WO2005072069A2 - 矩形導波管型導波路 - Google Patents
矩形導波管型導波路 Download PDFInfo
- Publication number
- WO2005072069A2 WO2005072069A2 PCT/JP2005/000898 JP2005000898W WO2005072069A2 WO 2005072069 A2 WO2005072069 A2 WO 2005072069A2 JP 2005000898 W JP2005000898 W JP 2005000898W WO 2005072069 A2 WO2005072069 A2 WO 2005072069A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ground electrodes
- sub
- waveguide
- main ground
- main
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/12—Hollow waveguides
- H01P3/121—Hollow waveguides integrated in a substrate
Definitions
- the description in the same gazette states that the portions corresponding to the H-plane and the E-plane of the dielectric waveguide are formed by the main conductor layer and the through conductor group for the side wall, respectively. From the description that "the portions corresponding to the E-plane and H-plane of the dielectric waveguide are formed by the main conductor layer and the through-hole conductor group for the side wall," respectively, it is considered that the target is the electromagnetic wave of the TE mode.
- this rectangular waveguide type waveguide is different from a conventional rectangular waveguide type waveguide which essentially requires two rows of side wall through conductor groups formed by electrically connecting a pair of main conductor layers.
- a waveguide type waveguide for the TM mode can be configured with a simpler configuration.
- a waveguide type waveguide can be manufactured at low cost.
- waveguide rectangular waveguide type waveguide (hereinafter, also referred to as “waveguide”) according to the present invention will be described with reference to the drawings.
- the waveguide 1 includes a pair of main ground electrodes 2a and 2b (hereinafter, also referred to as “main ground electrode 2” unless otherwise distinguished) and a pair of side walls 3a and 3b. (Hereinafter referred to as “side wall 3” unless otherwise distinguished), and a dielectric block 4, and a rectangular cross section surrounded by each main ground electrode 2 and each side wall 3 of the dielectric block 4.
- the TM mode electromagnetic wave is configured to be able to propagate in the region 5 formed in FIG.
- each main ground electrode 2 is formed in a rectangular flat plate shape, and is parallel to each other with a dielectric block (dielectric in the present invention) 4 interposed therebetween. It is arranged facing.
- Each side wall 3 is formed by a plurality of sub-ground electrodes 11 which are disposed below the dielectric block 4 and are formed in a rectangular plate shape in FIG. It is configured. More specifically, each side wall 3 has a direction perpendicular to the main ground electrode 2 between the pair of main ground electrodes 2a and 2b.
- a plurality of sub-ground electrodes 11 are provided in the dielectric block 4 at predetermined intervals a along the Y direction (in the figure) and parallel to the main ground electrode 2 (five in the figure as an example).
- each sub-ground electrode 11 on the side walls 3 are arranged so as to overlap each other when viewed from the Y direction. Further, the side walls 3 are arranged in two rows in parallel with each other along the propagation direction of the electromagnetic wave (the Z direction in the figure). Further, as shown in FIG. 2, for example, each sub-ground electrode 11 is electrically connected to the main ground electrode 2 by a through conductor 12 disposed so as to bridge between the pair of main ground electrodes 2a and 2b. It is connected to the.
- the through conductor 12 does not confine the electromagnetic wave propagating in the region 5 in the region 5, and maintains each sub-ground electrode 11 on each side wall 3 at the same potential (ground potential) as the main ground electrode 2.
- the number of through conductors 12 be about several.
- the magnetic field H of the TM mode electromagnetic wave propagating in the Z direction is generated in a plane parallel to the XY plane, as shown in FIG. Therefore, when the magnetic field H reaches the formation region of each side wall 3, it intersects with each sub-ground electrode 11 forming each side wall 3. Therefore, the entry of the magnetic field H between the sub-ground electrodes 11 and 11 and between the sub-ground electrode 11 and the main ground electrode 2 is regulated by the respective sub-ground electrodes 11, so that each side wall 3 is in the TM mode. Acts as an electrical barrier to electromagnetic waves. That is, each side wall 3 has a function of confining the TM mode electromagnetic wave in the region 5 in cooperation with each main ground electrode 2. In FIGS. 1 and 2, the thicknesses of the main ground electrode 2 and the sub-ground electrode 11 are omitted for easy understanding of the description. In FIG. 2, the electric field of the electromagnetic wave in the TM mode is indicated by reference character E for reference.
- each sub-ground electrode 11 is defined to be not less than the length L
- the frequency of the propagating electromagnetic wave is f
- the relative permittivity of the dielectric block 4 is ⁇ .
- each radio wave absorber layer 14 is formed outside the side walls 3a, 3b so as to sandwich the pair of side walls 3 and the dielectric block 4 therebetween. ing. In this case, each radio wave absorber layer 14 is formed such that each edge in the Y direction is in contact with each edge in the X direction of each main ground electrode 2a, 2b.
- each radio wave absorber layer 14 is formed so as to be bridged between the main ground electrodes 2a and 2b.
- the radio wave absorber layer 14 has a function of absorbing electromagnetic wave energy (radio waves).
- one or more types of materials such as conductive loss material, magnetic loss material, and dielectric loss material are used. It is formed as a material.
- the conductive loss material for example, carbon is used as a main material.
- the magnetic loss material for example, a force metal magnetic material in which an oxide magnetic material is used as a main material can be used.
- the dielectric loss material for example, barium titanate is used as a main material.
- the material of the radio wave absorber layer 14 is not limited to this, and any material that will be developed in the future as well as the currently existing material can be appropriately used.
- the TM mode electromagnetic wave input into the region 5 surrounded by the pair of main ground electrodes 2a and 2b and the pair of side walls 3a and 3b is applied to the Y direction by each main ground electrode 2.
- the propagation in the X direction is regulated by each side wall 3. Therefore, the electromagnetic wave is reflected in each main ground electrode 2 and each side wall 3 while being reflected in the region 5.
- a TE mode electromagnetic wave may be generated in the region 5.
- an H plane is formed on a plane (X—Z plane) parallel to the main ground electrode 2, and a magnetic field is generated in the H plane.
- the magnetic field of the TE mode electromagnetic wave reaches the formation region of each side wall 3, it may enter the region outside each sub-ground electrode 11 without crossing each sub-ground electrode 11. .
- the magnetic field of the TE mode electromagnetic wave that has entered the outer region is caused by the resistance layer 13 formed in the outer region on both surfaces of each sub-ground electrode 11 and the respective opposing regions facing the outer region.
- a plurality of sub-ground electrodes 11 are arranged at predetermined intervals a between each main ground electrode 2a and 2b in a state parallel to the main ground electrode 2.
- the magnetic field is generated only in the direction orthogonal to the propagation direction (Z direction). This can be realized with only a plurality of sub-ground electrodes 11. This eliminates the need for a side wall through conductor group composed of a large number of side wall through conductors required in the conventional rectangular waveguide type waveguide.
- the wave path can be easily configured. Therefore, the waveguide 1 can be manufactured at low cost.
- each sub-ground electrode 11 with a lateral width that satisfies the above equation (1) and arranging each sub-ground electrode 11 at a predetermined interval a that satisfies the equation (1), the TM mode of each side wall 3
- the shielding performance against electromagnetic waves can be further improved.
- the present invention is not limited to the above-described configuration.
- a configuration is adopted in which each sub-ground electrode 11 and the main ground electrode 2 are electrically connected using the through conductor 12, but the present invention is not limited to this.
- a configuration in which each end surface side of each sub-ground electrode 11 and each main ground electrode 2 is electrically connected by a wiring pattern or a connecting conductor may be adopted. According to this configuration, it is not necessary to form the through conductors 12 in the dielectric block 4, so that the structure can be further simplified. Further, the waveguide 1 can be formed using a multilayer substrate.
- a main ground electrode 2 is formed on both surfaces (the uppermost surface and the lowermost surface) of the seven-layer multi-layer substrate, respectively.
- Each sub-ground electrode 11 constituting the side wall 3 is formed on each inner layer.
- the through conductor 12 is constituted by a through hole.
- the waveguide 1 is formed by the multilayer substrate.
- a resonator filter can be configured using the above waveguide 1.
Landscapes
- Waveguides (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Non-Reversible Transmitting Devices (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/588,161 US7495533B2 (en) | 2004-02-02 | 2005-01-25 | Waveguide of rectangular waveguide tube type having sub ground electrodes |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004024941A JP2005217996A (ja) | 2004-02-02 | 2004-02-02 | 矩形導波管型導波路 |
| JP2004-024941 | 2004-02-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2005072069A2 true WO2005072069A2 (ja) | 2005-08-11 |
| WO2005072069A3 WO2005072069A3 (ja) | 2005-10-06 |
Family
ID=34823972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/000898 Ceased WO2005072069A2 (ja) | 2004-02-02 | 2005-01-25 | 矩形導波管型導波路 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US7495533B2 (ja) |
| JP (1) | JP2005217996A (ja) |
| WO (1) | WO2005072069A2 (ja) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6633116B2 (ja) * | 2018-03-28 | 2020-01-22 | 株式会社フジクラ | バンドパスフィルタ |
| JP7801164B2 (ja) * | 2022-03-30 | 2026-01-16 | 京セラ株式会社 | 印刷配線板 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3732511A (en) * | 1972-03-15 | 1973-05-08 | Bell Telephone Labor Inc | Waveguide mode filter |
| US4029113A (en) * | 1975-02-20 | 1977-06-14 | William Cecil Guyton | Waxed dental textile material and method of preparing and using the same |
| US4911927A (en) * | 1988-11-14 | 1990-03-27 | Hill Ira D | Method and apparatus for adding chemotherapeutic agents to dental floss |
| JPH0653711A (ja) | 1992-07-28 | 1994-02-25 | Fukushima Nippon Denki Kk | 導波管線路 |
| JPH07202507A (ja) * | 1993-12-28 | 1995-08-04 | Nec Corp | マイクロストリップラインフィルタ |
| US5986527A (en) * | 1995-03-28 | 1999-11-16 | Murata Manufacturing Co., Ltd. | Planar dielectric line and integrated circuit using the same line |
| US5680876A (en) * | 1995-06-01 | 1997-10-28 | Gillette Canada Inc. | Floss brush manufacture and product |
| JP3686736B2 (ja) | 1996-08-30 | 2005-08-24 | 京セラ株式会社 | 誘電体導波管線路および配線基板 |
| JP3366552B2 (ja) * | 1997-04-22 | 2003-01-14 | 京セラ株式会社 | 誘電体導波管線路およびそれを具備する多層配線基板 |
| JPH10303609A (ja) * | 1997-04-24 | 1998-11-13 | Kyocera Corp | 誘電体線路 |
| AU753587B2 (en) * | 1997-11-14 | 2002-10-24 | Johnson & Johnson Consumer Companies, Inc. | Highly flavored dental floss |
| JPH11284409A (ja) | 1998-03-27 | 1999-10-15 | Kyocera Corp | 導波管型帯域通過フィルタ |
| FI113581B (fi) * | 1999-07-09 | 2004-05-14 | Nokia Corp | Menetelmä aaltojohdon toteuttamiseksi monikerroskeramiikkarakenteissa ja aaltojohto |
| JP2001196502A (ja) * | 2000-01-11 | 2001-07-19 | Mitsubishi Electric Corp | 半導体パッケージ |
| US6544457B1 (en) * | 2000-02-17 | 2003-04-08 | Placontrol, Inc. | High speed injection molding apparatus and method for dental floss holder |
-
2004
- 2004-02-02 JP JP2004024941A patent/JP2005217996A/ja active Pending
-
2005
- 2005-01-25 WO PCT/JP2005/000898 patent/WO2005072069A2/ja not_active Ceased
- 2005-01-25 US US10/588,161 patent/US7495533B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005072069A3 (ja) | 2005-10-06 |
| US7495533B2 (en) | 2009-02-24 |
| US20070159277A1 (en) | 2007-07-12 |
| JP2005217996A (ja) | 2005-08-11 |
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