WO2003067270A1 - Leistungsdetektor mit gleichspannungsentkopplung - Google Patents
Leistungsdetektor mit gleichspannungsentkopplung Download PDFInfo
- Publication number
- WO2003067270A1 WO2003067270A1 PCT/EP2003/000857 EP0300857W WO03067270A1 WO 2003067270 A1 WO2003067270 A1 WO 2003067270A1 EP 0300857 W EP0300857 W EP 0300857W WO 03067270 A1 WO03067270 A1 WO 03067270A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- line
- signal line
- detection
- power detector
- detector according
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/01—Arrangements for measuring electric power or power factor in circuits having distributed constants
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/10—Arrangements for measuring electric power or power factor by using square-law characteristics of circuit elements, e.g. diodes, to measure power absorbed by loads of known impedance
- G01R21/12—Arrangements for measuring electric power or power factor by using square-law characteristics of circuit elements, e.g. diodes, to measure power absorbed by loads of known impedance in circuits having distributed constants
Definitions
- the invention relates to a power detector for measuring the average power of modulated or unmodulated high frequency. Microwave signals.
- Power detectors are known in a wide variety of embodiments.
- the most common implementations either contain a thermal sensor, which generates an electrical measurement variable proportional to the absorbed electrical power, or they contain a diode rectifier in one- or two-way connection, which supplies an electrical output variable equivalent to the voltage at the terminating resistor, from which the power to be measured is then determined can be.
- Such a power detector is known, for example, from the applicant's unpublished DE 100 39 665.
- a strip line is connected directly to the input connection without electrical isolation.
- the stripline is terminated by a power divider.
- the detector diodes can be connected to a differential amplifier for recording the measurement signal.
- the spatial separation of the detector diodes has the advantage that the arrangement is less sensitive to reflections. The difference between the output voltages at the two detector diodes is therefore less dependent on the adaptation of the power divider and the parasitic diode capacitance. Further measuring branches with upstream damping stages are connected to the power divider, so that overall a relatively large dynamic range is created.
- the measurement signal has a DC voltage component, a measurement error occurs due to the path resistance of the strip line connecting the detector diodes and the associated voltage drop, which is not insignificant.
- the use of an isolating capacitor to suppress the DC component of the measurement signal has several disadvantages. Firstly, the capacitance of the isolating capacitor must be dimensioned relatively large in order to achieve a low lower cut-off frequency for a broadband design of the power detector. This leads to a relatively large mechanical design. On the other hand, the isolating capacitor for microwave applications must be integrated into a low-reflection high-frequency power. This leads to additional disturbing reflections and thus to larger measurement errors.
- the invention is therefore based on the object of providing a power detector which is relatively insensitive to a DC voltage component and at the same time insensitive to reflections, for example from a terminating resistor or a power divider.
- the invention is based on the finding that DC decoupling can be achieved in that the taps for the detector elements, for example the detector diodes, are not located directly on the signal line but on a detection line which is capacitively and / or inductively coupled to the signal line.
- the detection line could theoretically be completely galvanically isolated from the signal line.
- the voltage taps at the detection positions of the detection line are therefore at the same DC voltage potential and a DC voltage component of the measurement signal does not lead to a measurement error.
- the detection line can be on the signal line using thin-layer multilayer technology with a thin layer interposed Insulation layer be put on. In principle, it is also conceivable to design the signal line and the detection line as coupled lines in a planar manner next to one another.
- the line impedance of the detection line is relatively low and is of the same order of magnitude as the path resistance of the signal line. Even if the incomplete detection line is resonant for individual measuring frequencies, there are no disturbing pronounced resonances due to the low circuit quality due to the high damping.
- the development according to the invention is suitable both for two-way rectifiers, each with a detector diode for both half-waves, and for one-way rectifiers, with only one detector diode, the reference potential for the differential amplifier then being able to be tapped at a tap position offset from the tapping position of the detector diode on the detection line ,
- Fig. 2 is a schematic representation of a first embodiment of the invention
- FIG. 3 shows a schematic illustration of a second exemplary embodiment of the invention
- FIG. 4 A possible implementation of the first embodiment of the invention shown in Fig. 2 in coplanar technology; 5 shows a schematic illustration of a third exemplary embodiment of the invention;
- the measurement signal is thus the signal lines 3 A or 3 B or 3 C of the different measuring branches A, B, C in different
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03737284A EP1472549B8 (de) | 2002-02-08 | 2003-01-28 | Leistungsdetektor mit gleichspannungsentkopplung |
US10/504,001 US7088089B2 (en) | 2002-02-08 | 2003-01-28 | Power detector with constant voltage decoupling |
DE50301001T DE50301001D1 (de) | 2002-02-08 | 2003-01-28 | Leistungsdetektor mit gleichspannungsentkopplung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10205359.6 | 2002-02-08 | ||
DE10205359A DE10205359A1 (de) | 2002-02-08 | 2002-02-08 | Leistungsdetektor mit Gleichspannungsentkopplung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003067270A1 true WO2003067270A1 (de) | 2003-08-14 |
Family
ID=27618484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/000857 WO2003067270A1 (de) | 2002-02-08 | 2003-01-28 | Leistungsdetektor mit gleichspannungsentkopplung |
Country Status (3)
Country | Link |
---|---|
US (1) | US7088089B2 (de) |
DE (2) | DE10205359A1 (de) |
WO (1) | WO2003067270A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7379716B2 (en) * | 2005-03-24 | 2008-05-27 | University Of Florida Research Foundation, Inc. | Embedded IC test circuits and methods |
EP1947464A1 (de) * | 2007-01-22 | 2008-07-23 | Nokia Siemens Networks S.p.A. | Leistungsdetektor mit Unempfindlichkeit gegen stehende Wellen eines über einen fehlerhaften Wellenleiter übertragenen Mikrowellensignals |
DE102009001081B3 (de) * | 2009-02-23 | 2010-04-22 | Airbus Deutschland Gmbh | Vorrichtung und Verfahren zum Übertragen von Daten und Energie über Einrichtungen eines Netzwerkes |
DE102013202903A1 (de) * | 2013-02-22 | 2014-09-11 | Rohde & Schwarz Gmbh & Co. Kg | Leistungsmessgerät mit interner Kalibrierung von Diodendetektoren |
DE102014200517B4 (de) * | 2013-10-07 | 2023-05-11 | Rohde & Schwarz GmbH & Co. Kommanditgesellschaft | Verfahren, Kalibriereinheit und System zur Ermittlung von Systemfehlern und Leistungswerten für die Kalibrierung eines Netzwerkanalysators |
CN108982963B (zh) * | 2018-04-17 | 2023-07-07 | 南京邮电大学 | 一种基于分流效应的高精度微波功率检测系统 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1103459B (de) * | 1959-01-06 | 1961-03-30 | Rafena Werke Radeberg Veb | Koaxiale Durchgangsleistungs-messeinrichtung fuer das VHF-UHF-Gebiet |
WO2001065267A1 (en) * | 2000-03-02 | 2001-09-07 | Sarnoff Corporation | Method and apparatus for measuring true transmitted power using a broadband dual directional coupler |
WO2002014880A2 (de) * | 2000-08-14 | 2002-02-21 | Rohde & Schwarz Gmbh & Co. Kg | Leistungssensor |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2562281A (en) * | 1944-06-14 | 1951-07-31 | Bell Telephone Labor Inc | Directive pickup for transmission lines |
US2443097A (en) * | 1944-11-16 | 1948-06-08 | Rca Corp | Radio-frequency wattmeter |
US2522563A (en) * | 1946-01-16 | 1950-09-19 | Rca Corp | Standing wave detector |
US2925556A (en) * | 1955-12-28 | 1960-02-16 | Siemens Ag | Arrangement for measuring incident and reflected power in impulse peaks |
US3447082A (en) * | 1965-03-08 | 1969-05-27 | Catharine E Calderhead | Thermocouple milliwattmeter |
DE6932445U (de) | 1969-08-16 | 1970-07-02 | Textar Gmbh | Gleitelement, insbesondere gleitstein, zur uebertragung von antriebskraeften bei antriebsmaschinen |
US3755735A (en) * | 1972-01-26 | 1973-08-28 | Republic Electronics Ind Corp | Temperature and load compensated r.f. detector for peak power measurement system |
DE3644205A1 (de) * | 1986-12-23 | 1988-07-14 | Ant Nachrichtentech | Anordnung zum ermitteln eines signals, welches der leistung eines hochfrequenzsignals proportional ist |
US4873484A (en) * | 1987-09-03 | 1989-10-10 | Lucas Weinschel, Inc. | Extended range composite head power sensor with three circuit branches having a common node |
US4943764A (en) * | 1987-12-11 | 1990-07-24 | Hewlett-Packard Company | Wide dynamic range radio-frequency power sensor |
DE3927114A1 (de) * | 1989-08-17 | 1991-02-21 | Telefunken Systemtechnik | Koppler fuer den mikrowellenbereich |
US5302024A (en) * | 1990-10-09 | 1994-04-12 | Lockheed Sanders, Inc. | Monolithic microwave power sensor using a heat sensing diode junction |
JPH04256203A (ja) * | 1991-02-07 | 1992-09-10 | Mitsubishi Electric Corp | マイクロ波帯ic用パッケージ |
CA2109441C (en) * | 1992-10-29 | 1997-05-13 | Yuhei Kosugi | Composite microwave circuit module assembly and its connection structure |
DE4239740C1 (de) * | 1992-11-26 | 1994-06-23 | Rohde & Schwarz | Anordnung zum Messen der vor- und rücklaufenden Welle auf einer Hochfrequenzleitung |
US5325064A (en) * | 1992-12-21 | 1994-06-28 | Harris Corporation | Wideband flat power detector |
JP2656000B2 (ja) * | 1993-08-31 | 1997-09-24 | 日立金属株式会社 | ストリップライン型高周波部品 |
US5467013A (en) * | 1993-12-07 | 1995-11-14 | Sematech, Inc. | Radio frequency monitor for semiconductor process control |
FI101505B (fi) * | 1995-05-10 | 1998-06-30 | Nokia Mobile Phones Ltd | Menetelmä suuntakytkimellä toteutetun tehonmittauksen parantamiseksi p ienillä tehotasoilla |
-
2002
- 2002-02-08 DE DE10205359A patent/DE10205359A1/de not_active Withdrawn
-
2003
- 2003-01-28 WO PCT/EP2003/000857 patent/WO2003067270A1/de active IP Right Grant
- 2003-01-28 US US10/504,001 patent/US7088089B2/en not_active Expired - Lifetime
- 2003-01-28 DE DE50301001T patent/DE50301001D1/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1103459B (de) * | 1959-01-06 | 1961-03-30 | Rafena Werke Radeberg Veb | Koaxiale Durchgangsleistungs-messeinrichtung fuer das VHF-UHF-Gebiet |
WO2001065267A1 (en) * | 2000-03-02 | 2001-09-07 | Sarnoff Corporation | Method and apparatus for measuring true transmitted power using a broadband dual directional coupler |
WO2002014880A2 (de) * | 2000-08-14 | 2002-02-21 | Rohde & Schwarz Gmbh & Co. Kg | Leistungssensor |
Also Published As
Publication number | Publication date |
---|---|
DE10205359A1 (de) | 2003-08-21 |
US20050116701A1 (en) | 2005-06-02 |
US7088089B2 (en) | 2006-08-08 |
DE50301001D1 (de) | 2005-09-22 |
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