GB2558296B - Radio frequency modulator - Google Patents

Radio frequency modulator Download PDF

Info

Publication number
GB2558296B
GB2558296B GB1622224.2A GB201622224A GB2558296B GB 2558296 B GB2558296 B GB 2558296B GB 201622224 A GB201622224 A GB 201622224A GB 2558296 B GB2558296 B GB 2558296B
Authority
GB
United Kingdom
Prior art keywords
radio frequency
frequency modulator
modulator
radio
frequency
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.)
Active
Application number
GB1622224.2A
Other versions
GB2558296A (en
GB201622224D0 (en
Inventor
Edgar Beesley Graham
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1622224.2A priority Critical patent/GB2558296B/en
Publication of GB201622224D0 publication Critical patent/GB201622224D0/en
Publication of GB2558296A publication Critical patent/GB2558296A/en
Application granted granted Critical
Publication of GB2558296B publication Critical patent/GB2558296B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/362—Modulation using more than one carrier, e.g. with quadrature carriers, separately amplitude modulated
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0046—Open loops
    • H04L2027/0051—Harmonic tracking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/362—Modulation using more than one carrier, e.g. with quadrature carriers, separately amplitude modulated
    • H04L27/364—Arrangements for overcoming imperfections in the modulator, e.g. quadrature error or unbalanced I and Q levels

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplitude Modulation (AREA)
GB1622224.2A 2016-12-23 2016-12-23 Radio frequency modulator Active GB2558296B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1622224.2A GB2558296B (en) 2016-12-23 2016-12-23 Radio frequency modulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1622224.2A GB2558296B (en) 2016-12-23 2016-12-23 Radio frequency modulator

Publications (3)

Publication Number Publication Date
GB201622224D0 GB201622224D0 (en) 2017-02-08
GB2558296A GB2558296A (en) 2018-07-11
GB2558296B true GB2558296B (en) 2020-09-02

Family

ID=58360464

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1622224.2A Active GB2558296B (en) 2016-12-23 2016-12-23 Radio frequency modulator

Country Status (1)

Country Link
GB (1) GB2558296B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112671681B (en) * 2020-02-03 2022-03-01 腾讯科技（深圳）有限公司 Sideband suppression method and device, computer equipment and storage medium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4870374A (en) * 1988-04-13 1989-09-26 E-Systems, Inc. Modulator producing phase modulation by combining amplitude modulated signals
JPH06177929A (en) * 1992-12-07 1994-06-24 Advantest Corp Quadrature modulator and its calibration method
EP1053615A1 (en) * 1998-02-12 2000-11-22 Steven J. Shattil Multiple access method and system
EP1700442A1 (en) * 2003-12-17 2006-09-13 Telefonaktiebolaget LM Ericsson (publ) Polar modulation using amplitude modulated quadrature signals
EP2228963A2 (en) * 2003-03-18 2010-09-15 Qualcomm Incorporated Quadrature modulator which employs four 90-degrees-shifted carriers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4870374A (en) * 1988-04-13 1989-09-26 E-Systems, Inc. Modulator producing phase modulation by combining amplitude modulated signals
JPH06177929A (en) * 1992-12-07 1994-06-24 Advantest Corp Quadrature modulator and its calibration method
EP1053615A1 (en) * 1998-02-12 2000-11-22 Steven J. Shattil Multiple access method and system
EP2228963A2 (en) * 2003-03-18 2010-09-15 Qualcomm Incorporated Quadrature modulator which employs four 90-degrees-shifted carriers
EP1700442A1 (en) * 2003-12-17 2006-09-13 Telefonaktiebolaget LM Ericsson (publ) Polar modulation using amplitude modulated quadrature signals

Also Published As

Publication number Publication date
GB2558296A (en) 2018-07-11
GB201622224D0 (en) 2017-02-08

Similar Documents

Publication Publication Date Title
GB2535218B (en) Radio frequency connection arrangement
EP3302309A4 (en) Radio frequency electro-thrombectomy device
GB201419802D0 (en) Radio frequency communications devices
GB2531532B (en) Radio frequency amplifier
EP3262904A4 (en) Radio frequency module
IL252175A0 (en) Vertical radio frequency module
EP3206306A4 (en) Radio frequency unit
HK1252266A1 (en) Deployable radio frequency transmission line
EP3379658A4 (en) Radio frequency connector
EP3251171A4 (en) Radio frequency antenna
GB2552836B (en) Radio frequency connection arrangement
GB201522377D0 (en) Radio communication
EP3311497A4 (en) Radio frequency transmitter
EP3129867A4 (en) Radio frequency localization
GB201522373D0 (en) Radio frequency receiver
GB2528769B (en) Radio communication
IL250807B (en) Radio frequency connection arrangement
SG10201603910VA (en) Trim for Dual-Port Frequency Modulation
GB201713475D0 (en) Frequency converter
GB201420936D0 (en) Radio frequency cavities
GB201719545D0 (en) Proximity determination using radio devices
EP3514990A4 (en) Radio frequency system
GB201522767D0 (en) Radio transceivers
GB2558296B (en) Radio frequency modulator
GB201718633D0 (en) Radio frequency communication