JPH02280065A - Electric power detector - Google Patents
Electric power detectorInfo
- Publication number
- JPH02280065A JPH02280065A JP10200989A JP10200989A JPH02280065A JP H02280065 A JPH02280065 A JP H02280065A JP 10200989 A JP10200989 A JP 10200989A JP 10200989 A JP10200989 A JP 10200989A JP H02280065 A JPH02280065 A JP H02280065A
- Authority
- JP
- Japan
- Prior art keywords
- thermocouples
- thermocouple
- electric power
- microstrip line
- signal
- 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.)
- Granted
Links
- 239000000758 substrate Substances 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 5
- 239000011888 foil Substances 0.000 abstract description 4
- 239000003990 capacitor Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910001006 Constantan Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/02—Arrangements for measuring electric power or power factor by thermal methods, e.g. calorimetric
- G01R21/04—Arrangements for measuring electric power or power factor by thermal methods, e.g. calorimetric in circuits having distributed constants
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は電力検出器に関し、特に高周波の電力検出器に
関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a power detector, and particularly to a high frequency power detector.
（従来の技術）
従来、高周波の電力検出器としては、通過型電力検出器
が用いられている。この種の通過型電力検出器の一例と
して、第２図に示す如く誘電体基板１上に形成したマイ
クロストリップ線路２の高周波信号入出力部１０からの
高周波信号を方向性結合器２１で分岐し、この分岐した
高周波信号を検波用ダイオード２４で検波する装置が提
案されている。尚、図中、１１は高周波信号入出力部、
２２は終端抵抗、２３は接地用スルーポールを示す。(Prior Art) Conventionally, a pass-through power detector has been used as a high-frequency power detector. As an example of this type of pass-through power detector, as shown in FIG. A device has been proposed in which this branched high frequency signal is detected by a detection diode 24. In addition, in the figure, 11 is a high frequency signal input/output section,
22 is a terminating resistor, and 23 is a grounding through pole.
（発明が解決しようとする課題）
上述した従来の電力検出器では、方向性結合器とダイオ
ード検波器の組み合わせはマイクロストリップ線路上に
構成可能で、検波出力が比較的大きいので回路設計が容
易である反面、被測定電力が大きくなると、方向性結合
器が疎結合となり誤差が大きくなったり、ダイオード検
波器の入力電力が大きくなりダイオードを破損する恐れ
が生ずるなどの欠点がある。(Problems to be Solved by the Invention) In the conventional power detector described above, the combination of a directional coupler and a diode detector can be configured on a microstrip line, and the detection output is relatively large, making circuit design easy. On the other hand, when the power to be measured increases, there are disadvantages such as the directional coupler becomes loosely coupled and errors become large, and the input power of the diode detector increases and there is a risk of damaging the diode.
（課題を解決するための手段）
本発明の電力検出器は、誘電体基板上に形成されたマイ
クロストリップ線路に熱電対を接続構成し、被測定信号
が前記熱電対を通過することによる発熱によって前記被
測定信号の電力を検出する。(Means for Solving the Problems) The power detector of the present invention has a thermocouple connected to a microstrip line formed on a dielectric substrate, and generates heat when a signal to be measured passes through the thermocouple. Detecting the power of the signal under measurement.
（実施例） 次に本発明について図面を参照して説明する。(Example) Next, the present invention will be explained with reference to the drawings.
第１図は本発明による電力検出器の一実施例を示す斜視
図である。FIG. 1 is a perspective view showing an embodiment of a power detector according to the present invention.
誘電体基板１上に形成されたマイクロストリップ線路２
の間には熱電対用金属箔３，４が接続される。金属箔３
と４は異種金属であり、両者の接合点５は熱電対を形成
している。基板１上には金属箔３．４と同じ材質で作ら
れ、接合点５°を形成するための他の熱電対３゛、４°
が設けられ、この熱電対３°、４′は熱電対３．４と電
気的に逆接続とされ、基板全体の温度上昇は相殺される
ように構成されている。ここで、熱電対用金属３．３゛
と４，４°としては銅とコンスタンタンを用い得る。ま
た、マイクロストリップ線＃Ｉ２上には直流阻止用コン
デンサ１２，１２°が、熱電対からの電圧引き出し線６
．６′には高周波チョーク７．７°が段けられ、電力検
出器の検出電圧取り出し部８．９から直流出力のみが取
り出せるように構成されている。Microstrip line 2 formed on dielectric substrate 1
Thermocouple metal foils 3 and 4 are connected between them. metal foil 3
and 4 are different metals, and a junction point 5 between the two forms a thermocouple. On the substrate 1 are other thermocouples 3゛, 4° made of the same material as the metal foil 3.4 to form a junction 5°.
The thermocouples 3.degree. and 4' are electrically connected in reverse to the thermocouple 3.4, so that the temperature rise of the entire board is offset. Here, copper and constantan can be used as the thermocouple metals 3.3° and 4.4°. In addition, a DC blocking capacitor 12, 12° is placed on the microstrip line #I2, and a voltage lead-out line 6 from the thermocouple.
．． A high frequency choke 7.7° is provided at 6', and the configuration is such that only the DC output can be taken out from the detected voltage extraction part 8.9 of the power detector.
（発明の効果）
以上説明したように本発明は、誘電体基板上のマイクロ
ストリップ線路上に熱電対を被測定信号が通過するよう
に構成し、熱電対の抵抗により自らが発熱することによ
って電力検出できるように配置しているので、大電力の
電力検出が安定にがつ、安価に実現できる効果がある。(Effects of the Invention) As explained above, the present invention configures a thermocouple on a microstrip line on a dielectric substrate so that a signal to be measured passes through it, and generates electric power by generating heat due to the resistance of the thermocouple. Since it is arranged so that it can be detected, it has the effect of being able to stably detect large amounts of power at a low cost.
第１図は本発明による一実施例を示す構成図、第２図は
従来の電力検出器の一例を示す構成図である。
１・・・誘電体基板、２・・・マイクロストリップ線路
、３．３’ 、４．４″・・・熱電対用金属、５，５゛
・・・熱電対の接合点、６，６°・・・男力引き男し周
線１路、７．７°・・・高周波チョーク、８．９・・・
検出電圧取り出し部、１０．１１・・・高周波信号入出
力部、１２．１２°・・・直流阻止用コンデンサ、２１
・・・方向性結合器、２２・・・終端抵抗、２３・・・
接地用スルーホール、２４・・・検波用ダイオード。FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing an example of a conventional power detector. 1... Dielectric substrate, 2... Microstrip line, 3.3', 4.4''... Metal for thermocouple, 5,5゛... Thermocouple junction, 6,6° ...Male power pulling man's circumference line 1, 7.7°...High frequency choke, 8.9...
Detection voltage extraction section, 10.11... High frequency signal input/output section, 12.12°... DC blocking capacitor, 21
...Directional coupler, 22...Terminal resistor, 23...
Through hole for grounding, 24... diode for detection.
Claims (1)
電対を接続構成し、被測定信号が前記熱電対を通過する
ことによる発熱によって前記被測定信号の電力を検出す
ることを特徴とする電力検出器。A power detector comprising a thermocouple connected to a microstrip line formed on a dielectric substrate, and detecting the power of the signal to be measured by heat generated when the signal to be measured passes through the thermocouple. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1102009A JPH0726983B2 (en) | 1989-04-21 | 1989-04-21 | Power detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1102009A JPH0726983B2 (en) | 1989-04-21 | 1989-04-21 | Power detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02280065A true JPH02280065A (en) | 1990-11-16 |
| JPH0726983B2 JPH0726983B2 (en) | 1995-03-29 |
Family
ID=14315774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1102009A Expired - Lifetime JPH0726983B2 (en) | 1989-04-21 | 1989-04-21 | Power detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0726983B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6972638B2 (en) | 2002-06-28 | 2005-12-06 | Fujitsu Quantum Devices Limited | Directional coupler and electronic device using the same |
| WO2006007140A1 (en) | 2004-06-18 | 2006-01-19 | Raytheon Company | Microstrip power sensor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5420770A (en) * | 1977-07-18 | 1979-02-16 | Hitachi Denshi Ltd | Super high frequency calorimeter |
| JPS6162875A (en) * | 1984-09-04 | 1986-03-31 | Shimada Phys & Chem Ind Co Ltd | Indirectly-heated power sensor |
-
1989
- 1989-04-21 JP JP1102009A patent/JPH0726983B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5420770A (en) * | 1977-07-18 | 1979-02-16 | Hitachi Denshi Ltd | Super high frequency calorimeter |
| JPS6162875A (en) * | 1984-09-04 | 1986-03-31 | Shimada Phys & Chem Ind Co Ltd | Indirectly-heated power sensor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6972638B2 (en) | 2002-06-28 | 2005-12-06 | Fujitsu Quantum Devices Limited | Directional coupler and electronic device using the same |
| WO2006007140A1 (en) | 2004-06-18 | 2006-01-19 | Raytheon Company | Microstrip power sensor |
| US7670045B2 (en) | 2004-06-18 | 2010-03-02 | Raytheon Company | Microstrip power sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0726983B2 (en) | 1995-03-29 |
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