WO2005004322A1 - 発振器装置および送受信装置 - Google Patents
発振器装置および送受信装置 Download PDFInfo
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- WO2005004322A1 WO2005004322A1 PCT/JP2004/009319 JP2004009319W WO2005004322A1 WO 2005004322 A1 WO2005004322 A1 WO 2005004322A1 JP 2004009319 W JP2004009319 W JP 2004009319W WO 2005004322 A1 WO2005004322 A1 WO 2005004322A1
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- resonator
- oscillation circuit
- dielectric
- electrode
- dielectric substrate
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/10—Dielectric resonators
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/18—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance
- H03B5/1864—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a dielectric resonator
- H03B5/187—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a dielectric resonator the active element in the amplifier being a semiconductor device
- H03B5/1876—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a dielectric resonator the active element in the amplifier being a semiconductor device the semiconductor device being a field-effect device
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0237—High frequency adaptations
- H05K1/0243—Printed circuits associated with mounted high frequency components
Definitions
- the present invention relates to an oscillator device that oscillates a high-frequency electromagnetic wave such as a microwave and a millimeter wave, and a transmitting and receiving device such as a communication device and a radar device using the oscillator device.
- a high-frequency electromagnetic wave such as a microwave and a millimeter wave
- a transmitting and receiving device such as a communication device and a radar device using the oscillator device.
- Patent Document 1 Japanese Patent Application Laid-Open No. H11-330818
- an oscillation circuit section and a dielectric resonator section are provided side by side on the same dielectric substrate, and a ribbon or a wire is used between them. I was connected.
- the electromagnetic fields of the oscillation circuit section and the dielectric resonator section can be directly coupled, and these can be easily and strongly coupled.
- an oscillation circuit portion is formed on a substrate, a TE010 mode resonator is formed on another substrate, and a TE010 mode resonator is bonded to the substrate of the oscillation circuit portion.
- a TE010 mode resonator has a high Q (Quality factor) characteristic, it was possible to configure an oscillator having excellent noise characteristics.
- Non-Patent Document 1 K. SAKAMOTO et al, "A Millimeter Wave DR-VCO on Planar Type Dielectric Resonator with Small Size and Low Phase Noise", IEICE Trans. Electron., IEICE, Japan, January 1999, Vol. E82_C, No. l, pp.119-125
- a frequency control circuit for controlling the oscillation frequency, a terminating resistor, and the like are provided.
- the induction used for the dielectric resonator section is used.
- the electric circuit board has a high dielectric constant and thus tends to be expensive.
- the area of the electric circuit board is large, so that the manufacturing cost of the entire oscillator device is high.
- the dielectric resonator unit and the oscillation circuit unit are provided side by side and connected between them by using a ribbon or a wire, the oscillator device is not used in a high frequency band (particularly, a millimeter wave band). There was a tendency for characteristic variations to increase.
- the TE010 mode resonator needs to have cavities on the upper and lower sides (front side and back side) of its electrode surface, the structure of the entire oscillator device is complicated and the manufacturing cost is increased. There are also problems.
- the TE010 mode resonator has a magnetic field spread in a direction perpendicular to the electrode surface, it is necessary to keep the distance between the lid and bottom conductors forming the cavity and the electrode surface of the resonator at least to some extent. Therefore, it has been difficult to reduce the height of the oscillator device.
- the present invention has been made in view of the above-described problems of the related art, and an object of the present invention is to provide an oscillator device and a transmission / reception device that can be used for high-output wideband modulation and that can reduce manufacturing costs. .
- the present invention provides an oscillation circuit board, an oscillation circuit unit provided on the oscillation circuit board, for oscillating a signal of a predetermined oscillation frequency, and a dielectric for setting the oscillation frequency.
- the dielectric resonator unit includes at least a dielectric substrate stacked on the surface of the oscillation circuit substrate and electrodes provided on both surfaces of the dielectric substrate. It is characterized in that one of the electrodes is constituted by a TM010 mode resonator having a circular shape, and an excitation electrode provided on the dielectric substrate and connected to the oscillation circuit unit and coupled to the TM010 mode resonator.
- the dielectric resonator section is composed of the TM010 mode resonator and the excitation electrode, the frequency control circuit and the terminating resistor can be omitted from the dielectric substrate, and the dielectric substrate can be downsized. . Therefore, the mass productivity of the oscillator device can be improved by reducing the characteristic variation, and the manufacturing cost can be reduced by using a small-sized dielectric substrate. Further, since the TM010 mode resonator is used, higher output and broadband modulation can be performed as compared with the case where the TE010 mode resonator is used.
- the oscillation circuit section includes a transmission line having a ground electrode provided on the back surface of the oscillation circuit substrate, and the back surface of the dielectric substrate among the two electrodes of the TM010 mode resonator. Is connected to a land provided on the surface of the oscillation circuit board, and the land is connected to a ground electrode of the transmission line through a through hole provided through the oscillation circuit board. It is preferred that
- the electrode provided on the back surface of the dielectric substrate can be connected to the ground electrode of the transmission line through the land and the through hole. For this reason, no cavity space is required on the oscillation circuit substrate side (the back surface side of the dielectric substrate) of the TM010 mode resonator.
- the frequency sensitivity to the height of the cavity is reduced. Low ,.
- the sensitivity of the resonance frequency to the presence or absence of the cover on the front surface side of the dielectric substrate is low, and it is not necessary to form a cavity using a conductive cover.
- the height dimension of the entire resonator device can be reduced, the structure of the resonator device can be simplified, and the mass productivity can be improved and the manufacturing cost can be reduced.
- an electrode provided on the back surface of the dielectric substrate and the land may be connected by using a bump.
- the oscillation circuit section has a transmission line having a ground electrode provided on the surface of the oscillation circuit board, and of the two electrodes of the TM010 mode resonator,
- the electrode provided on the back surface may be connected to a ground electrode of the transmission line provided on the front surface of the oscillation circuit board.
- the electrode provided on the back surface of the dielectric substrate can be connected to the ground electrode of the transmission line. There is no need to provide a cavity space on the side (the back side of the dielectric substrate). Also, since the sensitivity of the resonance frequency to the presence or absence of the cover on the surface side of the dielectric substrate is low, it is not necessary to form a cavity using a conductive cover. As a result, the height of the entire resonator device can be reduced, the structure of the resonator device can be simplified, and the mass productivity can be improved and the manufacturing cost can be reduced.
- the oscillation circuit board is provided with a frequency control circuit section for controlling the oscillation frequency
- the dielectric substrate is provided with another excitation electrode coupled to the TM010 mode resonator.
- the other excitation electrode may be connected to the frequency control circuit section.
- a transmitting / receiving device such as a radar device and a communication device may be configured using the oscillator device according to the present invention. This makes it possible to use the transmitting and receiving device over a wide band and to manufacture The manufacturing cost can be reduced.
- FIG. 1 is a plan view showing an oscillator device according to a first embodiment.
- FIG. 2 is an electric circuit diagram showing the oscillator device in FIG. 1.
- FIG. 3 is an enlarged perspective view showing a dielectric resonator chip and the like in FIG. 1;
- FIG. 4 is an exploded perspective view showing a dielectric resonator chip and the like in FIG. 1 in an enlarged manner.
- FIG. 5 is an exploded plan view showing the dielectric resonator chip and the like in FIG. 1 in an enlarged manner.
- FIG. 6 is an enlarged plan view showing the dielectric resonator chip in FIG. 1 alone.
- FIG. 7 is an enlarged bottom view showing the dielectric resonator chip in FIG. 1 alone.
- FIG. 8 is an exploded perspective view showing a calculation model of a dielectric resonator chip and the like.
- FIG. 9 is a cross-sectional view showing a calculation model of a dielectric resonator chip and the like as viewed in the directions indicated by arrows IX-IX in FIG.
- FIG. 10 is a characteristic diagram showing a relationship between a gap of a dielectric resonator chip and the like in FIG. 9, a resonance frequency, and a degree of concentration of electric energy.
- FIG. 11 is a characteristic diagram showing a relationship between a frequency and a return loss by the dielectric resonator chip in FIG. 1.
- FIG. 12 is a characteristic diagram showing an enlarged portion from 37.5 GHz to 38.5 GHz in FIG.
- FIG. 13 is an enlarged plan view showing a dielectric resonator chip according to a first modification.
- FIG. 14 is an enlarged bottom view showing the dielectric resonator chip in FIG. 13.
- FIG. 15 is an enlarged plan view showing a dielectric resonator chip according to a second modification.
- FIG. 16 is an enlarged bottom view showing the dielectric resonator chip in FIG.
- FIG. 17 is a block diagram showing a communication device according to a second embodiment.
- Dielectric resonator chip Dielectric resonator section
- FIGS. 1 to 7 show an oscillator device and the like according to the first embodiment.
- Reference numeral 1 denotes an oscillation circuit board made of a dielectric material.
- the oscillation circuit board 1 is formed of, for example, a ceramic material, a resin material, or the like having a dielectric constant lower than that of a dielectric substrate 22 described later, and has a substantially square shape. It has a flat shape.
- Reference numeral 2 denotes an oscillation circuit section provided on the surface of the oscillation circuit board 1.
- the oscillation circuit section 2 includes a FET 3, a microstrip line 5, and a bias circuit 6, which will be described later.
- the oscillation circuit section 2 is supplied with a power supply voltage through a power supply terminal 1A, oscillates a signal having a predetermined oscillation frequency set by a dielectric resonator chip 21 described later, and outputs this signal through an output terminal 1B. are doing.
- Reference numeral 3 denotes a field effect transistor (hereinafter referred to as FET3) as an amplifying element provided on the front surface of the oscillation circuit board 1, and a gate terminal G of the FET3 is provided on almost the entire back surface of the oscillation circuit board 1.
- FET3 field effect transistor
- the base end of the microstrip line 5 as a transmission line provided with the ground electrode 4 Connected to the side.
- the source terminal S of the FET 3 is connected to a bias circuit 6 on the source side and to an inductive stub 7 composed of a microstrip line, and the inductive stub 7 functions as an inductor for controlling a feedback frequency. ing.
- the drain terminal D of the FET 3 is connected to the power terminal 1A via the filter circuit 8 and the bias resistor 9, and to the output terminal 1B via the coupled line 10 for cutting off the DC component. It is connected.
- the filter circuit 8 includes an inductive stub 11 forming a choke coil connected between the drain terminal D and the bias resistor 9 and a capacitor having one end connected to a connection point between the inductive stub 11 and the bias resistor 9. The other end of the capacitor 12 is connected to the ground terminal 4A.
- a surge removing capacitor 13 is connected between the power supply terminal 1A and the ground terminal 4A.
- the microstrip line 5 has its distal end connected to the ground terminal 4A via a terminating resistor 14 composed of a chip resistor, and at a midpoint in the length direction to a dielectric resonator chip 21 described later.
- the end of the branched line is a connecting portion 5A connected to an excitation electrode 24 described later.
- Each ground terminal 4A is connected to the ground electrode 4 through, for example, a through hole.
- Reference numeral 15 denotes a frequency control circuit section provided on the surface of the oscillation circuit board 1.
- the frequency control circuit section 15 is disposed on the opposite side of the oscillation circuit section 2 with a dielectric resonator chip 21 described later interposed therebetween. Has been done.
- the frequency control circuit section 15 includes a microstrip line 16 having one end connected to the dielectric resonator chip 21 and a variable capacitance diode 17 (varactor) connected to the other end of the microstrip line 16 as a modulation element. Diode).
- variable capacitance diode 17 has a power source terminal connected to the microstrip line 16 and an anode terminal connected to the ground terminal 4A.
- a control input terminal 1C is connected to a power source terminal of the variable capacitance diode 17 via an inductive stub 18 forming a choke coil.
- the distal end side of the microstrip line 16 is a connection portion 16A connected to an excitation electrode 25 described later.
- the frequency control circuit unit 15 changes the capacitance of the variable capacitance diode 17 according to the control voltage applied to the control input terminal 1C, and controls the oscillation frequency (resonance frequency). I control
- Reference numeral 19 denotes a land located between the oscillation circuit section 2 and the frequency control circuit section 15 and provided on the surface of the oscillation circuit board 1.
- the land 19 is formed by a conductive thin film such as a metal material. Has been established.
- the land 19 has a circular shape smaller in diameter than the resonator electrode 23B of the TM010 mode resonator 23 described later, and a metal plating is applied to the inner wall surface of the land 19 through the oscillation circuit board 1 at a central portion thereof.
- Through holes 20 are provided.
- the land 19 is connected to the ground electrode 4 provided on the back surface of the oscillation circuit board 1 through the through hole 20.
- Reference numeral 21 denotes a dielectric resonator chip as a dielectric resonator unit provided between the oscillation circuit unit 2 and the frequency control circuit unit 15.
- the dielectric resonator chip 21 is a dielectric resonator chip described later. It comprises a body substrate 22, a TM010 mode resonator 23, and excitation electrodes 24 and 25, and sets the oscillation frequency of the oscillator device.
- Reference numeral 22 denotes a dielectric substrate that forms the main body of the dielectric resonator chip 21.
- the dielectric substrate 22 is made of, for example, a ceramic material or the like having a higher dielectric constant than the oscillation circuit substrate 1. It is formed and has a substantially rectangular flat plate shape (chip shape) thicker than the oscillation circuit substrate 1.
- the dielectric substrate 22 is positioned between the oscillation circuit unit 2 and the frequency control circuit unit 15 and is mounted on the surface of the oscillation circuit substrate 1 in a stacked manner.
- Reference numeral 23 denotes a TM010 mode resonator provided at the center of the dielectric resonator chip 21.
- the TM010 mode resonator 23 is located at the center of the dielectric substrate 22 and has a front surface and a rear surface. It is constituted by the provided resonator electrodes 23A and 23B.
- the resonator electrodes 23A and 23B are formed using a conductive thin film of a metal material or the like, are formed in a substantially circular shape, are arranged at positions facing each other, and have a diameter dimension according to the resonance frequency. Is set to the specified value.
- the resonator electrode 23B provided on the back side of the dielectric substrate 22 is connected to a land 19 using a bump 26 described later, and is grounded through a through hole 20. Connected to electrode 4.
- Reference numerals 24 and 25 denote excitation electrodes provided on the back surface of the dielectric substrate 22.
- the excitation electrodes 24 and 25 are arranged at substantially symmetric positions with respect to the resonator electrode 23B, for example. the same It is formed by sputtering, vapor deposition or the like together with the resonator electrode 23B using a conductive thin film.
- the excitation electrodes 24, 25 are connected to the coupling portions 24A, 25A extending in an arc shape along the outer periphery of the resonator electrode 23B in a state of being separated from the resonator electrode 23B, and a dielectric material is formed from the center of the coupling portions 24A, 25A. It is constituted by connecting portions 24B and 25B extending toward the outer edge of the substrate 22, and has a substantially T-shape as a whole.
- the connecting portion 24B of the excitation electrode 24 is connected to the microstrip line 5 of the oscillation circuit portion 2 using a bump 26 described later, and the connecting portion 25B of the excitation electrode 25 is connected to the frequency by using the bump 26. It is connected to the microstrip line 16 of the control circuit section 15.
- Reference numeral 26 denotes a bump for bonding the oscillation circuit substrate 1 and the dielectric substrate 22.
- the bump 26 is formed using a conductive metal material such as gold, for example. Glued to board 1. Specifically, the bumps 26 are previously attached to the lands 19 and the connecting portions 5A and 16A of the microstrip lines 5 and 16, and in this state, the dielectric resonator chip 21 is mounted on the oscillation circuit board 1 and flip-chip bonded. By doing so, the bump 26 is pressed. The bump 26 connects the land 19 to the resonator electrode 23B of the TM010 mode resonator 23 and connects the connection portions 5A and 16A of the microstrip lines 5 and 16 to the excitation electrodes 24 and 25.
- the oscillator device has the above-described configuration, and the operation thereof will be described next.
- a signal corresponding to the resonance frequency of dielectric resonator chip 21 (TM010 mode resonator 23) is input to gate terminal G of FET3.
- the oscillation circuit section 2 and the dielectric resonator chip 21 constitute a band reflection type oscillation circuit, so that the FET 3 amplifies a signal corresponding to the resonance frequency of the TM010 mode resonator 23 and outputs the signal to the output terminal. Output to the outside through 1B.
- the frequency control circuit unit 15 including the variable capacitance diode 17 is connected to the dielectric resonator chip 21, the dielectric resonator chip 21 is controlled according to the value of the control voltage applied to the control input terminal 1C.
- the resonance frequency of the chip 21 can be set variably.
- the entire oscillator device functions as a voltage controlled oscillator (VCO).
- the no-load Q (Qo) between the TM010 mode resonator and the TE010 mode resonator is
- the TE010 mode resonator shows a higher value, and it is known that the no-load Q is better (Qo in Table 1).
- the no-load Q deteriorates as compared with the case of a single resonator. Therefore, the TE010 mode resonator is not always better. Therefore, a reaction type resonance circuit was configured using the TM010 mode resonator and the TE010 mode resonator as in the present embodiment, and the characteristics of the respective circuits were compared. The results are shown in Table 1.
- the results of FIG. 10 show that the thickness T1 of the dielectric substrate 22 is 0.3 mm, the outer diameter D1 of the circular dielectric substrate 22 is 1.4 mm, and the thickness of the oscillation circuit substrate 1 is 1.4 mm.
- the dimension T2 is 0.2 mm
- the outer diameter dimension of the circular oscillation circuit board 1 is 1.7 mm
- the dimension D2 is 1.7 mm
- the resonator electrodes 23A and 23B are
- the outer diameter D3 is 0.8 mm
- the outer diameter D4 of the land 19 is 0.6 mm
- the inner diameter D5 of the through hole 20 is 0.4 mm.
- the dielectric resonator chip 21 is mounted on the oscillation circuit board 1 using the bumps 26 (bump mounting), the height dimension (thickness dimension) of the bumps 26 is Even if it fluctuates in the range of 50 xm, it is possible to obtain an oscillator device with less variation in resonance frequency and excellent mass productivity.
- the oscillation circuit substrate 1 was actually formed using an alumina material, and an oscillator device having the 38 GHz band dielectric resonator chip 21 mounted on the oscillation circuit substrate 1 was formed. Then, the reflection loss (RL) was actually measured when the dielectric resonator chip 21 of this oscillator device was covered with a conductive cover (not shown) and when the cover was omitted. The results are shown in FIGS.
- the results of FIGS. 11 and 12 were measured with the thickness of the oscillation circuit substrate 1 set to 0.2 mm and the thickness of the dielectric substrate 22 set to 0.4 mm.
- the dielectric substrate 22 had a square shape of 2.5 mm ⁇ 2.5 mm and a relative dielectric constant ⁇ r of 24.
- the height of the space between the surface of the dielectric substrate 22 and the cover was 0.6 mm, and the cover was formed in a 3 mm ⁇ 3 mm square box shape.
- the resonance characteristics (resonance frequency and reflection loss) of the TM010 mode hardly change depending on the presence or absence of the cover, and the fluctuation rate of the resonance frequency is 0.1% or less. It turns out that it is.
- electric energy electric field E, magnetic field H
- the magnetic field H is applied to the resonator electrodes 23A and 23B. This is because they are formed concentrically with respect to the center position and are reflected at the boundary between the end surface (open end) of the dielectric substrate 22 and the air, so that leakage to the outside is small.
- a magnetic field is formed in the thickness direction (height direction) of the dielectric substrate, and the magnetic field is generated outside the dielectric substrate. Leaks to For this reason, the TE010 mode resonator tends to be influenced by the cover through the magnetic field, and the fluctuation rate of the resonance frequency tends to increase.
- the dielectric resonator chip 21 including the TM010 mode resonator 23 since the dielectric resonator chip 21 including the TM010 mode resonator 23 is used, the resonance characteristic variation due to the presence or absence of the cover is different from the case where the TE010 mode resonator is used. Can be reduced. As a result, since there is no need to provide a cover for covering the dielectric resonator chip 21, the package of the resonator device can be simplified, and the productivity can be increased.
- the excitation electrodes 24 and 25 are provided on the oscillation circuit substrate 1. Compared with the case of the beam splitting, the variation in the coupling amount between the TM010 mode resonator 23 and the excitation electrodes 24 and 25 can be reduced, and the characteristics of each oscillator device can be kept almost constant.
- the dielectric resonator chip 21 is composed of the TM010 mode resonator 23 and the excitation electrodes 24 and 25, the frequency control circuit and the terminating resistor can be omitted from the dielectric substrate 22, and an expensive high dielectric
- the dielectric substrate 22 having a high efficiency can be reduced in size. Accordingly, the mass productivity of the oscillator device can be improved by reducing the characteristic variation, and the manufacturing cost can be reduced by using the small dielectric substrate 22.
- the resonator electrode 23 B provided on the back surface of the dielectric substrate 22 is connected to a land 19 provided on the surface of the oscillation circuit board 1, and the land 19 is provided through the oscillation circuit board 1. Connection to the ground electrodes 4 of the microstrip lines 5 and 16 through the through holes 20, no cavity space is required on the oscillation circuit board 1 side of the TM010 mode resonator 23 (on the back side of the dielectric substrate 22). .
- the cavity has a high level of radiating less magnetic field compared to the case where the TE010 mode resonator is used. Since the frequency sensitivity to the size is low, it is not necessary to form a cavity using a conductive cover. As a result, the height of the entire resonator device can be reduced, and the structure (package structure) of the resonator device can be simplified, thereby improving mass productivity and reducing manufacturing costs. Can be.
- the connection between the resonator electrode 23B and the land 19 is performed using a conductive paste.
- bonding with high positional accuracy that makes it difficult to displace the dielectric resonator chip 21 becomes possible.
- the resonance characteristics of the TM010 mode resonator 23 tend to vary due to the inductor component of the ribbon or the like.
- the connection is made by using the bump 26, even if the height dimension of the bump 26 fluctuates in the range of, for example, 30-50 / im, the characteristics such as the resonance frequency become almost constant. Can be held. For this reason, it is possible to reduce the variation in characteristics due to the mounting of the dielectric resonator chip 21, and to enhance the mass productivity of the resonator device.
- the oscillation circuit board 1 is provided with a frequency control circuit section 15 for controlling an oscillation frequency (resonance frequency), and the frequency control circuit section 15 and the TM010 mode resonator 23 are mounted on the dielectric board 22. Since the connection is made through the other excitation electrodes 25 provided, when the reaction type resonance circuit is configured using the TM010 mode resonator 23 as in the present embodiment, the case where the TE010 mode resonator is used is used. As a result, the degradation of the no-load Q (Qo) can be reduced. Therefore, since the reflection loss due to the TM010 mode resonator 23 is small, a high oscillation output can be expected.
- the frequency control circuit unit 15 is used. It is possible to construct a voltage-controlled oscillator capable of wideband modulation.
- the resonator electrodes 23 A, 23B and the excitation electrodes 24 and 25 are provided apart from each other, and they are connected to each other via a gap.
- the present invention is not limited to this.
- no gap is formed between the resonator electrode 23B ′ and the excitation electrodes 24 ′ and 25 ′ as in a first modification shown in FIGS. 13 and 14. It may be configured to be directly connected to.
- a circular hole is provided in a portion of the oscillation circuit board facing the resonator electrode 23B '.
- the resonator electrode 23A ' is connected to the ground using a ribbon, a wire, a through hole, or the like.
- the microstrip lines 5 and 16 are used as transmission lines provided in the oscillation circuit board 1.
- the present invention is not limited to this.
- a configuration using a grounded coplanar line in which a ground electrode is formed on the back surface of the oscillation circuit board 1 may be used.
- the resonator electrodes 23A and 23B of the TM010 mode resonator 23 are both formed in a circular shape, but it is sufficient if at least one of them is circular. Things. For this reason, for example, as in the second modification shown in FIGS. 15 and 16, a circular resonator electrode 31A is provided on the surface of the dielectric substrate 22, but substantially the entire surface is provided on the back surface of the dielectric substrate 22.
- the TM010 mode resonator 31 may be configured by providing the covering resonator electrode 31B.
- a band-shaped notch 32 is provided in the resonator electrode 31 B, and the notch 32 is formed in the notch 32.
- the excitation electrode 33 connected to a signal line such as a coplanar line is formed, and the resonator electrode 31B is connected to the ground.
- the resonator electrode 31B provided on the back surface of the dielectric substrate 22 can be connected to the ground electrode such as a coplanar line provided on the surface of the oscillation circuit substrate. There is no need to provide a cavity space on the back side of 22.
- FIG. 17 shows a second embodiment of the present invention, which is characterized in that a communication device as a transmission / reception device is configured using an oscillator device.
- Reference numeral 41 denotes a communication device according to the present embodiment.
- the communication device 41 includes, for example, a signal processing circuit 42, and a high-frequency module 43 connected to the signal processing circuit 42 to output or input a high-frequency signal. And an antenna 45 connected to the high-frequency module 43 for transmitting or receiving a high-frequency signal via an antenna duplexer 44 (duplexer).
- the high-frequency module 43 is transmitted by a band-pass filter 46, an amplifier 47, a mixer 48, a band-pass filter 49, and a power amplifier 50 connected between the output side of the signal processing circuit 42 and the antenna duplexer 44.
- a reception side is constituted by a band-pass filter 51, a low-noise amplifier 52, a mixer 53, a band-pass filter 54, and an amplifier 55 connected to the input side of the antenna duplexer 44 and the signal processing circuit 42.
- An oscillator device 56 configured as in the first embodiment is connected to the mixers 48 and 53, for example.
- the communication device has the above-described configuration, and its operation will be described next.
- an intermediate frequency signal (IF signal) output from the signal processing circuit 42 is removed by a band-pass filter 46, then amplified by an amplifier 47 and input to a mixer 48. Is done.
- the mixer 48 multiplies the intermediate frequency signal by the carrier wave from the oscillator device 56 to up-convert it to a high frequency signal (RF signal).
- the high-frequency signal output from the mixer 48 is subjected to bandpass filter 49 to remove unnecessary signals, amplified by the power amplifier 50 to transmission power, and then transmitted to the antenna 45 through the antenna duplexer 44. Sent from
- the high-frequency signal received from the antenna 45 is input to the band-pass filter 51 via the antenna sharing device 44.
- the high-frequency signal is amplified by the low-noise amplifier 52 and input to the mixer 53 after the unnecessary signal is removed by the band-pass filter 51.
- the mixer 53 multiplies the high-frequency signal by the carrier wave from the oscillator device 56 to down-convert to an intermediate frequency signal.
- the applied intermediate frequency signal is filtered by a band-pass filter 54 to remove unnecessary signals, and the amplified
- the signal After being amplified by 5, the signal is input to the signal processing circuit 42.
- the communication device can be configured using oscillator device 56 capable of high-output and wideband modulation, a communication device that can be used over a wide band is configured.
- the oscillator device 56 which is small and has excellent mass productivity is used, the size of the communication device can be reduced, and the manufacturing cost can be reduced.
- the case where the oscillator device 56 according to the present invention is applied to the communication device 41 has been described as an example.
- the oscillator device 56 may be applied to, for example, a radar device.
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JP2005511348A JPWO2005004322A1 (ja) | 2003-07-02 | 2004-07-01 | 発振器装置および送受信装置 |
US10/562,569 US20070057738A1 (en) | 2003-07-02 | 2004-07-01 | Oscillator device and transmission and reception device |
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JP2003-190488 | 2003-07-02 | ||
JP2003190488 | 2003-07-02 |
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Cited By (2)
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JPWO2006134817A1 (ja) * | 2005-06-14 | 2009-01-08 | 株式会社村田製作所 | 誘電体共振器、電圧制御発振器、および無線装置 |
WO2016125417A1 (ja) * | 2015-02-06 | 2016-08-11 | 株式会社ヨコオ | 高周波発振器 |
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JP2008312112A (ja) * | 2007-06-18 | 2008-12-25 | Hitachi Ltd | 誘電体共振器型発振器及びそれを用いたレーダシステム |
CN115036659B (zh) * | 2022-06-24 | 2023-07-14 | 南通先进通信技术研究院有限公司 | 一种基片集成的易馈电圆柱形介质谐振器滤波器 |
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JPH0232213U (ja) * | 1988-08-25 | 1990-02-28 | ||
JPH0392808U (ja) * | 1990-01-05 | 1991-09-20 | ||
JPH11214908A (ja) * | 1998-01-28 | 1999-08-06 | Murata Mfg Co Ltd | 誘電体共振器および誘電体共振器装置 |
JPH11234009A (ja) * | 1998-02-16 | 1999-08-27 | Murata Mfg Co Ltd | 発振器装置 |
JP2002124829A (ja) * | 2000-10-12 | 2002-04-26 | Murata Mfg Co Ltd | 発振器およびそれを用いた電子装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US4553097A (en) * | 1982-09-30 | 1985-11-12 | Schlumberger Technology Corporation | Well logging apparatus and method using transverse magnetic mode |
JPH11239021A (ja) * | 1998-02-24 | 1999-08-31 | Murata Mfg Co Ltd | 誘電体共振器装置 |
JP3468093B2 (ja) * | 1998-04-23 | 2003-11-17 | 株式会社村田製作所 | 誘電体フィルタ、共用器および電子機器 |
JPH11340738A (ja) * | 1998-05-22 | 1999-12-10 | Murata Mfg Co Ltd | 発振器および通信機装置 |
JP2000151228A (ja) * | 1998-11-09 | 2000-05-30 | Murata Mfg Co Ltd | 共振器装置、発振器、フィルタ、デュプレクサ、通信機装置 |
-
2004
- 2004-07-01 US US10/562,569 patent/US20070057738A1/en not_active Abandoned
- 2004-07-01 JP JP2005511348A patent/JPWO2005004322A1/ja active Pending
- 2004-07-01 WO PCT/JP2004/009319 patent/WO2005004322A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0232213U (ja) * | 1988-08-25 | 1990-02-28 | ||
JPH0392808U (ja) * | 1990-01-05 | 1991-09-20 | ||
JPH11214908A (ja) * | 1998-01-28 | 1999-08-06 | Murata Mfg Co Ltd | 誘電体共振器および誘電体共振器装置 |
JPH11234009A (ja) * | 1998-02-16 | 1999-08-27 | Murata Mfg Co Ltd | 発振器装置 |
JP2002124829A (ja) * | 2000-10-12 | 2002-04-26 | Murata Mfg Co Ltd | 発振器およびそれを用いた電子装置 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2006134817A1 (ja) * | 2005-06-14 | 2009-01-08 | 株式会社村田製作所 | 誘電体共振器、電圧制御発振器、および無線装置 |
JP4535127B2 (ja) * | 2005-06-14 | 2010-09-01 | 株式会社村田製作所 | 電圧制御発振器および無線装置 |
WO2016125417A1 (ja) * | 2015-02-06 | 2016-08-11 | 株式会社ヨコオ | 高周波発振器 |
JP2016146550A (ja) * | 2015-02-06 | 2016-08-12 | 株式会社ヨコオ | 高周波発振器 |
Also Published As
Publication number | Publication date |
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US20070057738A1 (en) | 2007-03-15 |
JPWO2005004322A1 (ja) | 2007-09-20 |
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