JPH05508526A - 発振器濾過および増幅装置 - Google Patents

発振器濾過および増幅装置

Info

Publication number
JPH05508526A
JPH05508526A JP4510850A JP51085092A JPH05508526A JP H05508526 A JPH05508526 A JP H05508526A JP 4510850 A JP4510850 A JP 4510850A JP 51085092 A JP51085092 A JP 51085092A JP H05508526 A JPH05508526 A JP H05508526A
Authority
JP
Japan
Prior art keywords
oscillator
power
radiotelephone
buffer amplifier
resistor
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.)
Pending
Application number
JP4510850A
Other languages
English (en)
Japanese (ja)
Inventor
ヒエタラ，アレクサンダー・ダブリュー
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of JPH05508526A publication Critical patent/JPH05508526A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/005—Reducing noise, e.g. humm, from the supply
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1206—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification
    • H03B5/1218—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification the generator being of the balanced type
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1237—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/44—Transmit/receive switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Transceivers (AREA)
  • Noise Elimination (AREA)
JP4510850A 1991-04-15 1992-03-24 発振器濾過および増幅装置 Pending JPH05508526A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US68524891A 1991-04-15 1991-04-15
US685,248 1991-04-15

Publications (1)

Publication Number Publication Date
JPH05508526A true JPH05508526A (ja) 1993-11-25

Family

ID=24751375

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4510850A Pending JPH05508526A (ja) 1991-04-15 1992-03-24 発振器濾過および増幅装置

Country Status (5)

Country Link
JP (1) JPH05508526A (enrdf_load_stackoverflow)
CA (1) CA2078231A1 (enrdf_load_stackoverflow)
DE (1) DE4291072T1 (enrdf_load_stackoverflow)
GB (1) GB2261143A (enrdf_load_stackoverflow)
WO (1) WO1992019047A1 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8952765B2 (en) * 2012-03-23 2015-02-10 Mks Instruments, Inc. System and methods of bimodal automatic power and frequency tuning of RF generators

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959744A (en) * 1975-02-26 1976-05-25 Time Computer, Inc. CMOS oscillator having bias circuit outside oscillator feedback loop
US4523159A (en) * 1983-12-28 1985-06-11 Zenith Electronics Corporation Microwave oscillator and single balanced mixer for satellite television receiver
US4626802A (en) * 1984-12-24 1986-12-02 Motorola, Inc. GaAs FET oscillator noise reduction circuit
DE3631068A1 (de) * 1986-09-12 1988-03-24 Hagenuk Telecom Gmbh Drahtloses telefonsystem
JPH0250606A (ja) * 1988-08-12 1990-02-20 Nec Corp 周波数シンセサイザ

Also Published As

Publication number Publication date
CA2078231A1 (en) 1992-10-16
WO1992019047A1 (en) 1992-10-29
GB9225669D0 (en) 1993-02-24
GB2261143A (en) 1993-05-05
DE4291072T1 (enrdf_load_stackoverflow) 1993-04-01

Similar Documents

Publication Publication Date Title
US5963100A (en) Frequency synthesizer having a speed-up circuit
US2462181A (en) Radio transmitting system
TW407403B (en) An phase lock loop circuit and the wireless communication apparatus applied with the circuit
US20100056097A1 (en) Low power radio frequency receiver
KR20000005825A (ko) 전력증폭회로와안정화회로를구비하는무선주파수장치와,이러한장치를구비하는이동트랜시버단말기
EP1063769A2 (en) Transconductance amplifier with wideband noise filtering
UA34424C2 (uk) Радіотелефон та генератор для формування сигналу із заданою частотою (варіанти)
US8275336B2 (en) Apparatus and method for digitally controlling capacitance
US5247704A (en) Burst mode transmitter/receiver unit
KR100746143B1 (ko) Ｐｌｌ 회로 및 무선 통신 단말기기
US4518828A (en) Transmission circuit for an electronic telephone set
JPH05508526A (ja) 発振器濾過および増幅装置
US6480046B1 (en) Transmitter apparatus and methods using frequency doubling modulation
US5847622A (en) Quadrature phase shift keying modulating apparatus
Main et al. An FSK demodulator for Bluetooth applications having no external components
US3613003A (en) Transceivers with calling devices
DE19806097A1 (de) Verfahren und Gerät zum Senden von Hochfrequenzsignalen
US3441854A (en) Encoder-decoder circuit including diode switching of a stage from an amplifier to an oscillator
JP3122315B2 (ja) 時分割複信方式通信機
KR930017358A (ko) 전압 제어 수정 오실레이터(vcxo)를 사용한 베이스 유닛을 갖는 두개의 송수화기 무선 전화기 시스템
KR100354965B1 (ko) 위상동기루프 모듈
US1507887A (en) lubjslioo
KR950003653B1 (ko) 단일의 전압제어 발진기(vco)를 이용한 전이중방식의 무선통신 시스템
JP3176313B2 (ja) Ｐｌｌシンセサイザ回路
JPH07212333A (ja) 送受信機の発振回路