WO2008007317A3 - A microwave circuit with improved quadrature balance. - Google Patents

A microwave circuit with improved quadrature balance. Download PDF

Info

Publication number
WO2008007317A3
WO2008007317A3 PCT/IB2007/052643 IB2007052643W WO2008007317A3 WO 2008007317 A3 WO2008007317 A3 WO 2008007317A3 IB 2007052643 W IB2007052643 W IB 2007052643W WO 2008007317 A3 WO2008007317 A3 WO 2008007317A3
Authority
WO
WIPO (PCT)
Prior art keywords
microwave circuit
phase difference
output signals
amplitude ratio
circuit
Prior art date
Application number
PCT/IB2007/052643
Other languages
French (fr)
Other versions
WO2008007317A2 (en
Inventor
Karl Martin Gjertsen
Original Assignee
Nera Networks As
Karl Martin Gjertsen
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 Nera Networks As, Karl Martin Gjertsen filed Critical Nera Networks As
Priority to EP07825898A priority Critical patent/EP2044649A4/en
Publication of WO2008007317A2 publication Critical patent/WO2008007317A2/en
Publication of WO2008007317A3 publication Critical patent/WO2008007317A3/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/12—Coupling devices having more than two ports
    • H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
    • H01P5/19—Conjugate devices, i.e. devices having at least one port decoupled from one other port of the junction type
    • H01P5/22—Hybrid ring junctions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/12—Coupling devices having more than two ports
    • H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/12—Coupling devices having more than two ports
    • H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
    • H01P5/19—Conjugate devices, i.e. devices having at least one port decoupled from one other port of the junction type
    • H01P5/22—Hybrid ring junctions
    • H01P5/227—90° branch line couplers

Abstract

The invention discloses a microwave circuit (500) comprising a quadrature circuit (300) with first (1 ) and second (2) inputs, and first (3) and second outputs (4), the quadrature circuit (300) being designed to give a desired phase difference and amplitude ratio between the output signals of said output ports (3, 4) when a first input signal is applied to the first input port (1 ). The second input port (2) of the quadrature circuit (300) is connected to impedance (120, 220), and said impedance (120, 220) is chosen so that said desired phase difference between the output signals (3, 4) is obtained and maintained, and also so that said amplitude ratio between the amplitudes of the output signals is obtained and maintained. Suitably, the phase difference is ninety degrees and the amplitude ratio is equality of the amplitudes
PCT/IB2007/052643 2006-07-07 2007-07-05 A microwave circuit with improved quadrature balance. WO2008007317A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07825898A EP2044649A4 (en) 2006-07-07 2007-07-05 A microwave circuit with improved quadrature balance.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0601491-4 2006-07-07
SE0601491A SE532094C2 (en) 2006-07-07 2006-07-07 A microwave circuit with improved quadrature balance

Publications (2)

Publication Number Publication Date
WO2008007317A2 WO2008007317A2 (en) 2008-01-17
WO2008007317A3 true WO2008007317A3 (en) 2008-04-24

Family

ID=38923646

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/052643 WO2008007317A2 (en) 2006-07-07 2007-07-05 A microwave circuit with improved quadrature balance.

Country Status (3)

Country Link
EP (1) EP2044649A4 (en)
SE (1) SE532094C2 (en)
WO (1) WO2008007317A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5975701A (en) * 1982-10-22 1984-04-28 Nec Corp Impedance hybrid
JPH0730463A (en) * 1993-07-08 1995-01-31 Anritsu Corp Quadrature modulator
US6297696B1 (en) * 2000-06-15 2001-10-02 International Business Machines Corporation Optimized power amplifier
EP1713144A1 (en) * 2005-04-11 2006-10-18 NTT DoCoMo, Inc. Quadrature hybrid circuit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5481231A (en) * 1994-06-21 1996-01-02 Motorola, Inc. Lumped element four port coupler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5975701A (en) * 1982-10-22 1984-04-28 Nec Corp Impedance hybrid
JPH0730463A (en) * 1993-07-08 1995-01-31 Anritsu Corp Quadrature modulator
US6297696B1 (en) * 2000-06-15 2001-10-02 International Business Machines Corporation Optimized power amplifier
EP1713144A1 (en) * 2005-04-11 2006-10-18 NTT DoCoMo, Inc. Quadrature hybrid circuit

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
CARCHON G. ET AL.: "Integration of CPW Quadrature Couplers in Multilayer Thin-Film MCM-D", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. 49, no. 10, October 2001 (2001-10-01), pages 1770 - 1776, XP001108273 *
PATENT ABSTRACTS OF JAPAN *
See also references of EP2044649A4 *

Also Published As

Publication number Publication date
EP2044649A4 (en) 2011-10-26
WO2008007317A2 (en) 2008-01-17
SE532094C2 (en) 2009-10-20
SE0601491L (en) 2008-01-08
EP2044649A2 (en) 2009-04-08

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