GR20110100601A - Signal power detector with adjustable gain - Google Patents

Signal power detector with adjustable gain

Info

Publication number
GR20110100601A
GR20110100601A GR20110100601A GR20110100601A GR20110100601A GR 20110100601 A GR20110100601 A GR 20110100601A GR 20110100601 A GR20110100601 A GR 20110100601A GR 20110100601 A GR20110100601 A GR 20110100601A GR 20110100601 A GR20110100601 A GR 20110100601A
Authority
GR
Greece
Prior art keywords
transistors
signal
gain
terminals
nodes
Prior art date
Application number
GR20110100601A
Other languages
Greek (el)
Inventor
Χαραλαμπος Χρηστου Κυριακοπουλος
Original Assignee
Ceragon Networks Ελλας Συστηματα Τηλεπικοινωνιων Α.Ε.,
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ceragon Networks Ελλας Συστηματα Τηλεπικοινωνιων Α.Ε., filed Critical Ceragon Networks Ελλας Συστηματα Τηλεπικοινωνιων Α.Ε.,
Priority to GR20110100601A priority Critical patent/GR20110100601A/en
Publication of GR20110100601A publication Critical patent/GR20110100601A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/02—Measuring effective values, i.e. root-mean-square values
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/20—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating powers, roots, polynomes, mean square values, standard deviation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/14—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles
    • H03D1/18—Demodulation of amplitude-modulated oscillations by means of non-linear elements having more than two poles of semiconductor devices
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

The invention relates to a signal power detector with adjustable gain which can be applied on various electronic systems containing circuits in integrated form capable to evaluate the signal powerin a wide range of frequencies, from low to very high ones. It has three transistors (5,6,7) which are intended for squaring the voltage signal applied on the input terminals (2,3) and provide as output a current in differential form to the nodes (8, 9). By these nodes (8, 9), the transistors (5,6,7) of the squarer are connected to common nodes (8,9) of the gain control transistors (12,13,14,15) in pairs (12, 13) and (14, 15). These transistors (12,13,14,15) determine the gain by two control terminals (10,11). The control signal applied on the terminals (10,11) is voltage and such that it ensures a gain adjustment in a continuous, proportional manner. The transistors (12,15) guide the desired squared signal to the two output terminals (16,17) as current and the transistors (13,14) guide the remaining signal to the common node (18) of the supply.
GR20110100601A 2011-10-19 2011-10-19 Signal power detector with adjustable gain GR20110100601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GR20110100601A GR20110100601A (en) 2011-10-19 2011-10-19 Signal power detector with adjustable gain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR20110100601A GR20110100601A (en) 2011-10-19 2011-10-19 Signal power detector with adjustable gain

Publications (1)

Publication Number Publication Date
GR20110100601A true GR20110100601A (en) 2013-05-17

Family

ID=45990647

Family Applications (1)

Application Number Title Priority Date Filing Date
GR20110100601A GR20110100601A (en) 2011-10-19 2011-10-19 Signal power detector with adjustable gain

Country Status (1)

Country Link
GR (1) GR20110100601A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5581211A (en) * 1994-08-12 1996-12-03 Nec Corporation Squaring circuit capable of widening a range of an input voltage
US5768700A (en) * 1996-03-14 1998-06-16 Advanced Micro Devices, Inc. High conversion gain CMOS mixer
EP1176713A1 (en) * 1998-06-05 2002-01-30 Maxim Integrated Products, Inc. Gilbert-cell mixer with gain control
US20020070789A1 (en) * 2000-12-07 2002-06-13 Lutz Dathe Field effect transistor square multiplier
US20100327941A1 (en) * 2009-06-26 2010-12-30 Bae Systems Information And Electronic Systems Integration Inc. Transimpedance Amplifier Input Stage Mixer
US7902901B1 (en) * 2008-12-19 2011-03-08 Scintera Networks, Inc. RF squarer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5581211A (en) * 1994-08-12 1996-12-03 Nec Corporation Squaring circuit capable of widening a range of an input voltage
US5768700A (en) * 1996-03-14 1998-06-16 Advanced Micro Devices, Inc. High conversion gain CMOS mixer
EP1176713A1 (en) * 1998-06-05 2002-01-30 Maxim Integrated Products, Inc. Gilbert-cell mixer with gain control
US20020070789A1 (en) * 2000-12-07 2002-06-13 Lutz Dathe Field effect transistor square multiplier
US7902901B1 (en) * 2008-12-19 2011-03-08 Scintera Networks, Inc. RF squarer
US20100327941A1 (en) * 2009-06-26 2010-12-30 Bae Systems Information And Electronic Systems Integration Inc. Transimpedance Amplifier Input Stage Mixer

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Legal Events

Date Code Title Description
ML Lapse due to non-payment of fees

Effective date: 20140505