WO2005078854A1 - 高周波モジュール - Google Patents
高周波モジュール Download PDFInfo
- Publication number
- WO2005078854A1 WO2005078854A1 PCT/JP2005/000843 JP2005000843W WO2005078854A1 WO 2005078854 A1 WO2005078854 A1 WO 2005078854A1 JP 2005000843 W JP2005000843 W JP 2005000843W WO 2005078854 A1 WO2005078854 A1 WO 2005078854A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frequency module
- waveguide
- electromagnetic wave
- tem mode
- magnetic field
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
- H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
- H01P5/184—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers the guides being strip lines or microstrips
- H01P5/185—Edge coupled lines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/02—Containers; Seals
- H01L23/04—Containers; Seals characterised by the shape of the container or parts, e.g. caps, walls
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/552—Protection against radiation, e.g. light or electromagnetic waves
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/58—Structural electrical arrangements for semiconductor devices not otherwise provided for, e.g. in combination with batteries
- H01L23/64—Impedance arrangements
- H01L23/66—High-frequency adaptations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
- H01P1/2082—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure with multimode resonators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
- H01P1/2088—Integrated in a substrate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/161—Cap
- H01L2924/1615—Shape
- H01L2924/16152—Cap comprising a cavity for hosting the device, e.g. U-shaped cap
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/161—Cap
- H01L2924/1615—Shape
- H01L2924/16152—Cap comprising a cavity for hosting the device, e.g. U-shaped cap
- H01L2924/1616—Cavity shape
Definitions
- the present invention relates to a high-frequency module for electromagnetic waves (high-frequency signals) such as microwaves and millimeter waves.
- a high-frequency module (waveguide-type filter) disclosed in Japanese Patent Application Laid-Open No. 2003-273605 is known as a high-frequency module using this type of high-frequency module component.
- This waveguide filter includes a housing 20 and a substrate 9 as components for a high-frequency module.
- the housing 20 is formed as a metal box having a lower surface opened and a plurality of partitions 23 disposed therein.
- the substrate 9 includes a ground electrode 8 formed to have an area covering an opening on the lower surface of the housing 20, and a signal transmission path 60 connected to one side of the ground electrode 8. Are formed on the surface.
- the waveguide type filter is configured such that a housing 20 is mounted on a portion of the substrate 9 where the ground electrode 8 is formed.
- a cavity resonator is formed between the inner surface of the housing 20 and the ground electrode 8, and the signal (TEM mode electromagnetic wave) transmitted through the signal transmission path 60 is transmitted through the signal transmission path.
- the magnetic field is coupled to the TE mode electromagnetic wave in the cavity resonator.
- the conventional high-frequency module described above has the following problems. That is, in this high-frequency module, since the signal transmission path 60 and the ground electrode 8 are joined to the surface of the substrate 9 by bonding, the TEM mode electromagnetic wave generated around the signal transmission path 60 at the joint between the two. Is passed through the space above the signal transmission path 60 and the inside of the substrate 9 below the signal transmission path 60. For this reason, the magnetic field density of the electromagnetic wave passing through the inside of the substrate 9 having a large relative permittivity is strong, and the magnetic field density of the electromagnetic wave passing through the space having a small relative permittivity is weak. The bias of the magnetic field density between the inside and the outside becomes large.
- this high-frequency module has a problem that insertion loss is large due to low efficiency in converting TEM mode electromagnetic wave power to TE mode electromagnetic wave.
- the input section is used as an output section of a high-frequency module, the conversion efficiency when converting the electromagnetic wave of the TE mode to the electromagnetic wave of the TEM mode is low, and thus there is a problem that the input loss is similarly large. .
- the present invention has been made to solve a powerful problem, and has as its main object to provide a high-frequency module with small insertion loss.
- the TEM mode line is formed on the other surface or inner layer, and the substrate is formed with a through conductor that short-circuits the TEM mode line near the H-plane coupling window of the ground electrode. Te, ru.
- an H-plane coupling window is formed at the center in the width direction of the concave portion for the waveguide waveguide, and the TEM mode line and the ground electrode near the center of the edge of the H-plane coupling window. It is preferable to form a through conductor so as to short-circuit.
- a high-frequency module component by being formed by resin molding, and coating the entire surface of at least one surface with a conductive material.
- the H-plane coupling window that opens in the waveguide formed between the ground electrode of the substrate and the surface of the recess for the waveguide is formed.
- the magnetic field of the electromagnetic wave generated around the penetrating conductor passes through a member having the same dielectric constant, so that the bias of the magnetic field density is reduced.
- the TEM mode The magnetic wave and the electromagnetic wave in the waveguide are magnetically coupled through the H-plane coupling window. Therefore, the mode is efficiently converted between the TE mode electromagnetic wave and the TEM mode electromagnetic wave. As a result, the insertion loss of the high-frequency module can be reduced.
- the H-plane coupling window is formed at the center in the width direction of the waveguide-type waveguide recess, and the H-plane coupling between the TEM mode line and the ground electrode is formed.
- the TE mode generated in the waveguide surrounded by the recess for the waveguide and the ground electrode is reduced. It can be magnetically coupled with the TEM mode electromagnetic wave at the location where the magnetic field strength of the electromagnetic wave is maximum.
- the electromagnetic wave of the TEM mode and the electromagnetic wave of the TE mode are preferably magnetically coupled, and the mode conversion between the electromagnetic wave of the TE mode and the electromagnetic wave of the TEM mode is more efficiently performed. As a result, the input loss of the high-frequency module is reduced. It can be further reduced.
- the high-frequency module of the present invention by using a high-frequency module component formed by resin molding and coated on at least one entire surface thereof with a conductive material, the high-frequency module is cut out from a metal plate. Compared to a configuration using expensive high-frequency module parts manufactured by the above method, it can be manufactured simply and inexpensively, and the force for reducing the weight can be greatly reduced.
- FIG. 1 is a perspective view showing a configuration of a high-frequency module according to one embodiment of the present invention.
- FIG. 2 is a perspective view of the high-frequency module component in FIG. 1 as viewed from the back side.
- FIG. 3 is an exploded perspective view showing a configuration of a high-frequency module component and a substrate.
- FIG. 4 is a sectional view taken along line W—W in FIG. 1.
- FIG. 5 is an explanatory diagram for explaining an operation of the high-frequency module in FIG. 1.
- the high-frequency module 1 includes a high-frequency module component 2 and a substrate 3, and functions as a bandpass filter.
- the high-frequency module component 2 includes a module component main body 4 and a pair of partition walls 7 and 7, as shown in FIG.
- the module component main body 4 has an outer shape formed in a rectangular parallelepiped shape, and has one surface (the upper surface in the figure, which is also one surface of the high-frequency module component 2) 4a side.
- a recess for a waveguide-type waveguide hereinafter also referred to as a “recess for a waveguide”
- a recess for a waveguide-type waveguide hereinafter also referred to as a “recess for a waveguide”
- the pair of partition walls 7, 7 are in contact with a pair of inner walls parallel to the longitudinal direction of the module component main body 4 in the waveguide recess 8, respectively, and are located on the inner surface 8 a of the waveguide recess 8. It is erected at an intermediate position in each direction.
- the high-frequency module component 2 having the above-described configuration is configured such that the module component main body 4 and the partition walls 7 and 7 are integrally formed by resin molding.
- the high-frequency module component 2 is coated with a conductive material over the entire surface on one side. That is, the entire surface of the waveguide recess 8 including the inner surface 8a, the entire surface of each of the partition walls 7 and 7, and one surface 4a are coated with a conductive material.
- the high-frequency module component 2 can also be manufactured by cutting out a metal plate such as aluminum.However, as described above, it can be manufactured easily and inexpensively, and the force and the weight can be significantly reduced. It is preferable to manufacture by resin molding.
- the substrate 3 is formed in a rectangular shape in plan view using, for example, a glass epoxy resin material.
- a ground electrode 11 is formed on one surface (the upper surface in FIG. 3).
- a pair of TEM mode lines 12 and 13 are formed on the other surface (the lower surface in the figure), respectively.
- the ground electrode 11 is formed over the entire surface of the substrate 3.
- the force is not limited to this, but at least the entire surface 4 a of the module component body 4 and the entire TEM mode line It is sufficient to define the area that includes the parts facing 12 and 13.
- the ground electrode 11 has, for example, a rectangular H-plane coupling window 14, 15 force substrate 3 Are formed so as to be located on both ends 3a and 3b sides in the longitudinal direction and to be parallel to the respective end faces 3a and 3b (that is, parallel to each other).
- the H-plane coupling windows 14 and 15 are positioned (opened) near both ends in the longitudinal direction in the waveguide recess 8 when the high-frequency module component 2 is mounted on the substrate 3.
- the intervals are defined, and the positions thereof are defined so as to be arranged at the center in the width direction (the direction B in the drawing) of the force and the waveguide recess 8 respectively.
- each conductor TH transmits the magnetic field HI (see FIG. 5) of the TEM mode electromagnetic wave passing through the through conductors 16 and 17 described below inside the substrate 3 located below the H-plane coupling windows 14 and 15.
- the TEM mode electromagnetic wave and the TE mode electromagnetic wave propagating in the waveguide recess 8 are magnetically coupled in a favorable state through the H-plane coupling windows 14 and 15.
- the through holes TH and TH function as pseudo conductor walls, and prevent unnecessary diffusion of electromagnetic waves passing through the through conductors 16 and 17 in the direction of the substrate surface of the substrate 3 to prevent the above-described problem.
- the interval is set to a specified value or less (for example, 1/4 or less of the electromagnetic wave wavelength).
- a ground electrode electrically connected to the through hole TH may be formed on the back surface side of the substrate 3 (the surface on which the ground electrode 11 is not formed).
- Each of the TEM mode lines 12 and 13 is formed by extending linearly from both end surfaces 3a and 3b of the substrate 3 toward the corresponding H-plane coupling windows 14 and 15, respectively. It is composed of microstrip lines.
- the TEM mode line 12 has a leading end near the end face 3 a in the H-plane coupling window 14 of the ground electrode 11 through a through conductor (through hole or via hole) 16 formed inside the substrate 3. Short circuit near the center of the edge.
- the tip of the TEM mode line 13 is located near the end face 3 b of the ground electrode 11 at the H-plane coupling window 15 via a through conductor (through hole or via hole) 17 formed inside the substrate 3. Is short-circuited near the center of the edge.
- the high-frequency module 1 is configured by mounting the high-frequency module component 2 on the surface of the substrate 3 on which the ground electrode 11 is formed.
- the waveguide recess 8 of the high-frequency module component 2 is closed by the ground electrode 11. It is.
- the surface of the waveguide concave portion 8 coated with the conductive material and the region surrounded by the ground electrode 11 are formed as cavities, and the waveguide type waveguide A that transmits the TE mode electromagnetic wave is formed.
- Function as The H-plane coupling windows 14 and 15 described above are formed so as to be located at both ends of the waveguide A in the longitudinal direction of the substrate 3.
- the waveguide A has two regions defined by a pair of partition walls 7, 7, and a TEM mode line 12 of the two regions.
- the region on the side constitutes a cavity-type resonator 21, and the region on the TEM mode line 13 side constitutes a cavity-type resonator 22.
- the TEM mode electromagnetic wave W 1 input to the TEM mode line 12 reaches the through conductor 16 via the TEM mode line 12, and then passes through the TEM mode line 12. Pass through.
- an annular magnetic field HI is generated around the through conductor 16.
- the direction of the magnetic field HI on the E plane of the resonator 21 and the direction of the magnetic field H2 of the electromagnetic wave generated in the resonator 21 match. Therefore, the electromagnetic wave W1 in the TEM mode and the electromagnetic wave (magnetic field H2) in the resonator 21 are magnetically coupled via the H-plane coupling window 14.
- the magnetic field HI passes through the inside of the substrate 3 as a dielectric. Therefore, the magnetic field HI of the electromagnetic wave W1 generated around the penetrating conductor 16 passes through a member having the same dielectric constant, so that the bias of the magnetic field distribution is reduced. Therefore, the TEM mode electromagnetic wave W1 having a strong magnetic field density and the TE mode electromagnetic wave (magnetic field H2) propagating in the resonator (waveguide) 21 are magnetically coupled. Therefore, mode conversion is efficiently performed between the electromagnetic wave W1 in the TEM mode and the electromagnetic wave (magnetic field H2) in the TE mode. As a result, the insertion loss of the high-frequency module 1 is reduced.
- the H-plane coupling window 14 is arranged at the center in the width direction of the waveguide recess 8, and the through conductor 16 is located near the end face 3a of the H-plane coupling window 14 of the ground electrode 11. Because of the short-circuit near the center of the edge, the TEM mode electromagnetic wave W1 (magnetic field HI) is transmitted to the TE mode electromagnetic wave (magnetic field H2) at the location where the magnetic field strength of the TE mode electromagnetic wave (magnetic field H2) is maximized. And magnetic field coupling. Therefore, the electromagnetic wave W1 (magnetic field HI) in the TEM mode is in good condition with the electromagnetic wave (magnetic field H2) in the resonator 21. Magnetic field coupling. In other words, the TEM mode electromagnetic wave W1 (magnetic field HI) is efficiently converted to the TE mode electromagnetic wave (magnetic field H2).
- the electromagnetic wave (magnetic field H 2) in the resonator 21 is coupled to the electromagnetic wave (magnetic field H 3) in the resonator 22 using the gap formed between the pair of partition walls 7 and 7 as an E-plane coupling window.
- the direction of the magnetic field H4 of the TEM mode electromagnetic wave W2 generated in the through conductor 17 is as shown in FIG.
- the direction of the magnetic field H3 of the electromagnetic wave matches the direction of the magnetic field H4 of the electromagnetic wave W2 in the TEM mode. Therefore, the electromagnetic wave (magnetic field H3) in the resonator 22 and the electromagnetic wave W2 in the TEM mode are magnetically coupled.
- the magnetic field H4 passes through the inside of the substrate 3 as a dielectric. Therefore, the magnetic field H4 of the electromagnetic wave W2 generated around the through conductor 17 passes through a member having the same dielectric constant, so that the bias of the magnetic field density is reduced. Therefore, the electromagnetic wave of the TE mode (magnetic field H3) propagating in the resonator (waveguide type waveguide) 22 and the electromagnetic wave W2 of the TEM mode are magnetically coupled well. Therefore, the mode is efficiently converted between the TE mode electromagnetic wave (magnetic field H2) and the TEM mode electromagnetic wave W2. As a result, the insertion loss of the high-frequency module 1 is reduced.
- the H-plane coupling window 15 is arranged at the center in the width direction of the waveguide recess 8, and the through conductor 17 is located at the center of the edge of the ground electrode 11 near the end face 3 b in the H-plane coupling window 15. Since the magnetic field strength of the TE mode electromagnetic wave (magnetic field H3) propagating in the resonator 22 is maximized due to the short circuit in the vicinity, the TE mode electromagnetic wave (magnetic field H3) and the TEM mode electromagnetic wave W2 (magnetic field H4 ) And magnetic field coupling. Therefore, the electromagnetic wave in the resonator 22 magnetically couples with the electromagnetic wave W2 in a favorable state.
- this high-frequency module 1 functions as a TEM mode input_ (TE mode conversion—TEM mode conversion 1) TEM mode output type filter.
- the H-plane coupling windows 14, 15 opened in the waveguide recess 8 are formed in the ground electrode 11, and the TEM mode lines 12, 13 are formed on the substrate 3.
- the TEM mode lines 12 and 13 are formed on the other surface, and the H-plane coupling windows 14 and 15 in the ground electrode 11 are formed.
- the TEM mode electromagnetic wave W1 and the TE mode electromagnetic wave can be satisfactorily magnetically coupled, and the TE mode electromagnetic wave (magnetic field H3) and the TEM mode electromagnetic wave W2 can be satisfactorily magnetically coupled. Can be done. Therefore, efficient mode conversion is performed between the TE mode electromagnetic waves (magnetic fields HI and H2) and the TEM mode electromagnetic waves Wl and W2. As a result, it is possible to configure the high-frequency module 1 with extremely small input loss.
- H-plane coupling windows 14 and 15 are formed in the center of the waveguide recess 8 in the width direction (width direction of each resonator 21 and 22), and the TEM mode lines 12 and 13 and the ground electrode 11 are formed. Since the through conductors 16 and 17 are formed so as to short-circuit the vicinity of the center of the edges of the H-plane coupling windows 14 and 15, these are generated in the waveguide A (the resonators 21 and 22).
- the TE mode electromagnetic waves and the TEM mode electromagnetic waves Wl, W2 are magnetically coupled at the location where the magnetic field strength of the TE mode electromagnetic waves (magnetic fields H2, H3) is maximized. Can be.
- the magnetic field coupling between the electromagnetic waves Wl, W2 in the TEM mode (magnetic fields HI, H4) and the electromagnetic waves in the TE mode (magnetic fields H2, H3) can be more excellently magnetically coupled, and the insertion loss of the high-frequency module 1 can be further reduced. Can be reduced.
- the present invention is not limited to the configuration described above.
- the number of the above-described force resonators in the high-frequency module 1 in which the two resonators 21 and 22 are formed in the waveguide recess 8 is not limited to two. You may.
- the high-frequency module 1 may be configured as a simple waveguide type waveguide without providing the force resonator described in the example in which the high-frequency module 1 is configured as a band-pass filter.
- the TEM mode lines 12 and 13 can be formed of the above-described force coplanar line or strip line as in the example in which the TEM mode lines 12 and 13 are formed of microstrip lines.
- each TEM mode line 12, 13 is formed in an inner layer using a layer substrate.
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004019709A JP2005217601A (ja) | 2004-01-28 | 2004-01-28 | 高周波モジュール |
JP2004-019709 | 2004-01-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005078854A1 true WO2005078854A1 (ja) | 2005-08-25 |
Family
ID=34857599
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/000843 WO2005078854A1 (ja) | 2004-01-28 | 2005-01-24 | 高周波モジュール |
Country Status (2)
Country | Link |
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JP (1) | JP2005217601A (ja) |
WO (1) | WO2005078854A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024070959A1 (ja) * | 2022-09-30 | 2024-04-04 | 京セラ株式会社 | 配線基板、電子部品収納用パッケージ及び電子装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5275957A (en) * | 1975-12-20 | 1977-06-25 | Matsushita Electric Ind Co Ltd | Microwave oscillation unit |
JPH1141010A (ja) * | 1997-07-16 | 1999-02-12 | Nec Corp | ストリップ線路−導波管変換器 |
JP2000216605A (ja) * | 1999-01-21 | 2000-08-04 | Kyocera Corp | 誘電体導波管線路と高周波用線路導体との接続構造 |
JP2002111312A (ja) * | 2000-09-29 | 2002-04-12 | Hitachi Kokusai Electric Inc | 導波管フィルタ |
JP2003209411A (ja) * | 2001-10-30 | 2003-07-25 | Matsushita Electric Ind Co Ltd | 高周波モジュールおよび高周波モジュールの製造方法 |
JP2003347755A (ja) * | 2002-05-24 | 2003-12-05 | Fujitsu Ltd | 携帯電話機の筐体構造 |
-
2004
- 2004-01-28 JP JP2004019709A patent/JP2005217601A/ja not_active Withdrawn
-
2005
- 2005-01-24 WO PCT/JP2005/000843 patent/WO2005078854A1/ja active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5275957A (en) * | 1975-12-20 | 1977-06-25 | Matsushita Electric Ind Co Ltd | Microwave oscillation unit |
JPH1141010A (ja) * | 1997-07-16 | 1999-02-12 | Nec Corp | ストリップ線路−導波管変換器 |
JP2000216605A (ja) * | 1999-01-21 | 2000-08-04 | Kyocera Corp | 誘電体導波管線路と高周波用線路導体との接続構造 |
JP2002111312A (ja) * | 2000-09-29 | 2002-04-12 | Hitachi Kokusai Electric Inc | 導波管フィルタ |
JP2003209411A (ja) * | 2001-10-30 | 2003-07-25 | Matsushita Electric Ind Co Ltd | 高周波モジュールおよび高周波モジュールの製造方法 |
JP2003347755A (ja) * | 2002-05-24 | 2003-12-05 | Fujitsu Ltd | 携帯電話機の筐体構造 |
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JP2005217601A (ja) | 2005-08-11 |
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