the high-pass region of the passband is The maximum time DHm is 7.4 ns (frequency f 2)
- the difference (flatness) is 0.2 ns. Since the minimum value in the pass band is 6.8 ns, the group delay time deviation in the pass band is 0.8 ns.
- the operation and effect of the delay line 10A according to the first embodiment will be described in comparison with two comparative examples (the delay lines 100A and 100B according to the first and second comparative examples). To do.
- the delay line 100A according to the first comparative example includes a bandpass filter 18 between the input terminal 12 and the first resonator 16A, and a fourth resonator 16D and an output terminal. 14 and the first resonator 16A to the fourth resonator 16D are coupled by capacitors Cl, C2, C3, C4, and C5, respectively.
- FIG. 4 shows a change in mismatch attenuation, the attenuation characteristic, and the delay characteristic with respect to the frequency of the delay line 100A according to the first comparative example.
- a curve al02 shows a change in mismatch attenuation
- a curve bl02 shows an attenuation characteristic
- a curve cl02 shows a delay characteristic.
- the maximum value DLm is 7.4 ns (frequency f 1)
- the maximum value DHm is 7. Ons (frequency f 2).
- the difference (flatness) is 0.4 ns, which is larger than the value (0.2 ns) in the first embodiment.
- the minimum value in the pass band is 6.6 ns
- the group delay time deviation in the pass band is 0.8 ns, which is the same as the value in the first embodiment.
- the attenuation amount in the capacitive region is inductive region ( The slope characteristic of the high region that is more than the attenuation in the high region) becomes gentle.
- the delay line 100B according to the second comparative example includes a bandpass filter 18 between the input terminal 12 and the first resonator 16A, and a fourth resonator 16D and an output.
- the terminals 14 and the first resonator 16A to the fourth resonator 16D are inductively coupled by inductances Ll, L2, L3, L4, and L5, respectively.
- FIG. 6 shows a change in mismatch attenuation with respect to the frequency of the delay line 100B according to the second comparative example, attenuation characteristics, and delay characteristics.
- a curve al03 shows a change in mismatch attenuation
- a curve b103 shows an attenuation characteristic
- a curve c103 shows a delay characteristic.
- the maximum value DLm is 7.3 ns (frequency f 1)
- the maximum value DHm is 7.9 ns (frequency f 2).
- the difference (flatness) is 0.6 ns, which is larger than the value in the first embodiment (0.2 ns) and the minimum value in the passband is 6.9 ns.
- the group delay time deviation is 1. Ons, which is larger than the value (0.8 ns) in the first embodiment.
- the attenuation in the inductive region when viewed from the attenuation characteristic (bl03), is a capacitive region (low The slope characteristic of the low band that is larger than the attenuation in the band area) becomes gentle.
- both the low-frequency side and high-frequency side slope characteristics are steep, and the attenuation characteristic is the second characteristic. It is better than the comparative example.
- the delay line 10A according to the first embodiment has good attenuation characteristics, and shika also has symmetry with respect to the center frequency in the attenuation characteristics and delay characteristics. It can be seen that the flatness of the group delay time in the passband can be secured. Since the flatness of the group delay time within the passband is ensured, the group delay time deviation within the passband can be reduced.
- the delay line 10B according to the second embodiment is a force bandpass filter 18 having substantially the same configuration as the delay line 10A according to the first embodiment described above.
- the structure of is different as follows. That is, the bandpass filter 18 is coupled between the input terminal 12 and the first resonator 16A and between the fourth resonator 16D and the output terminal 14 with the capacitances Cl and C2, respectively.
- the four resonators 16D are inductively coupled with inductances Ll, L2, and L3, respectively. In this case, combinations of two capacitive couplings (capacitances C1 and C2) and three inductive couplings (inductances L1 to L3) are arranged symmetrically.
- FIG. 8 shows a change in mismatch attenuation with respect to the frequency of the delay line 10 B according to the second embodiment, attenuation characteristics, and delay characteristics.
- curve a2 shows the change in mismatch attenuation
- curve b2 shows the attenuation characteristic
- curve c2 shows the delay characteristic.
- the specific values of the delay characteristics are listed.
- the maximum value DLm is 7.4 ns (frequency f 1)
- the maximum value DHm is 7.5 ns (frequency f2)
- the difference (flatness) is 0. Ins. It is. Since the minimum value in the passband is 6.8 ns, the group delay time deviation in the passband is 0.7 ns.
- the delay line 10C according to the third embodiment is a force bandpass filter 18 having substantially the same configuration as the delay line 10A according to the first embodiment described above.
- the structure of is different as follows.
- the bandpass filter 18 includes the input terminal 12 and the first resonator 16A, the fourth resonator 16D and the output terminal 14, the first resonator 16A and the second resonator 16B, and the third resonator.
- 16C and 4th resonator 16D are coupled by capacitance Cl, C2, C3, and C4, respectively, and 2nd resonator 16B and 3rd resonator 16C are coupled in a combined form that combines capacitive coupling and inductive coupling. It is configured.
- This coupling form is a form in which the coupling by the capacitor C5, the inductive coupling by the inductance L1, and the coupling by the capacitor C6 are connected in series. In this case, a combination of six capacitive couplings (capacitances C1 to C6) and one inductive coupling (inductance L1) is arranged symmetrically.
- Figure 10 shows the attenuation characteristics and delay characteristics.
- a curve a3 shows a change in mismatch attenuation
- a curve b3 shows an attenuation characteristic
- a curve c3 shows a delay characteristic.
- the maximum value DLm is 9.7 ns (frequency f 1)
- the maximum value DHm is 9.3 ns (frequency f 2)
- the difference (flatness) is 0. 4ns. Since the minimum value in the passband is 8.3 ns, the group delay time deviation in the passband is 1.4 ns.
- the group delay time deviation in the passband is slightly larger than in the first embodiment, but the minimum value in the passband is 8. 3ns, which is advantageous when you want to increase the delay.
- the delay line 10D according to the fourth embodiment has substantially the same configuration as the delay line 10A according to the first embodiment described above, but the first resonance Coupling of capacitive coupling and inductive coupling between the first resonator 16A and the fourth resonator 16D so as to straddle the second resonator 16B and the third resonator 16C among the resonators 16A to 16D
- the difference is that the circuits connected in a form (interlace circuit 20) are connected in parallel.
- the coupling form in the interlace circuit 20 is such that the coupling by the capacitor C5, the inductive coupling by the inductance L2, and the coupling by the capacitor C6 are connected in series.
- FIG. 12 shows the change in mismatch attenuation, the attenuation characteristics, and the delay characteristics with respect to the frequency of the delay line 10D according to the fourth embodiment.
- curve a4 shows the change in mismatch attenuation
- curve b4 shows the attenuation characteristic
- curve c4 shows the delay characteristic.
- the specific values of the delay characteristics are listed.
- the maximum value DLm is 8.8 ns (frequency f 1)
- the maximum value DHm is 8.5 ns (frequency f 2)
- the difference (flatness) is 0. 3ns. Since the minimum value in the passband is 8.5 ns, the group delay time deviation in the passband is 0.3 ns.
- the group delay time deviation in the passband is greatly improved, and the force can be increased in delay as compared with the first embodiment. it can.
- the delay line 10E according to the fifth embodiment has substantially the same configuration as the delay line 10B according to the second embodiment described above, but the first resonance Coupling of capacitive coupling and inductive coupling between the first resonator 16A and the fourth resonator 16D so as to straddle the second resonator 16B and the third resonator 16C among the resonators 16A to 16D
- the difference is that the circuits connected in a form (interlace circuit 22) are connected in parallel.
- the coupling form in the interlace circuit 22 is a form in which the coupling by the capacitor C3, the inductive coupling by the inductance L4, and the coupling by the capacitor C4 are connected in series as in the fourth embodiment. .
- FIG. 14 shows the change in mismatch attenuation, the attenuation characteristics, and the delay characteristics with respect to the frequency of the delay line 10E according to the fifth embodiment.
- curve a5 shows the change in mismatch attenuation
- curve b5 shows the attenuation characteristic
- curve c5 shows the delay characteristic.
- the maximum value DLm is 8.5 ns (frequency f 1)
- the maximum value DHm is 9.
- Ons frequency f 2
- the difference (flatness) is 0. 5ns. Since the minimum value in the passband is 8.5 ns, the group delay time deviation in the passband is 0.5 ns.
- the group delay time deviation in the passband is improved and the amount of delay can be increased.
- the delay line 10F according to the sixth embodiment has substantially the same configuration as the delay line 10C according to the third embodiment described above, but the first resonance Coupling of capacitive coupling and inductive coupling between the first resonator 16A and the fourth resonator 16D across the second resonator 16B and the third resonator 16C among the resonators 16A to 16D
- the difference is that the circuits connected in a form (interlace circuit 24) are connected in parallel.
- the coupling form in the interlace circuit 24 is a form in which the coupling by the capacitor C7, the inductive coupling by the inductance L2, and the coupling by the capacitor C8 are connected in series as in the fourth embodiment. .
- a curve a6 indicates a change in mismatch attenuation
- a curve b6 indicates an attenuation characteristic
- a curve c6 indicates a delay characteristic
- the specific values of the delay characteristics are listed.
- the maximum value DLm is 10.3 ns (frequency f 1)
- the maximum value DHm is 10. Ons (frequency f 2)
- the difference (flatness) is 0. 3ns. Since the minimum value in the pass band is 9.9 ns, the group delay time deviation in the pass band is 0.4 ns.
- the group delay time deviation in the passband is significantly improved and the force can be increased in delay compared to the third embodiment. it can.
- the delay line 10G according to the seventh embodiment has substantially the same configuration as the delay line 10F according to the sixth embodiment described above, but the first resonance Among the first resonator 16A and the third resonator 16C, and between the first resonator 16A and the third resonator 16C so as to straddle the second resonator 16B among the first resonator 16A to the third resonator 16C.
- This is different in that a circuit in which capacitive coupling and inductive coupling are combined in a combined form (interlace circuit 24) is connected in parallel.
- FIG. 18 shows a change in mismatch attenuation, the attenuation characteristics, and the delay characteristics with respect to the frequency of the delay line 10G according to the seventh embodiment.
- a curve a7 shows a change in mismatch attenuation
- a curve b7 shows an attenuation characteristic
- a curve c7 shows a delay characteristic.
- the specific values of the delay characteristics are listed.
- the maximum value DLm is 2.4 ns (frequency f 1)
- the maximum value DHm is 2.4 ns (frequency f 2)
- the difference (flatness) is Ons. is there.
- the minimum value in the pass band is 2.4 ns
- the group delay time deviation in the pass band is 0. Ons.
- the flatness of the group delay time in the passband and the group delay time deviation in the passband are much larger than those in the fourth and sixth embodiments. It has been improved.
- the delay line 10H according to the eighth embodiment has substantially the same configuration as the delay line 10G according to the seventh embodiment described above, but the first resonator 16A and The second resonator 16B differs in that the coupling by the capacitor C3, the inductive coupling by the inductance L3, and the coupling by the capacitor C4 are combined in a combined form.
- FIG. 20 shows a change in mismatch attenuation, the attenuation characteristics, and the delay characteristics with respect to the frequency of the delay line 10H according to the eighth embodiment.
- a curve a8 shows a change in mismatch attenuation
- a curve b8 shows an attenuation characteristic
- a curve c8 shows a delay characteristic.
- the maximum value DLm is 2.2 ns (frequency f 1)
- the maximum value DHm is 2.3 ns (frequency f2)
- the difference (flatness) is 0. Ins. It is. Also, since the minimum value in the passband is 2.2 ns, the group delay time deviation in the passband is 0. Ins.
- the flatness in the passband and the group delay time deviation in the passband are greatly improved.
- the delay line 101 according to the ninth embodiment has a force bandpass filter 18 having a configuration substantially similar to that of the delay line 10D according to the fourth embodiment described above.
- the structure of is different as follows.
- the bandpass filter 18 includes the first resonator 16A to the sixth resonator 16F.
- the input terminal 12 and the first resonator 16A and the sixth resonator 16F and the output terminal 14 are coupled by capacitors Cl and C2, respectively, and the capacitor C3, between the first resonator 16A and the third resonator 16C, respectively.
- Capacitatively coupled at C4 and capacitively coupled between the fourth resonator 16D and the sixth resonator 16F by capacitances C5 and C6, respectively, and inducted between the third resonator 16C and the fourth resonator 16D by inductance L1 Composed and structured.
- the first resonator 16A to the sixth resonator 16F the first resonator 16B and the fifth resonator 16E are coupled in a coupled form in which capacitive coupling and inductive coupling are combined.
- a jump circuit 24A is connected in parallel, and a second jump circuit 24B is connected in parallel, in which the third resonator 16C and the fourth resonator 16D are coupled in a combined form of capacitive coupling and inductive coupling.
- the coupling form in the first jump circuit 24A is a coupling form in which the coupling by the capacitor C7, the inductive coupling by the inductance L2, and the coupling by the capacitor C8 are connected in series, and the coupling form in the second jump circuit 24B.
- the coupling by the capacitor C9, the inductive coupling by the inductance L3, and the coupling by the capacitor C10 are connected in series.
- FIG. 22 shows a change in mismatch attenuation with respect to the frequency of the delay line 101 according to the ninth embodiment, attenuation characteristics, and delay characteristics.
- a curve a9 shows a change in mismatch attenuation
- a curve b9 shows an attenuation characteristic
- a curve c9 shows a delay characteristic.
- the specific values of the delay characteristics are listed.
- the maximum value DLm is 10.6 ns (frequency f 1)
- the maximum value DHm is 11.2 ns (frequency f 2)
- the difference (flatness) is 0. 6ns. Since the minimum value in the pass band is 10.6 ns, the group delay time deviation in the pass band is 0.6 ns.
- the group delay time deviation in the passband is slightly larger than in the fourth embodiment, but the delay amount can be increased. .
- the delay line 10J according to the tenth embodiment has a configuration similar to that of the delay line 101 according to the ninth embodiment described above.
- the composition of is different as follows.
- the bandpass filter 18 includes the first resonator 16A to the eighth resonator 16H.
- the input terminal 12 and the first resonator 16A and the eighth resonator 16H and the output terminal 14 are coupled by capacitors Cl and C2, respectively, and the capacitor C3, between the first resonator 16A and the fourth resonator 16D, respectively.
- C4 and C5 are capacitively coupled
- the 5th resonator 16E to 8th resonator 16H are capacitively coupled by capacitances C6, C7, and C8, respectively, and the 4th resonator 16D and 5th resonator 16E are coupled. It is constructed by inductive coupling at inductance L1!
- a first jump circuit 24A is connected in parallel between the third resonator 16C and the sixth resonator 16F, and the fourth resonator 16D and A second jump circuit 24B is connected in parallel between the fifth resonators 16E.
- the coupling form in the first jump circuit 24A is a form in which the coupling by the capacitor C9, the inductive coupling by the inductance L2, and the coupling by the capacitor C10 are connected in series, and the coupling in the second jump circuit 24B
- the configuration is such that the coupling by the capacitor C11, the inductive coupling by the inductance L3, and the coupling by the capacitor C12 are connected in series.
- FIG. 24 shows the change in mismatch attenuation, the attenuation characteristic, and the delay characteristic with respect to the frequency of the delay line 10J according to the tenth embodiment.
- a curve alO shows a change in mismatch attenuation
- a curve blO shows an attenuation characteristic
- a curve clO shows a delay characteristic.
- the maximum value DLm is 20.6 ns (frequency f 1)
- the maximum value DHm is 20.8 ns (frequency f 2)
- the difference (flatness) is 0. 2ns. Since the minimum value in the passband is 19.9 ns, the group delay time deviation in the passband is 0.9 ns.
- the group delay time deviation in the passband is slightly larger than that in the ninth embodiment.
- the minimum value in the passband is 19.9n. s, which is advantageous when a large amount of delay is desired.
- the slope characteristics on the low frequency side and high frequency side in the attenuation characteristics are steeper than in the case of the ninth embodiment, it is advantageous in the case of suppressing signals outside the passband. .
- the delay line 10K according to the eleventh embodiment includes a force bandpass filter 18 having a configuration substantially similar to that of the delay line 10J according to the tenth embodiment described above.
- the configuration is different as follows.
- the second interlace circuit 24B is omitted, and instead, the fourth resonator 16D and the fifth resonator 16E are coupled in a combined form in which capacitive coupling and inductive coupling are combined. It is made up.
- This coupling form is such that a coupling by a capacitor C11, an inductive coupling by an inductance L1, and a coupling by a capacitor C12 are connected in series.
- FIG. 26 shows a change in mismatch attenuation amount with respect to the frequency of the delay line 10K according to the eleventh embodiment, attenuation characteristics, and delay characteristics.
- a curve al 1 shows a change in mismatch attenuation
- a curve b 11 shows an attenuation characteristic
- a curve c 11 shows a delay characteristic.
- the maximum value DLm is 19.4 ns (frequency f 1)
- the maximum value DHm is 19.3 ns (frequency f 2)
- the difference (flatness) is 0. Ins. Since the minimum value in the pass band is 19.3 ns, the group delay time deviation in the pass band is 0. Ins.
- the flatness in the passband and the group delay time deviation in the passband are greatly improved, and the force is A large amount of delay can be obtained.
- the slope characteristics of the low frequency side and the high frequency side in the attenuation characteristic are steeper than in the ninth embodiment, they are out of the passband. It is advantageous to suppress the signal of.
- delay line according to the present invention is not limited to the above-described embodiment, but can of course have various configurations without departing from the gist of the present invention.
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Abstract
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US11/815,815 US7990231B2 (en) | 2005-03-10 | 2006-03-10 | Delay line |
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JP2005067705A JP4658644B2 (ja) | 2005-03-10 | 2005-03-10 | 遅延線 |
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PCT/JP2006/304778 WO2006095865A1 (ja) | 2005-03-10 | 2006-03-10 | 遅延線 |
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Country | Link |
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US (1) | US7990231B2 (ja) |
JP (1) | JP4658644B2 (ja) |
KR (1) | KR100965810B1 (ja) |
CN (1) | CN101138128A (ja) |
WO (1) | WO2006095865A1 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090027141A1 (en) * | 2007-06-22 | 2009-01-29 | Taiyo Yuden Co., Ltd. | Filter circuit, filter circuit device, multilayered circuit board, and circuit module each including the filter circuit |
JP2010288179A (ja) * | 2009-06-15 | 2010-12-24 | Nippon Antenna Co Ltd | バンドパスフィルタ |
JP4968305B2 (ja) * | 2009-09-29 | 2012-07-04 | Tdk株式会社 | 積層型バンドパスフィルタ |
US8196855B2 (en) * | 2009-11-23 | 2012-06-12 | Balkus Jr Carl E | Helicopter auxiliary anti-torque system |
US9634823B1 (en) | 2015-10-13 | 2017-04-25 | Kumu Networks, Inc. | Systems for integrated self-interference cancellation |
KR102075284B1 (ko) * | 2015-12-16 | 2020-02-07 | 쿠무 네트웍스, 아이엔씨. | 시간 지연 필터 |
US9979374B2 (en) | 2016-04-25 | 2018-05-22 | Kumu Networks, Inc. | Integrated delay modules |
US10454444B2 (en) | 2016-04-25 | 2019-10-22 | Kumu Networks, Inc. | Integrated delay modules |
US10103774B1 (en) | 2017-03-27 | 2018-10-16 | Kumu Networks, Inc. | Systems and methods for intelligently-tuned digital self-interference cancellation |
US10425115B2 (en) | 2018-02-27 | 2019-09-24 | Kumu Networks, Inc. | Systems and methods for configurable hybrid self-interference cancellation |
US10868661B2 (en) | 2019-03-14 | 2020-12-15 | Kumu Networks, Inc. | Systems and methods for efficiently-transformed digital self-interference cancellation |
KR102622787B1 (ko) * | 2021-10-26 | 2024-01-10 | 경희대학교 산학협력단 | 그룹 지연 성능 개선 필터 |
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JPS6437101A (en) * | 1987-07-31 | 1989-02-07 | Murata Manufacturing Co | Microwave filter |
JPH0548401U (ja) * | 1991-11-29 | 1993-06-25 | 京セラ株式会社 | 誘電体フィルタ |
JPH0758511A (ja) * | 1993-07-01 | 1995-03-03 | Se Kwang Ceramic Co Ltd | 誘電体フィルター |
JP2001085914A (ja) * | 1999-09-09 | 2001-03-30 | Tamagawa Electronics Co Ltd | 遅延線装置 |
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US3609601A (en) * | 1970-01-12 | 1971-09-28 | Collins Radio Co | Monolithic filter having "m" derived characteristics |
JPS5821845B2 (ja) * | 1974-12-28 | 1983-05-04 | 日本電気株式会社 | ユウキヨクガタタイイキツウカロハキ |
JPH0338105A (ja) * | 1989-07-05 | 1991-02-19 | Sharp Corp | バンドパスフィルタ回路 |
JPH07170108A (ja) | 1993-12-14 | 1995-07-04 | Taiyo Yuden Co Ltd | 誘電体共振器を有するバンドパスフィルタ |
JPH08186406A (ja) * | 1995-01-05 | 1996-07-16 | Matsushita Electric Ind Co Ltd | フィルター |
US5625894A (en) * | 1995-03-21 | 1997-04-29 | Industrial Technology Research Institute | Switch filter having selectively interconnected filter stages and ports |
JPH08330807A (ja) | 1995-05-31 | 1996-12-13 | Tokin Corp | 誘電体フィルタ |
US5892415A (en) * | 1995-11-20 | 1999-04-06 | Murata Manufacturing Co., Ltd. | Laminated resonator and laminated band pass filter using same |
JP2853702B2 (ja) | 1997-03-21 | 1999-02-03 | 株式会社村田製作所 | 誘電体フィルタ |
JP3240437B2 (ja) * | 1997-07-24 | 2001-12-17 | 株式会社トーキン | 群遅延時間等化型誘電体フィルタ |
JP3964078B2 (ja) * | 1999-08-23 | 2007-08-22 | 京セラ株式会社 | 分布定数フィルタ |
JP4103294B2 (ja) | 2000-03-13 | 2008-06-18 | 松下電器産業株式会社 | 帯域内群遅延一定型誘電体フィルタおよびそれを用いた歪み補償型増幅器 |
US6317013B1 (en) * | 1999-08-16 | 2001-11-13 | K & L Microwave Incorporated | Delay line filter |
EP1428289A1 (en) * | 2001-09-20 | 2004-06-16 | Paratek Microwave, Inc. | Tunable filters having variable bandwidth and variable delay |
JP3778075B2 (ja) * | 2001-12-12 | 2006-05-24 | ソニー株式会社 | フィルタ回路 |
JP4082920B2 (ja) | 2002-03-18 | 2008-04-30 | 松下電器産業株式会社 | 遅延フィルタおよびそれを用いた歪み補償型増幅器 |
JP2005026799A (ja) * | 2003-06-30 | 2005-01-27 | Taiyo Yuden Co Ltd | フィルタ回路および積層フィルタ |
US7468642B2 (en) * | 2006-12-12 | 2008-12-23 | International Business Machines Corporation | Multi band pass filters |
-
2005
- 2005-03-10 JP JP2005067705A patent/JP4658644B2/ja not_active Expired - Fee Related
-
2006
- 2006-03-10 CN CNA2006800077878A patent/CN101138128A/zh active Pending
- 2006-03-10 WO PCT/JP2006/304778 patent/WO2006095865A1/ja active Application Filing
- 2006-03-10 US US11/815,815 patent/US7990231B2/en not_active Expired - Fee Related
- 2006-03-10 KR KR1020077022558A patent/KR100965810B1/ko not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS6437101A (en) * | 1987-07-31 | 1989-02-07 | Murata Manufacturing Co | Microwave filter |
JPH0548401U (ja) * | 1991-11-29 | 1993-06-25 | 京セラ株式会社 | 誘電体フィルタ |
JPH0758511A (ja) * | 1993-07-01 | 1995-03-03 | Se Kwang Ceramic Co Ltd | 誘電体フィルター |
JP2001085914A (ja) * | 1999-09-09 | 2001-03-30 | Tamagawa Electronics Co Ltd | 遅延線装置 |
Also Published As
Publication number | Publication date |
---|---|
JP4658644B2 (ja) | 2011-03-23 |
US7990231B2 (en) | 2011-08-02 |
KR20070110408A (ko) | 2007-11-16 |
KR100965810B1 (ko) | 2010-06-24 |
US20090051465A1 (en) | 2009-02-26 |
JP2006254086A (ja) | 2006-09-21 |
CN101138128A (zh) | 2008-03-05 |
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