JPH03128469A - Superconducting electromagnetic wave detector - Google Patents
Superconducting electromagnetic wave detectorInfo
- Publication number
- JPH03128469A JPH03128469A JP26662189A JP26662189A JPH03128469A JP H03128469 A JPH03128469 A JP H03128469A JP 26662189 A JP26662189 A JP 26662189A JP 26662189 A JP26662189 A JP 26662189A JP H03128469 A JPH03128469 A JP H03128469A
- Authority
- JP
- Japan
- Prior art keywords
- electromagnetic wave
- superconducting
- vacuum container
- sensor
- superconducting electromagnetic
- 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.)
- Pending
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 4
- 238000005057 refrigeration Methods 0.000 claims abstract description 4
- 239000002887 superconductor Substances 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims abstract 2
- 239000002184 metal Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 3
- 230000005540 biological transmission Effects 0.000 claims 2
- 230000008014 freezing Effects 0.000 claims 2
- 238000007710 freezing Methods 0.000 claims 2
- 239000011358 absorbing material Substances 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 abstract 1
- 238000011896 sensitive detection Methods 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
(イ)産業上の利用分野
本発明は近年注口を浴びている高温酸化物JR電電体体
らなる超1tt導電磁波センサを用いた電磁波検出器に
関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an electromagnetic wave detector using a super 1TT conductive electromagnetic wave sensor made of a high temperature oxide JR electric body, which has been attracting attention in recent years.
(ロ)従来の技術
曳(E、電磁波、特に超高周波帯域の電磁波に対する検
出器としては、GaAsなとの化合物半導体を用いたも
のが存在するが、実用化されているものとしては数十G
)I zが限度であり、また理論的にも200〜30
0GIIz以上の周波数には対応できない。また現行の
化合物゛i導体を用いた電磁波検出器の感度は極めて低
く、大面積のパラボラアンテナを必要とする一Lに、増
幅唇が不可欠である。(B) Conventional technology (E) There are detectors for electromagnetic waves, especially electromagnetic waves in the ultra-high frequency band, that use compound semiconductors such as GaAs, but the ones that have been put into practical use are several tens of G
) I z is the limit, and theoretically it is 200 to 30
It cannot support frequencies higher than 0GIIz. Furthermore, the sensitivity of current electromagnetic wave detectors using compound i conductors is extremely low, and an amplification lip is indispensable for 1L, which requires a large-area parabolic antenna.
このような問題点に対応するできるものとしては、超電
導素T−を用いた検出器が古くから提案されていたが、
従来のNbなどの金属系超電導素子をJIi電導状態に
維持するためには液体ヘリウムを用いる必要があり、装
;iFiが極めて大型化する一■−に、コスト面でも問
題があって、実用化の機運にはないのが実情である。Detectors using superconducting element T- have been proposed for a long time as a solution to these problems, but
In order to maintain conventional metal-based superconducting elements such as Nb in a JIi conductive state, it is necessary to use liquid helium. The reality is that there is no momentum.
(ハ)発明が解決しようとする課題
本発明はこのような課題に鑑みて為されたものであって
、100GIIz以l−の超高周波帯域の電磁波を高感
度で検出できるtk電磁波検出器簡単な構成で11)ん
とするものである。(c) Problems to be Solved by the Invention The present invention has been made in view of these problems, and is a simple TK electromagnetic wave detector that can detect electromagnetic waves in the ultra-high frequency band of 100 GIIz or higher with high sensitivity. The structure is 11).
(ニ)課題を解決するための手段
本発明は、窒素ガスによるジュールトムソン効果を用い
た冷凍部材に高温酸化物超電導体からなる超電導電磁波
センサを熱体的に取り付け、この冷凍部材と超電導電磁
波センサとを真空容器内に収納して断熱状態に保持する
と共に、この真空容2(の上記超電導電磁波センサに対
向した箇所に電磁波透過窓を設けている。(d) Means for Solving the Problems The present invention provides a method for thermally attaching a superconducting electromagnetic wave sensor made of a high-temperature oxide superconductor to a refrigeration member using the Joule-Thomson effect caused by nitrogen gas. is housed in a vacuum container and maintained in a heat-insulated state, and an electromagnetic wave transmitting window is provided at a portion of the vacuum volume 2 (facing the superconducting electromagnetic wave sensor).
(ホ)作用
本発明は、超高周波数帯域の電磁波を高感度で検出でき
る電磁波検出器を極めて簡便化された冷却丁段にて得る
ことができる。(E) Function The present invention can provide an electromagnetic wave detector capable of detecting electromagnetic waves in an ultra-high frequency band with high sensitivity using a very simple cooling stage.
(へ)実施例(f) Example
Claims (5)
凍部材に高温酸化物超電導体からなる超電導電磁波セン
サを熱伝的に取り付け、この冷凍部材と超電導電磁波セ
ンサとを金属製真空容器内に収納して断熱状態に保持す
ると共に、この真空容器の上記超電導電磁波センサに対
向した箇所に電磁波を透過させる材料にて構成された電
磁波透過窓を設けたことを特徴とする超電導電磁波検出
器。(1) A superconducting electromagnetic wave sensor made of a high-temperature oxide superconductor is thermally attached to a freezing member that uses the Joule-Thomson effect using nitrogen gas, and the freezing member and superconducting electromagnetic wave sensor are housed in a metal vacuum container. A superconducting electromagnetic wave detector, which is maintained in an adiabatic state and further comprising an electromagnetic wave transmitting window made of a material that transmits electromagnetic waves at a portion of the vacuum container facing the superconducting electromagnetic wave sensor.
してなる請求項1記載の超電導電磁波検出器。(2) The superconducting electromagnetic wave detector according to claim 1, wherein the inner wall of the metal vacuum container is coated with an electromagnetic wave absorbing material.
凍部材に高温酸化物超電導体からなる超電導電磁波セン
サを熱伝的に取り付け、この冷凍部材と超電導電磁波セ
ンサとを電磁波を透過させる材料にて構成された真空容
器内に収納して断熱状態に保持すると共に、この真空容
器の上記超電導電磁波センサに対向した箇所を除いて該
容器の壁面を電磁波を遮蔽する材料にて被い、この電磁
波遮蔽材が被覆されていない個所を電磁波透過窓とした
ことを特徴とする超電導電磁波検出器。(3) A superconducting electromagnetic wave sensor made of a high-temperature oxide superconductor is thermally attached to a refrigeration member that uses the Joule-Thomson effect using nitrogen gas, and the refrigeration member and the superconducting electromagnetic wave sensor are made of a material that transmits electromagnetic waves. The vacuum container is housed in a vacuum container and maintained in an insulated state, and the walls of the vacuum container except for the portion facing the superconducting electromagnetic wave sensor are covered with a material that shields electromagnetic waves. A superconducting electromagnetic wave detector characterized in that the uncovered portion is used as an electromagnetic wave transmission window.
たホーンアンテナを設けると共に、その電磁波検出窓の
内側に上記超電導電磁波センサにまで達する導波路を設
けた請求項1、2、または3記載の超電導電磁波検出器
。(4) Claims 1, 2, or 3, wherein an outwardly open horn antenna is provided in the electromagnetic wave transmission window portion of the vacuum container, and a waveguide that reaches the superconducting electromagnetic wave sensor is provided inside the electromagnetic wave detection window. The superconducting electromagnetic wave detector described.
周波数に対応した形状を有することを特徴とした請求項
4記載の超電導電磁波検出器。(5) The superconducting electromagnetic wave detector according to claim 4, wherein the horn antenna has a shape corresponding to the frequency of the electromagnetic wave to be detected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26662189A JPH03128469A (en) | 1989-10-13 | 1989-10-13 | Superconducting electromagnetic wave detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26662189A JPH03128469A (en) | 1989-10-13 | 1989-10-13 | Superconducting electromagnetic wave detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03128469A true JPH03128469A (en) | 1991-05-31 |
Family
ID=17433360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP26662189A Pending JPH03128469A (en) | 1989-10-13 | 1989-10-13 | Superconducting electromagnetic wave detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03128469A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5451970A (en) * | 1992-05-28 | 1995-09-19 | Cole; Carroll R. | Radar antenna unit having a plurality of heat dissipating fins forming on the exterior of a cone shaped chamber |
US5606328A (en) * | 1995-12-26 | 1997-02-25 | Hughes Electronics | RF isolation inspection tool |
JP2013247571A (en) * | 2012-05-28 | 2013-12-09 | Toshiba Corp | Reception antenna device |
-
1989
- 1989-10-13 JP JP26662189A patent/JPH03128469A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5451970A (en) * | 1992-05-28 | 1995-09-19 | Cole; Carroll R. | Radar antenna unit having a plurality of heat dissipating fins forming on the exterior of a cone shaped chamber |
US5606328A (en) * | 1995-12-26 | 1997-02-25 | Hughes Electronics | RF isolation inspection tool |
JP2013247571A (en) * | 2012-05-28 | 2013-12-09 | Toshiba Corp | Reception antenna device |
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