JPH0812962B2 - Stripline resonator - Google Patents
Stripline resonatorInfo
- Publication number
- JPH0812962B2 JPH0812962B2 JP63012953A JP1295388A JPH0812962B2 JP H0812962 B2 JPH0812962 B2 JP H0812962B2 JP 63012953 A JP63012953 A JP 63012953A JP 1295388 A JP1295388 A JP 1295388A JP H0812962 B2 JPH0812962 B2 JP H0812962B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- dielectric substrate
- resonator
- strength
- superconductor
- 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.)
- Expired - Fee Related
Links
- 239000000758 substrate Substances 0.000 claims description 34
- 239000002887 superconductor Substances 0.000 claims description 23
- 239000004020 conductor Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Waveguides (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明はマイクロ波通信機に使用するストリップライ
ン共振器に関するものである。TECHNICAL FIELD The present invention relates to a stripline resonator used in a microwave communication device.
従来の技術 近年のマイクロ波通信機の高周波回路部には、誘電体
基板上にマイクロストリップラインを構成したMIC（マ
イクロ波IC）が一般的に用いられている。そして、この
MICにはストリップライン共振器がさまざまな形で使用
されている。2. Description of the Related Art A MIC (microwave IC) in which a microstrip line is formed on a dielectric substrate is generally used in a high frequency circuit section of a recent microwave communication device. And this
Stripline resonators are used in various forms in MIC.
以下図面を参照しながら従来例について説明する。第
２図（ａ），（ｂ）はそれぞれ従来のストリップライン
共振器を使用したフィルタの斜視図、及びその伝送特性
を示すものである。11は接地導体、12は誘電体基板、13
はストリップライン共振器、14,15は入出力のストリッ
プラインである。Hereinafter, a conventional example will be described with reference to the drawings. 2 (a) and 2 (b) are respectively a perspective view of a filter using a conventional stripline resonator and a transmission characteristic thereof. 11 is a ground conductor, 12 is a dielectric substrate, 13
Is a stripline resonator, and 14 and 15 are input / output striplines.
以上のように構成されたストリップライン共振器フィ
ルタの動作は、ストリップライン共振器13の幅と長さ、
及び誘電体基板12の厚さと比誘電率によって定まる中心
周波数foを有する第２図（ｂ）のような帯域通過フィル
タとなる。The stripline resonator filter configured as described above operates in the width and length of the stripline resonator 13,
And a band pass filter as shown in FIG. 2 (b) having a center frequency fo determined by the thickness and relative permittivity of the dielectric substrate 12.
発明が解決しようとする課題 しかしながら上記のような構成では、中心周波数がス
トリップライン共振器の幅と長さ、及び誘電体基板の厚
さと比誘電率によって１つのfoに定まり、可変すること
ができなかった。However, in the above-described configuration, the center frequency can be set and varied in one fo depending on the width and length of the stripline resonator and the thickness and relative permittivity of the dielectric substrate. There wasn't.
本発明は上記課題に鑑み、外部から直流磁界を加えこ
の強度を変化させることにより、中心周波数を可変する
ことができるというストリップライン共振器を提供する
ものである。In view of the above problems, the present invention provides a stripline resonator in which the center frequency can be varied by externally applying a DC magnetic field and changing the strength.
課題を解決するための手段 上記課題を解決するための本発明のストリップライン
共振器は、ｎ個（ｎは、２以上）の誘電体基板とｎ−１
個の超電導体膜を前記誘電体基板が端になるように交互
に重ね合わせ、最下段の誘電体基板の裏面には接地導体
を形成し、最上段の誘電体基板の表面にはマイクロスト
リップライン共振器を形成し、かつ前記超電導体膜が２
個以上の場合は、前記マイクロストリップライン共振器
に近い方の超電導体膜の臨界磁界強度が、前記接地導体
に近い方の超電導体膜の臨界磁界強度に比べて小さいも
ので形成し、かつ前記最上段の誘電体基板の上方から直
流磁界を加え、前記直流磁界の強度を前記超電導体膜の
臨界強度を包含する範囲で変化させるという構成を備え
たものである。Means for Solving the Problems A stripline resonator according to the present invention for solving the above problems includes n (n is 2 or more) dielectric substrates and n−1.
Alternately superimpose the superconducting films so that the dielectric substrate is the end, form a ground conductor on the back surface of the lowermost dielectric substrate, and microstrip line on the front surface of the uppermost dielectric substrate. A resonator is formed, and the superconducting film is 2
In the case of more than one, the critical magnetic field strength of the superconductor film closer to the microstrip line resonator is formed to be smaller than the critical magnetic field strength of the superconductor film closer to the ground conductor, and A DC magnetic field is applied from above the uppermost dielectric substrate to change the strength of the DC magnetic field within a range including the critical strength of the superconductor film.
作用 本発明は上記した構成によって、外部から加える直流
磁界の強度を変化させて順次強くすることにより、誘電
体基板にはさまれた超電導体膜を超電導状態から非超電
導状態にし、誘電体基板の厚さを等価的に変化させて、
ストリップライン共振器の中心周波数を変化させること
ができる。Action The present invention has the above-described configuration, by changing the strength of the DC magnetic field applied from the outside to sequentially strengthen the superconducting film sandwiched between the dielectric substrates from the superconducting state to the non-superconducting state, By changing the thickness equivalently,
The center frequency of the stripline resonator can be changed.
実施例 以下本発明の一実施例のストリップライン共振器フィ
ルタについて、図面を参照しながら説明する。Embodiment A stripline resonator filter according to an embodiment of the present invention will be described below with reference to the drawings.
第１図（ａ）は本発明の一実施例のストリップライン
共振器のフィルタの斜視図、同図（ｂ）はその伝送特性
図である。第１図において、１は接地導体、2,3,4は誘
電体基板5,6はセラミックスの超電導体膜でその臨界磁
界強度は６の方が小さいもの、７はマイクロストリップ
ライン共振器、8,9は入出力のマイクロストリップライ
ン、10は外部から加える直流磁界である。FIG. 1 (a) is a perspective view of a filter of a stripline resonator according to an embodiment of the present invention, and FIG. 1 (b) is its transmission characteristic diagram. In FIG. 1, 1 is a ground conductor, 2, 3 and 4 are dielectric substrates 5 and 6, superconductor films made of ceramics, whose critical magnetic field strength is 6 is smaller, 7 is a microstrip line resonator, and 8 Reference numerals 9 are input / output microstrip lines, and 10 is a DC magnetic field applied from the outside.
上記のように構成されたストリップライン共振器フィ
ルタについて、以下その動作を説明する。The operation of the stripline resonator filter configured as described above will be described below.
まず、直流磁界10は加えないときは、第１図（ａ）で
超電導体膜5,6はともに超電導状態であるからマイクロ
ストリップライン共振器７に対しては実効的な接地面が
超電導体膜６となり誘電体部の厚さは誘電体基板４の厚
さt1で、伝送特性は第１図（ｂ）のように中心の供振周
波数f1のフィルタとなる。First, when the DC magnetic field 10 is not applied, the superconducting films 5 and 6 are both in the superconducting state in FIG. 1 (a), so that the effective ground plane for the microstrip line resonator 7 is a superconducting film. 6, the thickness of the dielectric portion is the thickness t1 of the dielectric substrate 4, and the transmission characteristic is a filter having the central vibration frequency f1 as shown in FIG. 1 (b).
次に、直流磁界10を超電導体膜６の臨界磁界強度より
も大きく超電導体膜５のそれよりも小さい磁界強度で加
えると、超電導体膜６が非超電導状態となり、実効的な
接地導体は超電導体膜５となる。このとき、実効的な誘
電体基板の厚さは誘電体基板４と３の和のt2となり、上
記の直流磁界を加えない場合より誘電体基板３の分だけ
厚くなる。従って、ストリップライン共振器７の共振周
波数は上記の場合よりも低いf2となる。この様子を第１
図（ｂ）に示す。Next, when a DC magnetic field 10 is applied with a magnetic field strength larger than the critical magnetic field strength of the superconductor film 6 and smaller than that of the superconductor film 5, the superconductor film 6 is in a non-superconducting state, and the effective ground conductor is a superconducting conductor. It becomes the body membrane 5. At this time, the effective thickness of the dielectric substrate is t2, which is the sum of the dielectric substrates 4 and 3, and is thicker by the amount of the dielectric substrate 3 than when the DC magnetic field is not applied. Therefore, the resonance frequency of the stripline resonator 7 is f2 lower than that in the above case. This is the first
It is shown in FIG.
さらに、直流磁界10を超電導体膜５の臨界磁界強度よ
りも大きくした場合、超電導体膜６と５がともに非超電
導状態となり実効的な接地導体は接地導体１となる。こ
のとき、実効的な誘電体基板の厚さは誘電体基板4,3,及
び２の和のt3となり、前記の場合に比べてさらに厚くな
る。従って、ストリップライン共振器７の共振周波数は
前記の場合に比べてさらに低いf3となる。この様子を第
１図（ｂ）に示す。Further, when the DC magnetic field 10 is made larger than the critical magnetic field strength of the superconductor film 5, both the superconductor films 6 and 5 are in the non-superconducting state and the effective ground conductor is the ground conductor 1. At this time, the effective thickness of the dielectric substrate is t3, which is the sum of the dielectric substrates 4, 3, and 2, which is even thicker than in the above case. Therefore, the resonance frequency of the stripline resonator 7 is f3 which is lower than that in the above case. This is shown in FIG. 1 (b).
以上のように本実施例によれば、３枚の誘電体基板と
２枚の超電導体膜を交互に重ね合せ、最下段の誘電体基
板の裏面には接地導体を形成し、最上段の誘電体基板の
表面にはマイクロストリップライン共振器を形成し、か
つ前記マイクロストリップライン共振器に近い方の超電
導体膜の臨界磁界強度が、前記接地導体に近い方の超電
導体膜の臨界磁界強度に比べて小さいもので形成し、か
つ前記最上段の誘電体基板の上方から直流磁界を加え、
前記直流磁界の強度を前記超電導体膜の臨界強度を包含
する範囲で変化させることにより、ストリップライン共
振周波数を可変することができる。As described above, according to this embodiment, the three dielectric substrates and the two superconductor films are alternately laminated, and the ground conductor is formed on the back surface of the lowermost dielectric substrate, and the uppermost dielectric substrate is formed. A microstrip line resonator is formed on the surface of the body substrate, and the critical magnetic field strength of the superconductor film closer to the microstrip line resonator is equal to the critical magnetic field strength of the superconductor film closer to the ground conductor. It is formed of a smaller size, and a DC magnetic field is applied from above the uppermost dielectric substrate,
The stripline resonance frequency can be varied by changing the strength of the DC magnetic field within a range including the critical strength of the superconductor film.
なお、本実施例では、ストリップライン共振器を帯域
通過フィルタとして応用した例についてのべたが、これ
をストリップライン主伝送線路に並列に結合した帯域阻
止フィルタやトランジスタ発振器の共振器として利用し
ても、同様の効果が得られる。In the present embodiment, an example in which the stripline resonator is applied as a bandpass filter has been described, but it may be used as a bandstop filter or a resonator of a transistor oscillator coupled in parallel to the stripline main transmission line. , The same effect can be obtained.
発明の効果 以上のように本発明は、ｎ個（ｎは、２以上）の誘電
体基板とｎ−１個の超電導体膜を前記誘電体基板が端に
なるように交互に重ね合わせ、最下段の誘電体基板の裏
面には接地導体を形成し、最上段の誘電体基板の表面に
はマイクロストリップライン共振器を形成し、かつ前記
超電導体膜が２個以上の場合は、前記マイクロストリッ
プライン共振器に近い方の超電導体膜の臨界磁界強度
が、前記接地導体に近い方の超電導体膜の臨界磁界強度
に比べて小さいもので形成し、かつ前記最上段の誘電体
基板の上方から直流磁界を加えるという構成により、前
記直流磁界の強度を前記超電導体膜の臨界強度を包含す
る範囲で変化させることにより、誘電体基板の厚さを等
価的に変化させ、複数の共振周波数を有することができ
るという優れた効果を有する。EFFECTS OF THE INVENTION As described above, according to the present invention, n (n is 2 or more) dielectric substrates and n-1 superconductor films are alternately superposed so that the dielectric substrates are edges, and A ground conductor is formed on the back surface of the lower dielectric substrate, a microstrip line resonator is formed on the front surface of the uppermost dielectric substrate, and the microstrip is formed when two or more superconductor films are formed. The critical magnetic field strength of the superconductor film closer to the line resonator is smaller than the critical magnetic field strength of the superconductor film closer to the ground conductor, and is formed from above the uppermost dielectric substrate. By applying a DC magnetic field, by changing the strength of the DC magnetic field within a range including the critical strength of the superconductor film, the thickness of the dielectric substrate is changed equivalently and a plurality of resonance frequencies are provided. Yu who can Have the effect.
第１図（ａ）は本発明の一実施例のストリップライン共
振器フィルタの斜視図、同図（ｂ）はその伝送特性図、
第２図（ａ）は従来のストリップライン共振器フィルタ
の斜視図、同図（ｂ）はその伝送特性図である。 1,11……接地導体、2,3,4,12……誘電体基板、5,6……
超電導体膜、7,13……ストリップライン共振器、8,9,1
4,15……入出力のストリップライン、10……直流磁界。FIG. 1 (a) is a perspective view of a stripline resonator filter according to an embodiment of the present invention, and FIG. 1 (b) is its transmission characteristic diagram.
FIG. 2 (a) is a perspective view of a conventional stripline resonator filter, and FIG. 2 (b) is its transmission characteristic diagram. 1,11 …… Ground conductor, 2,3,4,12 …… Dielectric substrate, 5,6 ……
Superconductor film, 7,13 …… Stripline resonator, 8,9,1
4,15 …… Input / output stripline, 10 …… DC magnetic field.
Claims (1)
１個の超電導体膜を前記誘電体基板が端になるように交
互に重ね合わせ、最下段の誘電体基板の裏面には接地導
体を形成し、最上段の誘電体基板の表面にはマイクロス
トリップライン共振器を形成し、かつ前記超電導体膜が
２個以上の場合は、前記マイクロストリップライン共振
器に近い方の超電導体膜の臨界磁界強度が、前記接地導
体に近い方の超電導体膜の臨界磁界強度に比べて小さい
もので形成し、かつ前記最上段の誘電体基板の上方から
直流磁界を加え、前記直流磁界の強度を前記超電導体膜
の臨界強度を包含する範囲で変化させることにより、複
数の共振周波数を有するストリップライン共振器。1. n (n is 2 or more) dielectric substrates and n-
One superconducting film is alternately laminated so that the dielectric substrate is the end, a ground conductor is formed on the back surface of the lowermost dielectric substrate, and a microstrip is formed on the front surface of the uppermost dielectric substrate. When a line resonator is formed and the number of superconductor films is two or more, the critical magnetic field strength of the superconductor film closer to the microstrip line resonator is higher than that of the superconductor film closer to the ground conductor. It is formed of a material smaller than the critical magnetic field strength, and a DC magnetic field is applied from above the uppermost dielectric substrate, and the strength of the DC magnetic field is changed within a range including the critical strength of the superconductor film. , A stripline resonator having a plurality of resonance frequencies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63012953A JPH0812962B2 (en) | 1988-01-22 | 1988-01-22 | Stripline resonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63012953A JPH0812962B2 (en) | 1988-01-22 | 1988-01-22 | Stripline resonator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01189206A JPH01189206A (en) | 1989-07-28 |
| JPH0812962B2 true JPH0812962B2 (en) | 1996-02-07 |
Family
ID=11819638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63012953A Expired - Fee Related JPH0812962B2 (en) | 1988-01-22 | 1988-01-22 | Stripline resonator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0812962B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3839002A1 (en) | 2019-12-20 | 2021-06-23 | Bostik Sa | Hot-melt adhesive composition |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU7695598A (en) | 1997-05-30 | 1998-12-30 | Kaiser Aluminum & Chemical Corporation | Method for coating aluminum metal strip |
| FR2866979A1 (en) * | 2004-02-27 | 2005-09-02 | Centre Nat Rech Scient | THIN FILM SUPERCONDUCTING COMPONENTS WITH TUNABLE INDUCTANCE, METHOD FOR PRODUCING THE SAME, AND DEVICES INCLUDING SUCH COMPONENTS |
| FR2880991B1 (en) * | 2005-01-17 | 2007-04-06 | Centre Nat Rech Scient | USE OF THIN-FILM SUPERCONDUCTING COMPONENTS AS VARIABLE INDUCTANCE, DEVICES INCLUDING SUCH COMPONENTS, AND METHOD OF CONTROLLING THE SAME |
-
1988
- 1988-01-22 JP JP63012953A patent/JPH0812962B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3839002A1 (en) | 2019-12-20 | 2021-06-23 | Bostik Sa | Hot-melt adhesive composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01189206A (en) | 1989-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4423396A (en) | Bandpass filter for UHF band | |
| US5136268A (en) | Miniature dual mode planar filters | |
| US2859417A (en) | Microwave filters | |
| EP0519085B1 (en) | High-frequency device | |
| US5150084A (en) | Power divider | |
| US5192927A (en) | Microstrip spur-line broad-band band-stop filter | |
| JPH0443703A (en) | Symmetrical strip line resonator | |
| JPH05308201A (en) | Strip line filter | |
| US5990765A (en) | Planar dual mode filters and a method of construction thereof | |
| JPH03212001A (en) | dielectric filter | |
| JPH0637502A (en) | Parallel line bandpass filter | |
| US5278529A (en) | Broadband microstrip filter apparatus having inteleaved resonator sections | |
| JPH0812962B2 (en) | Stripline resonator | |
| JPH04368006A (en) | Oxide superconducting microwave component | |
| JP2898462B2 (en) | High frequency filter | |
| JPH08116203A (en) | Transformer coupler | |
| JPH05315805A (en) | Strip line loop resonator filter | |
| US3560892A (en) | Microstrip devices having strip conductor coated on ferrite substrate | |
| JP3176859B2 (en) | Dielectric filter | |
| Bonetti et al. | New design techniques for coupled-line filters with transmission zeros | |
| JPS6165502A (en) | Ferromagnetic thin film filter | |
| JP2768167B2 (en) | Stripline polarized filter | |
| Jia | Tunable Microwave Bandpass Filter Design Using the Sequential Method | |
| JP2000502231A (en) | Apparatus for filtering a signal and associated method | |
| US20040178866A1 (en) | Band rejection filter with attenuation poles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |