JP2005077408A - 無線周波電力計および無線周波信号の電力を測定する方法 - Google Patents
無線周波電力計および無線周波信号の電力を測定する方法 Download PDFInfo
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- JP2005077408A JP2005077408A JP2004237162A JP2004237162A JP2005077408A JP 2005077408 A JP2005077408 A JP 2005077408A JP 2004237162 A JP2004237162 A JP 2004237162A JP 2004237162 A JP2004237162 A JP 2004237162A JP 2005077408 A JP2005077408 A JP 2005077408A
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- Prior art keywords
- signal
- radio frequency
- power
- switch
- loop
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Classifications
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- 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
Abstract
【解決手段】無線周波電力計は、測定対象である第1の信号と第2の信号の一方から出力信号を切り替え可能に供給する第1のスイッチ(102)と、前記出力信号を検出し、それぞれ、第1、第2の帯域幅で第1、第2の比較信号を供給する互いに類似の第1、第2の信号処理経路(100;200)と、前記第1、第2の比較信号のいずれかより前記第1のスイッチへ前記第2の信号を切り替え可能に供給し、前記無線周波電力計用の閉ループを完成する第2のスイッチ(114)と、前記第1、第2の信号処理経路が生成するそれぞれの統合信号の一つを用いて前記測定対象の電力を示す情報を供給する出力ブロック(116)とを備える。
【選択図】図1
Description
101、115 線経路
102、114、117 スイッチ
103 RF結線
104、201 検出器ブロック
105、202 帯域通過フィルタ
106、113、203、207 可変利得増幅器
107、204 同期検波器
108、205 積分器
109、206 線形乗算器
110 基準発振器
111、208、209 分周器
112、210 遅延素子
116 出力ブロック
121、221 ダイオード積層体
122、222 コンデンサ
123、223 増幅器
Claims (1)
- 無線周波電力計であって、
測定対象無線周波信号である第1の信号と第2の信号のいずれか一方から出力信号を切り替え可能に供給する第1のスイッチ(102)と、
前記出力信号を検出し、第1の帯域幅で第1の比較信号を供給する第1の信号処理経路(100)と、
前記出力信号を検出し、第2の帯域幅で第2の比較信号を供給する第2の信号処理経路(200)と、
前記第1、第2の比較信号のいずれかより前記第1のスイッチへ前記第2の信号を切り替え可能に供給し、前記無線周波電力計用の閉ループを完成する第2のスイッチ(114)と、
前記第1、第2の信号処理経路が生成するそれぞれの統合信号の一つを用いて前記測定対象無線周波信号の電力を示す情報を供給する出力ブロック(116)と、
を備える無線周波電力計。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/652,288 US6903542B2 (en) | 2003-08-29 | 2003-08-29 | Systems and method for performing RF power measurements |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005077408A true JP2005077408A (ja) | 2005-03-24 |
JP2005077408A5 JP2005077408A5 (ja) | 2007-09-27 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2004237162A Pending JP2005077408A (ja) | 2003-08-29 | 2004-08-17 | 無線周波電力計および無線周波信号の電力を測定する方法 |
Country Status (2)
Country | Link |
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US (1) | US6903542B2 (ja) |
JP (1) | JP2005077408A (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7546098B2 (en) * | 2003-05-29 | 2009-06-09 | Analog Devices, Inc. | Control system with selective open-loop operation |
US20060224345A1 (en) * | 2005-04-04 | 2006-10-05 | Ives Fred H | System and method for improving electrical equipment accuracy by environmental condition compensation |
DE102008052335B4 (de) * | 2008-10-20 | 2021-08-26 | Rohde & Schwarz GmbH & Co. Kommanditgesellschaft | Mehrpfad-Leistungsmesser mit Verstärker |
US8125933B2 (en) | 2009-02-27 | 2012-02-28 | Research In Motion Limited | Mobile wireless communications device including a differential output LNA connected to multiple receive signal chains |
US8165045B2 (en) * | 2009-02-27 | 2012-04-24 | Research In Motion Limited | Mobile wireless communications device including a power divider connecting an LNA to multiple receive signal chains |
US8463209B1 (en) * | 2009-07-27 | 2013-06-11 | Rf Micro Devices, Inc. | Pre-charge of a power amplifier pedestal voltage |
DE102013202903A1 (de) * | 2013-02-22 | 2014-09-11 | Rohde & Schwarz Gmbh & Co. Kg | Leistungsmessgerät mit interner Kalibrierung von Diodendetektoren |
EP4009060A1 (en) * | 2020-12-02 | 2022-06-08 | Nxp B.V. | Rf power detector |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09138248A (ja) * | 1995-10-25 | 1997-05-27 | Hewlett Packard Co <Hp> | Rf電力測定装置および方法 |
JP2000310657A (ja) * | 1999-04-09 | 2000-11-07 | Agilent Technol Inc | 電力センサ及び電力センサ回路網 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5663638A (en) * | 1996-07-29 | 1997-09-02 | Hewlett-Packard Company | Calorimetric RF power meter with dynamic zeroing and constant temperature and power dissipation in the calorimetric bridge |
US5835850A (en) * | 1996-08-12 | 1998-11-10 | At&T Corp | Self-testing transceiver |
US6291984B1 (en) * | 1999-06-18 | 2001-09-18 | Anritsu Company | Dual mode diode power sensor with square law and linear operating regions |
US6534966B2 (en) * | 2001-05-10 | 2003-03-18 | Linear Technology Corporation | Methods and apparatus for power measuring receiver |
-
2003
- 2003-08-29 US US10/652,288 patent/US6903542B2/en not_active Expired - Fee Related
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2004
- 2004-08-17 JP JP2004237162A patent/JP2005077408A/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09138248A (ja) * | 1995-10-25 | 1997-05-27 | Hewlett Packard Co <Hp> | Rf電力測定装置および方法 |
JP2000310657A (ja) * | 1999-04-09 | 2000-11-07 | Agilent Technol Inc | 電力センサ及び電力センサ回路網 |
Also Published As
Publication number | Publication date |
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US6903542B2 (en) | 2005-06-07 |
US20050046409A1 (en) | 2005-03-03 |
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