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GB2292031B - A quadrature network - Google Patents

A quadrature network

Info

Publication number
GB2292031B
GB2292031B GB9515641A GB9515641A GB2292031B GB 2292031 B GB2292031 B GB 2292031B GB 9515641 A GB9515641 A GB 9515641A GB 9515641 A GB9515641 A GB 9515641A GB 2292031 B GB2292031 B GB 2292031B
Authority
GB
United Kingdom
Prior art keywords
quadrature network
quadrature
network
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.)
Expired - Fee Related
Application number
GB9515641A
Other versions
GB9515641D0 (en
GB2292031A (en
Inventor
Marcus K Dasilva
Andrew M Teetzel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HP Inc
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Priority claimed from GB9419141A external-priority patent/GB2282289B/en
Publication of GB9515641D0 publication Critical patent/GB9515641D0/en
Publication of GB2292031A publication Critical patent/GB2292031A/en
Application granted granted Critical
Publication of GB2292031B publication Critical patent/GB2292031B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/16—Networks for phase shifting
    • H03H11/22—Networks for phase shifting providing two or more phase shifted output signals, e.g. n-phase output
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/38—Angle modulation by converting amplitude modulation to angle modulation
    • H03C3/40—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated
GB9515641A 1993-09-22 1994-09-22 A quadrature network Expired - Fee Related GB2292031B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12538093A 1993-09-22 1993-09-22
GB9419141A GB2282289B (en) 1993-09-22 1994-09-22 Phase shift circuit in a wideband IQ modulator

Publications (3)

Publication Number Publication Date
GB9515641D0 GB9515641D0 (en) 1995-09-27
GB2292031A GB2292031A (en) 1996-02-07
GB2292031B true GB2292031B (en) 1998-03-18

Family

ID=26305672

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9515641A Expired - Fee Related GB2292031B (en) 1993-09-22 1994-09-22 A quadrature network

Country Status (1)

Country Link
GB (1) GB2292031B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3314726B2 (en) * 1998-07-17 2002-08-12 日本電気株式会社 Phase shift circuit, phase shift circuit using the same, oscillation circuit, and image rejection mixer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1345274A (en) * 1970-07-30 1974-01-30 Bruker Physik Ag Circuit arrangement for generating a phase-shiftable voltage
GB2196195A (en) * 1986-09-16 1988-04-20 Plessey Co Plc Quadrature-signal generator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1345274A (en) * 1970-07-30 1974-01-30 Bruker Physik Ag Circuit arrangement for generating a phase-shiftable voltage
GB2196195A (en) * 1986-09-16 1988-04-20 Plessey Co Plc Quadrature-signal generator

Also Published As

Publication number Publication date
GB9515641D0 (en) 1995-09-27
GB2292031A (en) 1996-02-07

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070922