JPH04311101A - Device for synthesizing/distributing electric power - Google Patents

Abstract

PURPOSE:To provide an electric power synthesizing/distributing device capable of synthesizing two high frequency signals having respectively different frequency bands or distributing a signal to two high frequency signals based upon a passing loss less than a convensional example. CONSTITUTION:The electric power synthesizing/distributing device is provided with a 1st hybrid circuit having a pair of 1st and 2nd terminals and a pair of 3rd and 4th terminals, a 2nd hybrid circuit having a pair of 5th and 6th terminals and at least a 7th terminal and a phase shifting circuit electrically connected between the 3rd and 5th terminals and between the 4th and 6th terminal to shift the phases of respective high frequency signals so that the phase of the 1st high frequency signal outputted from the 5th terminal to the 7th terminal is the same as the signal outputted from the 6th terminal to the 7th terminal and the phase of the 2nd high frequency signal outputted from the 5th terminal to the 7th terminal is the same as the signal outputted from the 6th terminal to the 7th terminal at the time of inputting the 1st and 2nd high frequency signals having respectively different frequency bands to the 1st and 2nd terminals.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power combining/distributing device for combining or distributing two high frequency signals having different frequencies in a frequency band higher than an extremely high frequency band, for example.

0002

2. Description of the Related Art FIG. 13 shows a first conventional branch line type hybrid circuit (for example, Miyauchi et al., "Microwave circuit for communication", Institute of Electronics, Information and Communication Engineers, October 1981).
See May, pp. 59. ).

As shown in FIG. 13, transmission lines 11 to 14 each having a line length of λg/4 (λg is the internal wavelength on the transmission line of the high-frequency signal to be transmitted) are arranged in an annular manner and electrically connected in series. The connection points between adjacent transmission lines are used as input/output terminals T1 to T4, respectively. Here, two input terminals T1 when the branch line type hybrid circuit is used as a power synthesizer
, T2 and to the two output terminals T3, T4, respectively, have a transmission impedance Z0.
The transmission lines 12 and 14 respectively connected between the transmission lines 1 and 4 have a transmission impedance of "Equation 1", and the terminal T4 is terminated by a resistor RL equal to the transmission impedance Z0.

0004

[Math 1]

In the branch-line hybrid circuit configured as described above, when first and second high-frequency signals having different frequencies are input to the input terminals T1 and T2, respectively, the high-frequency signals are synthesized, and each After the composite signal of high frequency signals is divided into two with the power reduced by 3 dB, one of the composite signals after distribution is output to the output terminal T.
3, and the other composite signal is output to the output terminal T4. In this branch-line hybrid circuit, the output terminal T4 is terminated by the resistor RL, so the composite signal outputted to the output terminal T4 is consumed as thermal energy in the resistor RL, and the power is reduced by 3 dB. The above composite signal is output to the output terminal T3. The branch line type hybrid circuit of the first conventional example is a reversible circuit and can be used as a power distribution circuit as is well known.

Furthermore, FIG. 14 shows a second conventional power combining/distributing device that includes two channel filters and is used as an antenna sharing device. In FIG. 14, the dielectric resonators DR6 and DR7 are shown as equivalent circuits, and the same components as in FIG. 13 are given the same reference numerals.

As shown in FIG. 14, this second conventional power combining/distributing device includes dielectric resonators DR6 and D.
The output terminals of the bandpass filters 61 and 62 having R7 are both electrically connected to the output terminal T3 via impedance matching transmission lines TL61 and TL62. The bandpass filter 61 that passes only the first high-frequency signal of frequency f1 includes input/output coils L61 and L64.
and a dielectric resonator DR6, and the dielectric resonator DR6 is composed of a parallel resonant circuit in which inductances L62 and L63, a capacitor C6, and a loss resistor R6 are connected in parallel. Here, inductance L62 is electromagnetically coupled to input coil L61 by inductive coupling +M, and inductance L63 is coupled to output coil L61.
64 through inductive coupling +M. Also,
Except that the band-pass filter 62 that passes only the second high-frequency signal of frequency f2 includes a dielectric resonator DR7 and has a signal pass band different from that of the band-pass filter 61.
It is configured similarly to the bandpass filter 61. In addition, using a known impedance matching method, the electrical length from the connection point of the output terminal T3 to the ground end of the coil L64 via the transmission line TL61 and the coil L64, as well as the output terminal T
The electrical length from the connection point of 3 to the ground end of coil L74 via transmission line TL62 and coil L74 is λg.
It is set to an odd multiple of /4. Note that this second conventional power combining/distributing device is a reversible circuit, and can be used as a known power distribution device.

In the second conventional power combiner/distributor configured as described above, when the first and second high frequency signals are input from each transmitter to the input terminals T1 and T2, respectively,
The first high frequency signal passes through the band pass filter 61 and is output to the output terminal T3, and the second high frequency signal passes through the band pass filter 62 and is output to the output terminal T3. Since the bandpass filters 61 and 62 having different signal passbands are used, it is possible to prevent signals from other channels from going around to the transmitter that is the signal source.

According to the inventor's simulation, for example, when the second conventional power combining/distributing device is constructed using dielectric resonators DR6 and DR7 with no-load Q (Q0) of 50,000. , the passage loss of the first and second high frequency signals in the power combining/distributing device is 1.37 [dB]
This is significantly reduced compared to the first conventional hybrid circuit.

0010

In the hybrid circuit of the first conventional example described above, the two input high frequency signals are combined and output with their power reduced by 3 dB. In addition, in the second conventional power combining/distributing device, the no-load Q
Even if a bandpass filter is constructed using a dielectric resonator with relatively high (Q0), there is a problem in that the transmission loss of high frequency signals is still high.

An object of the present invention is to solve the above-mentioned problems and to provide power that can combine two high-frequency signals having different frequencies or distribute them into two high-frequency signals with lower passing loss than the conventional example. An object of the present invention is to provide a synthesis and distribution device.

0012

[Means for Solving the Problems] A power combining/distributing device according to claim 1 of the present invention includes a pair of first and second terminals and a pair of third and fourth terminals. , synthesizes two high frequency signals input to the first and second terminals, divides them into two, outputs one high frequency signal after the distribution to the third terminal, and outputs the other high frequency signal after the distribution. a first circuit that outputs a signal to the fourth terminal; and a fifth and sixth circuit that are paired with each other.
and another seventh terminal, and after synthesizing the two high frequency signals respectively input to the fifth and sixth terminals, the synthesized high frequency signal is input to the seventh terminal. between a second output circuit, a third terminal of the first circuit and a fifth terminal of the second circuit, and a fourth terminal of the first circuit and the second circuit; The first and second high frequency signals having different frequencies are connected to the first and second terminals of the first circuit, respectively, and the first and second high frequency signals have different frequencies.
When the first and second high frequency signals are passed through, the first high frequency signal output from the fifth terminal to the seventh terminal of the second circuit is input to the second terminal.
The second high frequency signal is in phase with the first high frequency signal outputted from the sixth terminal to the seventh terminal of the circuit and is outputted from the fifth terminal to the seventh terminal of the second circuit. Phase shifting means for shifting the phase of the first and second high frequency signals to be passed so that they are in phase with the second high frequency signal output from the sixth terminal to the seventh terminal of the second circuit. It is characterized by having the following.

In the power combining/distributing device according to claim 2, in the power combining/distributing device according to claim 1, the phase shifting means connects a fourth terminal of the first circuit to a fourth terminal of the second circuit. a connecting means for electrically connecting a sixth terminal; and a connecting means connected between a third terminal of the first circuit and a fifth terminal of the second circuit; When high frequency signals are input to the first and second terminals of the first circuit, the first and second high frequency signals are passed through, and
The first high frequency signal outputted from the fifth terminal to the seventh terminal of the second circuit is the first high frequency signal outputted from the sixth terminal to the seventh terminal of the second circuit. A second high frequency signal which is in phase and is output from the fifth terminal to the seventh terminal of the second circuit is a second high frequency signal which is output from the sixth terminal to the seventh terminal of the second circuit. The present invention is characterized by comprising a passage phase shifting means for shifting the phase of the first and second high frequency signals to be passed so that they are in phase with the high frequency signal.

Further, in the power combining/distributing apparatus according to claim 3, in the power combining/distributing apparatus according to claim 2, the first circuit is a hybrid circuit, the second circuit is a hybrid circuit, and the above-mentioned first circuit is a hybrid circuit. The pass phase shifting means is characterized in that it is a band pass filter that inverts the phase of the first or second high frequency signal to be passed.

The power combining/distributing device according to claim 4 is the power combining/distributing device according to claim 2, wherein the first
The circuit is a hybrid circuit, and the second circuit is Y
type power combining/distributing circuit, and the pass phase shifting means is a band pass filter that inverts the phase of the first or second high frequency signal to be passed.

Further, in the power combining/distributing device according to claim 5, in the power combining/distributing device according to claim 3, the second circuit further includes an eighth terminal making a pair with the seventh terminal. However, the eighth terminal is terminated by a resistor.

[0017]

[Operation] In the power combining/distributing device according to claim 1 configured as described above, for example, when the first and second high frequency signals are respectively input to the first and second terminals of the first circuit. , the first circuit combines the first and second high frequency signals, divides them into two, outputs one of the divided high frequency signals to the third terminal, and outputs the other high frequency signal after the distribution. A signal is output to the fourth terminal. Next, the phase shifting means passes the first and second high frequency signals, and the first high frequency signal outputted from the fifth terminal to the seventh terminal of the second circuit is configured to pass through the first and second high frequency signals. The second high frequency signal is in phase with the first high frequency signal outputted from the sixth terminal to the seventh terminal of the circuit and is outputted from the fifth terminal to the seventh terminal of the second circuit. After shifting the phase of the first and second high frequency signals to be passed so that they are in phase with the second high frequency signal output from the sixth terminal to the seventh terminal of the second circuit, It outputs to the fifth and sixth terminals of the second circuit. Further, the second circuit combines two high-frequency signals inputted to the fifth and sixth terminals, respectively, and then outputs the combined high-frequency signal to the seventh terminal.

Therefore, the synthesized high-frequency signal outputted to the seventh terminal of the second circuit is outputted from the fifth terminal to the seventh terminal of the second circuit by the phase shifting means. The first high frequency signal outputted from the sixth terminal to the seventh terminal of the second circuit is in phase with the first high frequency signal output from the fifth terminal to the seventh terminal of the second circuit. The first and second signals are passed through such that the second high frequency signal output from the sixth terminal to the seventh terminal of the second circuit is in phase with the second high frequency signal output from the sixth terminal to the seventh terminal of the second circuit. Since the high frequency signal of A power combining/distributing device that combines high frequency signals of two different frequencies can be realized.

Further, when the first circuit, the second circuit, and the phase shifting means are each constructed of reversible circuits, the seventh terminal of the second circuit is connected to the first and second circuits. When a composite signal of high frequency signals is input, the first high frequency signal, the second high frequency signal, or the second high frequency signal and the first high frequency signal are input to the first and second terminals of the first circuit, respectively. It is possible to realize a power combining/distributing device that divides and outputs high-frequency signals of two different frequencies with significantly reduced passage loss compared to the conventional example.

Further, in the power combining/distributing device according to claim 2, in the power combining/distributing device according to claim 1,
The phase shifting means preferably includes connecting means for electrically connecting a fourth terminal of the first circuit and a sixth terminal of the second circuit, and a third terminal of the first circuit. and a fifth terminal of the second circuit, and when the first and second high frequency signals are input to the first and second terminals of the first circuit, respectively, the first 1 and a second high frequency signal are passed through, and the first high frequency signal outputted from the fifth terminal of the second circuit to the seventh terminal is transmitted from the sixth terminal to the seventh terminal of the second circuit. A second high frequency signal that is in phase with the first high frequency signal output to the terminal of the second circuit and output from the fifth terminal to the seventh terminal of the second circuit is
passing phase shifting means for shifting the phase of the first and second high frequency signals to be passed so that they are in phase with the second high frequency signal output from the sixth terminal to the seventh terminal of the circuit; Be prepared.

Furthermore, in the power combining/distributing apparatus according to claim 3, in the power combining/distributing apparatus according to claim 2, preferably, the first circuit is a hybrid circuit, and the second circuit is a hybrid circuit. The pass phase shifting means is a band pass filter that inverts the phase of the first or second high frequency signal to be passed.

Further, in the power combining/distributing device according to claim 4, in the power combining/distributing device according to claim 2,
Preferably, the first circuit is a hybrid circuit, the second circuit is a Y-type power combining/distributing circuit, and the pass phase shifting means changes the phase of the first or second high frequency signal to be passed. It is an inverting bandpass filter.

Furthermore, in the power combining/distributing device according to claim 5, in the power combining/distributing device according to claim 3, preferably, the second circuit further includes an eighth terminal paired with the seventh terminal. The eighth terminal is terminated by a resistor. The resistor can absorb the power generated at the eighth terminal due to the passage loss of the phase shift means of the power combining/distributing device and manufacturing variations in the amount of phase shift of each circuit.

[0024]

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that in each of the following embodiments, the description will be given while ignoring losses in each hybrid circuit and each transmission line.

<First Embodiment> FIG. 1 shows a power combining/distributing device according to a first embodiment of the present invention. In FIG. 1, parts similar to those in FIGS. 13 and 14 are designated by the same reference numerals.

The power combining/distributing device of this first embodiment is as follows:
A power combining/distributing device that combines two high frequency signals having mutually different frequencies f1 and f2 or divides them into two high frequency signals, which is a so-called 3 dB directional coupler and includes two hybrid circuits having the same configuration. 1, 2, each one terminal P14, P of the hybrid circuit 1, 2
22, and the other terminals P13 and P21 of the pair of connected terminals are connected at the frequency f.
It is characterized in that it is electrically connected through a phase inversion type bandpass filter 3 that passes both high frequency signals of frequency f1 and f2 and inverts only the phase of the high frequency signal of frequency f1.

Hereinafter, the case where the power combining/distributing device of the first embodiment is used as a power combining device will be explained.

As shown in FIG. 1, input terminals T1 and T2 of the power combining/distributing device are connected to input terminals P11 and P22 of the hybrid circuit 1, respectively. The hybrid circuit 1 combines the high frequency signals of frequencies f1 and f2 input to the input terminals P11 and P12, divides the combined signal of the high frequency signals into two with the power reduced by 3 dB, and then One composite signal is output to the output terminal P13, and the other composite signal after distribution is output to the output terminal P1.
Output to 4. Here, the high frequency signal of frequency f1 outputted to the output terminal P14 has a phase that is 90° slower than the high frequency signal of frequency f1 outputted to the output terminal P13, and the high frequency signal of frequency f2 outputted to the output terminal P13. The signal has a phase that is 90° slower than the high frequency signal of frequency f2 output to output terminal P14. The output terminal P13 of the hybrid circuit 1 is provided with a phase inversion type bandpass filter 3 that allows each of the high frequency signals of the frequencies f1 and f2 to pass through each within a predetermined signal pass band, and inverts the phase of only the high frequency signal of the frequency f1. The output terminal P14 of the hybrid circuit 1 is connected to the input terminal P21 of the hybrid circuit 2 through the input terminal P21 of the hybrid circuit 2.
22. Similar to the hybrid circuit 1, the hybrid circuit 2 synthesizes each high frequency signal input to each input terminal P21, P22 and then divides it into two, so that the power is 3 dB.
Output terminal P23 outputs a composite signal of each high frequency signal that has decreased by
, P24. Further, the output terminal P23 of the hybrid circuit 2 is connected to the output terminal T3 of the power combining/distributing device, the output terminal P24 of the hybrid circuit 2 is connected to the output terminal T4, and the output terminal T4 is connected to the terminal resistor equal to the transmission impedance Z0. Terminated by RL.

In the power combining/distributing device configured as described above, a high frequency signal of frequency f1 is inputted to the input terminal P11 of the hybrid circuit 1 via the input terminal T1, and a high frequency signal of frequency f2 is inputted to the input terminal P11 of the hybrid circuit 1 via the input terminal T2. When input to the input terminal P12 of the hybrid circuit 1, the hybrid circuit 1 synthesizes each high frequency signal input to each input terminal P11, P12 and divides it into two, one of each high frequency signal whose power is reduced by 3 dB. Output the composite signal of
13 to the phase-inverting bandpass filter 3, and the other composite signal is output to the input terminal P22 of the hybrid circuit 2 via the output terminal P14. The phase inversion type bandpass filter 3 has the above-mentioned frequencies f1 and f.
After passing each of the two high-frequency signals within a predetermined signal pass band and inverting the phase of only the high-frequency signal of frequency f1, the hybrid circuit 2 outputs the high-frequency signal to the input terminal P21. Furthermore, the hybrid circuit 2 synthesizes each high frequency signal input to each input terminal P21, P22, divides it into two, and outputs one composite signal of each high frequency signal whose power is reduced by 3 dB via an output terminal P23. While outputting to terminal T3, the other composite signal is output to terminal P2.
4 to the terminal resistor RL.

Table 1 shows the phases of the high frequency signals of frequencies f1 and f2 at each set point when the power combining/distributing device of the first embodiment is used as a power combining circuit.

[0031]

[Table 1]

In Table 1, when the phase of each high frequency signal of frequency f1 and f2 input to input terminals T1 and T2 is set as a reference phase of 0°, the phase θ of each high frequency signal is 0°≦
The range is θ<360°, and the hybrid circuit is abbreviated as HB circuit.

As is clear from Table 1, the phase inversion type bandpass filter 3 allows the frequency f1 to be
The phase of only the high frequency signal is inverted. Further, as shown in TB2, the high frequency signal of frequency f1 output from the input terminal P21 of the hybrid circuit 2 to the output terminal T3 via the hybrid circuit 2 is transmitted from the input terminal P22 of the hybrid circuit 2 to the output terminal T3. The high frequency signal of frequency f2 is in phase with the high frequency signal of frequency f1 outputted to the output terminal T3 through the hybrid circuit 2, and the high frequency signal of frequency f2 outputted from the input terminal P21 of the hybrid circuit 2 to the output terminal T3 via the hybrid circuit 2 is It becomes in phase with the high frequency signal of frequency f2 outputted from the input terminal P22 of the hybrid circuit 2 to the output terminal T3. On the other hand, as shown in TB3, the high frequency signal of frequency f1 output from the input terminal P21 of the hybrid circuit 2 to the output terminal T4 via the hybrid circuit 2 is transmitted from the input terminal P22 of the hybrid circuit 2 to the output terminal T4. Frequency f1 outputted to output terminal T4 via
The high frequency signal of frequency f2, which has a phase opposite to the high frequency signal of the hybrid circuit 2 and is output from the input terminal P21 of the hybrid circuit 2 to the output terminal T3 via the hybrid circuit 2, is output from the input terminal P22 of the hybrid circuit 2 to the output terminal T3. The phase is opposite to that of the high frequency signal of frequency f2 outputted to the output terminal T3 via the high frequency signal. Therefore, at the output terminal T3, the high frequency signals of frequencies f1 and f2 are both in phase and are combined and output, while at the output terminal T4,
The high frequency signals of frequencies f1 and f2 both have opposite phases, cancel each other out, and are hardly output. Therefore, the passing loss of the power combining/distributing device configured as described above is substantially only the passing loss of the phase inversion type bandpass filter 3, and the power having the passing loss significantly reduced compared to the conventional example. A synthesis distribution device can be realized.

Note that a high frequency signal may be generated at the output terminal T4 due to manufacturing variations in the pass loss of the phase inversion type band pass filter 3 and the amount of phase shift of each circuit. To absorb the power of the signal,
The output terminal T4 is terminated with a resistor RL.

In the power combining/distributing device of this embodiment,
When two high-frequency signals having phases θ1 and θ2 are respectively input to input terminals P21 and P22 of the hybrid circuit 2, each high-frequency signal This utilizes the characteristic of the hybrid circuit 2 that when input, a composite signal of each high frequency signal is output to the output terminal P23 of the hybrid circuit 2, but no composite signal is output to the output terminal P24. That is, after each high frequency signal of frequency f1 and f2 is combined into a composite signal by hybrid circuit 1,
Only the phase of the high frequency signal of frequency f1 in one of the synthesized signals after distribution is inverted by the phase inversion type bandpass filter 3, and the one synthesis after the above distribution is passed through the phase inversion type bandpass filter 3. By combining the signal and the other synthesized signal after the distribution, which does not pass through the phase inversion type band-pass filter 3, by the hybrid circuit 2 using the above-mentioned characteristics, the power synthesis distribution can significantly reduce the passing loss. The device is realized.

In the above description of the first embodiment, the case where the power combining/distributing device is used as a power combining device is explained, but since each circuit of the power combining device is a reversible circuit, It can be used as a power distribution device. That is, when a composite signal of high frequency signals of frequencies f1 and f2 is input to terminal T3 of the device, a high frequency signal of frequency f1 is output to terminal T1, and a high frequency signal of frequency f2 is output to terminal T2. Ru.

Each transmission line in the above first embodiment is a microwave line, a quasi-millimeter wave line, or a millimeter wave line, such as a waveguide, a microstrip line, a triplate line, a coaxial line, etc., as is known in the art. can be realized.

In the above first embodiment, due to the passing loss of the phase inversion type bandpass filter 3, the level of the composite signal input to the input terminal P21 of the hybrid circuit 2 is lower than that of the composite signal input to the input terminal P22. Although the level is lower than that of the signal, in order to eliminate this level difference, a filter is provided between the output terminal P14 of the hybrid circuit 1 and the input terminal P22 of the hybrid circuit 2, which is equal to the pass loss of the phase inversion type bandpass filter 3. An attenuator may also be inserted.

Although the hybrid circuit 2 is used in the first embodiment described above, the present invention is not limited to this.
As shown in FIG. 2, a Y-type power combining/distributing circuit 5 may be used instead of the hybrid circuit 2. The Y-type power combining/distributing circuit 5 in this modification includes three transmission lines TL71 to T.
The input terminal P21 is a transmission line TL7 having a line length of λg/4 and a transmission impedance of "Equation 2".
The input terminal P22 is electrically connected to the output terminal T3 via the transmission line TL71 having a transmission impedance Z0 having a line length of λg/4, and the transmission impedance ``Math 2'' having a line length of λg/4. It is electrically connected to the output terminal T3 via the transmission line TL72. Here, λ
g is the pipe wavelength on each transmission line at the center frequency f0 defined by the following "Equation 3", and the same applies to each of the following examples.

[0040]

[Math 2]

[Math 3]

Further, instead of the Y-type power combining/distributing circuit shown in FIG. 5, a power combining/distributing device such as a Wilkinson coaxial type combining/distributing device may be used.

<Second Embodiment> FIG. 2 shows a power combining/distributing device according to a second embodiment of the present invention. In FIG. 2, the dielectric resonators DR1 and DR2 are shown as equivalent circuits, and the same components as in FIG. 1 are given the same reference numerals.

The power combining/distributing device of this second embodiment is as follows:
The power combining/distributing device of the first embodiment is characterized in that branch line hybrid circuits are used as the hybrid circuits 1 and 2, and a parallel two-stage bandpass filter is used as the phase inversion bandpass filter 3.

Hereinafter, the case where the power combining/distributing device of the second embodiment is used as a power combining device will be explained.

As shown in FIG. 2, the hybrid circuit 1 is electrically connected in series in an annular manner, and each has a power of λg/4.
It is composed of transmission lines 11 to 14 having a line length of
The transmission line 11 has input terminals P11 and P12 at both ends,
The transmission line 13 has output terminals P13 and P14 at both ends. Here, each of the transmission lines 11 and 13 has a transmission impedance Z0, and each of the transmission lines 12 and 14 has a transmission impedance of "Equation 1". Each input terminal P11, P12 is connected to input terminal T1, T2, respectively. Further, the output terminal P13 is connected to a transmission line TL2 with a transmission impedance Z0 having a line length of λg, a phase inversion type bandpass filter 3 consisting of a parallel two-stage bandpass filter, and a transmission line TL2 with a transmission impedance Z0 having a line length of λg. The output terminal P14 is connected to the input terminal P21 of the hybrid circuit 2 via the transmission line TL3, and the output terminal P14 is connected to the transmission line TL having a transmission impedance Z0 and having a line length of λg.
1 to the input terminal P22 of the hybrid circuit 2. Like the hybrid circuit 1, the hybrid circuit 2 is annularly and electrically connected in series, and each has a λ
It is composed of transmission lines 21 to 24 having a line length of g/4, and has input terminals P21 and P22 at both ends of the transmission line 21, and output terminals P23 and P24 at both ends of the transmission line 23. Here, the output terminal P23 is connected to the output terminal T3 of the power combining/distributing device, the output terminal P24 is connected to the output terminal T4, and the output terminal T4 is terminated by a resistor RL equal to the transmission impedance Z0.

The phase-inverting band-pass filter 3 is a band-pass filter 4 that includes a dielectric resonator DR1 and mainly passes only the high-frequency signal of the frequency f1 with its phase inverted.
a and a bandpass filter 4b which is provided with a dielectric resonator DR2 and mainly uses only a high frequency signal of frequency f2 without substantially phase shifting, which are connected in parallel.

The bandpass filter 4a includes transmission lines TL11 and TL12 of transmission impedance Z0 for input and output impedance matching, and input and output coils L11 and L1.
4 and a dielectric resonator DR1, this dielectric resonator DR1 is a parallel resonator in which inductances L12, L13, capacitor C1, and loss resistor R1 are connected in parallel, and one end of each element is connected to ground. Consists of circuits. Here, the inductance L12 is the input coil L1
1 by inductive coupling +M, and one end of the input coil L11 is connected to the transmission line TL11 and the transmission line TL2.
is connected to the output terminal P13 via the terminal P13, and the other end is connected to ground. Inductance L13 is electromagnetically coupled to output coil L14 by inductive coupling +M, one end of output coil L14 is connected to input terminal P21 via transmission line TL12 and transmission line TL3, and the other end is connected to ground. .

Similar to the band-pass filter 4a, the band-pass filter 4b includes transmission lines TL21 and TL22 having a transmission impedance Z0 for input and output impedance matching.
, input/output coils L21, L24, and dielectric resonator DR
2, this dielectric resonator DR2 includes inductances L22, L23, capacitor C2, and loss resistance R
2 are connected in parallel, and one end of each element is connected to ground. Here, the inductance L22 is electromagnetically coupled to the input coil L21 by inductive coupling +M, and one end of the input coil L21 is connected to the output terminal P1 via the transmission line TL21 and the transmission line TL2.
3, and the other end is connected to ground. Inductance L23 is electromagnetically coupled to output coil L24 by inductive coupling -M, and one end of output coil L24 is connected to input terminal P via transmission line TL22 and transmission line TL3.
21, and the other end is connected to ground.

Furthermore, using a known impedance matching method, the electrical length from the connection point of transmission lines TL2 and TL11 to the ground end of coil L11 via transmission line TL11 and coil L11, and the distance between transmission lines TL2 and TL21 are determined. The electrical length from the connection point of transmission line TL21 and coil L21 to the ground end of coil L21, transmission line TL3 and T
Transmission line TL12 and coil L14 from the connection point with L12
The electrical length from the connection point of the transmission line TL3 and TL22 to the ground end of the coil L14 through the transmission line TL
22 and the electrical length to the ground end of the coil L24 via the coil L24 is set to 3/4λg.

The power combining/distributing device of the second embodiment configured as described above operates in the same manner as the first embodiment, and each circuit constituting the power combining/distributing device is a reversible circuit. , similar to the first embodiment, can be used as a power distribution device.

A simulation was performed on a parallel two-stage bandpass filter composed of bandpass filters 4a and 4b connected in parallel, and the frequency characteristics of the forward transmission coefficient and forward transmission phase obtained as a result of the simulation were is shown in Figure 6. Here, each bandpass filter 4a, 4
The unloaded Q (Q0
) is set to 50,000, and the frequency difference Δf in the figure is
is defined by the following "Equation 4", and the same applies to each of the following embodiments.

[0052]

[Math 4]

[0053] In this simulation,
f1<f2, and Δf/f1≒1.76×10-4≪1
, Δf/f2≈1.74×10−4≪1, that is, the frequency f1 and the frequency f2 are set to be frequencies close to each other, and the same applies to each of the following embodiments.

As is clear from FIG. 6, the parallel two-stage bandpass filter passes each high frequency signal of frequencies f1 and f2 with a passing loss of approximately 1.7 [dB], and
It has a transmission phase of about 180° at frequency f2 and a transmission phase of about 0° at frequency f2.

Further, simulations were conducted for the power combining/distributing device of the second embodiment and the power combining/distributing device of the second conventional example, which are equipped with parallel two-stage bandpass filters having the frequency characteristics shown in FIG. The frequency characteristics of the forward transmission coefficients S31 and S32 obtained as a result of the simulation are shown in FIGS. 7 and 8. Here, the forward transmission coefficient S31 is the transmission coefficient in the positive direction from the input terminal T1 to the output terminal T3, and the forward transmission coefficient S32 is the transmission coefficient in the positive direction from the input terminal T2 to the output terminal T3.

As is clear from FIGS. 7 and 8, the forward transmission coefficients S31 and S3 of the power combining/distributing device of the second embodiment
2 is maximum at frequencies f1 and f2, respectively. Here, the forward transmission coefficient S31 of the second embodiment is the frequency f
1, which is approximately -0.98 [dB], which is increased compared to approximately -1.37 [dB] in the second conventional example, and the forward transmission coefficient S32 of the second example is approximately -0.98 [dB] at frequency f2. It is about -1.16 [dB], which is about -1.3 of the second conventional example.
This is increased compared to 7 [dB]. That is, the frequency f
It can be seen that the passage loss at f1 and f2 is reduced compared to the second conventional example.

<Third Embodiment> FIG. 3 shows a power combining/distributing device according to a third embodiment of the present invention. In FIG. 3, dielectric resonators DR1, DR2, and DR3 are shown as equivalent circuits. 1 and 2 are given the same reference numerals, but the constants of each element of the dielectric resonators DR1, DR2, and DR3 have the same reference numerals as in FIGS. 1 and 2. different from those of

The power combining/distributing device of this third embodiment is as follows:
The power combining/distributing device of the first embodiment is characterized in that branch line hybrid circuits are used as the hybrid circuits 1 and 2, and a parallel three-stage bandpass filter is used as the phase inversion bandpass filter 3.

Hereinafter, when the power combining/distributing device of the third embodiment is used as a power combining device, the differences from the second embodiment will be mainly explained.

As shown in FIG. 3, the hybrid circuit 1,
2 is constructed similarly to the second embodiment illustrated in FIG. The phase inversion type bandpass filter 3 is a dielectric resonator DR.
1 and a dielectric resonator DR2.
A circuit in which a bandpass filter 4b including a bandpass filter 4b and a bandpass filter 4c including a dielectric resonator DR3 are connected in parallel, and a transmission impedance Z having a line length of 3/4λg.
0 transmission line TL4.

Bandpass filters 4a and 4b are constructed in the same manner as in the second embodiment. Here, one end of the input coil L11 of the bandpass filter 4a is connected to the transmission line TL1.
1 and a transmission line TL4, and one end of the output coil L14 is connected to an input terminal P21 via a transmission line TL12 and a transmission line TL3. Further, one end of the input coil L21 of the bandpass filter 4b is connected to the output terminal P13 via the transmission line TL21 and the transmission line TL4, and one end of the output coil L24 is connected to the input terminal via the transmission line TL22 and the transmission line TL3. P
21.

Furthermore, like the band pass filter 4a, the band pass filter 4c includes a transmission line TL31 with a transmission impedance Z0 for input/output impedance matching.
It is composed of TL32, input/output coils L31 and L34, and a dielectric resonator DR3.
is constituted by a parallel resonant circuit in which inductances L32, L33, capacitor C3, and loss resistor R3 are connected in parallel, and one end of each element is connected to ground. Here, inductance L32 is electromagnetically coupled to input coil L31 by inductive coupling +M, one end of input coil L31 is connected to output terminal P13 via transmission line TL31 and transmission line TL4, and the other end is connected to ground. Connected. The inductance L33 is electromagnetically coupled to the output coil L34 by inductive coupling +M, and the output coil L34
One end is connected to the input terminal P21 via the transmission line TL32 and the transmission line TL3, and the other end is connected to ground. In addition, using a known impedance matching method, the transmission line T is connected from the connection point between the transmission lines TL4 and TL31.
The electrical length from the connection point between transmission lines TL3 and TL32 to the ground end of coil L34 via transmission line TL32 and coil L34 is 3/3, respectively. 4λg
is set to .

Phase inversion type bandpass filter 3 of this embodiment
is configured to perform the same operation as that of the first and second embodiments, that is, the frequency f is controlled by the transmission line TL4.
1 and f2 are phase-shifted by 3/2π, and the parallel three-stage bandpass filter (excluding transmission line TL4) consisting of three bandpass filters 4a, 4b, and 4c has frequencies f1 and f2. It passes each high frequency signal and has a transmission phase of 90° at frequency f1,
The constants of each element are set so as to have a transmission phase of -90° at the frequency f2.

The power combining/distributing device of the third embodiment configured as described above operates in the same manner as the first and second embodiments, and each circuit constituting the power combining/distributing device is a reversible circuit. Therefore, like the first and second embodiments, it can be used as a power distribution device.

A simulation was performed on a parallel three-stage bandpass filter composed of bandpass filters 4a, 4b, and 4c connected in parallel, and each of the forward transmission coefficient and forward transmission phase obtained as a result of the simulation was The frequency characteristics are shown in FIG. Here, each bandpass filter 4
Each dielectric resonator DR1, DR2, D in a, 4b, 4c
The no-load Q (Q0) of R3 is set to 50,000.

As is clear from FIG. 9, the parallel three-stage bandpass filter transmits each high frequency signal of frequencies f1 and f2 with a passing loss of about 1.5 [dB] and about 1.8 [dB], respectively. It has a transmission phase of approximately 90° at frequency f1 and a transmission phase of approximately −90° at frequency f2.

Furthermore, a simulation was performed on the power combining/distributing device of the third embodiment equipped with parallel three-stage bandpass filters having the frequency characteristics shown in FIG. 9, and the forward transmission coefficient obtained as a result of the simulation was S3
1 and S32 are shown in FIG.

As is clear from FIG. 10, the forward transmission coefficients S31 and S32 of the power combining/distributing device of the third embodiment are maximum at frequencies f1 and f2, respectively. Here, the forward transmission coefficient S31 of the third embodiment is about -0.71 [dB] at frequency f1, which is significantly increased compared to about -1.37 [dB] of the second conventional example. , also the second
This is increased and improved compared to about -0.98 [dB] in the example. Furthermore, the forward direction transmission coefficient S3 of the third embodiment
2 is approximately -0.87 [dB] at frequency f2,
This is a significant increase compared to about -1.37 [dB] in the second conventional example, and is also increased and improved compared to about -1.16 [dB] in the second embodiment. That is, frequencies f1, f
It can be seen that the passage loss in No. 2 is significantly reduced compared to the second conventional example.

<Fourth Embodiment> FIG. 4 shows a power combining/distributing device according to a fourth embodiment of the present invention. In FIG. 4, the dielectric resonators DR4 and DR5 are shown as equivalent circuits. Components similar to those in FIGS. 1, 2, and 3 are designated by the same reference numerals.

The power combining/distributing device of this fourth embodiment is as follows:
The power combining/distributing device of the first embodiment is characterized in that branch line hybrid circuits are used as the hybrid circuits 1 and 2, and a cascaded two-stage bandpass filter is used as the phase inversion bandpass filter 3.

[0071] Hereinafter, when the power combining/distributing device of the fourth embodiment is used as a power combining device, the differences from the second embodiment will be mainly explained.

As shown in FIG. 4, the hybrid circuit 1,
2 is constructed similarly to the second embodiment illustrated in FIG. The phase inversion type bandpass filter 3 includes transmission lines TL41 and TL42 of transmission impedance Z0 for input and output impedance matching, and input and output coils L41 and L46.
and two dielectric resonators DR4 electrically connected in cascade.
, DR5. The dielectric resonator DR4 is composed of a parallel resonant circuit in which inductances L42 and L43, a capacitor C4, and a loss resistor R4 are connected in parallel, and one end of each element is connected to ground.
R5 is inductance L44, L45 and capacitor C
5 and a loss resistor R5 are connected in parallel, and one end of each element is connected to ground. Here, the inductance L42 is electromagnetically coupled to the input coil L41 by inductive coupling +M, and the input coil L4
1 is connected to the output terminal P13 via the transmission line TL41 and the transmission line TL2, and the other end is connected to the ground. Further, the inductance L43 is electromagnetically coupled to the inductance L44 by inductive coupling +M'. Furthermore, the inductance L45 is electromagnetically coupled to the output coil L46 by inductive coupling +M, and the output coil L4
One end of 6 is connected to input terminal P21 via transmission line TL42, and the other end is connected to ground. In addition, using a known impedance matching method, the transmission line TL2
Transmission line TL41 and coil L from the connection point between and TL41
41 to the ground end of coil L41, and from input terminal P21 to transmission line TL42 and coil L4.
6 to the ground end of the coil L46 is set to 3/4λg.

Phase inversion type bandpass filter 3 of this embodiment
is configured to perform the same operation as that of the first to third embodiments, that is, the two dielectric resonators DR4 and D
The cascaded two-stage bandpass filter with R5 has a frequency f
1 and f2, has a transmission phase of 180° at frequency f1, and has a transmission phase of 180° at frequency f1.
The constants of each element are set so as to have a transmission phase of 0° at No. 2.

The power combining/distributing device of the fourth embodiment configured as described above operates in the same manner as the first to third embodiments, and each circuit constituting the power combining/distributing device is a reversible circuit. Therefore, similarly to the first to third embodiments,
It can be used as a power distribution circuit.

A simulation was performed on a cascaded two-stage bandpass filter equipped with two dielectric resonators DR4 and DR5, and the frequency characteristics of the forward transmission coefficient and forward transmission phase obtained as a result of the simulation are shown in the figure. 11. Here, the no-load Q of each dielectric resonator DR4, DR5 is
(Q0) is set to 50,000.

As is clear from FIG. 11, the cascaded two-stage bandpass filter transmits each high frequency signal of frequencies f1 and f2 with a passing loss of approximately 1.8 [dB] and approximately 2.0 [dB], respectively. It has a transmission phase of about 180° at frequency f1 and a transmission phase of about 0° at frequency f2.

Further, a simulation was performed on the power combining/distributing device of the fourth embodiment, which is equipped with cascaded two-stage bandpass filters having the frequency characteristics shown in FIG.
The forward transmission coefficient S obtained as a result of the simulation
FIG. 12 shows the frequency characteristics of S31 and S32.

As is clear from FIG. 12, the forward transmission coefficients S31 and S32 of the power combining/distributing device of the fourth embodiment are maximum at frequencies f1 and f2, respectively. Here, the forward transmission coefficient S31 of the fourth embodiment is approximately -1.02 [dB] at frequency f1, which is increased compared to approximately -1.37 [dB] of the second conventional example, and , the forward transmission coefficient S32 of the fourth embodiment is approximately −1 at frequency f2.
．． 11[dB], which is about -1.37[dB] in the second conventional example.
dB]. That is, the frequency f1,
It can be seen that the passage loss at f2 is reduced compared to the second conventional example.

<Other Embodiments> In the second to fourth embodiments described above, branch line type hybrid circuits 1 and 2
However, the present invention is not limited to this, and may also be applied to other types of hybrid circuits such as a 1/4 wavelength distribution coupling type hybrid circuit, a rat race type hybrid circuit, a phase inversion type hybrid ring circuit, or a 3 dB directional coupler. may also be used.

In the second to fourth embodiments described above, the phase-inverting bandpass filter 3 equipped with a dielectric resonator is used, but the present invention is not limited to this, and the resonator may be a cavity resonator. Alternatively, the phase-inverting bandpass filter 3 may be configured using a series resonant circuit or a parallel resonant circuit configured with a distributed constant circuit or a lumped constant circuit.

In each of the above embodiments, the output terminal P14 of the hybrid circuit 1 and the input terminal P22 of the hybrid circuit 2 (hereinafter referred to as the first connection section) are electrically connected, and the output terminal P13 and input terminal P2
1 (hereinafter referred to as a second connection section), a phase inversion type bandpass filter 3 is connected. however,
The present invention is not limited to this, and may be applied only to the first connection section (hereinafter referred to as the first connection case), only to the second connection section (hereinafter referred to as the second connection case), or to the above-mentioned connection section only (hereinafter referred to as the second connection case). When first and second high frequency signals having different frequencies are respectively input to the input terminals P11 and P12 of the hybrid circuit 1 in the first and second connection sections, the first and second high frequency signals are At the same time, the first high frequency signal outputted from the input terminal P21 of the hybrid circuit 2 to the output terminal P23 becomes in phase with the first high frequency signal outputted from the input terminal P22 of the hybrid circuit 2 to the output terminal P23, and The above-mentioned passing is performed so that the second high-frequency signal outputted from the input terminal P21 of the hybrid circuit 2 to the output terminal P23 is in phase with the second high-frequency signal outputted from the input terminal P22 of the hybrid circuit 2 to the output terminal P23. A phase shift circuit may be provided to shift the phase of the first and second high frequency signals. In the first connection case, the second connection section is directly connected via a transmission line, and in the second connection case, the first connection section is directly connected via a transmission line. connected to.

[0082]

Effects of the Invention As detailed above, according to the present invention, there is provided a pair of first and second terminals, a pair of third and fourth terminals, and the first and second terminals are arranged in a pair. The two high frequency signals respectively input to the terminals are combined and divided into two, one high frequency signal after the distribution is outputted to the third terminal, and the other high frequency signal after the distribution is output to the fourth terminal. at least a first circuit that outputs a signal to a terminal, a pair of fifth and sixth terminals, and a separate seventh terminal, and two high-frequency signals input to the fifth and sixth terminals, respectively. a second circuit that outputs the synthesized high-frequency signal to the seventh terminal after synthesizing the signals; and a second circuit that outputs the synthesized high-frequency signal to the seventh terminal; First and second high-frequency signals having different frequencies are electrically connected between the fourth terminal of the first circuit and the sixth terminal of the second circuit, and the first and second high-frequency signals have different frequencies from each other. When input to the first and second terminals of the circuit, the first and second high frequency signals are passed through, and the first signal is output from the fifth terminal to the seventh terminal of the second circuit. A high frequency signal is transmitted from the sixth terminal to the seventh terminal of the second circuit.
A second high frequency signal that is in phase with the first high frequency signal output to the terminal and output from the fifth terminal to the seventh terminal of the second circuit is connected to the sixth terminal of the second circuit. and a phase shifting means for shifting the phase of the first and second high frequency signals to be passed so that they are in phase with the second high frequency signal outputted to the seventh terminal, compared to the conventional example. As a result, it is possible to realize a power combining/distributing device that combines high frequency signals of two different frequencies or distributes them into high frequency signals of the two frequencies with significantly reduced passage loss.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a power combining/distributing device according to a first embodiment of the present invention.

FIG. 2 is a block diagram of a power combining/distributing device according to a second embodiment of the present invention.

FIG. 3 is a block diagram of a power combining/distributing device according to a third embodiment of the present invention.

FIG. 4 is a block diagram of a power combining/distributing device according to a fourth embodiment of the present invention.

FIG. 5 is a block diagram of a power combining/distributing device that is a modification of the first embodiment according to the present invention.

6 is a graph showing frequency characteristics of a forward transmission coefficient and a forward transmission phase of a parallel two-stage bandpass filter used in the power combining/distributing device shown in FIG. 2; FIG.

[FIG. 7] Forward transmission coefficients S31, S of the power combining/distributing device illustrated in FIG. 2 and the second conventional power combining/distributing device
32 is a graph showing each frequency characteristic of No. 32.

8 is a graph in which a part of the frequency characteristics shown in FIG. 7 is enlarged.

9 is a graph showing frequency characteristics of a forward transmission coefficient and a forward transmission phase of a parallel three-stage bandpass filter used in the power combining/distributing device shown in FIG. 3. FIG.

[Figure 10] The power combining/distributing device illustrated in Figure 3 and the second
The forward transmission coefficient S31 of the conventional power combining/distributing device is
It is a graph which shows each frequency characteristic of S32.

11 is a graph showing frequency characteristics of a forward transmission coefficient and a forward transmission phase of a cascaded two-stage bandpass filter used in the power combining/distributing device shown in FIG. 4; FIG.

[Figure 12] The power combining/distributing device illustrated in Figure 4 and the second
The forward transmission coefficient S31 of the conventional power combining/distributing device is
It is a graph which shows each frequency characteristic of S32.

FIG. 13 is a block diagram of a first conventional branch line type hybrid circuit.

FIG. 14 is a block diagram of a second conventional power combining/distributing device that includes two channel filters and is used as an antenna sharing device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1, 2...Hybrid circuit, 3...Phase inversion type bandpass filter, 5...Y-type power combining/distributing circuit, P11, P12, P21, P22...Input terminal, P13,
P14, P23, P24...output terminal, RL...resistance.

Claims (5)

[Claims] Claim 1: A device comprising a pair of first and second terminals and a pair of third and fourth terminals, and synthesizes two high-frequency signals input to the first and second terminals, respectively. and a first circuit that divides the high frequency signal into two, outputs one high frequency signal after the distribution to the third terminal, and outputs the other high frequency signal after the distribution to the fourth terminal. at least a fifth and a sixth terminal and another seventh terminal;
a second circuit that combines two high-frequency signals respectively input to the terminals and then outputs the combined high-frequency signal to the seventh terminal; a third terminal of the first circuit and the second circuit;
and a fifth terminal of the first circuit and a fourth terminal of the first circuit and a sixth terminal of the second circuit, and have different frequencies. When a second high frequency signal is input to the first and second terminals of the first circuit, the first and second high frequency signals are passed through, and the fifth terminal of the second circuit The first high frequency signal output from the sixth terminal to the seventh terminal is in phase with the first high frequency signal output from the sixth terminal to the seventh terminal of the second circuit, and the second high frequency signal outputted from the fifth terminal to the seventh terminal is in phase with the second high frequency signal outputted from the sixth terminal to the seventh terminal of the second circuit; A power combining/distributing device comprising: phase shifting means for shifting the phase of the first and second high frequency signals to be passed. 2. The phase shifting means includes a connecting means for electrically connecting a fourth terminal of the first circuit and a sixth terminal of the second circuit; 3 and the fifth terminal of the second circuit, and when the first and second high frequency signals are input to the first and second terminals of the first circuit, respectively. , the first high frequency signal is passed through the first and second high frequency signals, and the first high frequency signal output from the fifth terminal to the seventh terminal of the second circuit is transmitted to the sixth terminal of the second circuit. the first output from the seventh terminal
A second high frequency signal that is in phase with the high frequency signal and is output from the fifth terminal to the seventh terminal of the second circuit is output from the sixth terminal to the seventh terminal of the second circuit. 2. The power combining/distributing device according to claim 1, further comprising a passage phase shifting means for shifting the phase of the first and second high frequency signals to be passed so that they are in phase with the second high frequency signal. Device. 3. The first circuit is a hybrid circuit, the second circuit is a hybrid circuit, and the pass phase shifting means inverts the phase of the first or second high frequency signal to be passed. The power combining/distributing device according to claim 2, wherein the power combining/distributing device is a bandpass filter. 4. The first circuit is a hybrid circuit, and the second circuit is a Y-type power combining/distributing circuit,
3. The power combining/distributing device according to claim 2, wherein the pass phase shifting means is a band pass filter that inverts the phase of the first or second high frequency signal to be passed. 5. The second circuit further includes an eighth terminal paired with the seventh terminal, and the eighth terminal is terminated by a resistor. power combining and distribution equipment.